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Class Information
Number: 705/71
Name: Data processing: financial, business practice, management, or cost/price determination > Business processing using cryptography > Secure transaction (e.g., eft/pos) > Including key management
Description: Subject matter including supervision or control of a signal necessary for encryption or decryption.










Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
6163612 Coding device, decoding device and IC circuit Dec. 19, 2000
6128391 Method and apparatus for asymetric key management in a cryptographic system Oct. 3, 2000
6125185 System and method for encryption key generation Sep. 26, 2000
6078888 Cryptography security for remote dispenser transactions Jun. 20, 2000
6076078 Anonymous certified delivery Jun. 13, 2000
6073237 Tamper resistant method and apparatus Jun. 6, 2000
6026163 Distributed split-key cryptosystem and applications Feb. 15, 2000
6023689 Method for secure communication in a telecommunications system Feb. 8, 2000
5999629 Data encryption security module Dec. 7, 1999
5991399 Method for securely distributing a conditional use private key to a trusted entity on a remote system Nov. 23, 1999
5982892 System and method for remote authorization for unlocking electronic data Nov. 9, 1999
5915021 Method for secure communications in a telecommunications system Jun. 22, 1999
5892824 Signature capture/verification systems and methods Apr. 6, 1999
5889860 Encryption system with transaction coded decryption key Mar. 30, 1999
5857023 Space efficient method of redeeming electronic payments Jan. 5, 1999
5778067 Value transfer system Jul. 7, 1998
5761306 Key replacement in a public key cryptosystem Jun. 2, 1998
5745576 Method and apparatus for initialization of cryptographic terminal Apr. 28, 1998
5729609 Method for producing a common key in two devices, in order to implement a common cryptographic procedure, and associated apparatus Mar. 17, 1998
5706347 Method and system for authenticating a computer network node Jan. 6, 1998
5703949 Method for establishing secure communications among processing devices Dec. 30, 1997
5694471 Counterfeit-proof identification card Dec. 2, 1997
5682428 Personal access management system Oct. 28, 1997
5680456 Method of manufacturing generic meters in a key management system Oct. 21, 1997
5534857 Method and system for secure, decentralized personalization of smart cards Jul. 9, 1996
5446796 Method and apparatus for settlement of accounts by IC cards Aug. 29, 1995
5428684 Electronic cashless transaction system Jun. 27, 1995
5381478 Cipher communication system for transaction data Jan. 10, 1995
5351296 Financial transmission system Sep. 27, 1994
5228084 Security apparatus and system for retail environments Jul. 13, 1993
5175766 Signalling scheme for controlling data encryption device in an electronic fund transaction processing system Dec. 29, 1992
5014312 Security system for the protection of programming zones of a chip card May. 7, 1991
4985920 Integrated circuit card Jan. 15, 1991
4984270 Method and system for transmission of financial data Jan. 8, 1991
4972472 Method and apparatus for changing the master key in a cryptographic system Nov. 20, 1990
4961142 Multi-issuer transaction device with individual identification verification plug-in application modules for each issuer Oct. 2, 1990
4933971 Method for encrypting transmitted data using a unique key Jun. 12, 1990
4924514 Personal identification number processing using control vectors May. 8, 1990
4912762 Management of cryptographic keys Mar. 27, 1990
4885788 IC card Dec. 5, 1989
4797920 Electronic funds transfer system with means for verifying a personal identification number without pre-established secret keys Jan. 10, 1989
4747050 Transaction security system using time variant parameter May. 24, 1988
4731842 Security module for an electronic funds transfer system Mar. 15, 1988
4633037 Generation of identification keys Dec. 30, 1986
4605820 Key management system for on-line communication Aug. 12, 1986
4578530 End-to-end encryption system and method of operation Mar. 25, 1986
4536647 Pocket banking terminal, method and system Aug. 20, 1985
4500750 Cryptographic application for interbank verification Feb. 19, 1985
4423287 End-to-end encryption system and method of operation Dec. 27, 1983
4408203 Security system for electronic funds transfer system Oct. 4, 1983

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