Abstract: A method for generating and provisioning payment credentials to a mobile device lacking a secure element includes: generating a card profile associated with a payment account, wherein the card profile includes at least payment credentials corresponding to the associated payment account and a profile identifier; provisioning, to a mobile device lacking a secure element, the generated card profile; receiving, from the mobile device, a key request, wherein the key request includes at least a mobile identification number (PIN) and the profile identifier; using the mobile PIN; generating a single use key, wherein the single use key includes at least the profile identifier, an application transaction counter, and a generating key for use in generating a payment cryptogram valid for a single financial transaction; and transmitting the generated single use key to the mobile device.

Abstract: A system and method for generating and provisioning payment credentials to a mobile device lacking a secure element includes receiving and storing by the mobile device a card profile from a remote system. The card profile may include payment credentials corresponding to a payment account and a profile identifier. The mobile device may receive a mobile personal identification number (PIN) input by a user of the mobile device and transmit a key request to the remote system. The mobile device may receive a single use key which may include an application transaction counter and a generating key from the remote system. The mobile device may generate a payment cryptogram valid for a single financial transaction based on the received single use key and the mobile PIN and transmit the payment credentials and the generated payment cryptogram to a point-of-sale terminal for use in a financial transaction.

Abstract: A method for generating and provisioning payment credentials to a mobile device lacking a secure element includes: generating a card profile associated with a payment account, wherein the card profile includes at least payment credentials corresponding to the associated payment account and a profile identifier; provisioning, to a mobile device lacking a secure element, the generated card profile; receiving, from the mobile device, a key request, wherein the key request includes at least a mobile identification number (PIN) and the profile identifier; using the mobile PIN; generating a single use key, wherein the single use key includes at least the profile identifier, an application transaction counter, and a generating key for use in generating a payment cryptogram valid for a single financial transaction; and transmitting the generated single use key to the mobile device.

Abstract: A method for generating and provisioning payment credentials to a mobile device lacking a secure element includes: generating a card profile associated with a payment account, wherein the card profile includes at least payment credentials corresponding to the associated payment account and a profile identifier; provisioning, to a mobile device lacking a secure element, the generated card profile; receiving, from the mobile device, a key request, wherein the key request includes at least a mobile identification number (PIN) and the profile identifier; using the mobile PIN; generating a single use key, wherein the single use key includes at least the profile identifier, an application transaction counter, and a generating key for use in generating a payment cryptogram valid for a single financial transaction; and transmitting the generated single use key to the mobile device.

Abstract: A method for enhanced validation of cryptograms for varying account number lengths includes: storing one or more primary account numbers and a plurality of formatting templates, each template being associated with an account number length; receiving a selection indicating a specific primary account number; identifying a specific formatting template where the associated account number length corresponds to a length of the specific primary account number; receiving an unpredictable number from a point of sale device; generating a cryptogram based on at least the unpredictable number and one or more algorithms; generating a data string, wherein the data string includes at least the generated cryptogram, the specific primary account number, and the unpredictable number, and wherein the data string is formatted based on the identified specific formatting template; and electronically transmitting the generated data string to the point of sale device.

Abstract: A method for enhanced validation of cryptograms for varying account number lengths includes: storing one or more primary account numbers and a plurality of formatting templates, each template being associated with an account number length; receiving a selection indicating a specific primary account number; identifying a specific formatting template where the associated account number length corresponds to a length of the specific primary account number; receiving an unpredictable number from a point of sale device; generating a cryptogram based on at least the unpredictable number and one or more algorithms; generating a data string, wherein the data string includes at least the generated cryptogram, the specific primary account number, and the unpredictable number, and wherein the data string is formatted based on the identified specific formatting template; and electronically transmitting the generated data string to the point of sale device.

