Method and system for payment card linked offer generation

A method for discounting a payment transaction, comprising

• storing, in a memory, transaction data for a payment transaction, wherein the transaction data includes at least a transaction amount;
• receiving, by a receiving device, payment card data of a payment card of a consumer, wherein said payment card data is associated with a payment account of the consumer and includes at least a payment account number;
• receiving, by the receiving device, offer data, wherein the offer data includes an offer identifier associated with the payment account of the consumer and a transaction modifier;
• encrypting, using a predetermined encryption key, at least a portion of the payment account number included in the payment card data of the payment card to obtain an encrypted account number;
• encrypting, using one of:
• the predetermined encryption key or a second key corresponding to the predetermined encryption key, the offer identifier to obtain an encrypted offer identifier;
• and
• updating, in the memory, the transaction amount included in the transaction data based on the transaction modifier when the encrypted account number corresponds to the encrypted offer identifier.

A system for discounting a payment transaction, comprising:

• a memory configured to store transaction data for a payment transaction, wherein the transaction data includes at least a transaction amount;
• a receiving device configured to receive
• payment card data associated with a payment card account of a consumer, wherein the payment card data includes at least a payment account number, and
• offer data, wherein the offer data includes an offer identifier associated with the payment account of the consumer and a transaction modifier;
• and
• a processing device configured to
• encrypt, using a predetermined encryption key, at least a portion of the payment account number included in the payment card data of the payment card to obtain an encrypted account number;
• and
• update, in the memory, the transaction amount included in the transaction data based on the transaction modifier when the encrypted account number corresponds to the offer identifier.

The system for discounting a payment transaction, comprising:

• a memory configured to store transaction data for a payment transaction, wherein the transaction data includes at least a transaction amount;
• a receiving device configured to receive
• payment card data associated with a payment card account of a consumer, wherein the payment card data includes at least a payment account number, and
• offer data, wherein the offer data includes an offer identifier associated with the payment account of the consumer and a transaction modifier;
• and
• a processing device configured to
• encrypt, using a predetermined encryption key, at least a portion of the payment account number included in the payment card data of the payment card to obtain an encrypted account number,
• encrypt, using one of the predetermined encryption key or a second key corresponding to the predetermined encryption key, the offer identifier to obtain an encrypted offer identifier, and
• update, in the memory, the transaction amount included in the transaction data based on the transaction modifier when the encrypted account number corresponds to the encrypted offer identifier.