Systems and methods for providing card interactions

Information

  • Patent Grant
  • 12141795
  • Patent Number
    12,141,795
  • Date Filed
    Thursday, December 28, 2023
    11 months ago
  • Date Issued
    Tuesday, November 12, 2024
    14 days ago
Abstract
A method including receiving a first application user credential associated with a user profile; comparing, for a first match, the first application user credential with a stored second application user credential, wherein the stored second application user credential is associated with a user identity; and responsive to finding a first match, verifying the user identity by performing the following: communicating with a card using near field communication; receiving a public key of a key pair of the card and cardholder identification information of an account holder of the card; instructing the card to generate a digital signature; receiving the digital signature from the card; verifying the digital signature using the public key; and comparing, for a second match, at least a portion of the user identity with at least a portion of the cardholder identification information.
Description
FIELD

The presently disclosed subject matter relates generally to systems methods for providing interactions between a contactless device and a user device, and, more particularly, to systems and methods for authenticating a user and/or providing other account functions to a cardholder based on an authenticated communication between a contactless transaction card and a user device of the cardholder.


BACKGROUND

Activating many cards, and more specifically financial cards (e.g., credit cards), involve the time-consuming process of cardholders calling a telephone number or visiting a website and entering or otherwise providing card information. Further, while the growing use of chip-based financial cards provides more secure features over the previous technology (e.g., magnetic strip cards) for in-person purchases, account access still typically relies on log-in credentials (e.g., username and password) to confirm a cardholder's identity. However, if the log-in credentials are compromised, another person could have access to the user's account.


Accordingly, there is a need for both an improved method of activating a card and an improved authentication for account access.


SUMMARY

Aspects of the disclosed technology include systems and methods for providing authenticated cardholder access. Consistent with the disclosed embodiments, the systems and methods may utilize one or more computing devices, processors, web servers, account servers, and/or contactless devices (e.g., radio frequency identification (RFID) cards). A method may include an application executing on a computing device receiving a first application user credential associated with a user profile. A processor associated with the application compares the first application user credential with a stored second application user credential. The stored second application user credential is associated with a user identity (e.g., a user account or user profile). In response to finding a match, the user may be authenticated to access the application. In some embodiments, the user identity may be further verified (e.g., second or multi-factor authentication) via an authentication communication protocol between the computing device and a contactless device.


For example, in some embodiments, the authentication communication protocol may be established as part of a wireless communication between a transaction card (e.g., a credit card associated with the user) through the use of near field communication (NFC) with the computing device (e.g., a smartphone). The authentication communication protocol may include receiving a digital signature from the transaction card, verifying the digital signature, and comparing at least a portion of card information to user account information (e.g., comparing the user identity with at least a portion of cardholder identification information). In some embodiments, the authentication communication protocol may conform to an offline dynamic data authentication protocol or an offline combined data authentication protocol as part of an EMV standard. In some embodiments, the authentication communication protocol between the contactless device and a user computing device may include one or more steps that mimic an authentication protocol between a contactless transaction card and a point-of-sale device, except in the disclosed embodiments, the authentication protocol is not used to complete a payment transaction and does not require real-time online connectivity to an issuer of the transaction card. Furthermore, the example authentication communication protocol disclosed herein may be used as a form of authentication for a user associated with the computing device (as opposed to a point of sale device) as detailed herein. And because the example authentication communication protocol uses two NFC capabilities (e.g., READ and WRITE), the example techniques use dynamic data and public and private keys to validate the signatures and certificates of the card issuer, the card, the user, and the interaction between the transaction card and a user's computing device, as detailed below. The example embodiments are thus advantageous over other NFC techniques that use only READ capability to perform static data check methods, such as to obtain a primary account number (PAN) of a transaction card, and thus lack the security available via offline dynamic data authentication. Thus, the example embodiments uniquely take advantage of the strong security of offline dynamic data authentication techniques to establish an authentication communication protocol between a transaction card and a user's computing device to achieve a trusted form of authentication that may be used to activate a card, as a form of multifactor authentication, and/or to unlock other functionality of a mobile application.


A contactless device (e.g., card, tag, transaction card or the like) may use near field communications technology for bi-directional or uni-directional contactless short-range communications based on, for example, radio frequency identification (RFID) standards, an EMV standard, or using NFC Data Exchange Format (NDEF) tags. The communication may use magnetic field induction to enable communication between electronic devices, including mobile wireless communications devices. Short-range high frequency wireless communications technology enables the exchange of data between devices over a short distance, such as only a few centimeters.


In the present disclosure, authentication or verification of a contactless device based on the completion of an example authentication communication protocol between a contactless device and a user computing device may be a primary form of authentication or a secondary form of authentication. Furthermore, completion of an example authentication communication protocol between the contactless device and a user computing device may enable other functionality. For example, in some embodiments, a cardholder can activate a contactless card based on the example authentication communication protocol by tapping it against a user computing device (e.g., a mobile device) implementing a card reader. For example, the device may include a card reader antenna (e.g., an NFC antenna) which may send and receive information with a contactless card, and an application executing on the device may be configured to implement card reading capabilities with the card reader. Through NFC, a communication link is established between the contactless card and the application. After establishing the communication link, the card transmits cardholder data including a digital signature to the application. Based on the digital signature (e.g. upon authentication of the card), the application recognizes the card as belonging to a specific account server (e.g., associated with a specific customer account). The application communicates data associated with the card to the specific account server and requests activation of the card. The account server activates the card within its system and transmits an indication of the success of the activation to the application. The application then displays the status of the card activation to the user.


The contactless card may also be linked to user credentials to provide greater account access. A user may enter user credentials to log onto the application. The application verifies the user credentials by comparing, for at least a portion of a match, the user credentials to stored user credentials. Once verified, the user may access certain first-level user account options. For greater access and/or executing certain account functions, i.e., second-level user account options, second-factor authentication may be required. For example, the contactless card may be tapped against the user device while card-reading is enabled. The application may communicate with the card (e.g., through NFC). The application may receive cardholder data and/or a digital signature from the card, and the application compares the cardholder data to a user identity associated with the user. If the cardholder data corresponds to the user identity, the user may access second-level user account options.


In an example scenario, to log a user into an application, an application associated with a computing device (e.g., smartphone) receives a user's credentials. The user credentials could be, for example, biometrics data (e.g., fingerprint data, optical data, and/or facial recognition), an established gesture associated with the user, and/or a username and password combination. A processor associated with the application performs a check of the provided application user credentials against a stored application user credential. The first match allows the user access to first-level user account options (e.g., display of account balance, display of recent transactions). A second level of authentication may be required to access second-level user account options. The second level of authentication may involve the application communicating with a transaction card by using a card reader associated with the computing device. From the transaction card, the application receives cardholder identification information of an account holder of the transaction card. Using a certificate authority public key, the application extracts an issuer public key from the transaction card. The application uses the issuer public key to extract the card public key of a key pair. The application then instructs the transaction card to generate a digital signature by using a private key of the key pair of the transaction card. Using the card public key, the application verifies the digital signature. To perform second-factor authentication, the processor compares, for a second match, at least a portion of the user identity with at least a portion of the cardholder identification information. For example, the processor may compare the user's name from the user identity with the user's name associated with the cardholder identification information. Upon authentication, the application grants the user access to several second-level user account options including a payment transfer, a payment request, a personal identification number (PIN) change request, and an address change request.


Further features of the disclosed design, and the advantages offered thereby, are explained in greater detail hereinafter with reference to specific example embodiments illustrated in the accompanying drawings, wherein like elements are indicated be like reference designators.





BRIEF DESCRIPTION OF THE DRAWINGS

Reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and which are incorporated into and constitute a portion of this disclosure, illustrate various implementations and aspects of the disclosed technology and, together with the description, serve to explain the principles of the disclosed technology. In the drawings:



FIG. 1 is a diagram of an example environment that may be used to implement one or more embodiments of the present disclosure.



FIG. 2 is a timing diagram providing authenticated cardholder access according to an example embodiment.



FIG. 3 is a timing diagram of peer-to-peer transfer according to an example embodiment.



FIG. 4 is a flow chart of a method providing authenticated cardholder access according to an example embodiment.



FIG. 5 is a flow chart of a method providing authenticated cardholder access according to an example embodiment.



FIG. 6 is a flow chart of a method providing activation of a card according to an example embodiment.



FIG. 7 is a flow chart of a method for pairing a card to a device according to an example embodiment.



FIG. 8 is a block diagram of an example computer system that may implement certain aspects of the present disclosure.



FIG. 9 is a flow chart of a method for activating a contactless card according to an example embodiment.



FIG. 10 is a timing diagram of authenticated cardholder access according to an example embodiment.





DETAILED DESCRIPTION

Some implementations of the disclosed technology will be described more fully with reference to the accompanying drawings. The disclosed technology may, however, be embodied in many different forms and should not be construed as limited to the implementations set forth herein. The components described hereinafter as making up various elements of the disclosed technology are intended to be illustrative and not restrictive. Many suitable components that would perform the same or similar functions as components described herein are intended to be embraced within the scope of the disclosed electronic devices and methods. Such other components not described herein may include, but are not limited to, for example, components developed after development of the disclosed technology.


It is also to be understood that the mention of one or more method steps does not preclude the presence of additional method steps or intervening method steps between those steps expressly identified.


Reference will now be made in detail to exemplary embodiments of the disclosed technology, examples of which are illustrated in the accompanying drawings and disclosed herein. Wherever convenient, the same references numbers will be used throughout the drawings to refer to the same or like parts.



FIG. 1 shows an example environment 100 that may implement certain aspects of the present disclosure. The components and arrangements shown in FIG. 1 are not intended to limit the disclosed embodiments as the components used to implement the disclosed processes and features may vary. As shown in FIG. 1, in some implementations the environment 100 includes one or more contactless cards 110a and 110b, one or more computing devices 120 which include one or more applications 122 and one or more processors 124, a network 130, a web server 140 which may include a processor 142 and a database 144, and an account server 150 (e.g., a server of a card issuer or card manager). As non-limiting examples, the computing device 120 may be a personal computer, a smartphone, a laptop computer, a tablet, or other personal computing device. The network 130 may include a network of interconnected computing devices more commonly referred to as the internet. The web server 140 may include one or more physical or logical devices (e.g., servers). The computing device 120 may run and display one or more applications and the related output(s) of the one or more applications (e.g., through APIs) 122. The computing device 120 may include a card reader 126 or one or more components that may function to read from and/or communicate with a contactless card (e.g., a digital card reader). In conjunction with the one or more applications 122, the card reader 126 communicates with the one or more contactless cards 110a and 110b (e.g., RFID cards). An example computer architecture that may be used to implement one or more of the computing device 120, the account server 150 and the web server 140 is described below with reference to FIG. 8.


In certain implementations according to the present disclosure, the contactless card 110a and/or 110b includes a radio frequency identification chip enabled to communicate via near field communication (NFC) or other short-range communication protocols. In other embodiments, the contactless card 110a may communicate through other means including, but not limited to, Bluetooth, satellite, and/or WiFi. According to some embodiments, the contactless card 110a communicates with the card reader 126 through near field communication when the contactless card 110a is within range of the card reader 126. The contactless card 110a may send to the application 122 a certificate authority public key and cardholder identification information of an account holder. The cardholder identification information may include a personal identification number (PIN), a name of the user, an address, a date of birth, and/or the like. In response to instructions from the application 122, the contactless card 110a may extract the issuer public key from the contactless card 110a. The application 122 uses the issuer public key to extract the card public key of a key pair from the contactless card 110a. The application 122 may instruct the contactless card 110a to generate a digital signature using the card private key of the key pair. In some embodiments, the contactless card 110a may send the digital signature to the computing device 120.


