System for enabling digital signature auditing

• Main Authors: OSBORNE MICHAEL CHARLES, TAMAS VISEGRADY
• Format: Patent
• Language: Chinese; English
• Published: 27.11.2013
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention is notably directed to methods and systems for enabling digital signature auditing (S41). The methods are implemented in a computerized system (1) comprising a server (10) communicating with applications (A, B, C), and comprising, at the server, steps of: receiving (S13) one or more signature requests (a i, b i, c i ) issued by one or more of the applications; forwarding (S14) first data corresponding to the received signature requests to one or more signing entities (Sig - 4 ) for subsequent signature of the first data; storing (S16) an updated system state (s n+ ), computed (S15) using a function of: a reference system state (s n ); and - second data (a i, b i, c i, A i, B i, C i ) corresponding to the received signature requests, whereby the reference system state and the updated system state attest to 1 the signature requests; and - repeating the above steps (S12 - S16), using the updated system state (s n+ ) as a new reference system state.