Abstract: A method for enhanced validation of cryptograms for varying account number lengths includes: storing one or more primary account numbers and a plurality of formatting templates, each template being associated with an account number length; receiving a selection indicating a specific primary account number; identifying a specific formatting template where the associated account number length corresponds to a length of the specific primary account number; receiving an unpredictable number from a point of sale device; generating a cryptogram based on at least the unpredictable number and one or more algorithms; generating a data string, wherein the data string includes at least the generated cryptogram, the specific primary account number, and the unpredictable number, and wherein the data string is formatted based on the identified specific formatting template; and electronically transmitting the generated data string to the point of sale device.

Abstract: A method for receiving and processing a data message includes: storing at least an encryption key; receiving a data message, the data message including at an encrypted message and a message authentication code, the message authentication code generated using at least a portion of the encrypted message; generating a reference authentication code using at least a portion of the encrypted message included in the received data message; validating the received data message based on a check of the message authentication code included in the received data message against the generated reference authentication code; and decrypting the encrypted message included in the received data message using the stored encryption key to obtain a decrypted message.

Abstract: A method for enhanced validation of cryptograms for varying account number lengths includes: storing one or more primary account numbers and a plurality of formatting templates, each template being associated with an account number length; receiving a selection indicating a specific primary account number; identifying a specific formatting template where the associated account number length corresponds to a length of the specific primary account number; receiving an unpredictable number from a point of sale device; generating a cryptogram based on at least the unpredictable number and one or more algorithms; generating a data string, wherein the data string includes at least the generated cryptogram, the specific primary account number, and the unpredictable number, and wherein the data string is formatted based on the identified specific formatting template; and electronically transmitting the generated data string to the point of sale device.

Abstract: A method for enhanced validation of cryptograms for varying account number lengths includes: storing one or more primary account numbers and a plurality of formatting templates, each template being associated with an account number length; receiving a selection indicating a specific primary account number; identifying a specific formatting template where the associated account number length corresponds to a length of the specific primary account number; receiving an unpredictable number from a point of sale device; generating a cryptogram based on at least the unpredictable number and one or more algorithms; generating a data string, wherein the data string includes at least the generated cryptogram, the specific primary account number, and the unpredictable number, and wherein the data string is formatted based on the identified specific formatting template; and electronically transmitting the generated data string to the point of sale device.

Abstract: A method for enhanced validation of cryptograms for varying account number lengths includes: storing one or more primary account numbers and a plurality of formatting templates, each template being associated with an account number length; receiving a selection indicating a specific primary account number; identifying a specific formatting template where the associated account number length corresponds to a length of the specific primary account number; receiving an unpredictable number from a point of sale device; generating a cryptogram based on at least the unpredictable number and one or more algorithms; generating a data string, wherein the data string includes at least the generated cryptogram, the specific primary account number, and the unpredictable number, and wherein the data string is formatted based on the identified specific formatting template; and electronically transmitting the generated data string to the point of sale device.

Abstract: A method for receiving and processing a data message includes: storing at least an encryption key; receiving a data message, the data message including at an encrypted message and a message authentication code, the message authentication code generated using at least a portion of the encrypted message; generating a reference authentication code using at least a portion of the encrypted message included in the received data message; validating the received data message based on a check of the message authentication code included in the received data message against the generated reference authentication code; and decrypting the encrypted message included in the received data message using the stored encryption key to obtain a decrypted message.

Abstract: A method for generating and provisioning payment credentials to a mobile device lacking a secure element includes: generating a card profile associated with a payment account, wherein the card profile includes at least payment credentials corresponding to the associated payment account and a profile identifier; provisioning, to a mobile device lacking a secure element, the generated card profile; receiving, from the mobile device, a key request, wherein the key request includes at least a mobile identification number (PIN) and the profile identifier; using the mobile PIN; generating a single use key, wherein the single use key includes at least the profile identifier, an application transaction counter, and a generating key for use in generating a payment cryptogram valid for a single financial transaction; and transmitting the generated single use key to the mobile device.