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Your search returned 133 patents.
( 380/284 in Current US Classification )
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Patent IDTitleDate Filed
6912285 Mechanism for efficient private bulk messaging February 26, 2001
6891953 Method and system for binding enhanced software features to a persona June 27, 2000
6854061 Installing and controlling trial software October 15, 2002
6854059 Method and apparatus for medium access control in powerline communication network systems June 6, 2001
6845160 Apparatus and method for depositing encryption keys October 14, 1999
6834111 DATA TRANSMITTING/RECEIVING METHOD, DATA TRANSMITTER, DATA RECEIVER, DATA TRANSMITTING/RECEIVING SYSTEM, AV CONTENT TRANSMITTING METHOD, AV CONTENT RECEIVING METHOD, AV CONTENT TRANSMITTER, AV CONTENT RECEIVER, AND PROGRAM RECORDING MEDIUM December 1, 1999
6816970 Security method and system for persistent storage and communications on computer network systems and computer network systems employing the same January 12, 2001
6801999 Passive and active software objects containing bore resistant watermarking May 20, 1999
6795555 Encryption key exchange protocol December 30, 1999
6792545 Enterprise computer investigation system June 20, 2002
6792113 Adaptable security mechanism for preventing unauthorized access of digital data December 20, 1999
6785390 System and method for asynchronous decryption May 16, 2000
6775773 Protectedly reading out an enciphered, cryptographic key June 12, 2000
6738907 Maintaining a soft-token private key store in a distributed environment April 13, 1998
6728878 Deferred billing, broadcast, electronic document distribution system and method August 6, 2001
6728379 Information processor and information processing method June 28, 1999
6718467 Password based protocol for secure communications October 28, 1999
6711680 Method of limiting key usage in a postage metering system that produces cryptographically secured indicium December 9, 1999
6690795 Multiple keys for decrypting data in restricted-access television system March 4, 1997
6683954 Key encryption using a client-unique additional key for fraud prevention October 23, 1999
6530020 Group oriented public key encryption and key management system June 18, 1998
6529603 Method and apparatus to reduce the risk of observation of a secret value used by an instruction sequence April 23, 1999
6490685 Storage device having testing function and memory testing method December 4, 1998
6457126 Storage device, an encrypting/decrypting device and method of accessing a non-volatile memory July 20, 2000
6449473 Security method for transmissions in telecommunication networks March 9, 2000
6424714 Method and apparatus for providing conditional access in connection-oriented interactive networks with a multiplicity of service providers August 18, 1998
6418224 Methods and apparatus for self-inverting multiple-iteration CMEA crypto-processing for improved security for wireless telephone messages May 5, 1998
6408389 System for supporting secured log-in of multiple users into a plurality of computers using combined presentation of memorized password and transportable passport record December 5, 2000
6393128 System for broadcasting data signals in a secure manner August 31, 1999
6393127 Method for transferring an encryption key March 2, 1998
6377692 Method and system for controlling key for electronic signature March 11, 1999
6370250 Method of authentication and storage of private keys in a public key cryptography system (PKCS) October 29, 1998
6347145 Method and apparatus of enciphering and deciphering data using keys enciphered and deciphered with other keys June 26, 1997
6339828 System for supporting secured log-in of multiple users into a plurality of computers using combined presentation of memorized password and transportable passport record May 3, 2000
6337911 Deferred billing, broadcast, electronic document distribution system and method March 9, 1998
6332025 Software distribution system and software utilization scheme for improving security and user convenience December 18, 2000
6292899 Volatile key apparatus for safeguarding confidential data stored in a computer system memory September 23, 1998
6272225 Key recovery condition encryption and decryption apparatuses July 7, 1998
6263437 Method and apparatus for conducting crypto-ignition processes between thin client devices and server devices over data networks February 19, 1998
6240188 Distributed group key management scheme for secure many-to-many communication November 11, 1999
6222923 Method for securing system protected by a key hierarchy December 15, 1997
6209098 Circuit and method for ensuring interconnect security with a multi-chip integrated circuit package September 21, 1998
6195432 Software distribution system and software utilization scheme for improving security and user convenience March 10, 1997
6192132 Short term internet access June 26, 1998
6169805 System and method of operation for providing user's security on-demand over insecure networks February 28, 1997
6108424 Mobile radio telephone station comprising a protection system for at least one authentication number and method of protecting an authentication number January 5, 1998
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