Adaptive multi-step digital signature system and method of opera

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm

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380 30, H04L 932

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active

058675787

ABSTRACT:
A multi-step digital signature system and method is provided having a distributed root certifying authority 20. Messages received at the root certifying authority 20 are distributed to root certifying authority members 22-30 who attach partial signatures to the message using root key fragments. In the system and method provided, the system adapts to system events such as the addition or removal of key fragment holders, the need to modify key fragments, etc., by changing key fragments.

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