Don Coppersmith

Person

Ossining, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Efficient stream cipher system and method
- Patent number 7,236,592
- Issue date Jun 26, 2007
- International Business Machines Corporation
- Don Coppersmith
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Secured signal modification and verification with privacy control
- Patent number 7,100,050
- Issue date Aug 29, 2006
- International Business Machines Corporation
- Don Coppersmith
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System for protection of goods against counterfeiting
- Patent number 6,996,543
- Issue date Feb 7, 2006
- International Business Machines Corporation
- Don Coppersmith
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for cryptographically transforming an input bl...
- Patent number 6,301,362
- Issue date Oct 9, 2001
- International Business Machines Corporation
- Stephen M. Matyas
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Secured signal modification and verification with privacy control
- Patent number 6,256,736
- Issue date Jul 3, 2001
- International Business Machines Corporation
- Don Coppersmith
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for advanced symmetric key block cipher with v...
- Patent number 6,243,470
- Issue date Jun 5, 2001
- International Business Machines Corporation
- Don Coppersmith
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for advanced byte-oriented symmetric key block...
- Patent number 6,192,129
- Issue date Feb 20, 2001
- International Business Machines Corporation
- Don Coppersmith
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Symmetric block cipher using multiple stages with modified type-1 a...
- Patent number 6,189,095
- Issue date Feb 13, 2001
- International Business Machines Corporation
- Don Coppersmith
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for a symmetric block cipher using multiple st...
- Patent number 6,185,679
- Issue date Feb 6, 2001
- International Business Machines Corporation
- Don Coppersmith
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for a symmetric block cipher using multiple st...
- Patent number 6,185,304
- Issue date Feb 6, 2001
- International Business Machines Corporation
- Don Coppersmith
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for finding a best test for a nominal attribute for generati...
- Patent number 6,101,275
- Issue date Aug 8, 2000
- International Business Machines Corporation
- Don Coppersmith
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System for protection of goods against counterfeiting
- Patent number 6,069,955
- Issue date May 30, 2000
- International Business Machines Corporation
- Don Coppersmith
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Software-efficient pseudorandom function and the use thereof for de...
- Patent number 5,835,597
- Issue date Nov 10, 1998
- International Business Machines Corporation
- Don Coppersmith
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System and method for near-field human-body coupling for encrypted...
- Patent number 5,796,827
- Issue date Aug 18, 1998
- International Business Machines Corporation
- Don Coppersmith
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Cryptographic system with masking
- Patent number 5,768,390
- Issue date Jun 16, 1998
- International Business Machines Corporation
- Don Coppersmith
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Computer readable device implementing a software-efficient pseudora...
- Patent number 5,675,652
- Issue date Oct 7, 1997
- International Business Machines Corporation
- Don Coppersmith
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Authentication system using one-time passwords
- Patent number 5,661,807
- Issue date Aug 26, 1997
- International Business Machines Corporation
- Richard Henry Guski
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Authentication system using one-time passwords
- Patent number 5,592,553
- Issue date Jan 7, 1997
- International Business Machines Corporation
- Richard H. Guski
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Software-efficient pseudorandom function and the use thereof for en...
- Patent number 5,454,039
- Issue date Sep 26, 1995
- International Business Machines Corporation
- Don Coppersmith
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data authentication using modification detection codes based on a p...
- Patent number 4,908,861
- Issue date Mar 13, 1990
- International Business Machines Corporation
- Bruno O. Brachtl
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Run-length limited code without DC level
- Patent number 4,675,650
- Issue date Jun 23, 1987
- IBM Corporation
- Don Coppersmith
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Error correcting scheme
- Patent number 4,564,944
- Issue date Jan 14, 1986
- International Business Machines Corporation
- Richard F. Arnold
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Efficient stream cipher system and method
- Publication number 20030152219
- Publication date Aug 14, 2003
- Don Coppersmith
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Don Coppersmith

Person

Patents Grantslast 30 patents

Efficient stream cipher system and method

Secured signal modification and verification with privacy control

System for protection of goods against counterfeiting

Method and apparatus for cryptographically transforming an input bl...

Secured signal modification and verification with privacy control

Method and apparatus for advanced symmetric key block cipher with v...

Method and apparatus for advanced byte-oriented symmetric key block...

Symmetric block cipher using multiple stages with modified type-1 a...

Method and apparatus for a symmetric block cipher using multiple st...

Method and apparatus for a symmetric block cipher using multiple st...

Method for finding a best test for a nominal attribute for generati...

System for protection of goods against counterfeiting

Software-efficient pseudorandom function and the use thereof for de...

System and method for near-field human-body coupling for encrypted...

Cryptographic system with masking

Computer readable device implementing a software-efficient pseudora...

Authentication system using one-time passwords

Authentication system using one-time passwords

Software-efficient pseudorandom function and the use thereof for en...

Data authentication using modification detection codes based on a p...

Run-length limited code without DC level

Error correcting scheme

Patents Applicationslast 30 patents

Efficient stream cipher system and method