Method and system for processing of documents with electronic signatures
First Claim
1. A computerized method for providing an electronically signed document by a signer of said document, said method comprising a first step (3) of transforming a signer machine-readable source format (mrf1) of said document into a universal format (hrf1) representing said document identically and independently from a computer system used for its representation, and a second step (4) of creating an electronic signature (sig) based on said universal format of said document, and a third step (5) of providing to an exploiter of said document said electronic signature and a single representation of said document in an exchange format allowing said exploiter to verify validity of said signature with respect to said document in said universal format, and to create an exploiter machine-readable source format of said document for further processing by said exploiter in validated conformance with said representation of said document in said universal format.
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Abstract
The present invention relates to a method and corresponding system for the computerized processing of documents with electronic signatures. For providing an electronically signed document to an exploiter the current invention suggests a first step of transforming a signer machine-readable source format of the document into a universal format representing said document identically and independently from a computer system used for its representation. In a second step the electronic signature is created based on the universal format of the document. Finally in a third step the electronic signature and a single representation of the document in an exchange format is provided to an exploiter. For further processing of the electronically signed document by an exploiter it is suggested to validate the electronic signature by transforming the exchange format of the document into the universal format of the document and validating said signature with respect to said universal format of the document. Finally an exploiter machine-readable source format of the document is created from its exchange format.
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Citations
19 Claims
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1. A computerized method for providing an electronically signed document by a signer of said document,
said method comprising a first step (3) of transforming a signer machine-readable source format (mrf1) of said document into a universal format (hrf1) representing said document identically and independently from a computer system used for its representation, and a second step (4) of creating an electronic signature (sig) based on said universal format of said document, and a third step (5) of providing to an exploiter of said document said electronic signature and a single representation of said document in an exchange format allowing said exploiter to verify validity of said signature with respect to said document in said universal format, and to create an exploiter machine-readable source format of said document for further processing by said exploiter in validated conformance with said representation of said document in said universal format.
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7. A computerized method for further processing of an electronically signed document by an exploiter,
said method comprising a first step (5) of receiving a single representation of said document in an exchange format, and an electronic signature (sig) based on said universal format of said document, said universal format representing said document identically and independently from a computer system used for its representation, a second step of validating (6, 11) said signature by transforming said exchange format of said document into said universal format (hrf1) of said document and validating said signature with respect to said universal format of said document, and a third step of creating (5, 7) an exploiter machine-readable source format of said document from said exchange format.
Specification