Systems and methods for verifying documents
Systems and methods for verifying a document. A document having an encoded document data portion that includes assist information and at least one digitally-signed appended one-way hash is inputted. The encoded document data file is decoded and a representation is recovered using the assist informat...
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| Main Authors | , , |
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| Format | Patent |
| Language | English |
| Published |
03.07.2007
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| Online Access | Get full text |
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| Summary: | Systems and methods for verifying a document. A document having an encoded document data portion that includes assist information and at least one digitally-signed appended one-way hash is inputted. The encoded document data file is decoded and a representation is recovered using the assist information. A verification one-way hash is generated from the recovered representation. The verification one-way hash is then compared to the appended one way hash and the authenticity of the document is verified based on the results of the comparison. |
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