Method and system for verifying integrity of a digital asset using a distributed hash table and a peer-to-peer distributed ledger

1. A computer-implemented method of verifying integrity of a computer software for installation using a distributed hash table and a peer-to-peer distributed ledger, the method comprising:

determining a metadata (M) associated with a transaction record stored on the peer-to-peer distributed ledger;

determining an indication of an entry stored on the distributed hash table from the metadata (M);

determining a third hash value (H 3 ) based on the computer software;

determining a fourth hash value (H 4 ) from the entry on the distributed hash table;

comparing the third hash value (H 3 ) and the fourth hash value (H 4 ); and

verifying the integrity of the computer software based on the comparing of the third hash value (H 3 ) and the fourth hash value (H 4 ).

2. The method of claim 1 , wherein comparing the third hash value (H 3 ) and the fourth hash value (H 4 ) comprises determining whether the third hash value (H 3 ) and the fourth hash value (H 4 ) match.

3. The method of claim 1 , wherein before determining the metadata (M), the method comprises:

determining a second user public key (PU 2 ) associated with a second user (U 2 ) from a transaction record stored on the peer-to-peer distributed ledger;

determining a second public key (P 2 ) associated with the second user (U 2 ) from an entry stored on the distributed hash table;

comparing the second user public key (PU 2 ) and the second public key (P 2 ); and

verifying the ownership of the computer software based on the comparing of the second user public key (PU 2 ) and the second public key (P 2 ).

4. The method of claim 3 , wherein comparing the second user public key (PU 2 ) and the second public key (P 2 ) comprises determining whether the second user public key (PU 2 ) and the second public key (P 2 ) match.

5. The method of claim 4 , wherein before determining the second user public key (PU 2 ) the method comprises:

determining a data (D 1 ) associated with the computer software;

determining a first hash value (H 1 ) of the computer software;

determining a second hash value (H 2 ) based on the data (D 1 ) and the computer software;

sending, over a communications network, the data (D 1 ), the first hash value (H 1 ) and the second hash value (H 2 ) to an entry for storage in the distributed hash table, wherein the second hash value (H 2 ) is a key of a key-value pair and the data (D 1 ) and the first hash value (H 1 ) are a value in the key-value pair; and

determining the metadata (M) comprising the second hash value (H 2 ) for storage on the peer-to-peer distributed ledger.

6. The method of claim 1 , wherein the computer software comprises a header and a body.

7. The method of claim 6 , wherein the third hash value (H 3 ) is determined from the body of the computer software.

8. The method of claim 6 , wherein the header comprises a hash value of the body of the computer software.

9. The method of claim 6 , wherein the header further comprises a second hash value (H 2 ).

10. The method of claim 6 , wherein the body of the computer software comprises an executable of the computer software.

11. The method of claim 10 , further comprising determining a second user public key (PU 2 ) and wherein before determining the second user public key (PU 2 ), the method comprises encrypting the executable of the computer software.

12. The method of claim 11 , wherein encrypting the executable of the computer software comprises:

determining a generator value (GV);

determining a second user second public key (P 2 U 2 ) based on the second user public key (PU 2 ) and the generator value (GV), wherein the second user second public key (P 2 U 2 ) forms a cryptographic pair with a second user second private key (V 2 U 2 );

determining a first user second public key (P 2 U 1 ) based on a first user public key (PU 1 ) and the generator value (GV), wherein the first user second public key (P 2 U 1 ) forms a cryptographic pair with a first user second private key (V 2 U 1 );

determining a common secret (CS) based on the second user second public key (P 2 U 2 ) and the first user second private key (V 2 U 1 ); and

encrypting the executable of the computer software with the common secret (CS) to generate an encrypted executable of the computer software.

13. The method of claim 12 , wherein the encrypted executable of the computer software is decrypted by:

determining the common secret (CS) based on the first user second public key (P 2 U 1 ) and the second user second private key (V 2 U 2 ); and

decrypting the executable of the computer software with the common secret (CS) to generate a decrypted executable of the computer software.

14. The method of claim 13 , further comprising:

installing the decrypted executable of the computer software on a processing device associated with the second user (U 2 ).

15. The method of claim 14 , further comprising:

determining an activation key (AK) from the second user (U 2 ); and

executing instructions of the decrypted executable of the computer software based on the activation key (AK).

16. A computer software program comprising machine-readable instructions to cause a processing device to implement the method of claim 1 .

17. A computer system for verifying integrity of a computer software for installation using a distributed hash table and a peer-to-peer distributed ledger, the computer system comprising a processing device associated with a node on a peer-to-peer network of nodes, configured to:

determine a metadata (M) associated with a transaction record stored on the peer-to-peer distributed ledger;

determine an indication of the location of an entry on the distributed hash table from the metadata (M);

determine a third hash value (H 3 ) based on the computer software;

determine a fourth hash value (H 4 ) from the entry on the distributed hash table;

compare the third hash value (H 3 ) and the fourth hash value (H 4 ); and

verify the integrity of the computer software based on a comparison of the third hash value (H 3 ) and the fourth hash value (H 4 ).