Block encryption
US8767959B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2011 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Mar 20, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0869
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems for encrypting and decrypting data are described. In one embodiment, a computing system determines a first initialization vector (IV) from another IV and a sequence number of a block of information, and hashes the first IV to create a hash. The computing system then determines a first block from the first block of information and the first hash and enciphers the first block to generate a block of ciphertext. In another embodiment, the computing system deciphers the block of ciphertext to generate the first block, and determines the first IV from the other IV and a sequence number of a block of information. The computing system hashes the first IV to create a hash and determines a block of information corresponding to the first block of ciphertext from the first block and the hash.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.