Turning to the computing device 120, in some embodiments, the computing device 120 includes an application 122 and a processor 124. According to some embodiments, the application 122 receives, from a user, a first application user credential associated with a user profile. The first application user credential may include biometrics data, an established gesture associated with user recognition, a username and password combination, and/or the like. The processor 124 compares the first application user credential with a stored second application user credential. The stored second application user credential may be associated with the user identity. In some embodiments, the stored second application user credential is maintained on a web server 140 and the first match is performed by the web server 140. In some embodiments, upon determining a first match between the first application user credential and the stored second application user credential, the application 122 may grant the user access to one or more first-level user account options of a user account. The user account may be a financial account, a health insurance account, and/or any other account of the like associated with any service provider (e.g., a transit account, an entertainment account, etc.). The first-level user account options of a user account may include a display of an account balance, a display of recent transactions, and/or the like.


After determining the first match, in response to one or more actions associated with the application or an account, the computing device 120 may further verify the user identity by communicating with the contactless card 110a, and verifying the contactless card 110a corresponds to the user account. The application 122 may communicate with the contactless card 110a using short-range wireless communication (e.g., near field communication (NFC)). The application 122 may be configured to interface with a card reader 126 of computing device 120 capable of communicating with a contactless card. As should be noted, those skilled in the art would understand that a distance of less than twenty centimeters is consistent with NFC range.


In some embodiments, the application 122 communicates through an associated reader (e.g., card reader 126) with the contactless card 110a. The application 122 may receive, from the contactless card 110a, a public key of a key pair of the card and cardholder identification information of an account holder of the card. The cardholder identification information may include a personal identification number (PIN), a name of the user, an address, a date of birth, and/or the like. In response to instructions from the application 122, the contactless card 110a may extract the issuer public key from the contactless card 110a. The application 122 uses the issuer public key to extract the card public key of a key pair from the contactless card 110a. The application 122 may instruct the contactless card 110a to generate a digital signature using a private key of the key pair of the contactless card 110a. The computing device 120 verifies the digital signature using the card public key. The processor 124 compares at least a portion of the user identity with at least a portion of the cardholder identification information. In some embodiments, upon determining a second match between the user identity (e.g., the identity previously authenticated by application 122) and the cardholder identification information obtained from the contactless card, the application 122 grants the user access to one or more second-level user account options of a user account. According to some embodiments, the second-level user account options have a higher security requirement than the first-level user account options. As non-limiting examples, the second-level user account options of a user account may include a payment transfer, a payment request, a personal identification number (PIN) change request, an address change request, a card activation, and/or the like.


In some embodiments, card activation may occur without first-level user authentication. For example, a contactless card 110a may communicate with the application 122 through the card reader 126 of the computing device through NFC. The communication (e.g., a tap of the card proximate the card reader 126 of the computing device 120) allows the application 122 to read the data associated with the card and perform an activation. In some cases, the tap may activate or launch application 122 and then initiate one or more actions or communications with an account server (e.g., 150) to activate the card for subsequent use. In some cases, if the application 122 is not installed on computing device 120, a tap of the card against the card reader 126 may initiate a download of the application 122 (e.g., navigation to an application download page). Subsequent to installation, a tap of the card may activate or launch the application 122, and then initiate (e.g., via the application or other back-end communication) activation of the card. After activation, the card may be used in various transactions including commercial transactions.


According to some embodiments, the contactless card 110a is a virtual payment card. In those embodiments, the application 122 may retrieve information associated with the contactless card 110a by accessing a digital wallet implemented on the computing device 120, wherein the digital wallet includes the virtual payment card.



FIG. 2 is a timing diagram illustrating an example sequence for providing authenticated cardholder access according to an example embodiment. According to some embodiments, at 202 the application 122 receives the first application user credentials. A user may provide the first application user credentials after receiving a prompt from the application 122. The first application user credentials may include biometrics data, an established gesture associated with user recognition, a username and password combination, facial recognition, and/or the like. At 204, the application 122 communicates the first application user credentials to the processor 124. The processor 124 compares the first application user credentials with stored second application user credential, at 206. The stored second application user credential may be located within a database associated with the computing device 120 or with application 120. In some embodiments, the stored second application user credential is maintained on a server (e.g., account server 150), the first application user credential is provided to the server, and the server compares the first application user credential to the stored second application user credential.


At 208, the processor 124 communicates the comparison result to the application 122 (e.g., for a match). In some embodiments, a first match grants the user access to first-level user account options of a user account (e.g., display of an account balance and/or recent transactions). Responsive to finding a first match, at 210, the application 122 initiates verifying the user identity. For example, the application 122 may output for display on the computing device 120 a notification to bring a contactless card 110a near the computing device 120. At 212, the application 122 communicates with the contactless card 110a (e.g., after being brought near the contactless card 110a). Communication between the application 122 and the contactless card 110a may involve the contactless card 110a being sufficiently close to the card reader 126 of the computing device to enable NFC data transfer between the application 122 and the contactless card 110a. At 214, the contactless card 110a sends, to the application 122, a public key of a public/private key pair and cardholder identification information of an account holder of the card. The application 122, at 216, instructs the contactless card 110a to generate a digital signature using a private key of the key pair of the card. In some cases, the cardholder identification information may be incorporated within the digital signature or otherwise conveyed with the digital signature.


At 218, the contactless card 110a sends the digital signature to the application 122. At 220, the application 122 communicates the digital signature with the processor 124. The processor 124, at 222, verifies the digital signature using the public key. For example, the card may provide a hash of the card's public key encrypted by a trusted source (e.g., a private key of a card provider), and verifying the digital signature may include: decrypting the encrypted hash (e.g., with a public key of the card provider); calculating a new hash of the digital signature; and comparing the decrypted original hash to the new hash for a match, at which point the card provider (e.g., issuer), and the transaction card may be authenticated. By using this READ and WRITE NFC capability to perform offline dynamic data authentication between a contactless card and a user's computing device, the example embodiments provide unique advantages that enable application 122 to more reliably (e.g., with greater security from counterfeiting or card skimming, or man in the middle attacks) authenticate a contactless card to be used as a form of multifactor authentication. As disclosed below in FIG. 10, communication between the application 122 and the contactless card 110a may include additional interactions. At 224, the processor 124 compares at least a portion of the user identity with at least a portion of the cardholder identification information. In some embodiments, a second match grants the user access to second-level user account options of a user account (e.g., a payment request, a payment transfer, a card activation, a personal identification number (PIN) change request, and an address change request). According to some embodiments, the second-level user account options represent more secured features of the application 122.


In some cases, verifying the digital signature may be performed by a server connected to the computing device. For example, processor 124 may output the digital signature for transmission to account server 150, and account server 150 may verify the digital signature.



FIG. 3 is a timing diagram of peer-to-peer transfer according to an example embodiment. In some embodiments, the application 122 may prompt a user for first application user credentials. At 302, the application 122 receives the first application user credentials. The first application user credentials may include biometrics data, an established gesture associated with user recognition, a username and password combination, facial recognition, and/or the like. The application 122 communicates the first application user credentials to the processor 124, at 304. At 306, the processor 124 transmits the first application user credentials to the web server 140. The web server 140, at 308, compares the first application user credentials to a second stored application user credential stored located on the web server 140 (e.g., to see if they match). At 310, the web server 140 transmits the match result to the processor 124. The processor 124, at 312, communicates the match result to the application 122. At 314, in response to a match being found, the application 122 provides access to the user account.


At 316, the application 122 receives an indication requesting a peer-to-peer transfer (e.g., an indication of a payor or a payee from the user account). For example, the user may select a request payment option. The peer-to-peer transfer may require authentication, such as requesting cardholder identification data for comparison to the user identity. At 318, the application 122 communicates with the contactless card 110a. Communication between the application 122 and the contactless card 110a may involve the contactless card 110a being sufficiently close to the card reader 126 of the computing device to enable NFC between the application 122 and the contactless card 110a. The contactless card 110a sends the public key of a public/private key pair and cardholder identification information to the application 122 at 320. At 322, the application 122 instructs the contactless card 110a to generate a digital signature using a private key of the key pair of the card. In some cases, the digital signature may include the cardholder identification information.


At 324, the contactless card 110a sends the digital signature to the application 122. At 326, the application 122 communicates the digital signature to the processor 124. The processor 124 verifies the digital signature at 328. At 330, the processor 124 compares (e.g., for a match), at least a portion of the user identity with at least a portion of the cardholder identification information. If the digital signature and cardholder identification are verified, at 331 the application 122 may request communication with a second transaction card from a second user.


In some embodiments the method may further include, at 332, processing the second transaction card (e.g., the other one of payor or payee) from the second user. At 332, the application processes the payment from the second user and requested by the first user. Processing the payment may involve communicating with the second contactless card 110b at 334. As mentioned above, communication between the application 122 and the second contactless card 110b may include the application 122 having access to card reader 126 (e.g., a digital reader) of the computing device 120, and the second contactless card 110b having an RFID chip. The contactless card 110b may be sufficiently close to the card reader 126 to enable near field communication therebetween. At 336, the second contactless card 110b sends data associated with the card to the application 122. The application 122 communicates the data associated with the second contactless card 110b to the processor 124 at 338. At 340, the processor 124 transmits the data associated with the second contactless card 110b and a payment authorization request to the account server 150. The account server 150 processes the payment request by either approving or denying the payment.


At 342, the account server 150 sends a status indicator of the payment request to the processor 124. The status indicator of the payment request may include an approved status indicator or a declined status indicator. At 344, the processor 124 communicates the status indicator of the payment request to the application 122. At 346, the application 122 displays a visual representation of the status indicator on the computing device 120.



FIG. 4 is a flow chart of a method providing authenticated cardholder access according to an example embodiment. At 402, the application 122 receives, from a user, a first application user credential associated with a user profile. As mentioned above, a user may provide the first application user credentials after receiving a prompt from the application 122. In some embodiments, the first application user credential may include biometrics data, an established gesture associated with user recognition, a username and password combination, and/or the like. At 404, the processor 124 compares the first application user credential with a stored second application user credential. The stored second application user credential may be associated with a user identity. The user identity may include a personal identification number (PIN), a name of the user, an address, a date of birth, and/or the like.


According to some embodiments, after finding a first match, the application 122 grants access to first-level user account options including a display of an account, a display of recent transactions, and/or the like. In response to finding a match, the computing device 120 verifies the user identity. At 406, the application 122 communicates with the contactless card 110a, for example, via an RFID chip in the contactless card 110a. The application 122 is associated with a card reader 126 allowing near field communication between the contactless card 110a and the application 122. At 408, the application 122 receives a public key of a public/private key pair of the card from the contactless card 110a. At 408, the application may also receive card information of the contactless card 110a. The card information may include cardholder information such as a personal identification number (PIN), a name of the user, an address, a date of birth, and/or the like. At 410, the application 122 instructs the contactless card 110a to generate a digital signature by using a private key of the key pair of the card. The contactless card 110a generates the digital signature, and the application 122 receives the digital signature from the contactless card 110a at 412. At 414, the computing device 120 verifies the digital signature by using the public key of the key pair of the card.


