Personal identification encryptor system with error-correcting code and method
US4885779A · kind A · utility
8Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1987 |
| Grant date | Dec 5, 1989 |
| Priority date | — |
| Expiry date | Nov 2, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F7/10
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An inexpensive encryption device, system and method includes coded alphanumeric characters preprinted according to different key codes on mail-out forms that can be manipulated by a prospective user to yield encrypted data that can be returned over unsecure transmission channels for secure decryption by the operator of a computer-secured operating system. Error-correcting encoding is included to obviate the effects upon telephone keypad entry of secured data that includes error-prone alpha and numeric characters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.