1. Data cryptographic techniques. Data integrity mechanism using a cryptographic check function employing a block cipher algorithm. (31st October 1990) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (9 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Digital data transmission. Basic mode control procedures. Code independent information transfer Part 4, (29th March 1971) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