Method and system to facilitate securely processing a payment for an online transaction

A system to facilitate processing a payment for an online transaction, the system comprising:

• a payment processor to generate, based on a function of the transaction data, a transaction data identifier to identify transaction data, digitally signed by a merchant, received from a merchant server over a secure communication channel;
• and
• at least one server configured to:
• communicate the transaction data identifier from the payment processor to the merchant server over the secure communication channel;
• receive a request, digitally signed by the merchant, to process a payment from the merchant server, the request to process the payment including the transaction data identifier;
• responsive to receiving the request to process the payment, request user credentials from a user;
• receive and verify, at the payment processor, the user credentials from the user;
• process a payment using an account associated with the user credentials, the process including sending the payment from the payment processor to the merchant;
• generate a secure payment identifier to identify payment data associated with the payment, the payment data including a payment status;
• communicate the secure (payment identifier, digitally signed by the payment processor, to the merchant server;
• and
• receive a request, digitally signed by the merchant, for payment data over the secure communication channel from the merchant server, the request including the secure payment identifier.

A system to facilitate processing a payment for an online transaction, the system comprising:

• means for generating a transaction data identifier, digitally signed by the merchant, to identify the transaction data, by a payment processor, based on a function of transaction data, responsive to receiving the transaction data from a merchant server over a secure communication channel;
• means for communicating the transaction data identifier from the payment processor to the merchant server over the secure communication channel;
• means for receiving by the payment processor from the merchant server a request to process a payment, the request being digitally signed by the merchant and including the transaction data identifier;
• means for requesting user credentials from a user, responsive to receiving the request to process the payment from the merchant server;
• means, at the payment processor, for verifying the user credentials to establish an identity of the user, responsive to receiving user credentials from the user;
• means for processing a payment using an account associated with the user credentials, the means for processing a payment including means for the payment processor to send the payment to the merchant;
• and
• means for generating a secure payment identifier to identify payment data associated with the payment, the payment data including a payment status;
• means for communicating the secure payment identifier, digitally signed b the payment processor, to the merchant server;
• and
• means for receiving, by the e payment processor, a request, digitally signed by the merchant, for payment data over the secure communication channel from the merchant server, the request including the secure payment identifier.