Blockchain based authentication

1. A method for blockchain based authentication, the method comprising:

receiving a request packet;

adding the request packet to a blockchain;

receiving a verifier registration packet;

creating a genesis block using the verifier registration packet as the genesis block;

creating a hash based on the added request packet and blockchain data, wherein an authentication history is used to create the hash, wherein the hash is a cumulative hash that begins with a genesis block and ends with the added request packet;

transmitting the hash to a user; and

receiving a verifier packet, wherein the verifier packet includes an authentication token generated by the user that incorporates the hash, wherein the hash is used as a basis of the authentication token, validating the hash and the authentication token by comparing the hash of all blocks in the blockchain up to and including a request block of the user with the hash in the authentication token; and

transmitting a successful authentication message to the user.

2. The method of claim 1 , further comprising:

receiving a user registration pocket.

3. The method of claim 1 , further comprising:

failing the validation of the hash and the authentication token; and

transmitting an unsuccessful authentication message to the user.

4. The method of claim 1 , wherein the request packet includes identification information of the user, a public key of the user, a nonce of the user and a digital signature of the user.

5. The method of claim 1 , wherein the authentication token includes the hash, a nonce, digital signatures, identifying information of the user and authentication restrictive information of the user.

6. A computer system for blockchain based authentication, comprising:

one or more processors, one or more computer-readable memories, one or more computer-readable tangible storage media, and program instructions stored on at least one of the one or more computer-readable tangible storage media for execution by at least one of the one or more processors via at least one of the one or more computer-readable memories, wherein the computer system is capable of performing a method comprising:

receiving a request packet;

adding the request packet to a blockchain;

receiving a verifier registration packet;

creating a genesis block using the verifier registration packet as the genesis block;

creating a hash based on the added request packet and blockchain data, wherein an authentication history is used to create the hash, wherein the hash is a cumulative hash that begins with a genesis block and ends with the added request packet;

transmitting the hash to a user; and

receiving a verifier packet, wherein the verifier packet includes an authentication token generated by the user that incorporates the hash, wherein the hash is used as a basis of the authentication token, validating the hash and the authentication token by comparing the hash of all blocks in the blockchain up to and including a request block of the user with the hash in the authentication token; and

transmitting a successful authentication message to the user.

7. The computer system of claim 6 , further comprising:

receiving a user registration packet.

8. The computer system of claim 6 , further comprising:

failing the validation of the hash and the authentication token; and

transmitting an unsuccessful authentication message to the user.

9. The computer system of claim 6 , wherein the request packet includes identification information of the user, a public key of the user, a nonce of the user and a digital signature of the user.

10. The computer system of claim 6 , wherein the authentication token includes the hash, a nonce, digital signatures, identifying information of the user and authentication restrictive information of the user.

11. A computer program product for blockchain based authentication, comprising:

one or more computer-readable tangible storage media and program instructions stored on at least one of the one or more computer-readable tangible storage media, the program instructions executable by a processor to cause the processor to perform a method comprising:

receiving a request packet;

adding the request packet to a blockchain;

receiving a verifier registration packet;

creating a genesis block using the verifier registration packet as the genesis block;

creating a hash based on the added request packet and blockchain data, wherein an authentication history is used to create the hash, wherein the hash is a cumulative hash that begins with a genesis block and ends with the added request packet;

transmitting the hash to a user; and

receiving a verifier packet, wherein the verifier packet includes an authentication token generated by the user that incorporates the hash, wherein the hash is used as a basis of the authentication token, validating the hash and the authentication token by comparing the hash of all blocks in the blockchain up to and including a request block of the user with the hash in the authentication token; and

transmitting a successful authentication message to the user.

12. The computer program product of claim 11 , further comprising:

receiving a user registration packet.

13. The computer program product of claim 11 , further comprising:

failing the validation of the hash and the authentication token; and

transmitting an unsuccessful authentication message to the user.

14. The computer program product of claim 11 , wherein the request packet includes identification information of the user, a public key of the user, a nonce of the user and a digital signature of the user.