A method of encoded communication in which a receiver generates a receiver public key by looking up a monitoring authority public key, multiplying four prime numbers, and encoding the identities of two of the prime numbers with the monitoring authority public key. The receiver communicates the public...http://www.google.fr/patents/US5974151?utm_source=gb-gplus-shareBrevet US5974151 - Public key cryptographic system having differential security levels
Public key cryptographic system having differential security levels
