Cryptographic key escrow system having reduced vulnerability to

Details Cryptographic key escrow system having reduced vulnerability to Cryptographic key escrow system having reduced vulnerability to

1995-09-15

1997-05-27

Cain, David C.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 28, H04K 100

Patent

active

056339291

ABSTRACT:
A public key escrow system is adapted to have a proof of knowledge protocol for a certificate. The certificate is signed with RSA and is proved using a protocol based on the Guillou-Quisquater proof of knowledge scheme, or other proof of knowledge protocol. Interactive and non-interactive protocols are disclosed.

REFERENCES:
patent: 5553145 (1996-09-01), Micali
"A Practical Zero-Knowledge Protocol Fitter to Security Microprocessor Minimizing Both Transmission and Memory", Guillou/Quisquater, CCETT, BP59, pp. 123-128.
"A New Approach to Software Key Escrow Encryption", Balenson et al., TIS Report #520, pp. 1-29.
"Zero-Knowledge Proofs of Identity", Feign, et al., Journal of Cryptology, 1988, pp. 77-94.

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