Signature realization method and signature realization device

Abstract

The invention discloses a signature realization method and a signature realization device. The method comprises the following steps that: a receiving host machine sends signature request instructions, and in addition, the analysis is carried out according to preset rules; the type of data to be signed is detected according to the first part preset length, if the data to be signed is original text data to be signed, the storage position of a signature key, a signature mark and the original text data to be signed are determined according to data obtained through the analysis, the preprocessing is carried out on the user mark value and the user mark length in a data domain and the original text data to be signed according to the algorithm corresponding to the signature mark, and data to be signed is generated; if the data to be signed is pretreated data, when the data domain length value of the signature request instruction conforms to the preset vale, the storage position of the signature key and the data to be signed are determined according to the data domain; and the data to be signed is signed to generate signature results, and the signature results are sent to the host machine according to a first preset format. In the realization scheme of the method and the device provided by the invention, the safety and the identifiability of the signature are improved because of the participation of a signature public key and a user mark.

Description

technical field

[0001] The invention belongs to the field of information security, in particular to a method and device for realizing a signature. Background technique

[0002] At present, with the rapid development of network technology, information security has become an urgent problem to be solved. In the public key cryptography system, the keys used in the decryption and encryption processes are different, and the decryption and encryption can be separated. The communication parties can establish confidential communication without exchanging keys in advance, which better solves the problem of traditional cryptography in network communication. question. In addition, with the development of e-commerce, the electronic transactions of funds on the network are becoming more and more frequent, and how to prevent information forgery and deception has become a very important issue.

[0003] Digital signature can play the role of identity authentication and approval of data int...

Images