Efficient digital signatures for mail systems

Details Efficient digital signatures for mail systems Efficient digital signatures for mail systems

H - Electricity

04

L

H04L 9/32 (2006.01) G07B 17/00 (2006.01) H04L 9/30 (2006.01)

Patent

CA 2285770

This invention relates to a method for generating a digital signature. The method comprises the steps of generating a short term private key, computing a short term public key derived from the private key, computing a first signature component derived from the short term public key, computing an intermediate signature component derived from the first signature component as a function of the number of bits in a binary representation of the first signature component, computing a second signature component, derived from the short term private key, the message M and the intermediate signature component; transmitting the second and intermediate signature components as a signature for the message M. and encoding the signature onto a digital postage mark for application to a postal item.

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