Meyer; Carl H. W.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Meyer; Carl H. W..The latest application filed is for "data authentication using modification detection codes based on a public one way encryption function".

Company Profile

0.15.0

Meyer; Carl H. W. - Kingston NY

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Data authentication using modification detection codes based on a public one way encryption function Grant 4,908,861 - Brachtl , et al. March 13, 1	1990-03-13
Controlled use of cryptographic keys via generating station established control values Grant 4,850,017 - Matyas, Jr. , et al. July 18, 1	1989-07-18
Cryptographic application for interbank verification Grant 4,500,750 - Elander , et al. February 19, 1	1985-02-19
Cryptographic communication and file security using terminals Grant 4,386,234 - Ehrsam , et al. May 31, 1	1983-05-31
Cryptographic communication security for single domain networks Grant 4,238,853 - Ehrsam , et al. December 9, 1	1980-12-09
Cryptographic file security for single domain networks Grant 4,238,854 - Ehrsam , et al. December 9, 1	1980-12-09
Method and apparatus for enciphering blocks which succeed short blocks in a key-controlled block-cipher cryptographic system Grant 4,229,818 - Matyas , et al. October 21, 1	1980-10-21
Cryptographic communication security for multiple domain networks Grant 4,227,253 - Ehrsam , et al. October 7, 1	1980-10-07
Method for authenticating the identity of a user of an information system Grant 4,218,738 - Matyas , et al. August 19, 1	1980-08-19
Digital signature system and apparatus Grant 4,206,315 - Matyas , et al. June 3, 1	1980-06-03
Cryptographic file security for multiple domain networks Grant 4,203,166 - Ehrsam , et al. May 13, 1	1980-05-13
Cryptographic verification of operational keys used in communication networks Grant 4,193,131 - Lennon , et al. March 11, 1	1980-03-11
Message verification and transmission error detection by block chaining Grant 4,074,066 - Ehrsam , et al. February 14, 1	1978-02-14
Product block cipher system for data security Grant 3,962,539 - Ehrsam , et al. June 8, 1	1976-06-08
Block cipher system for data security Grant 3,958,081 - Ehrsam , et al. May 18, 1	1976-05-18

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