Server and method for sending a transaction receipt via a push notification

A computer-implemented method for sending transaction receipt details for a user-initiated transaction, the method comprising:

• receiving, from an issuer server, an approval message approving the user-initiated transaction request and transaction receipt details indicating a completion of the user-initiated transaction request, the user-initiated transaction request having corresponding transaction request details including a unique device identifier identifying a payment device that has been used to initiate the user-initiated transaction request;
• encrypting the transaction receipt details to provide encrypted transaction receipt details;
• providing, to the payment device identified by the unique device identifier, the encrypted transaction receipt details;
• generating a unique transaction identifier identifying the user-initiated transaction, the unique transaction identifier being part of the transaction receipt details;
• generating an encryption key to encrypt the transaction receipt details based on the unique device identifier identifying the payment device;
• applying an encryption algorithm to the transaction receipt details;
• aggregating a plurality encryption keys into a table of encryption keys;
• and
• storing the table of encryption keys into a database.

A computer-implemented method for sending transaction receipt details for a user-initiated transaction, the method comprising:

• receiving, by a processor, a user-initiated transaction request having transaction request details indicating a product to be purchased;
• receiving, by the processor, an encrypted transaction receipt, the transaction receipt including transaction request details;
• generating, by the processor, a decryption key to decrypt the encrypted transaction receipt;
• and
• displaying the transaction receipt including the transaction request details.