Weak signature algorithm

Abstract

The invention provides a weak signature algorithm. The weak signature algorithm comprises the following steps that: a server generates a random number R and performs hash operation on the R to obtain H; the server encrypts the R and the H by using the public key K1 of a client to generate a ciphertext S; and the server transmits the ciphertext to the client. According to the weak signature algorithm, a public / private key signature algorithm is simplified; the server generates a random number and encrypts the random number by using the public key of the client before sending to the client; the client decrypts the random number and generates an abstract value from the random number together with a signature cleartext by using a hash algorithm, and the abstract value is taken as signature data; compared with direct signature with a private key, the abstract result generated by the hash algorithm is much shorter, and therefore, the communication success ratio of digital signature is greatly increased.

Description

technical field [0001] The invention relates to an Internet identity authentication, in particular to a weak signature algorithm. Background technique [0002] With the continuous development of e-commerce in our country, more and more people conduct transactions on the Internet. Existing financial institutions such as online banks generally use digital signatures for identity authentication. However, in some cases where the transmission environment is limited, digital signatures The communication success rate is low, which makes it difficult for users to conduct transactions on the Internet. Contents of the invention [0003] The purpose of the present invention is to provide a weak signature algorithm, which solves the problem that financial institutions such as online banks generally use digital signatures for identity authentication, but in some cases where the transmission environment is limited, the communication success rate of digital signatures is low. As a resul...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a weak signature algorithm, which solves the problem that financial institutions such as online banks generally use digital signatures for identity authentication, but in some cases where the transmission environment is limited, the communication success rate of digital signatures is low. As a result, users cannot conduct transactions on the Internet very well

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