System and method for electronic endorsement of document

Abstract

An electronic signature system for files comprises an electronic signature server and at least a client side. A key storage and a security chip with encryption / decryption function are arranged in the electronic signature server, the electronic signature server is to provide the encryption / decryption operation server, and the electronic signature server is connected to the client side through a wired mode or a wireless mode. Because the electronic signature system uses the security chip to encrypt a private key in the RSA key pair, all the code operation is in the security chip on the service and no-extra devices are needed to protect the private key and conduct code operation. Under the condition of a large scale application of the electronic signature, the cost of the private storage and the code operation is substantially reduced, and the demands for the special situation of the non-network interface screen are satisfied. Because the processing procedure of the electronic signature for files is operated in the security chip, the security of the private key operation is improved and the authenticity of the electronic signature is guaranteed.

Description

technical field [0001] The invention relates to the technical field of communication security, in particular to a system and method for electronically signing documents. Background technique [0002] An electronic signature refers to the data contained in electronic form in a data message and attached to identify the identity of the signatory and to indicate that the signatory approves the content. At present, the main way to apply electronic signatures to electronic documents is: the signer uses the private key in the digital certificate that identifies his identity to sign the electronic document, and generates signature data, which together with the original electronic document constitute the signed electronic document. The private key here is generally stored in the IC card, USB token or password encrypted and stored in the hard disk. When performing the signature operation, use the password to decrypt the key in the memory and complete the signature calculation, or com...

AI Technical Summary

Problems solved by technology

[0017] The technical problem to be solved by the present invention is to provide a system and method for electronically signing documents, which overcomes the problems of insecure key storage, high deployment costs, easy theft of electronic signatures and tampering defect

Images