Process for generating a check word for a bit sequence for verifying the integrity and authenticity of the bit sequence
US6044488A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1997 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Dec 16, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3236
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The method is intended for the generation of a check word for a bit string to check the integrity and authenticity of the bit string, the bit string comprising at least one data set consisting of a plurality of data words, each having the same word length defined by a number of bits. Here, a random number is generated for each data word, the number having the same number of bits as the data words. Further, first and second operand pairs are generated, each consisting of a data word and a random number. The data word and the random number of each first operand pair are subjected to a first linking operation, while the data word and the random number of each second operand pair is subjected to a second linking operation. The results of all operations applied to the first and second operand pairs are linked, the result of this linking being the check word of this data set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.