Andrew John Leiserson

Person

San Francisco, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Server-assisted pairing for wireless communications
- Patent number 12,207,322
- Issue date Jan 21, 2025
- Block, Inc.
- Afshin Rezayee
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Secure feature and key management in integrated circuits
- Patent number 12,113,786
- Issue date Oct 8, 2024
- CRYPTOGRAPHY RESEARCH, INC.
- Paul Carl Kocher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Detecting for fraud and tampering at a payment terminal
- Patent number 12,106,307
- Issue date Oct 1, 2024
- Block, Inc.
- Max Guise
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Buffer access for side-channel attack resistance
- Patent number 11,861,051
- Issue date Jan 2, 2024
- RAMBUS INC.
- Andrew John Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Masked gate logic for resistance to power analysis
- Patent number 11,861,047
- Issue date Jan 2, 2024
- CRYPTOGRAPHY RESEARCH, INC.
- Andrew John Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Erasing a cryptographic hem in a memory of a device in response to...
- Patent number 11,797,715
- Issue date Oct 24, 2023
- FORTANIX, INC.
- Andrew Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Secure feature and key management in integrated circuits
- Patent number 11,695,749
- Issue date Jul 4, 2023
- CRYPTOGRAPHY RESEARCH, INC.
- Paul Carl Kocher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Secure heartbeat monitoring
- Patent number 11,606,279
- Issue date Mar 14, 2023
- FORTANIX, INC.
- Nehal Bandi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pairing a payment object reader with a point-of-sale terminal
- Patent number 11,481,750
- Issue date Oct 25, 2022
- BLOCK, INC.
- Michael Wells White
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Physical and logical detections for fraud and tampering
- Patent number 11,443,318
- Issue date Sep 13, 2022
- BLOCK, INC.
- Max Guise
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Encrypted data key management
- Patent number 11,394,546
- Issue date Jul 19, 2022
- FORTANIX, INC.
- Andrew Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Masked gate logic for resistance to power analysis
- Patent number 11,386,236
- Issue date Jul 12, 2022
- CRYPTOGRAPHY RESEARCH, INC.
- Andrew John Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Securing data integrity for an application
- Patent number 11,244,077
- Issue date Feb 8, 2022
- FORTANIX, INC.
- Nehal Bandi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Providing attributes of a network service
- Patent number 11,095,684
- Issue date Aug 17, 2021
- FORTANIX, INC.
- Ambuj Kumar
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Server-assisted pairing for wireless communications
- Patent number 11,087,315
- Issue date Aug 10, 2021
- Square, Inc.
- Afshin Rezayee
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Issuing a certificate based on an identification of an application
- Patent number 11,057,368
- Issue date Jul 6, 2021
- FORTANIX, INC.
- Andrew Leiserson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Management of and persistent storage for nodes in a secure cluster
- Patent number 10,911,538
- Issue date Feb 2, 2021
- Fortanix, Inc.
- Ambuj Kumar
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Fraud detection in portable payment readers
- Patent number 10,878,418
- Issue date Dec 29, 2020
- Square, Inc.
- Shane Hamilton
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Erasing a cryptographic item in a memory of a device in response to...
- Patent number 10,872,175
- Issue date Dec 22, 2020
- FORTANIX, INC.
- Andrew Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Indexing of memory pages to provide secure memory access
- Patent number 10,810,136
- Issue date Oct 20, 2020
- FORTANIX, INC.
- Andrew Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Fraud detection in portable payment readers
- Patent number 10,803,461
- Issue date Oct 13, 2020
- Square, Inc.
- Shane Hamilton
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Secure feature and key management in integrated circuits
- Patent number 10,771,448
- Issue date Sep 8, 2020
- CRYPTOGRAPHY RESEARCH, INC.
- Paul Carl Kocher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Buffer access for side-channel attack resistance
- Patent number 10,747,907
- Issue date Aug 18, 2020
- Cryptography Research, Inc.
- Andrew John Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Secure key caching client
- Patent number 10,686,769
- Issue date Jun 16, 2020
- FORTANIX, INC.
- Anand Kashyap
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Secure feature and key management in integrated circuits
- Patent number 10,666,641
- Issue date May 26, 2020
- Cryptography Research, Inc.
- Paul Carl Kocher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Physical and logical detections for fraud and tampering
- Patent number 10,475,034
- Issue date Nov 12, 2019
- Square, Inc.
- Max Guise
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Energy analysis for differential power analysis resistance
- Patent number 10,387,597
- Issue date Aug 20, 2019
- Cryptography Research, Inc.
- Megan Anneke Wachs
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Masked gate logic for resistance to power analysis
- Patent number 10,311,255
- Issue date Jun 4, 2019
- Cryptography Research, Inc.
- Andrew John Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Secure feature and key management in integrated circuits
- Patent number 10,084,771
- Issue date Sep 25, 2018
- Cryptography Research, Inc.
- Paul Carl Kocher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Fraud detection in portable payment readers
- Patent number 9,940,612
- Issue date Apr 10, 2018
- Square, Inc.
- Shane Hamilton
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
SECURE FEATURE AND KEY MANAGEMENT IN INTEGRATED CIRCUITS
- Publication number 20230388290
- Publication date Nov 30, 2023