At 416, the processor 124 compares the card information to the user account. For example, processor 124 may compare the user identity to cardholder identification information. In some embodiments after verifying using the contactless card 110a, the application 122 grants access to second-level user account options including, as non-limiting examples, a payment request, a payment transfer, a card activation, a personal identification number (PIN) change request, an address change request, and/or the like. The second-level user account options may have a higher security requirement than the first-level user account options.



FIG. 5 is a flow chart of a method providing peer-to-peer payments according to an example embodiment. Referring to FIG. 5, the method includes: receiving, by the application 122, a first application user credential at 502 from a user; and comparing, for a match, the first application user credential with a stored second application user credential at 504. These features may be substantially similar to the corresponding features described above with reference to FIG. 4.


In response to receiving a request for a peer-to-peer payment (e.g., an in-person exchange of funds), the method may further include: communicating with a first contactless card 110a using near field communication at 506; receiving, from the contactless card 110a, a public key of a key pair and card information at 508; instructing the contactless card 110a to generate a digital signature at 510; receiving the digital signature from the contactless card 110a at 512; verifying the digital signature at 514; and comparing, for a second match, at least a portion of the user identity with at least a portion of the cardholder identification information at 516. These features may be substantially similar to the corresponding features described above with reference to FIG. 4.


Once the first contactless card 110a is verified, a prompt may be displayed requesting communication with the second contactless card 110b (e.g., a card tap). At 518, the application 122 communicates with the second contactless card 110b using near field communication. Communication may involve receiving data from the second contactless card 110b. For example, computing device 120 may receive a digital signature, a public key and/or card information from the second contactless card 110b similar to that discussed with reference to the first contactless card 110a. At 520, the processor 124 may transmit data associated with the second contactless card 110b and a request for payment authorization to the account server 150. The account server processes the request for payment and/or receipt either approves or declines the payment. At 522, the computing device 120 receives, from the account server 150, a status indicator of the request for payment authorization. The status request indicator may be an approved status indicator or a declined status indicator. At 524, the application 122 displays a visual representation of the status indicator on the computing device 120.



FIG. 6 is a flow chart of a method for communicating with a contactless card according to an example embodiment. The method 600 may be executed, for example, by computing device 120, for example, implementing a card reader 126 (e.g., a reader application and a short-range antenna). At 602, the application communicates with the contactless card 110a through near field communications. At 604, the communications may involve the application 122 receiving, from the contactless card 110a, card information including one or more of an activation field, the card issuer identifier, and card-holder identification information. In some cases, application 122 may request specific data from contactless card 110a. The activation field indicates whether the contactless card 110a is active (e.g., whether the card is activated or inactivated). The card issuer identifier may represent an institution issuing or managing the contactless card 110a.


In response to receiving data indicating that contactless card 110a is activated (605-Yes), the application 122: receives, from the contactless card 110a, a public key of a key pair at 606; instructs generation of a digital signature by the contactless card 110a using a private key of the key pair of the card at 608; receives the digital signature from the contactless card 110a at 610; and verifies the digital signature using the public key at 612. The features described with reference to 606-612 may be substantially similar to the relevant functions described above with reference to 508-514 of FIG. 5.


In response to verification of the digital signature, at 614, the application 122 grants the user access to first-level user account options. At 616, in response to a user request for a second-level user account options (e.g., an attempt to transfer account assets), the application 122 may prompt the user for a first user credential (e.g., biometrics data such as fingerprint data, optical data, and/or facial recognition, an established gesture associated with the user, and/or a username and password combination). The processor 124 compares at least a portion of the first user credential and a stored second user credential at 618. The stored user credential may be located on the computing device 120 and/or on the web server 140. At 620, in response to finding a match, the application 122 grants the user access to the second-level user account options.


In response to determining the contactless card 110a is inactivated (605-No), computing device 120 may activate the contactless card 110a. For example, at 622, the computing device 120 transmits, to account server 150, at least a portion of the card information and a request to activate the contactless card 110a. The account server 150 processes the request to activate the card by either approving or denying activation of the card. Responsive to transmitting the activation request, at 624, the computing device 120 receives a status indicator of the request to activate the contactless card 110a from the account server 150. The status indicator may include an activated status indicator or a denied status indicator. At 626, the application 122 may display a visual representation of the status indicator. In some embodiments and as shown at 628, after the computing device 120 receives an activated status indicator, the application 122 may instruct the contactless card 110a to update the activation field to reflect the card as being activated.


In some embodiments, the contactless card 110a may send a predetermined digital signature and public key to the computing device 120 as the card information. The computing device 120 may transmit, to the account server 150, and request verification of the predetermined digital signature. In some cases, computing device 120 may further transmit additional information (e.g., a network identifier, a device phone number or identification, other device information, etc.), which may be used as a validation check for activation, fraud prevention, higher security, and/or the like.


In some embodiments, a dedicated application 122 executing on computing device 120 may perform the activation of the contactless card 110a. In other embodiments, a webportal, a web-based app, an applet, and/or the like may perform the activation. Activation may be performed on the computing device 120, or the computing device may merely act as a go between for the contactless card 110a and an external device (e.g., account server 150). According to some embodiments, in providing activation, the application 122 may indicate, to the account server 150, the type of device performing the activation (e.g., personal computer, smartphone, POS, or tablet). Further, the application 122 may output, for transmission, different and/or additional data to the account server 150 depending on the type of device involved.


According to some embodiments, prior to performing card activation the application 122 requires the user to enter the first user credential for a user profile. The processor 124 verifies the first user credential against a stored second user credential associated with the user profile. The stored second user credential may be located on the computing device 120 and/or stored on a web server 140. In response to the user logging onto the application 122, the application 122 may display a plurality of user options (e.g., display of account balance, display of recent transactions, a card-activation option). Responsive to a user selection of the card-activation option from amongst the plurality of user options, the application 122 may output for display a request to communicate with the contactless card 110a.


In some embodiments, the example authentication communication protocol may mimic an offline dynamic data authentication protocol of the EMV standard that is commonly performed between a transaction card and a point-of-sale device, with some modifications. For example, in the disclosed embodiments, because the example authentication protocol is not used to complete a payment transaction with a card issuer/payment processor per se, some data values are not needed, and authentication may be performed without involving real-time online connectivity to the card issuer/payment processor. As is known in the art, point of sale (POS) systems submit transactions including a transaction value to a card issuer. Whether the issuer approves or denies the transaction may be based on if the card issuer recognizes the transaction value. Meanwhile, in certain embodiments of the present disclosure, transactions originating from a mobile device lack the transaction value associated with the POS systems. Therefore, in some embodiments, a dummy transaction value (i.e., a value recognizable to the card issuer and sufficient to allow activation to occur) may be passed as part of the example authentication communication protocol. POS based transactions may also decline transactions based on the number of transaction attempts (e.g., transaction counter). A number of attempts beyond a buffer value may result in a soft decline; the soft decline requiring further verification before accepting the transaction. In some implementations, a buffer value for the transaction counter may be modified to avoid declining legitimate transactions.


Turning back to FIG. 6, in some cases, after activating the card, the method may transition to 606 and/or 616. Moreover, as would be understood by one of ordinary skill, the blocks may be performed in various orders, additional functions may be incorporated therebetween, and not all described functions may be performed in every embodiment.



FIG. 7 is a flow chart of a method for pairing a card to a device according to an example embodiment. According to some embodiments, an application 122 is enabled on a computing device 120. At 702, communication between the contactless card 110a and the application 122 begins when the contactless card is within an acceptable distance (e.g., less than twenty centimeters) of the card reader 126 associated with the application 122. For example, application 122 may establish a communication link with the contactless card 110a using an NFC standard. The computing device 120 receives, from the contactless card 110a, data associated with the card at 704. The data associated with the card may include an unextracted public key of a public/private card key pair of the card. The unextracted public key may be previously encrypted by an issuer of contactless card 110a using a private key of a public/private issuer key pair. The application 122 using the issuer public key may extract the card public key.


In some embodiments, based on the data received from the contactless card 110a, the computing device may verify the compatibility of the contactless card 110a with the application 122. For example, the computing device 120 may ensure only credit cards are paired with the application 122 as opposed to other devices using NFC (e.g., access cards, tracking scanners). In some embodiments, the data received from the contactless card 110a may be used to generate a virtual payment card as part of a digital wallet associated with the computing device 120.


At 706, the computing device 120 transmits data to the contactless card 110a. The data may include instructions to generate a digital signature using the private key of the key pair. Responsive to generation of the digital signature, the computing device 120 may receive the digital signature from the contactless card 110a. The contactless card 110a may be verified based on the digital signature and the public key of the public/private card key pair computing device 120. As detailed above, the use of this READ and WRITE NFC capability to perform offline dynamic data authentication between a contactless card and a user's computing device provide unique advantages that enable application 122 to more reliably (e.g., with greater security from counterfeiting or card skimming, or man in the middle attacks) authenticate the contactless card to be used as a form of multifactor authentication.



FIG. 9 is a flow chart of a method for activating a contactless card according to an example embodiment. According to some embodiments, an application 122 is enabled on a computing device 120. The application 122 communicates with the contactless card 110a using, for example, NFC at 902. At 904, the computing device 120 receives data from the contactless card 110a, which may include activation field data, a card issuer identifier, cardholder identification information, and/or the like. At 906, the processor 124 transmits, to an account server 150, at least a portion of the card-holder identification information and a request to activate the contactless card 110a. In some embodiments, based on the card issuer identifier, the processor 124 may determine a particular account server of a plurality of account servers to transmit data to. The processor 124 may receive a status indicator of the request to activate the card at 908. The status indicator may be an activated status indicator or a denied status indicator. At 910, the application 122 displays a visual representation of the status indicator. In some embodiments and as shown at 912, the application 122 may instruct the contactless card 110a to update the activation field.



FIG. 10 is a timing diagram providing authenticated cardholder access according to an example embodiment. Referring to FIG. 10, the method includes: receiving, by the application 122, a first application user credential at 1002 from a user; communicating, by the application 122 and to the processor 124, the first application user credential at 1004; comparing (e.g., for a match), the first application user credential with a stored second application user credential at 1006; communicating the comparison result from the processor 124 to the application 122, at 1008; initiating, by the application 122, verification of the user identity at 1010; and communicating with the contactless card 110a at 1012. These features may be substantially similar to the corresponding features described above with reference to FIG. 2.


At 1014, in response to and the communication, the application 122 receives, from the contactless card 110a, an issuer public key of a key pair. The application 122 communicates the issuer public key to the processor 124 at 1016. Using the issuer public key, the processor 124 verifies the card issuer at 1018, (e.g., by decrypting certain static data certified by the card issuer using the issuer public key). In response to verifying the card issuer, at 1020, the processor 124 communicates the verification result to the application 122.


At 1022, the contactless card 110a sends the card public key of a card public/private key pair and cardholder identification information to the application 122. In some embodiments, the cardholder identification information and the card public key may be transmitted separately. At 1024, the application 122 communicates the card public key to the processor 124. At 1026, using the card public key, the processor 124 validates the card. The processor 124 communicates the validation result to the application 122, at 1028.


