Data communication system and method with a data scrambling with high security. A data scrambling part is provided with a extended key memory for storing addresses of extended keys, and one of the extended keys is used as a parameter for scrambling an input data to be scrambled. In order to select one...http://www.google.fr/patents/US5261003?utm_source=gb-gplus-shareBrevet US5261003 - Data communication system and method with data scrambling
Data communication system and method with data scrambling