- Cryptography Research Inc.
- Paul Carl Kocher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Pairing A Payment Object Reader With A Point-Of-Sale Terminal
- Publication number 20230105132
- Publication date Apr 6, 2023
- Block, Inc.
- Michael Wells White
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MASKED GATE LOGIC FOR RESISTANCE TO POWER ANALYSIS
- Publication number 20220405428
- Publication date Dec 22, 2022
- CRYPTOGRAPHY RESEARCH, INC.
- Andrew John Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DETECTING FOR FRAUD AND TAMPERING AT A PAYMENT TERMINAL
- Publication number 20220292510
- Publication date Sep 15, 2022
- Block, Inc.
- Max Guise
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SECURE HEARTBEAT MONITORING
- Publication number 20220014456
- Publication date Jan 13, 2022
- Fortanix, Inc.
- Nehal Bandi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SECURING DATA INTEGRITY FOR AN APPLICATION
- Publication number 20210240857
- Publication date Aug 5, 2021
- Fortanix, Inc.
- Nehal Bandi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ERASING A CRYPTOGRAPHIC ITEM IN A MEMORY OF A DEVICE IN RESPONSE TO...
- Publication number 20210141942
- Publication date May 13, 2021
- Fortanix, Inc.
- Andrew Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ENCRYPTED DATA KEY MANAGEMENT
- Publication number 20210111886
- Publication date Apr 15, 2021
- Fortanix, Inc.
- Andrew Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SECURE FEATURE AND KEY MANAGEMENT IN INTEGRATED CIRCUITS
- Publication number 20210058387
- Publication date Feb 25, 2021
- Cryptography Research Inc.
- Paul Carl Kocher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
BUFFER ACCESS FOR SIDE-CHANNEL ATTACK RESISTANCE
- Publication number 20200401733
- Publication date Dec 24, 2020
- CRYPTOGRAPHY RESEARCH, INC.
- Andrew John Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
PROVIDING ATTRIBUTES OF A NETWORK SERVICE
- Publication number 20200220898
- Publication date Jul 9, 2020
- Fortanix, Inc.
- Ambuj Kumar
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ERASING A CRYPTOGRAPHIC ITEM IN A MEMORY OF A DEVICE IN RESPONSE TO...
- Publication number 20200184114
- Publication date Jun 11, 2020
- Fortanix, Inc.
- Andrew Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Physical and Logical Detections for Fraud and Tampering
- Publication number 20200065817
- Publication date Feb 27, 2020
- Square, Inc.
- Max Guise
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ISSUING A CERTIFICATE BASED ON AN IDENTIFICATION OF AN APPLICATION
- Publication number 20200028842
- Publication date Jan 23, 2020
- Fortanix, Inc.
- Andrew Leiserson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INDEXING OF MEMORY PAGES TO PROVIDE SECURE MEMORY ACCESS
- Publication number 20190377692
- Publication date Dec 12, 2019
- Fortanix, Inc.
- Andrew Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MASKED GATE LOGIC FOR RESISTANCE TO POWER ANALYSIS
- Publication number 20190362104
- Publication date Nov 28, 2019
- Cryptography Research, Inc.
- Andrew John Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SECURE FEATURE AND KEY MANAGEMENT IN INTEGRATED CIRCUITS
- Publication number 20190097999
- Publication date Mar 28, 2019
- Cryptography Research Inc.
- Paul Carl Kocher
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SECURE KEY CACHING CLIENT
- Publication number 20190044929
- Publication date Feb 7, 2019
- Fortanix, Inc.
- Anand Kashyap
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MANAGEMENT OF AND PERSISTENT STORAGE FOR NODES IN A SECURE CLUSTER
- Publication number 20180295115
- Publication date Oct 11, 2018
- Fortanix, Inc.
- Ambuj Kumar
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FRAUD DETECTION IN PORTABLE PAYMENT READERS
- Publication number 20180181939
- Publication date Jun 28, 2018
- SQUARE, INC.
- Shane Hamilton
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
FRAUD DETECTION IN PORTABLE PAYMENT READERS
- Publication number 20180096329
- Publication date Apr 5, 2018
- Square, Inc.
- Shane Hamilton
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
FRAUD DETECTION IN PORTABLE PAYMENT READERS
- Publication number 20180096330
- Publication date Apr 5, 2018
- Square, Inc.
- Shane Hamilton
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Physical and Logical Detections for Fraud and Tampering
- Publication number 20170236125
- Publication date Aug 17, 2017
- Square, Inc.
- Max Guise
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
GATE-LEVEL MASKING
- Publication number 20170154193
- Publication date Jun 1, 2017
- Cryptography Research, Inc.
- Andrew John Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SERVER-ASSISTED PAIRING FOR WIRELESS COMMUNICATIONS
- Publication number 20170091762
- Publication date Mar 30, 2017
- Square, Inc.
- Afshin Rezayee
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SERVER-ASSISTED PAIRING FOR WIRELESS COMMUNICATIONS
- Publication number 20170091732
- Publication date Mar 30, 2017
- Square, Inc.
- Afshin Rezayee
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Pairing A Payment Object Reader With A Point-Of-Sale Terminal
- Publication number 20170004475
- Publication date Jan 5, 2017
- Square, Inc.
- Michael Wells White
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
BUFFER ACCESS FOR SIDE-CHANNEL ATTACK RESISTANCE
- Publication number 20160171252
- Publication date Jun 16, 2016
- Cryptography Research, Inc.
- Andrew John Leiserson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ENERGY ANALYSIS FOR DIFFERENTIAL POWER ANALYSIS RESISTANCE
- Publication number 20160140274
- Publication date May 19, 2016
- Cryptography Research, Inc.
- Megan Anneke WACHS
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SIGNAL TRANSITION ANALYSIS OF A CIRCUIT
- Publication number 20160133341
- Publication date May 12, 2016
- Cryptography Research, Inc.
- Andrew John LEISERSON
- G01 - MEASURING TESTING

