Electronic autograph on document

A document, electronic pen technology, applied in computer parts, electronic digital data processing, input/output process of data processing, etc., can solve the problem of vulnerable to intra-network attacks, unclear end users, unprotected signatures and their file integrity And other issues
CN1397869AInactive Publication Date: 2003-02-19TRUSTCOPY PTE
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TRUSTCOPY PTE
Publication Date
2003-02-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

An electronic signature of document by electronic pen is disclosed. Its method includes collecting personal signature, authenticating, generating ID, and attaching the personal signature, ID and optical watermark to the document. A method for validating signature on document includes signing with electronic pen, generating abstract of document, encrypting by electronic pen, generating ID, and integrating ID, abstract and document.
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Description

technical field

[0001] The present invention relates to a method and system for document electronic signature, in particular but not limited to a method and system for protecting the integrity and originality of signed documents.

[0002] definition

[0003] The method and system can use autographs, as well as other "capturable" signatures, such as digital credentials, voice, seals, fingerprints, facial features, eye masks, and the like. For example, a smart card can be used to store a seal image and use it to sign documents. This seal is protected from exposure by utilizing an optical watermark. Another example is signing documents using the voice of the signer. This voice can be recorded as a "signature" using digital recording technology. "Autographed signature" throughout this specification is considered to include all such collectible signatures.

[0004] Therefore, signature devices can be extended from electronic pens to other sensing device...

Claims

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