Systems and Methods of Processing Payment Transactions Using One-Time Tokens

A system for use in processing a payment transaction request from a merchant, the system comprising:

• a computing device configured to communicate with a payment network, the computing device including a processor and a memory coupled to the processor, the memory configured to store a plurality of actual PANs, the processor configured to:
• periodically generate an encryption salt;
• receive an authorization request for a payment transaction, the authorization request including a pseudo-PAN, the pseudo-PAN having the same format as each of the plurality of actual PAN stored in the memory;
• decrypt the pseudo-PAN based on the encryption salt most recently generated prior to receipt of the request,
• search, in the memory, for one of the plurality of actual PANs that matches the decrypted pseudo-PAN;
• modify the authorization request to include said one of the plurality of actual PANs in place of the pseudo-PAN, when the decrypted pseudo-PAN matches said one of the plurality of actual PANs in the memory;
• and
• transmit the modified authorization request to an issuer.

A computer-implemented method of making a purchase using a payment account associated with a consumer, the payment account being identified by actual payment information, the method comprising:

• generating an encryption salt;
• receiving, at an input device, a request from a consumer indicating a possible payment transaction;
• in response to the request, generating, at a processor, a one-time token, based on the actual payment information and most recently generated encryption salt, the one-time token having the same format as the payment information, a routing segment of the one-time token being identical to a routing segment of the payment information;
• and
• presenting, via an output device, the one-time token.

A system for use in processing a payment transaction request from a merchant, the system comprising:

• a computing device coupled to a payment network, the computing device including a processor and a memory coupled to the processor, the memory configured to store actual payment information for multiple payment accounts, the processor configured to:
• periodically generate an encryption salt;
• receive an authorization request for a payment transaction, the authorization request including a one-time token;
• decrypt the one-time token based on a most recently generated encryption salt prior to receipt of the authorization request, the one-time token having the same format as the actual payment information, from which the one-time token was generated;
• search, in the memory, for the decrypted one-time token;
• modify the authorization request to include the actual payment information for one of the multiple payment accounts in place of the one-time token, when the decrypted one-time token matches said actual payment information for the one of the multiple payment accounts in the memory;
• and
• transmit the modified authorization request to an issuer.