At 1030, the application 122 instructs the contactless card 110a to generate a digital signature using the card private key of the card public/private key pair. In response to generating the digital signature, the contactless card 110a sends the digital signature to the application 122, at 1032. At 1034, the application 122 communicates the digital signature to the processor 124. At 1036, the processor 124 verifies the digital signature. The processor 124 may use the card public key to verify the signature. Again, here, as detailed above, the implementation of the above READ and WRITE NFC capability to perform offline dynamic data authentication between a contactless card and a user's computing device (and/or application executing on the device) provide unique advantages that enable application 122 to more reliably (e.g., with greater security from counterfeiting or card skimming, or man in the middle attacks) authenticate the contactless card to be used as a form of multifactor authentication. At 1038, the processor 124 compares, for a second match, at least a portion of the user identity with at least a portion of the cardholder identification information. Subject to the second match, the user may be able to access second-level user account options.



FIG. 8 is a block diagram of an example computer system 800 that may implement certain aspects of the present disclosure. The computer system 800 may include a set of instructions 826 for controlling operation of the computer system 800. In some implementations, the computer system 800 may be connected (e.g., networked) to other machines in a Local Area Network (LAN), an intranet, an extranet, a satellite communications system, or the Internet. The computer system 800 may operate in the capacity of a server or a client machine in a client-server network environment, or as a peer machine in a peer-to-peer (or distributed) network environment. The computer system 800 may be a personal computer (PC), a tablet PC, a set-top box (STB), a Personal Digital Assistant (PDA), a cellular telephone, a web appliance, a server, a network router, switch or bridge, or any machine capable of executing a set of instructions (sequential or otherwise) that specify actions to be taken by that machine. Further, while a single computer system 800 is illustrated, the term “machine” shall also be taken to include any collection of machines (e.g., computers) that individually or jointly execute a set (or multiple sets) of instructions to perform any one or more of the methodologies discussed herein.


The computer system 800 includes a processing device 802, a main memory 804 (e.g., read-only memory (ROM), flash memory, dynamic random-access memory (DRAM) such as synchronous DRAM (SDRAM), etc.), a static memory 806 (e.g., flash memory, static random-access memory (SRAM), etc.), and a secondary memory 816 (e.g., a data storage device), which communicate with each other via a bus 808.


The processing device 802 represents one or more general-purpose processing devices such as a microprocessor, a microcontroller, a central processing unit, or the like. As non-limiting examples, the processing device 802 may be a reduced instruction set computing (RISC) microcontroller, a complex instruction set computing (CISC) microprocessor, a RISC microprocessor, very long instruction word (VLIW) microprocessor, a processor implementing other instruction sets, or one or more processors implementing a combination of instruction sets. The processing device 802 may also be one or more special-purpose processing devices such as an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), a digital signal processor (DSP), network processor, or the like. The processing device 802 is configured to execute the operations for electronically creating and trading derivative products based on one or more indices relating to volatility.


The computer system 800 may further include a network interface device 822, which is connectable to a network 130. The computer system 800 also may include a video display unit 810, i.e., a display (e.g., a liquid crystal display (LCD), a touch screen, or a cathode ray tube (CRT)), an alphanumeric input device 812 (e.g., a keyboard), a cursor control device 814 (e.g., a mouse), and a signal generation device 820 (e.g., a speaker).


The secondary memory 816 may include a non-transitory storage medium 824 on which is stored one or more sets of instructions 826 for the computer system 800 representing any one or more of the methodologies or functions described herein. For example, the instructions 826 may include instructions for implementing an asset tracking device including a power source and power management system or subsystem for a container or a trailer. The instructions 826 for the computer system 800 may also reside, completely or at least partially, within the main memory 804 and/or within the processing device 802 during execution thereof by the computer system 800, the main memory 804 and the processing device 802 also constituting computer-readable storage media.


While the storage medium 824 is shown in an example to be a single medium, the term “storage medium” should be taken to include a single medium or multiple media that store the one or more sets of instructions for a processing device. The term “storage medium” shall also be taken to include any medium that is capable of storing or encoding a set of instructions for execution by the machine that cause the machine to perform any one or more of the methodologies of the disclosure. The term “storage medium” shall accordingly be taken to include, but not be limited to, solid-state memories, and optical and magnetic media.


Throughout the specification and the claims, the following terms take at least the meanings explicitly associated herein, unless the context clearly dictates otherwise. The term “or” is intended to mean an inclusive “or.” Further, the terms “a,” “an,” and “the” are intended to mean one or more unless specified otherwise or clear from the context to be directed to a singular form.


In this description, numerous specific details have been set forth. It is to be understood, however, that implementations of the disclosed technology may be practiced without these specific details. In other instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. References to “one embodiment,” “an embodiment,” “some embodiments,” “example embodiment,” “various embodiments,” “one implementation,” “an implementation,” “example implementation,” “various implementations,” “some implementations,” etc., indicate that the implementation(s) of the disclosed technology so described may include a particular feature, structure, or characteristic, but not every implementation necessarily includes the particular feature, structure, or characteristic. Further, repeated use of the phrase “in one implementation” does not necessarily refer to the same implementation, although it may.


As used herein, unless otherwise specified the use of the ordinal adjectives “first,” “second,” “third,” etc., to describe a common object, merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.


While certain implementations of the disclosed technology have been described in connection with what is presently considered to be the most practical and various implementations, it is to be understood that the disclosed technology is not to be limited to the disclosed implementations, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.


This written description uses examples to disclose certain implementations of the disclosed technology, including the best mode, and also to enable any person skilled in the art to practice certain implementations of the disclosed technology, including making and using any devices or systems and performing any incorporated methods. The patentable scope of certain implementations of the disclosed technology is defined in the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.


Example Use Cases

The following example use cases describe examples of particular implementations of the present disclosure. These are intended solely for explanatory purposes and not for purposes of limitation. In one case, a first friend (payor) owes a second friend (payee) a sum of money. Rather than going to an ATM or requiring exchange through a peer-to-peer application, payor wishes to pay via payee's smartphone (e.g., computing device 120). Payee logs-on to the appropriate application on his smartphone and selects a payment request option. In response, the application requests authentication via payee's credit card. For example, the application outputs a display requesting that payee tap his RFID credit card. Once payee taps his RFID credit card against the screen of his smartphone with the application enabled, the card is read and verified. Next, the application displays a prompt for payor to tap his RFID card to send payment. After the payor taps his RFID card, the application reads the card information and transmits, via an associated processor, a request for payment to payor's card issuer. The card issuer processes the transaction and sends a status indicator of the transaction to the smartphone. The application then outputs for display the status indicator of the transaction.


In another example case, a credit card customer receives a new credit card in the mail Rather than activating the card by calling a provided telephone number associated with the card issuer or visiting logging into a website, the customer decides to activate the card via an application (e.g., application 122) on his smartphone (e.g., computing device 120). The customer selects the card activation feature from the application's menu. The application prompts the customer to tap his RFID credit card against the screen. Upon tapping the RFID credit card against the screen of the smartphone, the application communicates with a card issuer server and activates the customer's card. The application then displays a message indicating successful activation. The card activation is now complete.


In another example case, a customer wants to access his financial accounts on his mobile phone. The customer launches an application (e.g, a bank application) on the mobile device and inputs a username and password. At this stage, the customer may see first-level account information (e.g., recent purchases) and be able to perform first-level account options (e.g., pay credit-card). However, if the user attempts to access second-level account information (e.g., spending limit) or perform a second-level account option (e.g., transfer to external system) he must have a second-factor authentication. Accordingly, the application requests that a user provide a transaction card (e.g., credit card) for account verification. The user then taps his credit card to the mobile device, and the application verifies that the credit card corresponds to the user's account. Thereafter, the user may view second-level account data and/or perform second-level account functions.

Claims
  • 1. A method comprising: receiving, by an application associated with a computing device, a first user credential from a user;determining that the first user credential matches a stored user credential, the stored user credential associated with a user identity of a user account;verifying the user identity by: receiving, at the application, a public key of a key pair from a transaction card;sending, by the application, instructions to generate a digital signature by using a private key of the key pair to the transaction card;receiving, at the application, the digital signature from the transaction card; andverifying that the transaction card is associated with the user identity based on the digital signature using the public key;receiving, by the application, a card activation request from the user; andsending, by the application, cardholder data and the card activation request to an account provider server.
  • 2. The method of claim 1, wherein: the computing device is a mobile device associated with the user, andverifying the user identity further comprises: transmitting, by the application, the digital signature to the account provider server; andreceiving, by the application, an indication that the user identity was verified based on the digital signature from the account provider server.
  • 3. The method of claim 1, further comprising: receiving, by the application, a status of the card activation request, the status including activated or denied.
  • 4. The method of claim 1, wherein the first user credential comprises at least one of biometrics data, an established gesture associated with user recognition, or a username and password combination.
  • 5. The method of claim 1, wherein the user identity comprises at least one of a personal identification number (PIN), a name of the user, an address, or a date of birth.
  • 6. The method of claim 3, further comprising: causing, by the application, the computing device to display the status of the card activation request.
  • 7. The method of claim 1, wherein the first user credential is associated with a user of an account having an associated transaction card provided by an account provider.
  • 8. The method of claim 3, wherein: an activated status of the transaction card corresponds to the transaction card being enabled for commercial transactions.
  • 9. The method of claim 8, wherein: the transaction card being enabled for commercial transactions allows the transaction card to operate for commercial transactions using EMV standards, andthe transaction card is a contactless transaction card.
  • 10. The method of claim 1, further comprising: responsive to determining that the first user credential matches the stored user credential, providing, through the application, access to one or more first-level user account options of the user account; andresponsive to verifying the user identity, providing, through the application, access to one or more second-level user account options of the user account.
  • 11. The method of claim 10, wherein the user account is a financial account,the one or more first-level user account options comprises at least one of a display of an account balance or display of recent transactions, andthe one or more second-level user account options comprises at least one of a payment transfer, a payment request, a personal identification number (PIN) change request, a card activation request, or an address change request.
  • 12. A method comprising: receiving, at an application on a user device, a first user credential associated with a user; anddetermining that the first user credential matches a stored user credential;responsive to the first user credential matching the stored user credential, granting the user access to the application;receiving a request to access a user account option;responsive to the request to access the user account option requiring step-up authentication, verifying an identity of the user by: receiving, by the application, a public key of a key pair from a card;sending, by the application, instructions to generate a digital signature by using a private key of the key pair to the card;receiving, at the application, the digital signature from the card;verifying that the card is associated with the user based on the digital signature; andproviding, by the application, access to the user account option requiring step-up authentication.
  • 13. The method of claim 12, further comprising: sending, with the application, a card activation request to an account provider server;receiving, at the application, a status of the card activation request, the status including activated or denied, wherein an activated status of the card corresponds to the card being enabled for commercial transactions; andcausing, by the application, the user device to display the status of the card activation request.
  • 14. The method of claim 12, wherein receiving the public key further comprises: communicating, using an antenna associated with the user device, with the card using near field communication (NFC).
  • 15. The method of claim 14, wherein the card is configured to communicate with one or more payment devices to conduct a transaction in accordance with EMV standards, the one or more payment devices comprising the user device and a point-of-sale terminal.
  • 16. The method of claim 14, further comprising: prompting, by the application, the user to position the card within a first range of the user device, the first range being configured to facilitate near field communication (NFC) between the card and the user device;detecting, by the user device, that the card is positioned within the first range of the user device; andresponsive to detecting that the card is positioned within the first range of the user device, sending, by the application, a request for the public key to the card.
  • 17. The method of claim 12, wherein: the user account option requiring step-up authentication is a card activation request for the card to be enabled for commercial transactions.
  • 18. The method of claim 12, wherein the user account option requiring step-up authentication comprises at least one of a payment transfer, a payment request, or an address change request.
  • 19. A computing device comprising: an application;one or more processors operable to run the application; anda memory in communication with the one or more processors and storing instructions that, when executed by the one or more processors, are configured to cause the computing device to: receive a first user credential associated with a user;responsive to the first user credential matching a stored user credential, grant the user access to secure content within the application;receive a request to access a first user account option requiring step-up authentication;responsive to the request to access the first user account option, authenticate the user by: receiving, by the application, a public key of a key pair from a transaction card;instructing, by the application, the transaction card to generate a response comprising a digital signature using a private key of the key pair;receiving, at the application, the response comprising the digital signature from the transaction card;transmitting the digital signature to one or more servers associated with an account provider to authenticate the transaction card using the public key;receiving, from the one or more servers associated with the account provider server, an indication that the user was authenticated based on the digital signature; andproviding, by the application, access to the first user account option.
  • 20. The computing device of claim 19, wherein receiving the public key from the transaction card further comprises: communicating, using an antenna associated with the computing device, with the transaction card using near field communication (NFC).
  • 21. The computing device of claim 19, wherein the first user account option requiring step-up authentication comprises an address change request.
  • 22. The computing device of claim 19, wherein the issuer previously encrypted the public key.
  • 23. The computing device of claim 19, wherein: the first user account option is a card activation request, andthe instructions, when executed by the one or more processors are configured to cause the computing device to: send, by the application, the card activation request to the one or more servers associated with the account provider;receive, at the application, a status of the card activation request, the status including activated or denied, wherein an activated status of the transaction card corresponds to the transaction card being enabled for commercial transactions; andcause, by the application, the computing device to display the status of the card activation request.
  • 24. The computing device of claim 19, wherein: the first user account option is a payment request, andthe instructions, when executed by the one or more processors are configured to cause the computing device to: send, by the application, the payment request to the one or more servers associated with the account provider;receive, at the application, a status of the payment request, the status including accepted or rejected; andcause, by the application, the computing device to display the status of the payment request.
  • 25. The computing device of claim 19, wherein: the first user account option is a payment transfer.
  • 26. The computing device of claim 25, wherein: the instructions, when executed by the one or more processors are configured to cause the computing device to: send, by the application, the payment transfer to the one or more servers associated with the account provider;receive, at the application, a status of the payment transfer, the status including accepted or rejected; andcause, by the application, the computing device to display the status of the payment transfer.
CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation of, and claims priority under 35 U.S.C. § 120 to, U.S. patent application Ser. No. 17/559,218, filed Dec. 22, 2021, which is a continuation of U.S. patent application Ser. No. 16/526,149, now U.S. Pat. No. 11,216,806, filed Jul. 30, 2019, which is a divisional of U.S. patent application Ser. No. 16/135,954, now U.S. Pat. No. 10,395,244, filed Sep. 19, 2018, the entire contents and substance of which are hereby incorporated by reference in their entireties.

