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Publication numberWO2005045617 A3
Publication typeApplication
Application numberPCT/US2004/035459
Publication date16 Apr 2009
Filing date26 Oct 2004
Priority date27 Oct 2003
Also published asCA2545015A1, CA2545015C, CA2816996A1, CA2816996C, US8190893, US8583928, US20050091492, US20120260093, WO2005045617A2
Publication numberPCT/2004/35459, PCT/US/2004/035459, PCT/US/2004/35459, PCT/US/4/035459, PCT/US/4/35459, PCT/US2004/035459, PCT/US2004/35459, PCT/US2004035459, PCT/US200435459, PCT/US4/035459, PCT/US4/35459, PCT/US4035459, PCT/US435459, WO 2005/045617 A3, WO 2005045617 A3, WO 2005045617A3, WO-A3-2005045617, WO2005/045617A3, WO2005045617 A3, WO2005045617A3
InventorsGlenn Stuart Benson, Joseph R Calaceto, Russel M Logar
ApplicantJp Morgan Chase Bank, Glenn Stuart Benson, Joseph R Calaceto, Russel M Logar
Export CitationBiBTeX, EndNote, RefMan
External Links: Patentscope, Espacenet
Portable security transaction protocol
WO 2005045617 A3
Abstract
A technique for providing message authenticity includes accepting transaction information, accepting a first data item used for authenticating an originating user, cryptographically processing the transaction information using only a second data item, wherein the entropy of the first data item is less than the entropy of the second data item, and authenticating the originating user using the first data item. The first data item can be a sequence of digits corresponding to those displayed on an external device, such as, for example, an RSA authorization token, credit card, etc. In general, the first data item will be a short alphanumeric string and the second data item will generally be much larger, e.g., a 128 bit sequence to be used principally for data authentication. According to another aspect of the present invention, consequential evidence of the transaction may be secured to provide after-the-fact evidence of the transaction. This evidence can include a message written to a tamper-resistant log record, the message including the transaction information, the first data item, the second item, and an identifier for the originating user, as well as other information. At a subsequent point, the transaction can be shown to have been sent by the originating user and received by the intended recipient, by consulting the log record. Preferably, the validity of the transaction would be ascertained by an independent, mutually trusted third party.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US20030191947 *30 Apr 20039 Oct 2003Microsoft CorporationSystem and method of inkblot authentication
US20030194085 *12 Apr 200216 Oct 2003Microsoft CorporationProtection of application secrets
Classifications
International ClassificationG06Q20/00, H04L9/00
Cooperative ClassificationG06Q20/02, H04L9/3247, G06Q20/4014, H04L63/08, G06Q20/4016, G06Q20/04, H04L9/3236, G06F21/10, H04L63/0853
European ClassificationG06Q20/02, G06Q20/04, G06Q20/4014, G06Q20/4016
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