Inventor
MATYAS JR STEPHEN MICHAEL
US22 patents
Patents
22 patentsUS7010689B1Mar 7, 2006
Secure data storage and retrieval in a client-server environment
IBM285 citations99
US6947556B1Sep 20, 2005
Secure data storage and retrieval with key management and user authentication
IBM426 citations99
US6697947B1Feb 24, 2004
Biometric based multi-party authentication
IBM357 citations99
US6687375B1Feb 3, 2004
Generating user-dependent keys and random numbers
IBM225 citations99
US6507912B1Jan 14, 2003
Protection of biometric data via key-dependent sampling
IBM186 citations99
US5937066AAug 10, 1999
Two-phase cryptographic key recovery system
IBM464 citations99
US5907618AMay 25, 1999
Method and apparatus for verifiably providing key recovery information in a cryptographic system
IBM191 citations99
US7051211B1May 23, 2006
Secure software distribution and installation
IBM96 citations98
US6363154B1Mar 26, 2002
Decentralized systems methods and computer program products for sending secure messages among a group of nodes
IBM137 citations98
US6052469AApr 18, 2000
Interoperable cryptographic key recovery system with verification by comparison
IBM125 citations98
US5953420ASep 14, 1999
Method and apparatus for establishing an authenticated shared secret value between a pair of users
IBM202 citations98
US5912974AJun 15, 1999
Apparatus and method for authentication of printed documents
IBM334 citations98
US5796830AAug 18, 1998
Interoperable cryptographic key recovery system
IBM139 citations98
US6940976B1Sep 6, 2005
Generating user-dependent RSA keys
IBM53 citations96
US5870470AFeb 9, 1999
Method and apparatus for encrypting long blocks using a short-block encryption procedure
IBM88 citations96
US5768390AJun 16, 1998
Cryptographic system with masking
IBM60 citations96
US5661807AAug 26, 1997
Authentication system using one-time passwords
IBM223 citations96
US5815573ASep 29, 1998
Cryptographic key recovery system
IBM89 citations95
US6560337B1May 6, 2003
Systems, methods and computer program products for reducing effective key length of ciphers using one-way cryptographic functions and an initial key
IBM32 citations93
US5987124ANov 16, 1999
Method and apparatus for encrypting long blocks using a short-block encryption procedure
IBM35 citations92
US7519178B1Apr 14, 2009
Method, system and apparatus for ensuring a uniform distribution in key generation
IBM17 citations84
US6928163B1Aug 9, 2005
Methods, systems and computer program products for generating user-dependent RSA values without storing seeds
IBM20 citations84