US Referenced Citations (614)
Number Name Date Kind
4683553 Mollier Jul 1987 A
4827113 Rikuna May 1989 A
4910773 Hazard et al. Mar 1990 A
5036461 Elliott et al. Jul 1991 A
5363448 Koopman, Jr. et al. Nov 1994 A
5377270 Koopman, Jr. et al. Dec 1994 A
5533126 Hazard Jul 1996 A
5537314 Kanter Jul 1996 A
5590038 Pitroda Dec 1996 A
5592553 Guski et al. Jan 1997 A
5616901 Crandall Apr 1997 A
5666415 Kaufman Sep 1997 A
5763373 Robinson et al. Jun 1998 A
5764789 Pare, Jr. et al. Jun 1998 A
5768373 Lohstroh et al. Jun 1998 A
5778072 Samar Jul 1998 A
5796827 Coppersmith et al. Aug 1998 A
5832090 Raspotnik Nov 1998 A
5883810 Franklin et al. Mar 1999 A
5901874 Deters May 1999 A
5929413 Gardner Jul 1999 A
5960411 Hartman et al. Sep 1999 A
6021203 Douceur et al. Feb 2000 A
6049328 Vanderheiden Apr 2000 A
6058373 Blinn et al. May 2000 A
6061666 Do et al. May 2000 A
6105013 Curry et al. Aug 2000 A
6199114 White et al. Mar 2001 B1
6199762 Hohle Mar 2001 B1
6216227 Goldstein et al. Apr 2001 B1
6227447 Campisano May 2001 B1
6282522 Davis et al. Aug 2001 B1
6324271 Sawyer et al. Nov 2001 B1
6342844 Rozin Jan 2002 B1
6367011 Lee et al. Apr 2002 B1
6402028 Graham, Jr. et al. Jun 2002 B1
6438550 Doyle et al. Aug 2002 B1
6501847 Helot et al. Dec 2002 B2
6631197 Taenzer Oct 2003 B1
6641050 Kelley et al. Nov 2003 B2
6655585 Shinn Dec 2003 B2
6662020 Aaro et al. Dec 2003 B1
6721706 Strubbe et al. Apr 2004 B1
6731778 Oda et al. May 2004 B1
6779115 Naim Aug 2004 B1
6792533 Jablon Sep 2004 B2
6829711 Kwok et al. Dec 2004 B1
6834271 Hodgson et al. Dec 2004 B1
6834795 Rasmussen et al. Dec 2004 B1
6852031 Rowe Feb 2005 B1
6865547 Brake, Jr. et al. Mar 2005 B1
6873260 Lancos et al. Mar 2005 B2
6877656 Jaros et al. Apr 2005 B1
6889198 Kawan May 2005 B2
6905411 Nguyen et al. Jun 2005 B2
6910627 Simpson-Young et al. Jun 2005 B1
6971031 Haala Nov 2005 B2
6990588 Yasukura Jan 2006 B1
7006986 Sines et al. Feb 2006 B1
7085931 Smith et al. Aug 2006 B1
7127605 Montgomery et al. Oct 2006 B1
7128274 Kelley et al. Oct 2006 B2
7140550 Ramachandran Nov 2006 B2
7152045 Hoffman Dec 2006 B2
7165727 de Jong Jan 2007 B2
7175076 Block et al. Feb 2007 B1
7202773 Oba et al. Apr 2007 B1
7206806 Pineau Apr 2007 B2
7232073 de Jong Jun 2007 B1
7246752 Brown Jul 2007 B2
7252242 Ho Aug 2007 B2
7254569 Goodman et al. Aug 2007 B2
7263507 Brake, Jr. et al. Aug 2007 B1
7270276 Vayssiere Sep 2007 B2
7278025 Saito et al. Oct 2007 B2
7287692 Patel et al. Oct 2007 B1
7290709 Tsai et al. Nov 2007 B2
7306143 Bonneau, Jr. et al. Dec 2007 B2
7319986 Praisner et al. Jan 2008 B2
7325132 Takayama et al. Jan 2008 B2
7373515 Owen et al. May 2008 B2
7374099 de Jong May 2008 B2
7375616 Rowse et al. May 2008 B2
7380710 Brown Jun 2008 B2
7424977 Smets et al. Sep 2008 B2
7453439 Kushler et al. Nov 2008 B1
7472829 Brown Jan 2009 B2
7487357 Smith et al. Feb 2009 B2
7527208 Hammad May 2009 B2
7568631 Gibbs et al. Aug 2009 B2
7584153 Brown et al. Sep 2009 B2
7597250 Finn Oct 2009 B2
7628322 Holtmanns et al. Dec 2009 B2
7652578 Braun et al. Jan 2010 B2
7689832 Talmor et al. Mar 2010 B2
7703142 Wilson et al. Apr 2010 B1
7748609 Sachdeva et al. Jul 2010 B2
7748617 Gray Jul 2010 B2
7748636 Finn Jul 2010 B2
7762457 Bonalle et al. Jul 2010 B2
7789302 Tame Sep 2010 B2
7793851 Mullen Sep 2010 B2
7796013 Murakami et al. Sep 2010 B2
7801799 Brake, Jr. et al. Sep 2010 B1
7801829 Gray et al. Sep 2010 B2
7805755 Brown et al. Sep 2010 B2
7809643 Phillips et al. Oct 2010 B2
7827115 Weller et al. Nov 2010 B2
7828214 Narendra et al. Nov 2010 B2
7848746 Juels Dec 2010 B2
7882553 Tuliani Feb 2011 B2
7900048 Andersson Mar 2011 B2
7908216 Davis et al. Mar 2011 B1
7922082 Muscato Apr 2011 B2
7933589 Mamdani et al. Apr 2011 B1
7949559 Freiberg May 2011 B2
7954716 Narendra et al. Jun 2011 B2
7954723 Charrat Jun 2011 B2
7962369 Rosenberg Jun 2011 B2
7993197 Kaminkow Aug 2011 B2
8005426 Huomo et al. Aug 2011 B2
8010405 Bortolin et al. Aug 2011 B1
RE42762 Shin et al. Sep 2011 E
8041954 Plesman Oct 2011 B2
8060012 Sklovsky et al. Nov 2011 B2
8074877 Mullen et al. Dec 2011 B2
8082450 Frey et al. Dec 2011 B2
8095113 Kean et al. Jan 2012 B2
8099332 Lemay et al. Jan 2012 B2
8103249 Markison Jan 2012 B2
8108687 Ellis et al. Jan 2012 B2
8127143 Abdallah et al. Feb 2012 B2
8135648 Oram et al. Mar 2012 B2
8140010 Symons et al. Mar 2012 B2
8141136 Lee et al. Mar 2012 B2
8150321 Winter et al. Apr 2012 B2
8150767 Wankmueller Apr 2012 B2
8186602 Itay et al. May 2012 B2
8196131 von Behren et al. Jun 2012 B1
8215563 Levy et al. Jul 2012 B2
8224753 Atef et al. Jul 2012 B2
8232879 Davis Jul 2012 B2
8233841 Griffin et al. Jul 2012 B2
8245292 Buer Aug 2012 B2
8249654 Zhu Aug 2012 B1
8266451 Leydier et al. Sep 2012 B2
8276814 Davis Oct 2012 B1
8285329 Zhu Oct 2012 B1
8302872 Mullen Nov 2012 B2
8312519 Bailey et al. Nov 2012 B1
8316237 Felsher et al. Nov 2012 B1
8332272 Fisher Dec 2012 B2
8346670 Hasson Jan 2013 B2
8365988 Medina, III et al. Feb 2013 B1
8369960 Tran et al. Feb 2013 B2
8371501 Hopkins Feb 2013 B1
8381307 Cimino Feb 2013 B2
8391719 Alameh et al. Mar 2013 B2
8417231 Sanding et al. Apr 2013 B2
8439271 Smets et al. May 2013 B2
8475367 Yuen et al. Jul 2013 B1
8489112 Roeding et al. Jul 2013 B2
8511542 Pan Aug 2013 B2
8511547 Rans Aug 2013 B2
8519822 Riegebauer Aug 2013 B2
8559872 Butler Oct 2013 B2
8566916 Bailey et al. Oct 2013 B1
8567670 Stanfield et al. Oct 2013 B2
8572386 Takekawa et al. Oct 2013 B2
8577810 Dalit et al. Nov 2013 B1
8583454 Beraja et al. Nov 2013 B2
8589335 Smith et al. Nov 2013 B2
8594730 Bona et al. Nov 2013 B2
8615468 Varadarajan Dec 2013 B2
8620218 Awad Dec 2013 B2
8667285 Coulier et al. Mar 2014 B2
8723941 Shirbabadi et al. May 2014 B1
8726405 Bailey et al. May 2014 B1
8740073 Vijayshankar et al. Jun 2014 B2
8750514 Gallo et al. Jun 2014 B2
8752189 de Jong Jun 2014 B2
8794509 Bishop et al. Aug 2014 B2
8799668 Cheng Aug 2014 B2
8806592 Ganesan Aug 2014 B2
8807440 von Behren et al. Aug 2014 B1
8811892 Khan et al. Aug 2014 B2
8814039 Bishop et al. Aug 2014 B2
8814052 Bona et al. Aug 2014 B2
8818867 Baldwin et al. Aug 2014 B2
8850538 Vernon et al. Sep 2014 B1
8861733 Benteo et al. Oct 2014 B2
8870081 Olson Oct 2014 B2
8880027 Darringer Nov 2014 B1
8888002 Marshall Chesney et al. Nov 2014 B2
8898088 Springer et al. Nov 2014 B2
8934837 Zhu et al. Jan 2015 B2
8977569 Rao Mar 2015 B2
8994498 Agrafioti et al. Mar 2015 B2
9004365 Bona et al. Apr 2015 B2
9038893 Kirkham May 2015 B2
9038894 Khalid May 2015 B2
9042814 Royston et al. May 2015 B2
9047531 Showering et al. Jun 2015 B2
9069976 Toole et al. Jun 2015 B2
9081948 Magne Jul 2015 B2
9104853 Venkataramani et al. Aug 2015 B2
9118663 Bailey et al. Aug 2015 B1
9122964 Krawczewicz Sep 2015 B2
9129199 Spodak Sep 2015 B2
9129280 Bona et al. Sep 2015 B2
9152832 Royston et al. Oct 2015 B2
9183490 Moreton Nov 2015 B2
9203800 Izu et al. Dec 2015 B2
9209867 Royston Dec 2015 B2
9251330 Boivie et al. Feb 2016 B2
9251518 Levin et al. Feb 2016 B2
9258715 Borghei Feb 2016 B2
9270337 Zhu et al. Feb 2016 B2
9275325 Newcombe Mar 2016 B2
9286606 Diamond Mar 2016 B2
9306626 Hall et al. Apr 2016 B2
9306942 Bailey et al. Apr 2016 B1
9324066 Archer et al. Apr 2016 B2
9324067 Van Os et al. Apr 2016 B2
9332587 Salahshoor May 2016 B2
9338622 Bjontegard May 2016 B2
9373141 Shakkarwar Jun 2016 B1
9379841 Fine et al. Jun 2016 B2
9413430 Royston et al. Aug 2016 B2
9413768 Gregg et al. Aug 2016 B1
9420496 Indurkar Aug 2016 B1
9426132 Alikhani Aug 2016 B1
9432339 Bowness Aug 2016 B1
9455968 Machani et al. Sep 2016 B1
9473509 Arsanjani et al. Oct 2016 B2
9491626 Sharma et al. Nov 2016 B2
9501776 Martin Nov 2016 B2
9553637 Yang et al. Jan 2017 B2
9619952 Zhao et al. Apr 2017 B1
9635000 Muftic Apr 2017 B1
9665858 Kumar May 2017 B1
9674705 Rose et al. Jun 2017 B2
9679286 Colnot et al. Jun 2017 B2
9680942 Dimmick Jun 2017 B2
9692879 Lack Jun 2017 B1
9710744 Wurmfeld Jul 2017 B2
9710804 Zhou et al. Jul 2017 B2
9740342 Paulsen et al. Aug 2017 B2
9740988 Levin et al. Aug 2017 B1
9763097 Robinson et al. Sep 2017 B2
