Assignee
CERTCO INC
US9 patents
Top patents by PatentIndex Score
US6411716B1Jun 25, 2002
Method of changing key fragments in a multi-step digital signature system
CERTCO INC141 citations98
US6035041AMar 7, 2000
Optimal-resilience, proactive, public-key cryptographic system and method
CERTCO INC99 citations98
US6209091B1Mar 27, 2001
Multi-step digital signature method and system
CERTCO INC263 citations97
US6353812B2Mar 5, 2002
Computer-based method and system for aiding transactions
CERTCO INC50 citations95
US6237097B1May 22, 2001
Robust efficient distributed RSA-key generation
CERTCO INC35 citations92
US7177839B1Feb 13, 2007
Reliance manager for electronic transaction system
CERTCO INC139 citations91
US7184988B1Feb 27, 2007
Methods for operating infrastructure and applications for cryptographically-supported services
CERTCO INC36 citations88
US7610614B1Oct 27, 2009
Cryptographic control and maintenance of organizational structure and functions
CERTCO INC11 citations82
US7343346B2Mar 11, 2008
Computer-based method and system for aiding transactions
CERTCO INC6 citations72