Efficient electronic money

Details Efficient electronic money Efficient electronic money

1994-09-08

1996-04-23

Cain, David C.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 23, 380 30, H04K 100

Patent

active

055111211

ABSTRACT:
A unique electronic cash system protects the privacy of users in legitimate transactions while at the same time enabling the detection of a double spender of the same electronic coin. The electronic cash system takes advantage of a unique property of El Gamal signatures to achieve these results.

REFERENCES:
patent: 4977595 (1990-12-01), Ohta et al.
patent: 5199070 (1993-03-01), Matsuzaki et al.
patent: 5222140 (1993-06-01), Beller et al.
patent: 5224162 (1993-06-01), Okamoto et al.
patent: 5299263 (1994-03-01), Beller et al.
W. Diffie et al., "New Directions in Cryptography", IEEE Transactions on Information Theory, 1976, vol. IT-22, pp. 644-654.
R. L. Rivest et al., "A Method for Obtaining Digital Signatures and Public-Key Cryptosystems," Communications of the ACM, 1978, vol. 21, pp. 120-126.
D. Chaum et al., "Untraceable Electronic Cash", Proceedings of Crypto 1988, pp. 1-8.
D. Chaum, "Achieving Electronic Privacy," 1992, Scientific American, pp. 96-101.
S. Brands, "Electronic Cash Systems Based On The Representation Problem in Groups of Prime Order," Proceedings of Crypto '93, Santa Barbara, CA., pp. 26.1-26.15.
S. Evan et al., "Electronic Wallet," Proceedings of the 1984 International Zurich seminar on Digital Communications, Santa Barabara, CA, pp. K 3.1-K 3.2.
T. Elgamal, "A Public Key Cryptosystem and a Signature Scheme Based on Discrete Logarithms," IEEE Transactions on Information Theory, 1985, vol. IT-31, pp. 469-472.
O. Goldreich et al., "Proofs that Yield Nothing But Their Validity or All Languages in NP Have Zero-Knowledge Proof Systems," Journal of the Association for Computing Machinery, 1991, vol. 38, pp. 691-729.
S. Goldwasser et al., "The Knowledge Complexity of Interactive Proof Systems," SIAM Journal on Computing, 1989, vol. 18, pp. 186-208.
E. F. Brickell et al. "Gradual and Verifiable Release of a Secret," Proc. Crypto '87, pp. 156-166.
M. O. Rabin, "Digitalized Signatures and Public-Key Functions as Intractable as Factorization," MIT Laboratory For Computer Science, Jan. 1979, pp. 1-16.

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