9767329 Forster Sep 2017 B2
9769662 Queru Sep 2017 B1
9773151 Mil'shtein et al. Sep 2017 B2
9780953 Gaddam et al. Oct 2017 B2
9891823 Feng et al. Feb 2018 B2
9940571 Herrington Apr 2018 B1
9949065 Zarakas Apr 2018 B1
9953323 Candelore et al. Apr 2018 B2
9961194 Wiechman et al. May 2018 B1
9965632 Zarakas May 2018 B2
9965756 Davis et al. May 2018 B2
9965911 Wishne May 2018 B2
9977890 Alberti May 2018 B2
9978056 Seo May 2018 B2
9978058 Wurmfeld et al. May 2018 B2
9990795 Wurmfeld Jun 2018 B2
10007873 Heo Jun 2018 B2
10013693 Wyatt Jul 2018 B2
10043164 Dogin et al. Aug 2018 B2
10055715 Grassadonia Aug 2018 B1
10075437 Costigan et al. Sep 2018 B1
10121130 Pinski Nov 2018 B2
10129648 Hernandez et al. Nov 2018 B1
10133979 Eidam et al. Nov 2018 B1
10165440 Smith Dec 2018 B2
10210505 Zarakas Feb 2019 B2
10217105 Sangi et al. Feb 2019 B1
10242368 Poole Mar 2019 B1
10296910 Templeton May 2019 B1
10332102 Zarakas Jun 2019 B2
10360557 Locke Jul 2019 B2
10380471 Locke Aug 2019 B2
10453054 Zarakas Oct 2019 B2
10474941 Wurmfeld Nov 2019 B2
10475027 Guise Nov 2019 B2
10482453 Zarakas Nov 2019 B2
10482457 Poole Nov 2019 B2
10489774 Zarakas Nov 2019 B2
10510070 Wurmfeld Dec 2019 B2
10515361 Zarakas Dec 2019 B2
10535068 Locke Jan 2020 B2
10546444 Osborn Jan 2020 B2
10685349 Brickell Jun 2020 B2
10880741 Zarakas Dec 2020 B2
10970691 Koeppel Apr 2021 B2
11138593 Ho Oct 2021 B1
11138605 Aabye Oct 2021 B2
11188908 Locke Nov 2021 B2
11334872 Phillips May 2022 B2
11481764 Shakkarwar Oct 2022 B2
20010010723 Pinkas Aug 2001 A1
20010029485 Brody et al. Oct 2001 A1
20010034702 Mockett et al. Oct 2001 A1
20010054003 Chien et al. Dec 2001 A1
20020078345 Sandhu et al. Jun 2002 A1
20020093530 Krothapalli et al. Jul 2002 A1
20020100808 Norwood et al. Aug 2002 A1
20020120583 Keresman, III et al. Aug 2002 A1
20020152116 Yan et al. Oct 2002 A1
20020153424 Li Oct 2002 A1
20020165827 Gien et al. Nov 2002 A1
20030023554 Yap et al. Jan 2003 A1
20030034873 Chase et al. Feb 2003 A1
20030055727 Walker et al. Mar 2003 A1
20030078882 Sukeda et al. Apr 2003 A1
20030167350 Davis et al. Sep 2003 A1
20030208449 Diao Nov 2003 A1
20040015958 Veil et al. Jan 2004 A1
20040039919 Takayama et al. Feb 2004 A1
20040127256 Goldthwaite et al. Jul 2004 A1
20040215674 Odinak et al. Oct 2004 A1
20040230799 Davis Nov 2004 A1
20050044367 Gasparini et al. Feb 2005 A1
20050075985 Cartmell Apr 2005 A1
20050081038 Arditti Modiano et al. Apr 2005 A1
20050138387 Lam et al. Jun 2005 A1
20050156026 Ghosh et al. Jul 2005 A1
20050160049 Lundholm Jul 2005 A1
20050195975 Kawakita Sep 2005 A1
20050247797 Ramachandran Nov 2005 A1
20060006230 Bear et al. Jan 2006 A1
20060040726 Szrek et al. Feb 2006 A1
20060041402 Baker Feb 2006 A1
20060044153 Dawidowsky Mar 2006 A1
20060047954 Sachdeva et al. Mar 2006 A1
20060085848 Aissi et al. Apr 2006 A1
20060136334 Atkinson et al. Jun 2006 A1
20060173985 Moore Aug 2006 A1
20060174331 Schuetz Aug 2006 A1
20060242698 Inskeep et al. Oct 2006 A1
20060280338 Rabb Dec 2006 A1
20070033642 Ganesan et al. Feb 2007 A1
20070055630 Gauthier et al. Mar 2007 A1
20070061266 Moore et al. Mar 2007 A1
20070061487 Moore et al. Mar 2007 A1
20070116292 Kurita et al. May 2007 A1
20070118745 Buer May 2007 A1
20070197261 Humbel Aug 2007 A1
20070224969 Rao Sep 2007 A1
20070241182 Buer Oct 2007 A1
20070256134 Lehtonen et al. Nov 2007 A1
20070258594 Sandhu et al. Nov 2007 A1
20070278291 Rans et al. Dec 2007 A1
20080008315 Fontana et al. Jan 2008 A1
20080011831 Bonalle et al. Jan 2008 A1
20080014867 Finn Jan 2008 A1
20080035738 Mullen Feb 2008 A1
20080071681 Khalid Mar 2008 A1
20080072303 Syed Mar 2008 A1
20080086767 Kulkarni et al. Apr 2008 A1
20080103968 Bies et al. May 2008 A1
20080109309 Landau et al. May 2008 A1
20080110983 Ashfield May 2008 A1
20080120711 Dispensa May 2008 A1
20080126260 Cox May 2008 A1
20080156873 Wilhelm et al. Jul 2008 A1
20080162312 Sklovsky et al. Jul 2008 A1
20080164308 Aaron et al. Jul 2008 A1
20080207307 Cunningham, II et al. Aug 2008 A1
20080209543 Aaron Aug 2008 A1
20080223918 Williams et al. Sep 2008 A1
20080285746 Landrock et al. Nov 2008 A1
20080308641 Finn Dec 2008 A1
20090037275 Pollio Feb 2009 A1
20090048026 French Feb 2009 A1
20090132417 Scipioni et al. May 2009 A1
20090143104 Loh et al. Jun 2009 A1
20090171682 Dixon et al. Jul 2009 A1
20090191811 Griffin Jul 2009 A1
20090210308 Toomer et al. Aug 2009 A1
20090235339 Mennes et al. Sep 2009 A1
20090249077 Gargaro et al. Oct 2009 A1
20090282264 Ameil et al. Nov 2009 A1
20100023449 Skowronek et al. Jan 2010 A1
20100023455 Dispensa et al. Jan 2010 A1
20100029202 Jolivet et al. Feb 2010 A1
20100033310 Narendra et al. Feb 2010 A1
20100036769 Winters et al. Feb 2010 A1
20100078471 Lin et al. Apr 2010 A1
20100082491 Rosenblatt et al. Apr 2010 A1
20100094754 Bertran et al. Apr 2010 A1
20100095130 Bertran et al. Apr 2010 A1
20100100480 Altman et al. Apr 2010 A1
20100114731 Kingston et al. May 2010 A1
20100192230 Steeves et al. Jul 2010 A1
20100207742 Buhot et al. Aug 2010 A1
20100211797 Westerveld et al. Aug 2010 A1
20100240413 He et al. Sep 2010 A1
20100257357 McClain Oct 2010 A1
20100312634 Cervenka Dec 2010 A1
20100312635 Cervenka Dec 2010 A1
20110028160 Roeding et al. Feb 2011 A1
20110035604 Habraken Feb 2011 A1
20110060631 Grossman et al. Mar 2011 A1
20110068170 Lehman Mar 2011 A1
20110084132 Tofighbakhsh Apr 2011 A1
20110101093 Ehrensvard May 2011 A1
20110113245 Varadarajan May 2011 A1
20110125638 Davis et al. May 2011 A1
20110131415 Schneider Jun 2011 A1
20110153437 Archer et al. Jun 2011 A1
20110153496 Royyuru Jun 2011 A1
20110208658 Makhotin Aug 2011 A1
20110208965 Machani Aug 2011 A1
20110211219 Bradley et al. Sep 2011 A1
20110218911 Spodak Sep 2011 A1
20110238564 Lim et al. Sep 2011 A1
20110246780 Yeap et al. Oct 2011 A1
20110258452 Coulier et al. Oct 2011 A1
20110280406 Ma et al. Nov 2011 A1
20110282785 Chin Nov 2011 A1
20110294418 Chen Dec 2011 A1
20110312271 Ma et al. Dec 2011 A1
20120011063 Killian Jan 2012 A1
20120024947 Naelon Feb 2012 A1
20120030047 Fuentes et al. Feb 2012 A1
20120030121 Grellier Feb 2012 A1
20120047071 Mullen et al. Feb 2012 A1
20120079281 Lowenstein et al. Mar 2012 A1
20120109735 Krawczewicz et al. May 2012 A1
20120109764 Martin et al. May 2012 A1
20120143703 Wall Jun 2012 A1
20120143754 Patel Jun 2012 A1
20120150737 Rottink et al. Jun 2012 A1
20120178366 Levy et al. Jul 2012 A1
20120196583 Kindo Aug 2012 A1
20120207305 Gallo et al. Aug 2012 A1
20120209773 Ranganathan Aug 2012 A1
20120238206 Singh et al. Sep 2012 A1
20120239560 Pourfallah et al. Sep 2012 A1
20120252350 Steinmetz et al. Oct 2012 A1
20120254394 Barras Oct 2012 A1
20120284194 Liu et al. Nov 2012 A1
20120290472 Mullen et al. Nov 2012 A1
20120296818 Nuzzi et al. Nov 2012 A1
20120316992 Oborne Dec 2012 A1
20120317035 Royyuru et al. Dec 2012 A1
20120317628 Yeager Dec 2012 A1
20130005245 Royston Jan 2013 A1
20130008956 Ashfield Jan 2013 A1
20130026229 Jarman et al. Jan 2013 A1
20130048713 Pan Feb 2013 A1
20130054474 Yeager Feb 2013 A1
20130065564 Conner et al. Mar 2013 A1
20130080228 Fisher Mar 2013 A1
20130080229 Fisher Mar 2013 A1
20130099587 Lou et al. Apr 2013 A1
20130104251 Moore et al. Apr 2013 A1
20130106576 Hinman et al. May 2013 A1
20130119130 Braams May 2013 A1
20130130614 Busch-Sorensen May 2013 A1
20130144793 Royston Jun 2013 A1
20130171929 Adams et al. Jul 2013 A1
20130179351 Wallner Jul 2013 A1
20130185772 Jaudon et al. Jul 2013 A1
20130191279 Calman et al. Jul 2013 A1
20130200999 Spodak et al. Aug 2013 A1
20130211937 Elbirt Aug 2013 A1
20130216108 Hwang et al. Aug 2013 A1
20130226791 Springer et al. Aug 2013 A1
20130226796 Jiang et al. Aug 2013 A1
20130232082 Krawczewicz et al. Sep 2013 A1
20130238894 Ferg et al. Sep 2013 A1
20130282360 Shimota et al. Oct 2013 A1
20130297933 Fiducia Nov 2013 A1
20130303085 Boucher et al. Nov 2013 A1
20130304651 Smith Nov 2013 A1
20130312082 Izu et al. Nov 2013 A1
20130314593 Reznik et al. Nov 2013 A1
20130344857 Berionne et al. Dec 2013 A1
20140002238 Taveau et al. Jan 2014 A1
