Data processing: financial – business practice – management – or co – Business processing using cryptography – Secure transaction
Patent
1998-02-19
2000-08-22
Trammell, James P.
Data processing: financial, business practice, management, or co
Business processing using cryptography
Secure transaction
705 75, 380277, G07F 1900, G06F 1730
Patent
active
061086444
ABSTRACT:
A system and method for performing an electronic transaction, including registration, audit and trusted recovery features. A transaction request message is received from a registered user that includes an unblinded validated certificate, and a blinded unvalidated certificate. If the unblinded validated certificate is determined to be legitimate, then a transaction can be performed, and the blinded unvalidated certificate is validated to obtain a blinded, validated certificate that is sent to the user. An audit protocol can be used to further verify the legitimacy of the transaction request message, and a user can recover from a broken connection by replaying a protocol run.
REFERENCES:
patent: 4759063 (1988-07-01), Chaum
patent: 4759064 (1988-07-01), Chaum
patent: 4914698 (1990-04-01), Chaum
patent: 4949380 (1990-08-01), Chaum
patent: 4991210 (1991-02-01), Chaum
patent: 5115392 (1992-05-01), Takamoto et al.
patent: 5175766 (1992-12-01), Hamilton
patent: 5511121 (1996-04-01), Yacobi
patent: 5606617 (1997-02-01), Brands
patent: 5812668 (1999-09-01), Weber
patent: 5850446 (1999-12-01), Berger et al.
patent: 5857023 (1999-01-01), Demers et al.
patent: 5872844 (1999-02-01), Yacobi
patent: 5878138 (1999-03-01), Yacobi
patent: 5892900 (1999-04-01), Ginter et al.
patent: 5931917 (1999-08-01), Nguyen et al.
patent: 5943423 (1999-08-01), Muftic
Schneier, Bruce. "Applied Cryptography: Protocols, Algorithms, and Source Code in C." 2d (New York: John Wiley & Sons, Inc., 1996) pp. v, 112-115, Jan. 1996.
Lynch Daniel C. and Lesley Lundquist. "Digital Money: the New Era of Internet Commerce." (New York: John Wiley & Sons, Inc., 1996) pp. iii, iv, v, vi, 112-115, 179-182 & 279, Jan. 1996.
Mao, Wenbo. Blind Certification of Public Keys and Off-line electronic Cash. "HP Labs Technical Reports." HPL-96-71 (May 16, 1996) p. 1, Jan. 1996.
D. Chaum, "Untraceable Electronic Mail, Return Addresses, and Digital Pseudonyms", CACM 24, 2, Feb. 1981, pp. 84-88.
D. Chaum, "Security Without Identification: Transaction Systems to Make Big Brother Obsolete", CACM (28, 10), Oct. 1985, pp. 1030-1044.
D. Chaum, A. Fiat, and M. Naor, "Untraceable Electronic Cash", CRYPTO88, pp. 319-327.
L. Cottrell, "Mixmaster and Remailer Attacks", http://obscura.obscura.com/loki/remailer.essay.html.
D. Simon, "Anonymous Communication and Anonymous Cash", CRYPTO96, pp. 61-73.
P. Syverson, D. Goldschlag, and M. Reed, "Anonymous Connections and Onion Routing", Proceedings of the IEEE Symposium on Security and Privacy, IEEE CS Press, May 1997.
P. Syverson, S. Stubblebine, and D. Goldschlag, "Unlinkable Serial Transactions", Financial Cryptography--FC97, Anguilla BWI, Feb. 1997, final proceedings forthcoming from Springer-Verlag, LNCS, vol. 1318.
Goldschlag David M.
Stubblebine Stuart Gerald
Syverson Paul F.
AT&T Corp.
Naval Research Laboratory
Trammell James P.
Young John Leonard
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