ENCRYPTION PROCESSOR, SECRET CODE PROCESSING SYSTEM, SECRET CODE PROCESSING SOFTWARE, SECRET CODE PROCESSING SOFTWARE SYSTEM, SECRET CODE PROCESSING METHOD, ENCRYPTION DEVICE, ENCRYPTION SYSTEM, ENCRYPTION SOFTWARE, ENCRYPTION SOFTWARE SYSTEM, ENCRYPTION METHOD, DECRYPTION DEVICE, DECRYPTION SYSTEM, DECRYPTION SOFTWARE, DECRYPTION SOFTWARE SYSTEM AND DECRYPTION METHOD

摘要

PROBLEM TO BE SOLVED: To respond to a request for an encryption technology to promptly perform a robust processing. SOLUTION: A random number message is preliminarily created and distributed to both parties to perform encryption communication by using common key encryption and public key encryption. Next, the random number message is made into a key and a communication message is transmitted/received by using a one-time pad. This invention includes an encryption processing method, etc., such as 1 to 5. 1. The random number message is created. 2. The random number message in 1 is encrypted by a certain secret code. 3. The random number message in 2 is decrypted by a certain secret code 4. The communication message is encrypted by using the random number message in 1 as the key by the one-time pad. 5. The communication message in 4 is decrypted by using the random number message in 3 as the key by the one-time pad. The encryption processing method is characterized in that, by using two certain arithmetic units, one of the units performs operations such as in 1, 2, 4 and the other performs operations such as in 4 and 5. COPYRIGHT: (C)2004,JPO