20140019352 Shrivastava Jan 2014 A1
20140027506 Heo et al. Jan 2014 A1
20140032409 Rosano Jan 2014 A1
20140032410 Georgiev et al. Jan 2014 A1
20140040120 Cho et al. Feb 2014 A1
20140040139 Brudnicki et al. Feb 2014 A1
20140040147 Varadarakan et al. Feb 2014 A1
20140047235 Lessiak et al. Feb 2014 A1
20140067690 Pitroda et al. Mar 2014 A1
20140074637 Hammad Mar 2014 A1
20140074655 Lim et al. Mar 2014 A1
20140081720 Wu Mar 2014 A1
20140081785 Valadas Preto Mar 2014 A1
20140138435 Khalid May 2014 A1
20140171034 Aleksin et al. Jun 2014 A1
20140171039 Bjontegard Jun 2014 A1
20140172700 Teuwen et al. Jun 2014 A1
20140180851 Fisher Jun 2014 A1
20140208112 McDonald et al. Jul 2014 A1
20140214674 Narula Jul 2014 A1
20140229375 Zaytzsev et al. Aug 2014 A1
20140245391 Adenuga Aug 2014 A1
20140256251 Caceres et al. Sep 2014 A1
20140258099 Rosano Sep 2014 A1
20140258113 Gauthier et al. Sep 2014 A1
20140258125 Gerber et al. Sep 2014 A1
20140274179 Zhu et al. Sep 2014 A1
20140279479 Maniar et al. Sep 2014 A1
20140337235 Van Heerden et al. Nov 2014 A1
20140339315 Ko Nov 2014 A1
20140346860 Aubry et al. Nov 2014 A1
20140365780 Movassaghi Dec 2014 A1
20140379361 Mahadkar et al. Dec 2014 A1
20150012444 Brown et al. Jan 2015 A1
20150032635 Guise Jan 2015 A1
20150071486 Rhoads et al. Mar 2015 A1
20150088757 Zhou et al. Mar 2015 A1
20150089586 Ballesteros Mar 2015 A1
20150134452 Williams May 2015 A1
20150140960 Powell et al. May 2015 A1
20150154595 Collinge et al. Jun 2015 A1
20150170138 Rao Jun 2015 A1
20150178724 Ngo et al. Jun 2015 A1
20150186871 Laracey Jul 2015 A1
20150186887 Khan et al. Jul 2015 A1
20150199673 Savolainen Jul 2015 A1
20150205379 Mag et al. Jul 2015 A1
20150302409 Malek et al. Oct 2015 A1
20150317626 Ran et al. Nov 2015 A1
20150332266 Friedlander et al. Nov 2015 A1
20150339474 Paz et al. Nov 2015 A1
20150350171 Brumley Dec 2015 A1
20150371234 Huang et al. Dec 2015 A1
20160012465 Sharp Jan 2016 A1
20160026997 Tsui et al. Jan 2016 A1
20160048913 Rausaria et al. Feb 2016 A1
20160055480 Shah Feb 2016 A1
20160057619 Lopez Feb 2016 A1
20160065370 Le Saint et al. Mar 2016 A1
20160078430 Douglas Mar 2016 A1
20160087957 Shah et al. Mar 2016 A1
20160092696 Guglani et al. Mar 2016 A1
20160148193 Kelley et al. May 2016 A1
20160189143 Koeppel Jun 2016 A1
20160232523 Venot et al. Aug 2016 A1
20160239672 Khan et al. Aug 2016 A1
20160253651 Park et al. Sep 2016 A1
20160255072 Liu Sep 2016 A1
20160261411 Yau Sep 2016 A1
20160267486 Mitra et al. Sep 2016 A1
20160277383 Guyomarc'h et al. Sep 2016 A1
20160277388 Lowe et al. Sep 2016 A1
20160307187 Guo et al. Oct 2016 A1
20160307189 Zarakas et al. Oct 2016 A1
20160307190 Zarakas Oct 2016 A1
20160314472 Ashfield Oct 2016 A1
20160330027 Ebrahimi Nov 2016 A1
20160335531 Mullen et al. Nov 2016 A1
20160379217 Hammad Dec 2016 A1
20170004502 Quentin et al. Jan 2017 A1
20170011395 Pillai et al. Jan 2017 A1
20170011406 Tunnell et al. Jan 2017 A1
20170017957 Radu Jan 2017 A1
20170017964 Janefalkar et al. Jan 2017 A1
20170024716 Jiam et al. Jan 2017 A1
20170039566 Schipperheijn Feb 2017 A1
20170041759 Gantert et al. Feb 2017 A1
20170068950 Kwon Mar 2017 A1
20170103388 Pillai et al. Apr 2017 A1
20170104739 Lansler et al. Apr 2017 A1
20170109509 Baghdasaryan Apr 2017 A1
20170109730 Locke et al. Apr 2017 A1
20170116447 Cimino et al. Apr 2017 A1
20170124568 Moghadam May 2017 A1
20170140379 Deck May 2017 A1
20170154328 Zarakas et al. Jun 2017 A1
20170154333 Gleeson et al. Jun 2017 A1
20170180134 King Jun 2017 A1
20170230189 Toll et al. Aug 2017 A1
20170237301 Elad et al. Aug 2017 A1
20170289127 Hendrick Oct 2017 A1
20170295013 Claes Oct 2017 A1
20170316696 Bartel Nov 2017 A1
20170317834 Smith et al. Nov 2017 A1
20170330173 Woo et al. Nov 2017 A1
20170374070 Shah et al. Dec 2017 A1
20180032994 Myers et al. Feb 2018 A1
20180034507 Wobak et al. Feb 2018 A1
20180039986 Essebag et al. Feb 2018 A1
20180039987 Molino Feb 2018 A1
20180068316 Essebag et al. Mar 2018 A1
20180129945 Saxena et al. May 2018 A1
20180158042 Finch Jun 2018 A1
20180160255 Park Jun 2018 A1
20180191501 Lindemann Jul 2018 A1
20180205712 Versteeg et al. Jul 2018 A1
20180240106 Garrett et al. Aug 2018 A1
20180254909 Hancock Sep 2018 A1
20180268132 Buer et al. Sep 2018 A1
20180270214 Caterino et al. Sep 2018 A1
20180294959 Traynor et al. Oct 2018 A1
20180300716 Carlson Oct 2018 A1
20180302396 Camenisch et al. Oct 2018 A1
20180315050 Hammad Nov 2018 A1
20180316666 Koved et al. Nov 2018 A1
20180322486 Deliwala et al. Nov 2018 A1
20180359100 Gaddam et al. Dec 2018 A1
20190014107 George Jan 2019 A1
20190019375 Foley Jan 2019 A1
20190036678 Ahmed Jan 2019 A1
20190172055 Hale Jun 2019 A1
20190238517 D'Agostino et al. Aug 2019 A1
20190303945 Mitra Oct 2019 A1
Foreign Referenced Citations (43)
Number Date Country
3010336 Jul 2017 CA
101192295 Jun 2008 CN
103023643 Apr 2013 CN
103417202 Dec 2013 CN
1085424 Mar 2001 EP
1223565 Jul 2002 EP
1265186 Dec 2002 EP
1469419 Oct 2004 EP
1783919 May 2007 EP
2139196 Dec 2009 EP
2852070 Mar 2015 EP
2457221 Aug 2009 GB
2516861 Feb 2015 GB
2551907 Jan 2018 GB
101508320 Apr 2015 KR
2015140132 Dec 2015 KR
0049586 Aug 2000 WO
2006070189 Jul 2006 WO
2008055170 May 2008 WO
2009025605 Feb 2009 WO
WO-2010032215 Mar 2010 WO
2010049252 May 2010 WO
2011089423 Jul 2011 WO
2011112158 Sep 2011 WO
2012001624 Jan 2012 WO
2013039395 Mar 2013 WO
2013155562 Oct 2013 WO
2013192358 Dec 2013 WO
2014043278 Mar 2014 WO
2014170741 Oct 2014 WO
2015179649 Nov 2015 WO
2015183818 Dec 2015 WO
2016097718 Jun 2016 WO
2016160816 Oct 2016 WO
2016168394 Oct 2016 WO
2017042375 Mar 2017 WO
2017042400 Mar 2017 WO
2017047855 Mar 2017 WO
2017157859 Sep 2017 WO
2017208063 Dec 2017 WO
2018063809 Apr 2018 WO
2018137888 Aug 2018 WO
2019022585 Jan 2019 WO
Non-Patent Literature Citations (51)
Entry
“Verified by Visa Acquirer and Merchant Implementation Guide”, May 2011, 114 pages (Year: 2011).
EMVCo White Paper on Contactless Mobile Payment, Version 2.2, Jun. 2015, 33 pages (Year: 2015).
EMV Issuer and Application Security Guidelines, Version 2.6, Aug. 2018, 78 pages (Year: 2018).
https://monzo.com/blog/2017/11/14/nfc-card-activation/; (Year: 2017).
Extended European Search Report in related EP Application No. 19198300.6, mailed Feb. 25, 2020.
Anonymous: “Issuer and Application Security Guidelines,” Aug. 31, 2018, https://www.emvco.com/terms-of-use/?u=wp-content/uploads/documents/EMV-swg-nh20r2a-Issuer-Security-Guidelines-for-1st-Gen-August2018.pdf.
Anonymous: “Tap to Activate Your Debit Card,” Nov. 14, 2017, https://monzo.com/blog/2017/11/14/nfc-card-activation.
Partial European Search Report in related EP Application No. 19198300.6, mailed Nov. 27, 2019.
Smart Card Alliance, “Co-Branded Multi-Application Contactless Cards for Transit and Financial Payment,” A Smart Card Alliance Transportation Council White Paper (40 pages), Mar. 2008.
Batina, L. and Poll, E., “SmartCards and RFID”, Course PowerPoint Presentation for IPA Security Course, Digital Security at University of Nijmegen, Netherlands (date unknown) 75 pages.
Haykin, M. and Warnar, R., “Smart Card Technology: New Methods for Computer Access Control”, Computer Science and Technology NIST Special Publication 500-157:1-60 (1988).
Lehpamer, H., “Component of the RFID System”, RFID Design Principles, 2nd edition pp. 133-201 (2012).
Author Unknown, “CardrefresherSM from American Express®”, [online] 2019 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://merchant-channel.americanexpress.com/merchant/en_US/cardrefresher, 2 pages.
Author Unknown, “Add Account Updater to your recurring payment tool”, [online] 2018-19 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://www.authorize.net/our-features/account-updater/, 5 pages.
Author Unknown, “Visa® Account Updater for Merchants”, [online] 2019 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://USA.visa.com/dam/VCOM/download/merchants/visa-account-updater-product-information-fact-sheet-for-merchants.pdf, 2 pages.
