Tracking and verification of physical assets

Patent metadata

Field	Value
Publication number	US-11360963-B2
Application number	US-201916581036-A
Country	US
Kind code	B2
Filing date	Sep 24, 2019
Priority date	Sep 24, 2019
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

Abstract

An example operation may include one or more of receiving a unique identifier and a security value from an object, retrieving a previously stored security value of the object from a database based on the received unique identifier, determining that the object is verified based on the received security value and the previously stored security value, and modifying the previously stored security value to generate a modified security value and transmitting the modified security value to the database.

First claim

What is claimed is:

1. A computing system comprising:
a network interface configured to receive a unique identifier and a security value that are obtained from a storage device associated with an object; and
a processor configured to retrieve a previously stored security value of the object from a blockchain ledger based on the unique identifier being paired with the previously stored security value on the blockchain ledger, determine that the object is verified based on the received security value from the blockchain ledger being a match to the previously stored security value, and execute a blockchain transaction on the blockchain ledger to transfer the object to another participant of the blockchain in response to the verification,
wherein the processor is further configured to replace the previously stored security value on the blockchain ledger with a modified security value mapped to the unique identifier.

2. The computing system of claim 1 , further comprising a reader configured to read, via a radio frequency, the unique identifier and the security value from a storage device attached to the object.

3. The computing system of claim 1 , wherein the processor is configured to incrementally change a value of the previously stored security value to generate the modified security value.

4. The computing system of claim 1 , wherein the processor is configured to determine that the object is verified in response to a determination that the previously stored security value remains unchanged with respect to the received security value.

5. The computing system of claim 1 , wherein the processor is further configured to control the network interface to transmit the modified security value to the object and receive the modified security value from the object with a signature of the object added thereto.

6. The computing system of claim 5 , wherein the processor is further configured to control the network interface to transmit the modified security value with the signature created by the object and added thereto, in response to verification of the signature created by the object and added to the modified security value.

7. The computing system of claim 1 , wherein the processor is further configured to control the network interface to transmit a transfer request of the object with the modified security value included therein.

8. The computing system of claim 1 , wherein the processor is further configured to sign the modified security value with a client key prior to replacing the previously stored security value with the modified security value on the blockchain ledger.

9. A method comprising:
receiving a unique identifier and a security value that are obtained from a storage device associated with an object;
retrieving a previously stored security value of the object from a blockchain ledger based on the unique identifier being paired with the previously stored security value on the blockchain ledger;
determining that the object is verified based on the received security value from the blockchain ledger being a match to the previously stored security value;
execute a blockchain transaction on the blockchain ledger to transfer the object to another participant of the blockchain in response to the verification; and
replacing the previously stored security value on the blockchain ledger with a modified security value mapped to the unique identifier.

10. The method of claim 9 , wherein the receiving comprises reading, via a radio frequency, the unique identifier and the security value from a storage device attached to the object.

11. The method of claim 9 , wherein the modifying comprises incrementally changing a value of the previously stored security value to generate the modified security value.

12. The method of claim 9 , wherein the determining comprises determining the object is verified in response to determining that the previously stored security value remains unchanged with respect to the received security value.

13. The method of claim 9 , further comprising transmitting the modified security value to the object and receiving the modified security value from the object with a signature of the object added thereto.

14. The method of claim 13 , wherein the transmitting comprises transmitting the modified security value with the signature created by the object and added thereto, in response to verification of the signature created by the object and added to the modified security value.

15. The method of claim 9 , wherein the transmitting comprises transmitting a transfer request of the object with the modified security value included therein.

16. The method of claim 9 , further comprising signing the modified security value with a client key prior to replacing the previously stored security value with the modified security value on the blockchain ledger.

17. A non-transitory computer readable medium comprising instructions, that when read by a processor, cause the processor to perform a method comprising:
receiving a unique identifier and a security value that are obtained from a storage device associated with an object;
retrieving a previously stored security value of the object from a blockchain ledger based on the unique identifier being paired with the previously stored security value on the blockchain ledger;
determining that the object is verified based on the received security value from the blockchain ledger being a match to the previously stored security value;
execute a blockchain transaction on the blockchain ledger to transfer the object to another participant of the blockchain in response to the verification; and
replacing the previously stored security value on the blockchain ledger with a modified security value mapped to the unique identifier.

18. The non-transitory computer-readable medium of claim 17 , wherein the receiving comprises reading, via a radio frequency, the unique identifier and the security value from a storage device attached to the object.

19. The non-transitory computer-readable medium of claim 17 , wherein the modifying comprise incrementally changing a value of the previously stored security value to generate the modified security value.

20. The non-transitory computer-readable medium of claim 17 , wherein the determining comprises determining the object is verified in response to determining that the previously stored security value remains unchanged with respect to the received security value.

Assignees

• IBM

Inventors

• Werner Klaus
• Lang Jakob Christopher
• Schmidbauer Joerg
• Nunez Mencias Angel

Classifications

• H04L9/0897

  involving additional devices, e.g. trusted platform module [TPM], smartcard or USB · CPC title

• H04L9/3239

  involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD · CPC title

• H04L9/3271

  using challenge-response · CPC title

• G06F21/64 Primary

  Protecting data integrity, e.g. using checksums, certificates or signatures · CPC title

• H04L9/3247

  involving digital signatures · CPC title