The Application Of RSA Algorithm To The Figure Signature

Among the various public key cryptosystem, RSA algorithm is the best choice in both theory and application, and it is open used in digital signature and identification system. The digital signature technique is one of the kernel techniques of network business security, and the data encryption technique is the basis of the digital signature technique. The digital signature provides a digital authentication method to resolve many problems about security, such as forgery, disavow, imitation and juggle, and is also used to the authentication of both sides of the communication. Humans usually add a segment of digitals into the digital message to realize the digital signature by using encrytion algorithms in order to prove the message sender's identity and correctness of the message. The author made RSA data encrytion algorithm the basis of the digital signature.In the paper, the author made a detailed analysis of the application of RSA algorithm to the figure signature and discussed RSA algorithm comprehensively. One special feature of which facilitate the implementation of the RSA public key algorithms. The paper focuses on rapid-realizing ways of all kinds of RSA algorithm and made some proper improvements on a few segments of the algorithm.Fast implementation of the RSA public key algorithms is one of direction of current public key algorithm. The research of this paper has using value, improving the processing of encryption and decryption by fast implementation of modular exponentiation and modular multiplication algorithm.