Electronic signature

Abstract

The invention provides an electronic signature which is used for signing on a medium and comprises an information processing component and a printing module, wherein the information processing component contains a cryptographic algorithm module and stores the signing messages and the secret key information of a signature owner; the printing module is connected with the information processing component; the printing module can print information on the medium; the cryptographic algorithm module is utilized to carry out cryptographic algorithm processing on the signing messages to obtain ciphertext information by taking the secret key information as the cipher; and the information processing component is utilized to convert the ciphertext information into singing data to be printed by the printing module. By employing the technology of the invention, the uniqueness and the non-imitating characteristic of the signing information on the basis of a medium based electronic bill is improved, thereby enabling the use of the electronic bill to be safer. Due to adopting a way which is easy to identify and use to realize effective signing on the electronic bill, the risk of the electronic bill in use can be remarkably reduced, thereby promoting the development of modern financial industry.

Description

technical field [0001] The present invention relates to an electronic signature, in particular to an electronic signature for bill authentication which encrypts signature information and prints it on an information medium and transmits it to an electronic component embedded in the medium. Background technique [0002] With the development of modern economy, the healthy, orderly and safe development of the financial industry is of great significance to today's economic development. In the development of the financial industry, from cash transactions to the comprehensive popularization of various financial instruments, such as letters of credit, promissory notes, checks, etc., have become the main payment tools for various businesses in the modern economy. [0003] However, due to the value and circulation of financial instruments themselves, the security of financial instruments is greatly challenged. Cases of financial fraud by forging letters of credit, promissory notes, a...

AI Technical Summary

Problems solved by technology

However, based on cost and technical reasons, the anti-counterfeiting marks of letters of credit, promissory notes, and checks are not complicated and can be easily copied by counterfeiters.

There are two problems in the signature or endorsement used to confirm the validity of letters of credit, promissory notes, and checks: on the one hand, the signatures or endorsements performed by the same person in different moods and at different time points cannot be guaranteed to be completely consistent, resulting in valid The signature or endorsement is rejected. On the other hand, because the signature or endorsement must be basically the same each time, it provides opportunities for counterfeiters to forge

For example, online banking and electronic key authentication technology to ensure the security of online banking are becoming an important direction for the development of the modern financial industry, but at the same time, network hackers, viruses, phishing programs, etc. also greatly threaten the security of online banking

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