Method and system for authorization using a public ledger and encryption keys

1. A method for securely conveying a transaction message using a public ledger with minimal barrier to entry, comprising:

generating, by a generation module of a processing server, a data message, wherein the data message is a transaction message for a payment transaction and comprises one or more data values, where the transaction message is formatted for transmission and processing in a payment card processing network;

electronically transmitting, by a transmitting device of the processing server via the payment card processing network, a data signal superimposed with the generated data message to a first computing system having at least one encryption key;

applying, by the first computing system, one or more encryption algorithms to the generated data message using the at least one encryption key to generate an encrypted message;

transmitting, by the first computing system, the at least one encryption key to a third computing system different from the processing server, wherein the third computing system acts as a node in a blockchain network;

receiving, by a receiving device of the processing server from the first computing system, a data signal superimposed with the encrypted message, wherein the processing server does not receive the at least one encryption key;

appending, by the generation module of the processing server, an identification value to the encrypted message;

submitting, by the transmitting device of the processing server, the appended encrypted message to a second computing system using an Internet-based communication channel, wherein the second computing system is a node in the blockchain network;

adding, by the second computing system acting as a node in the blockchain network, the encrypted message as a new transaction in a new block of one or more transactions to be added to a blockchain associated with the blockchain network, wherein the appended identification value is a destination address associated with the third computing system acting as a node in the blockchain network for the new transaction;

retrieving, by the third computing system from the blockchain and based on the appended identification value, the encrypted message; and

decrypting, by the third computing system, the encrypted message with the at least one encryption key transmitted by the first computing system.

2. The method of claim 1 , wherein the identification value is associated with an issuing financial institution or credential authority involved in the related electronic transaction.

3. The method of claim 1 , wherein the processing server does not possess the at least one encryption key.

4. A system for securely conveying a transaction message using a public ledger with minimal barrier to entry, comprising:

a generation module of a processing server configured to generate a data message, wherein the data message is a transaction message for a payment transaction and comprises one or more data values, where the transaction message is formatted for transmission and processing in a payment card processing network;

a transmitting device of the processing server configured to electronically transmit via the payment card processing network a data signal superimposed with the generated data message to a first computing system having at least one encryption key;

the first computing system configured to apply one or more encryption algorithms to the generated data message using the at least one encryption key to generate an encrypted message;

the first computing system configured to transmit the at least one encryption key to a third computing system different from the processing server, wherein the third computing system acts as a node in a blockchain network;

a receiving device of the processing server configured to receive from the first computing system a data signal superimposed with the encrypted message, wherein the processing server does not receive the at least one encryption key, wherein

the generation module of the processing server is further configured to append an identification value to the encrypted message, and

the transmitting device of the processing server is further configured to submit the appended encrypted message to a second computing system using an Internet-based communication channel, wherein the second computing system is a node in the blockchain network;

the second computing system acting as a node in the blockchain network configured to add the encrypted message as a new transaction in a new block of one or more transactions to be added to a blockchain associated with the blockchain network, wherein the appended identification value is a destination address associated with the third computing system acting as a node in the blockchain network for the new transaction;

the third computing system configured to retrieve from the blockchain and based on the appended identification value, the encrypted message; and

the third computing system configured to decrypt the encrypted message with the at least one encryption key transmitted by the first computing system.

5. The system of claim 4 , wherein the identification value is associated with an issuing financial institution or credential authority involved in the related electronic transaction.

6. The system of claim 4 , wherein the processing server does not possess the at least one encryption key.