Author Unknown, “Manage the cards that you use with Apple Pay”, Apple Support [online] 2019 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://support.apple.com/en-US/HT205583, 5 pages.
Author Unknown, “Contactless Specifications for Payment Systems”, EMV Book B—Entry Point Specification [online] 2016 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://www.emvco.com/wp-content/uploads/2017/05/BookB_Entry_Point_Specification_v2_6_20160809023257319.pdf, 52 pages.
Author Unknown, “EMV Integrated Circuit Card Specifcations for Payment Systems, Book 2, Security and Key Management,” Version 3.4, [online] 2011 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://www.emvco.com/wp-content/uploads/2017/05/EMV_v4.3_Book_2_Security_and_Key_Management_20120607061923900.pdf, 174 pages.
Author Unknown, “NFC Guide: All You Need to Know About Near Field Communication”, Square Guide [online] 2018 [retrieved on Nov. 13, 2018]. Retrieved from Internet URL: https://squareup.com/guides/nfc, 8 pages.
Profis, S., “Everything you need to know about NFC and mobile payments” CNET Directory [online], 2014 [retrieved on Mar. 25, 2019]. Retrieved from the Internet URL: https://www.cnet.com/how-to/how-nfc-works-and-mobile-payments/, 6 pages.
Cozma, N., “Copy data from other devices in Android 5.0 Lollipop setup”, CNET Directory [online] 2014 [retrieved on Mar. 25, 2019]. Retrieved from the Internet URL: https://www.cnet.com/how-to/copy-data-from-other-devices-in-android-5-0-lollipop-setup/, 5 pages.
Kevin, Android Enthusiast, “How to copy text string from nfc tag”, StackExchange [online] 2013 [retrieved on Mar. 25, 2019]. Retrieved from the Internet URL: https://android.stackexchange.com/questions/55689/how-to-copy-text-string-from-nfc-tag, 11 pages.
Author Unknown, “Tap & Go Device Setup”, Samsung [online] date unknown [retrieved on Mar. 25, 2019]. Retrieved from the Internet URL: https://www.samsung.com/US/switch-me/switch-to-the-galaxy-s-5/app/partial/setup-device/tap-go.html, 1 page.
Author Unknown, “Multiple encryption”, Wikipedia [online] 2019 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://en.wikipedia.org/wiki/Multiple_encryption, 4 pages.
Krawczyk, et al., “HMAC: Keyed-Hashing for Message Authentication”, Network Working Group RFC:2104 memo [online] 1997 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://tools.ietf.org/html/rfc2104, 12 pages.
Song, et al., “The AES-CMAC Algorithm”, Network Working Group RFC: 4493 memo [online] 2006 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://tools.ietf.org/html/rfc4493, 21 pages.
Katz, J. and Lindell, Y., “Aggregate Message Authentication Codes”, Topics in Cryptology [online] 2008 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://www.cs.umd.edu/˜jkatz/papers/aggregateMAC.pdf, 11 pages.
Adams, D., and Maier, A-K., “Goldbug Big Seven open source crypto-messengers to be compared—or: Comprehensive Confidentiality Review & Audit of GoldBug Encrypting E-Mail-Client & Secure Instant Messenger”, Big Seven Study 2016 [online] [retrieved on Mar. 25, 2018]. Retrieved from Internet URL: https://sf.net/projects/goldbug/files/bigseven-crypto-audit.pdf, 309 pages.
Author Unknown, “Triple DES”, Wikipedia [online] 2018 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://simple.wikipedia.org/wiki/Triple_DES, 2 pages.
Song F., and Yun, A.I., “Quantum Security of NMAC and Related Constructions—PRF domain extension against quantum attacks”, IACR Cryptology ePrint Archive [online] 2017 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://eprint.iacr.org/2017/509.pdf, 41 pages.
Saxena, N., “Lecture 10: NMAC, HMAC and Number Theory”, CS 6903 Modern Cryptography [online] 2008 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: http://isis.poly.edu/courses/cs6903/Lectures/lecture10.pdf, 8 pages.
Berg, G., “Fundamentals of EMV”, Smart Card Alliance [online] date unknown [retrieved on Mar. 27, 2019]. Retrieveed from Internet URL: https://www.securetechalliance.org/resources/media/scap13_preconference/02.pdf, 37 pages.
Pierce, K., “Is the amazon echo nfc compatible?”, Amazon.com Customer Q&A [online] 2016 [retrieved on Mar. 26, 2019]. Retrieved from Internet URL: https://www.amazon.com/ask/questions/Tx1RJXYSPE6XLJD?_ encodi . . . , 2 pages.
Author Unknown, “Multi-Factor Authentication”, idaptive [online] 2019 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://www.centrify.com/products/application-services/adaptive-multi-factor-authentication/risk-based-mfa/, 10 pages.
Author Unknown, “Adaptive Authentication”, SecureAuth [online] 2019 [retrieved on Mar. 25, 2019}. Retrieved from Internet URL: https://www.secureauth.com/products/access-management/adaptive-authentication, 7 pages.
Van den Breekel, J., et al., “EMV in a nutshell”, Technical Report, 2016 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://www.cs.ru.nl/E.Poll/papers/EMVtechreport.pdf, 37 pages.
Author Unknown, “Autofill”, Computer Hope [online] 2018 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://www.computerhope.com/jargon/a/autofill.htm, 2 pages.
Author Unknown, “Fill out forms automatically”, Google Chrome Help [online] 2019 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://support.google.com/chrome/answer/142893?co=GENIE.Platform%3DDesktop&hl=en, 3 pages.
Author Unknown, “Autofill credit cards, contacts, and passwords in Safari on Mac”, Apple Safari User Guide [online] 2019 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://support.apple.com/guide/safari/use-autofill-ibrw1103/mac, 3 pages.
Menghin, M.J., “Power Optimization Techniques for Near Field Communication Systems”, 2014 Dissertation at Technical University of Graz [online]. Retrieved from Internet URL: https://diglib.tugraz.at/download.php?id=576a7b910d2d6&location=browse, 135 pages.
Mareli, M., et al., “Experimental evaluation of NFC reliability between an RFID tag and a smartphone”, Conference paper (2013) IEEE Africon at Mauritius [online] [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://core.ac.uk/download/pdf/54204839.pdf, 5 pages.
Davison, A., et al., “MonoSLAM: Real-Time Single Camera Slam”, IEEE Transactions on Pattern Analysis and Machine Intelligence 29(6): 1052-1067 (2007).
Barba, R., “Sharing your location with your bank sounds creepy, but it's also useful”, Bankrate, LLC [online] 2017 [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://www.bankrate.com/banking/banking-app-location-sharing/, 6 pages.
Author Unknown: “onetappayment™”, [online] Jan. 24, 2019, [retrieved on Mar. 25, 2019]. Retrieved from Internet URL: https://www.payubiz.in/onetap, 4 pages.
Vu, et al., “Distinguishing users with capacitive touch communication”, Proceedings of the Annual International Conference on Mobile Computing and Networking, 2012, MOBICOM. 10.1145/2348543.2348569.
Pourghomi, P., et al., “A Proposed NFC Payment Application,” International Journal of Advanced Computer Science and Applications, 4(8):173-181 (2013).
Author unknown, “EMV Card Personalization Specification”, EMVCo., LLC., specification version 1.0, (2003) 81 pages.
Ullmann et al., “On-Card” User Authentication for Contactless Smart Cards based on Gesture Recognition, paper presentation LNI proceedings, (2012) 12 pages.
Faraj, S.T., et al., “Investigation of Java Smart Card Technology for Multi-Task Applications”, J of Al-Anbar University for Pure Science, 2(1):23 pages (2008).
Dhamdhere, P., “Key Benefits of a Unified Platform for Loyalty, Referral Marketing, and UGC” Annex Cloud [online] May 19, 2017 [retrieved on Jul. 3, 2019]. Retrieved from Internet URL: https://www.annexcloude.com/blog/benefits-unified-platform/, 13 pages.
Office Action in related European Patent Application No. 19198300.6 mailed Jul. 5, 2024.
Related Publications (1)
Number Date Country
20240127229 A1 Apr 2024 US
Divisions (1)
Number Date Country
Parent 16135954 Sep 2018 US
Child 16526149 US
Continuations (2)
Number Date Country
Parent 17559218 Dec 2021 US
Child 18398231 US
Parent 16526149 Jul 2019 US
Child 17559218 US