Method and apparatus for securing data transmissions
US4268715A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 1979 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Jan 16, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are provided for improving the security of data transmissions between stations and for controlling secured transactions from remote locations in a data-transfer system. The method and apparatus obviate the need for transmitting user-identification information such as personal identification number (PIN) from station to station, e.g., from the station utilized by the user to enter his PIN and initiate a transaction, to the station that processes the transaction. Also, for added security, the method and apparatus provide for encryption (encoding) and decryption (decoding) of data during a transaction using encryption and decryption keys produced from different (independent) PINs. The apparatus includes at least one irreversible algorithm module, a random number generator and at least one data file (e.g., disc or magnetic tape storage). The apparatus also includes a comparator or, alternatively, an encoding algorithm module and a matching decoding algorithm module. In addition, a data-transfer system obviates the need for paired encryption/decryption modules on a data link while nevertheless maintaining a high level of security in the data transferred. This faci…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.