Andrew John Leiserson

Person

Patents Grantslast 30 patents

Server-assisted pairing for wireless communications

Secure feature and key management in integrated circuits

Detecting for fraud and tampering at a payment terminal

Buffer access for side-channel attack resistance

Masked gate logic for resistance to power analysis

Erasing a cryptographic hem in a memory of a device in response to...

Secure feature and key management in integrated circuits

Secure heartbeat monitoring

Pairing a payment object reader with a point-of-sale terminal

Physical and logical detections for fraud and tampering

Encrypted data key management

Masked gate logic for resistance to power analysis

Securing data integrity for an application

Providing attributes of a network service

Server-assisted pairing for wireless communications

Issuing a certificate based on an identification of an application

Management of and persistent storage for nodes in a secure cluster

Fraud detection in portable payment readers

Erasing a cryptographic item in a memory of a device in response to...

Indexing of memory pages to provide secure memory access

Fraud detection in portable payment readers

Secure feature and key management in integrated circuits

Buffer access for side-channel attack resistance

Secure key caching client

Secure feature and key management in integrated circuits

Physical and logical detections for fraud and tampering

Energy analysis for differential power analysis resistance

Masked gate logic for resistance to power analysis

Secure feature and key management in integrated circuits

Fraud detection in portable payment readers

Patents Applicationslast 30 patents

SECURE FEATURE AND KEY MANAGEMENT IN INTEGRATED CIRCUITS

Pairing A Payment Object Reader With A Point-Of-Sale Terminal

MASKED GATE LOGIC FOR RESISTANCE TO POWER ANALYSIS

DETECTING FOR FRAUD AND TAMPERING AT A PAYMENT TERMINAL

SECURE HEARTBEAT MONITORING

SECURING DATA INTEGRITY FOR AN APPLICATION

ERASING A CRYPTOGRAPHIC ITEM IN A MEMORY OF A DEVICE IN RESPONSE TO...

ENCRYPTED DATA KEY MANAGEMENT

SECURE FEATURE AND KEY MANAGEMENT IN INTEGRATED CIRCUITS

BUFFER ACCESS FOR SIDE-CHANNEL ATTACK RESISTANCE

PROVIDING ATTRIBUTES OF A NETWORK SERVICE

ERASING A CRYPTOGRAPHIC ITEM IN A MEMORY OF A DEVICE IN RESPONSE TO...

Physical and Logical Detections for Fraud and Tampering

ISSUING A CERTIFICATE BASED ON AN IDENTIFICATION OF AN APPLICATION

INDEXING OF MEMORY PAGES TO PROVIDE SECURE MEMORY ACCESS

MASKED GATE LOGIC FOR RESISTANCE TO POWER ANALYSIS

SECURE FEATURE AND KEY MANAGEMENT IN INTEGRATED CIRCUITS

SECURE KEY CACHING CLIENT

MANAGEMENT OF AND PERSISTENT STORAGE FOR NODES IN A SECURE CLUSTER

FRAUD DETECTION IN PORTABLE PAYMENT READERS

FRAUD DETECTION IN PORTABLE PAYMENT READERS

FRAUD DETECTION IN PORTABLE PAYMENT READERS

Physical and Logical Detections for Fraud and Tampering

GATE-LEVEL MASKING

SERVER-ASSISTED PAIRING FOR WIRELESS COMMUNICATIONS

SERVER-ASSISTED PAIRING FOR WIRELESS COMMUNICATIONS

Pairing A Payment Object Reader With A Point-Of-Sale Terminal

BUFFER ACCESS FOR SIDE-CHANNEL ATTACK RESISTANCE

ENERGY ANALYSIS FOR DIFFERENTIAL POWER ANALYSIS RESISTANCE

SIGNAL TRANSITION ANALYSIS OF A CIRCUIT