| 摘要 |
Disclosed is a high speed operating remainder to a specific big integer for the public key cryptographic system corresponding to an arbitrary multiple number of the basic operating unit bit number. Rapid encryption/decryption is possible if the prime number of big integer type used to the public key cryptographic algorithm for encryption/decryption between the server and the terminal under online or wireless communication circumstances. Especially, the elliptical curve cryptographic algorithm defines a fixed prime number as an elliptical curve, and all the temporary operation results is used by being transferred into the remainder of this prime number. The remainder operation takes so much time, so a prime number of big integer type is defined as an elliptical curve, and high speed encryption/decryption of the elliptical curve cryptographic algorithm can be accomplished if the remainder operation to this prime number is used. |
