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Class Information
Number: 705/75
Name: Data processing: financial, business practice, management, or cost/price determination > Business processing using cryptography > Secure transaction (e.g., eft/pos) > Transaction verification
Description: Subject matter wherein the details of a transaction are cryptographically processed to allow subsequent confirmation thereof.










Patents under this class:
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Patent Number Title Of Patent Date Issued
5457305 Distributed on-line money access card transaction processing system Oct. 10, 1995
5440634 Value transfer system Aug. 8, 1995
5432506 Counterfeit document detection system Jul. 11, 1995
5396558 Method and apparatus for settlement of accounts by IC cards Mar. 7, 1995
5377268 Metering system with remotely resettable time lockout Dec. 27, 1994
5371797 Secure electronic funds transfer from telephone or unsecured terminal Dec. 6, 1994
5343529 Transaction authentication using a centrally generated transaction identifier Aug. 30, 1994
5341428 Multiple cross-check document verification system Aug. 23, 1994
5337358 Apparatus for recording a transaction including authenticating an identification card Aug. 9, 1994
5319710 Method and means for combining and managing personal verification and message authentication encrytions for network transmission Jun. 7, 1994
5297202 Apparatus and method for producing a digitized transaction record including an encrypted signature Mar. 22, 1994
5283829 System and method for paying bills electronically Feb. 1, 1994
5267314 Secure transaction system and method utilized therein Nov. 30, 1993
5259025 Method of verifying fake-proof video identification data Nov. 2, 1993
5256863 In-store universal control system Oct. 26, 1993
5245657 Verification method and apparatus Sep. 14, 1993
5231666 Cryptographic method for updating financial records Jul. 27, 1993
5195133 Apparatus and method for producing a digitized transaction record including an encrypted signature Mar. 16, 1993
5191613 Knowledge based system for document authentication Mar. 2, 1993
5163098 System for preventing fraudulent use of credit card Nov. 10, 1992
5097504 Method and device for qualitative saving of digitized data Mar. 17, 1992
5018196 Method for electronic transaction with digital signature May. 21, 1991
4962531 Transaction system comprising one or more host exchanges and a number of distributed terminal stations Oct. 9, 1990
4926478 Method and apparatus for continuously acknowledged link encrypting May. 15, 1990
4885777 Electronic transaction system Dec. 5, 1989
4862501 Communications network using IC cards Aug. 29, 1989
4816655 Method and apparatus for checking the authenticity of individual-linked documents and the identity of the holders thereof Mar. 28, 1989
4796297 Device for calculating a charge for a charged information signal with errors avoided in a report of the charge Jan. 3, 1989
4771460 Data processing terminal device which stores a modified decrypted data in a programmable read only memory in order to detect alteration thereof Sep. 13, 1988
4757543 Encrypting and decrypting device which stores an algorithm in a memory Jul. 12, 1988
4755940 Transaction security system Jul. 5, 1988
4748557 Data processing terminal device for storing encrypted journal data and decrypting the data May. 31, 1988
4745267 Fraudulent card intercept system May. 17, 1988
4578530 End-to-end encryption system and method of operation Mar. 25, 1986
4423287 End-to-end encryption system and method of operation Dec. 27, 1983
4393269 Method and apparatus incorporating a one-way sequence for transaction and identity verification Jul. 12, 1983
4326098 High security system for electronic signature verification Apr. 20, 1982
4315101 Method and apparatus for securing data transmissions Feb. 9, 1982
4302810 Method and apparatus for secure message transmission for use in electronic funds transfer systems Nov. 24, 1981
4283599 Method and apparatus for securing data transmissions Aug. 11, 1981
4268715 Method and apparatus for securing data transmissions May. 19, 1981
4264782 Method and apparatus for transaction and identity verification Apr. 28, 1981
3990558 Method and apparatus for preparing and assessing payment documents Nov. 9, 1976

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