DIGITAL SIGNATURE AUTHENTICATION
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United States of America Patent
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Jul 7, 2016
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Feb 5, 2007
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Abstract
A systems and methods for authenticating a consumer with a transaction card using digital signatures according to one embodiment of the invention is disclosed. These systems and methods allow consumers to digitally sign transaction information with a private key. The private key may be used to digitally sign the transaction, for example, through a hosted or local system that protects the integrity of the private key. A financial institution may authenticate the consumer by decrypting the digital signature with a public key.
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