Inventor
MEYER CARL H W
13 patents
Patents
13 patentsUS4218738AAug 19, 1980
Method for authenticating the identity of a user of an information system
IBM241 citations99
US4850017AJul 18, 1989
Controlled use of cryptographic keys via generating station established control values
IBM194 citations97
US4203166AMay 13, 1980
Cryptographic file security for multiple domain networks
IBM264 citations97
US4193131AMar 11, 1980
Cryptographic verification of operational keys used in communication networks
IBM176 citations97
US4227253AOct 7, 1980
Cryptographic communication security for multiple domain networks
IBM183 citations96
US4500750AFeb 19, 1985
Cryptographic application for interbank verification
IBM110 citations95
US4386234AMay 31, 1983
Cryptographic communication and file security using terminals
IBM84 citations95
US3962539AJun 8, 1976
Product block cipher system for data security
IBM423 citations95
US4908861AMar 13, 1990
Data authentication using modification detection codes based on a public one way encryption function
IBM148 citations94
US3958081AMay 18, 1976
Block cipher system for data security
IBM266 citations94
US4074066AFeb 14, 1978
Message verification and transmission error detection by block chaining
IBM63 citations93
US4206315AJun 3, 1980
Digital signature system and apparatus
IBM54 citations92
US4229818AOct 21, 1980
Method and apparatus for enciphering blocks which succeed short blocks in a key-controlled block-cipher cryptographic system
IBM36 citations90