Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1997-01-31
1998-02-10
Gregory, Bernarr E.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 21, 380 23, 380 29, 380 30, 380 49, H04L 900, H04L 930
Patent
active
057177597
ABSTRACT:
A method for certifying public keys of a digital signature scheme in a communications system is provided. The secure communications system is one in which there are at least two levels of authorities. A user presents a piece of data to an intermediate level authority who, upon verifying the data, causes an issuing authority to issue a certificate that the piece of data posses a given property. Although the certificate is compacted by not having it contain a pubic key of the intermediate authority, nonetheless, information is stored in order to keep the intermediate authority accountable.
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