| 摘要 |
PURPOSE: To enable a person, who receives a signed message together with a certificate issued by a class system, to confirm that the authority represented by a signer exactly bears the responsibility by intensifying limits and responsibilities of classes. CONSTITUTION: After generating an ordinary text or an un-ciphered message and performing the required signature operation, each terminal transmits the message to another terminal connected to a communication channel 12. Each terminal can verify the signature of each message. Each terminal user has a public key for encryption and a private secret key for decryption related to this public key. However, he confide his encryption procedures and encryption key but doesn't decode ciphered messages neither confide the private key for decryption required for signature. |
