Patent ID: 7502472

Claim:
An encryption system for encrypting and decrypting sensitive data during a data interchange between a plurality of electronic appliances communicating with one another, comprising: a data stream module for providing a synchronous data stream as raw material for key generation, said data stream module generating the synchronous data stream by mixing, according to an agreed algorithm, a plurality of continuous multimedia data streams obtained from digital data stream suppliers which exist on the Internet; a data module for preparing the sensitive data for the encryption/decryption; a key generator to which an agreed information portion of the synchronous data stream from the data stream module is supplied; an encryption/decryption unit which is connected to said data module and said key generator said encryption/decryption unit utilizing a keyword to encrypt/decrypt the sensitive data; and an output unit for forwarding the encrypted/decrypted sensitive data to a user or application; wherein the key generator, based on the supplied synchronous data stream, generates a respective keyword for each message which is to be encrypted/decrypted simultaneously on each of said plural appliances communicating with one another.