PAYMENT CARD FINANCIAL TRANSACTION AUTHENTICATOR
First Claim
1. A payment card financial transaction authenticator (152) method for providing overall financial network security, comprising:
- computing a number of results (132) from a cryptographic key (130) that match values that were selectively used to personalize individual payment cards (102) with their individual user identification and account access codes; and
authenticating an account access code presented during a financial transaction involving at least one of those individual payment cards (102) with a dynamic portion obtained from a merchant'"'"'s magnetic reading of said payment card (102), by matching that with values computed from said cryptographic key (130).
4 Assignments
0 Petitions
Accused Products
Abstract
A payment card financial transaction authenticates for providing overall financial network security computes a number of results from a cryptographic key that match values that were selectively used to personalize individual payment cards with their individual user identification and account access codes. An account access code is later presented daring a financial transaction involving at least one of those individual payment cards. A dynamic portion is included in a merchant'"'"'s magnetic reading of the payment card. Then authenication can proceed by matching it with values computed from the cryptographic key.
501 Citations
12 Claims
-
1. A payment card financial transaction authenticator (152) method for providing overall financial network security, comprising:
-
computing a number of results (132) from a cryptographic key (130) that match values that were selectively used to personalize individual payment cards (102) with their individual user identification and account access codes; and authenticating an account access code presented during a financial transaction involving at least one of those individual payment cards (102) with a dynamic portion obtained from a merchant'"'"'s magnetic reading of said payment card (102), by matching that with values computed from said cryptographic key (130). - View Dependent Claims (2, 3)
-
-
4. A payment card financial transaction authenticator (152) for providing overall financial network security, comprising:
-
a device for computing a number of results (132) from a cryptographic key (130) that match values that were selectively used to personalize individual payment cards (102) with their individual user identification and account access codes; and a processor for authenticating an account access code presented during a financial transaction involving at least one of those individual payment cards (102) with a dynamic portion obtained from a merchant'"'"'s magnetic reading of said payment card (102), by matching that with values computed from said cryptographic key (130). - View Dependent Claims (5, 6)
-
-
7. A method for authenticating a payment card financial transaction comprising:
-
using a table of results (132) produced from a cryptographic key (130) to personalize individual payment cards (102) with user identification and account access codes; and authenticating an account access code with a dynamic portion obtained from a merchant'"'"'s magnetic reading of a payment card (102); and comparing data from the step of authenticating with values computed from said cryptographic key (130). - View Dependent Claims (8, 9)
-
-
10. A device for authenticating a payment card financial transaction comprising:
-
a table of results (132) produced from a cryptographic key (130) to personalize individual payment cards (102) with user identification and account access codes; and a peripheral for authenticating an account access code with a dynamic portion obtained from a merchant'"'"'s magnetic reading of a payment card (102); and a processor for comparing data from the step of authenticating with values computed from said cryptographic key (130). - View Dependent Claims (11, 12)
-
Specification