Safe and valid signature scheme for electronic file and paper file thereof

Abstract

The invention relates to a safe and valid signature scheme for an electronic file and a paper file thereof. The scheme comprises the following steps of: inputting a signature or seal of a user through an electronic input device, performing digital signature on the file by the user through the adoption of a private key, embedding the digital signature into the user signature through the adoption of a specific image information embedding technology so as to certificate the electronic file accepted by the user or the electronic edition of the paper file thereof; the aim that the certificated file cannot be tampered or denied that the file is certificated by the user himself can be still achieved through the verification on the electronic or paper signature of the user even if the certificated electronic file or the user signature in which the information is embedded are printed and output as the paper edition.

Description

technical field [0001] The invention relates to digital signature technology in the field of information security, in particular to a safe and effective signing scheme for electronic documents and paper documents. Background technique [0002] Signatures, seals, and fingerprints are often used in our daily production and life to express our approval of a certain document, a certain contract, or a certain transaction. If these signatures, seals and fingerprints are entered into the computer, they will not have the effect of approving the content of a certain file because they are easy to copy and embezzle. The digital signature of information security technology can perfectly solve the unique authenticity and validity of the document, but the digital signature data itself is a long series of abstract mathematical symbols. In daily use, there is no signature or stamp at a glance, and the data is not obtained through technology and the Internet. , and it is difficult to know t...

AI Technical Summary

Problems solved by technology

[0002] Signatures, seals, and fingerprints are often used in our daily production and life to express our approval of a certain document, a certain contract, or a certain transaction. If these signatures, seals and fingerprints are entered into the computer, they will not have the effect of approving the content of a certain document because they are easy to copy and embezzle.

The digital signature of information security technology can perfectly solve the unique authenticity and validity of the document, but the digital signature data itself is a long series of abstract mathematical symbols. In daily use, there is no signature or stamp at a glance, and the data is not obtained through technology and the Internet. , it is also difficult to know the identity of the signer

Therefore, simple signatures or digital signatures cannot well meet the certification requirements for information and documents in modern production and life.

[0003] The certification and signature of documents in the office is difficult to be used in both paper and electronic documents; some bank POS machines use handwriting screen signatures, and purely electronic signatures are very easy to copy and steal, and customers need to save POS slips to reconcile with the bank. It is cumbersome; there is currently no effective authentication method for credit card consumption on the mobile phone only through signature confirmation and no password; multi-party visas in the contract need to be kept by multiple parties to prevent tampering, waste resources, and inefficiency

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