Trusted Computing Platforms: TCPA Technology in Context

Trusted Signing

This section describes a trusted signature process where a document can be signed in either an ordinary TP or one with a Trusted Display Controller (TDC).

Electronic signing is an area that is receiving increased attention, not least because digital signatures can have some legal validity. A digital signature is a cryptographic mechanism that allows the recipient of a digitally signed message to determine the originator of that message, and to confirm that the message has not been altered since being signed by that originator. For electronic signatures to become legally meaningful, however, the signature needs to clearly indicate the user's intent. Any opportunity to claim confusion as to what the machine was signing versus what ...