H - Electricity – 04 – L
Patent
H - Electricity
04
L
354/33
H04L 9/14 (2006.01) G06F 21/00 (2006.01) H04L 9/32 (2006.01) G06Q 20/00 (2006.01)
Patent
CA 2018770
A time notarization apparatus and method is disclosed which uses a secure, microprocessor based hardware platform which performs public key cryptographic operations to obtain trusted time stamping with a minimum of intervention by third parties. The hardware platform is encapsulated in a secure fashion so that the device's timestamping mechanism may not be readily tampered with or altered. The hardware platform includes at least one digital clock and a stable, secure storage device to record the private half of a public/private key pair. Coupled to both the digital clock and the storage device is a data processing device which performs public key signature operations in a secure and tamper-proof manner. Only the processing device has access to the secure storage device and its associated private key. The hardware platform also includes input/output means which receives a digital message which is to be digitally signed and timestamped and which outputs the resulting timestamped signature generated by the device. The hardware platform also includes a power source, (e.g., an on-board battery) to ensure the accuracy of the device's digital clock and the security of storage data prior to installation or in case of a power failure.
Fisher Addison M.
Gowling Lafleur Henderson Llp
LandOfFree
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