Indicating status for digital signatures

Details Indicating status for digital signatures Indicating status for digital signatures

2008-07-29

2008-07-29

Revak, Christopher (Department: 2131)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S186000, C382S119000, C382S120000, C382S121000, C382S122000, C382S123000, C380S232000

Reexamination Certificate

active

10819703

ABSTRACT:
Methods and apparatus, including computer program products, for presenting status of digital signatures. A digital document is received that defines a presentation structure and includes a digital signature. The digital document specifies a representation of the digital signature and a location in the presentation structure for the representation of the digital signature. A status is determined for the digital signature. A status representation is associated with the digital signature, where the status representation identifies the status determined for the digital signature. Without altering the representation of the digital signature, at least a portion of the digital document and the status representation of the digital signature are presented in a user interface, where the status representation is presented in the presentation structure at a location that depends upon the location of the digital signature.

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McKenzie, Bruce, “Digital Signatures and Apple Mail,” bioneural.blog> Mac>, Apr. 25, 2004, http://homepage.mac.com/bruce.mckenzie/iblog/C1703310809/E1216087563/.
Wingfors, Joar, “Using Encryption and Digital Signatures in Mail,” May 31, 2004, http://www.joar.com/certificates/.

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