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Secure communication system having long-term keying variable
Secure communication system having long-term keying variable
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机译:具有长期密钥可变性的安全通信系统
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摘要
A secure communication apparatus incorporates a longterm, non- extractable master key variable which is held in common by all terminals. A pseudorandom bit sequence generator within the transmitter provides a binary bit stream which is transmitted unencrypted to the intended receiver. Both terminals simultaneously mix the master variable with the transmitted pseudorandom bit stream in an identical manner to create a common separate working variable which is subsequently used for data encryption and decryption.
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