Carl H. W. Meyer

Person

Kingston, NY, US

People

Patents Grantslast 30 patents

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
Controlled use of cryptographic keys via generating station establi...
- Patent number 4,850,017
- Issue date Jul 18, 1989
- International Business Machines Corp.
- Stephen M. Matyas
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transaction security system
- Patent number 4,755,940
- Issue date Jul 5, 1988
- International Business Machines Corporation
- Bruno Brachtl
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Transaction security system using time variant parameter
- Patent number 4,747,050
- Issue date May 24, 1988
- International Business Machines Corporation
- Bruno Brachtl
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cryptographic application for interbank verification
- Patent number 4,500,750
- Issue date Feb 19, 1985
- International Business Machines Corporation
- Robert C. Elander
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus incorporating a one-way sequence for transacti...
- Patent number 4,393,269
- Issue date Jul 12, 1983
- International Business Machines Corporation
- Alan G. Konheim
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cryptographic communication and file security using terminals
- Patent number 4,386,234
- Issue date May 31, 1983
- International Business Machines Corp.
- William F. Ehrsam
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cryptographic file security for single domain networks
- Patent number 4,238,854
- Issue date Dec 9, 1980
- International Business Machines Corporation
- William F. Ehrsam
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cryptographic communication security for single domain networks
- Patent number 4,238,853
- Issue date Dec 9, 1980
- International Business Machines Corporation
- William F. Ehrsam
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for enciphering blocks which succeed short blo...
- Patent number 4,229,818
- Issue date Oct 21, 1980
- International Business Machines Corporation
- Stephen M. Matyas
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cryptographic communication security for multiple domain networks
- Patent number 4,227,253
- Issue date Oct 7, 1980
- International Business Machines Corporation
- William F. Ehrsam
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for authenticating the identity of a user of an information...
- Patent number 4,218,738
- Issue date Aug 19, 1980
- International Business Machines Corporation
- Stephen M. Matyas
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital signature system and apparatus
- Patent number 4,206,315
- Issue date Jun 3, 1980
- International Business Machines Corporation
- Stephen M. Matyas
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cryptographic file security for multiple domain networks
- Patent number 4,203,166
- Issue date May 13, 1980
- International Business Machines Corporation
- William F. Ehrsam
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cryptographic verification of operational keys used in communicatio...
- Patent number 4,193,131
- Issue date Mar 11, 1980
- International Business Machines Corporation
- Richard E. Lennon
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Message verification and transmission error detection by block chai...
- Patent number 4,074,066
- Issue date Feb 14, 1978
- International Business Machines Corporation
- William F. Ehrsam
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Product block cipher system for data security
- Patent number 3,962,539
- Issue date Jun 8, 1976
- International Business Machines Corporation
- William Friedrich Ehrsam
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Block cipher system for data security
- Patent number 3,958,081
- Issue date May 18, 1976
- International Business Machines Corporation
- William Friedrich Ehrsam
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Carl H. W. Meyer

Person

Patents Grantslast 30 patents

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

Controlled use of cryptographic keys via generating station establi...

Transaction security system

Transaction security system using time variant parameter

Cryptographic application for interbank verification

Method and apparatus incorporating a one-way sequence for transacti...

Cryptographic communication and file security using terminals

Cryptographic file security for single domain networks

Cryptographic communication security for single domain networks

Method and apparatus for enciphering blocks which succeed short blo...

Cryptographic communication security for multiple domain networks

Method for authenticating the identity of a user of an information...

Digital signature system and apparatus

Cryptographic file security for multiple domain networks

Cryptographic verification of operational keys used in communicatio...

Message verification and transmission error detection by block chai...

Product block cipher system for data security

Block cipher system for data security