Digital signatures with an embedded view
First Claim
1. A computer-readable medium storing a digital signature, wherein the digital signature comprises an embedded view of signed data, the embedded view locking the signed data and comprising a visual representation of the signed data as seen by a signer if signing the signed data, and wherein the embedded view permits the signed data to be repurposed to allow the signed data to be co-signed or counter-signed, wherein the digital signature further comprises embedded information sufficient to recreate the embedded view from the signed data, the embedded information including one or more specifications of a computing environment used to present the visual representation, and wherein the digital signature further comprises a signature block comprising an XML tag indicating the signed data from other data of an electronic document.
2 Assignments
0 Petitions
Accused Products
Abstract
Digital signatures having an embedded view of signed data that lock the signed data but permit it to be repurposed are described. One of these digital signatures can be repurposed for signature by others, such as co-signers or counter-signers. Another of these digital signatures includes embedded information sufficient to recreate the embedded view using the signed data. A method for building a digital signature is also described that permits signing different parts of an electronic document.
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Citations
21 Claims
- 1. A computer-readable medium storing a digital signature, wherein the digital signature comprises an embedded view of signed data, the embedded view locking the signed data and comprising a visual representation of the signed data as seen by a signer if signing the signed data, and wherein the embedded view permits the signed data to be repurposed to allow the signed data to be co-signed or counter-signed, wherein the digital signature further comprises embedded information sufficient to recreate the embedded view from the signed data, the embedded information including one or more specifications of a computing environment used to present the visual representation, and wherein the digital signature further comprises a signature block comprising an XML tag indicating the signed data from other data of an electronic document.
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10. A computer-readable medium storing a digital signature comprising a static image of signed data when signed, wherein the digital signature is configured to lock the signed data and permit the signed data to be repurposed, the digital signature further comprising embedded information sufficient to recreate a view of the signed data that is identical to the static image, the embedded information including one or more specifications of a computing environment used to present the signed data, wherein the view provides a first visual representation associated with the signed data as seen by a signer if signing the signed data, and wherein the digital signature is further configured to permit at least one of:
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viewing a second visual representation of the signed data different than the first visual representation;
orco-signing or counter-signing the signed data. - View Dependent Claims (11)
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12. One or more computer-readable media storing computer executable instructions that, when executed by a computer, perform a method comprising:
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embedding a static image of data into a signature block of a digital signature, wherein at least a portion of the data is identifiable as signed data that is repurposable allowing a second digital signature of the signed data to be built, and wherein the static image provides a visual representation of the signed data as seen by a signer if signing the signed data, wherein the signature block comprises an XML tag indicating the repurposable signed data; and embedding information into the digital signature sufficient to recreate the static image from the signed data, the embedded information including one or more specifications of a computing environment used to present the static image. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A method comprising:
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receiving a digital signature having an embedded static image of data, wherein at least a portion of the data is identifiable as signed data, and wherein the embedded static image provides a visual representation of the signed data as seen by a signer if signing the signed data, wherein the digital signature further comprises embedded information sufficient to recreate the static image from the signed data, the embedded information including one or more specifications of a computing environment used to present the static image; and repurposing the signed data without breaking the digital signature, wherein the act of repurposing comprises; building a second digital signature of the signed data; and presenting a static image of the signed data that is different than the embedded static image. - View Dependent Claims (21)
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Specification