Delegation of electronic signature by multi-agent cryptography

Details Delegation of electronic signature by multi-agent cryptography Delegation of electronic signature by multi-agent cryptography

2003-12-11

2009-08-25

Zand, Kambiz (Department: 2439)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

Reexamination Certificate

active

07581109

ABSTRACT:
For signing of data by a given one of M delegates mandated by N titleholders, where M≧2 and N=1 or M=1 and N≧2, the terminal of the given delegate reads in a delegation server information on the delegates and the titleholders of the group thus constituted. The data and the information read and a private key of the given delegate are applied to a cryptographic algorithm to produce a signature which therefore carries a cryptographic delegation mark. The data, information, and signature are transmitted to a user terminal that can trace the characteristics of the signature delegation.

REFERENCES:
patent: 5825880 (1998-10-01), Sudia et al.
patent: 6839436 (2005-01-01), Garay et al.
patent: 2003/0145223 (2003-07-01), Brickell et al.
Sun, H-M et al., Threshold Proxy Signatures, IEE Proc.-Computers & Digital Techniques, vol. 146, No. 5, Sep. 1999, pp. 259-263.
Yi, L. et al., Proxy Multi-Signature Scheme: A New Type of Proxy Signature Scheme, Electronics Letters, Mar. 16, 2000, vol. 36, No. 6.

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