Granted Patent B1

US 12,353,525 · App. 18/644,379 · Granted Jul 8, 2025

Inventors: Francois Jacques Malassenet (Raleigh, NC); Glenn Daniel Sidle (Raleigh, NC)

Assignee: GSFM LLC

G06F21/14G06F9/30036G06F21/52G06F21/75H04L9/002H04L2209/16

Abstract

Claims (95)

1. A computer implemented method comprising:

receiving one or more obfuscated and encrypted program instructions that implement an obfuscated and encrypted algorithm having fixed obfuscated and encrypted coefficients, wherein:

the one or more obfuscated and encrypted program instructions are configured for:

receiving one or more ciphertext input data;

providing one or more ciphertext output data; and

implementing obfuscated and encrypted versions of one or more plaintext program instructions that implement a plaintext algorithm having fixed plaintext coefficients; wherein:

the one or more plaintext program instructions are configured for:

 receiving one or more plaintext input data; and

 providing one or more plaintext output data;

the one or more ciphertext input data is an encrypted version of the one or more plaintext input data; and

the one or more ciphertext output data is an encrypted version of the one or more plaintext output data;

and

the one or more obfuscated and encrypted program instructions are an encrypted version of the one or more plaintext program instructions using one or more program instruction encryption keys;

receiving one or more program instruction encryption update keys, wherein:

the one or more program instruction encryption update keys are configured for updating the one or more obfuscated and encrypted program instructions into one or more updated obfuscated and encrypted program instructions for updating and securing the plaintext algorithm, or obfuscated and encrypted algorithm;

the one or more updated obfuscated and encrypted program instructions are configured for:

receiving one or more updated ciphertext input data; and

producing one or more updated ciphertext output data, wherein the one or more updated ciphertext input data is an encrypted version of the one or more plaintext input data;

and

the one or more updated ciphertext output data is an encrypted version of the one or more plaintext input data;

executing an update operation on the obfuscated and encrypted instructions using the one or more program instruction encryption update keys to create one or more updated obfuscated and encrypted instructions, wherein:

the one or more updated obfuscated and encrypted instructions comprise fixed updated obfuscated and encrypted coefficients; and

the fixed updated obfuscated and encrypted coefficients are configured for implementing an updated obfuscated and encrypted version of the plaintext algorithm;

and

storing the fixed updated obfuscated and encrypted coefficients.

2. The computer implemented method of claim 1 , wherein the one or more program instruction encryption update keys are transmitted from a server using an authentication and encryption protocol.

3. The computer implemented method of claim 1 , further comprising receiving one or more input data encryption keys, wherein the input data encryption keys are configured to secure the one or more plaintext input data and create the one or more ciphertext input data from the one or more plaintext input data.

4. The computer implemented method of claim 3 , further comprising receiving one or more input data encryption update keys, wherein:

the one or more input data encryption update keys are configured to create one or more new input data encryption keys from the one or more input data encryption keys; and

the new input data encryption keys are configured to create the one or more updated ciphertext input data from the one or more plaintext input data.

5. The computer implemented method of claim 1 , further comprising receiving one or more input data update encryption keys, wherein the input data update encryption keys are configured to create the one or more updated ciphertext input data from the one or more ciphertext input data.

6. The computer implemented method of claim 1 , further comprising receiving one or more output data decryption keys, wherein the output data decryption keys are configured to create the one or more plaintext output data from the one or more ciphertext output data.

7. The computer implemented method of claim 6 , further comprising receiving one or more output data decryption update keys, wherein:

the one or more output data decryption update keys are configured to create one or more new output data decryption keys from the one or more output data decryption keys; and

the new output data decryption keys are configured to create the one or more plaintext output data from the one or more updated ciphertext output data.

8. The computer implemented method of claim 1 , further comprising receiving one or more output data update decryption keys, wherein the output data update decryption keys are configured to create the one or more cipher output data from the one or more updated ciphertext output data.

9. The computer implemented method of claim 1 , wherein the obfuscated and encrypted computed implemented method is performed on at least one of a linear space, a cyclic group, a polynomial ring, and a polynomial ring over a finite field.

10. The computer implemented method of claim 1 , wherein the computer implemented method is performed by a plurality of processing units.

11. The computer implemented method of claim 1 , wherein the computer implemented method is performed in a multiparty computation configuration.

12. The computer implemented method of claim 1 , wherein at least one of the one or more program instruction encryption update keys expires based on at least one of number of uses, a time of use, and an erroneous authentication.

13. The computer implemented method of claim 1 , wherein at least one of the one or more obfuscated and encrypted program instructions integrate at least one of a preprocess step or a postprocess step.

14. The computer implemented method of claim 1 , wherein the computer implemented method is implemented on a client device.

15. The computer implemented method of claim 14 , wherein the client device is at least one of a personal computer, a workstation, a laptop, a tablet, a smartphone, a smart watch, and an Internet-of-Things device.

16. A computing device comprising:

a memory; and

at least one processor configured to perform a method, the method comprising:

receiving one or more obfuscated and encrypted program instructions that implement an obfuscated and encrypted algorithm having fixed obfuscated and encrypted coefficients, wherein:

the one or more obfuscated and encrypted program instructions are configured for:

receiving one or more ciphertext input data;

providing one or more ciphertext output data; and

implementing obfuscated and encrypted versions of one or more plaintext program instructions that implement a plaintext algorithm having fixed plaintext coefficients; wherein:

the one or more plaintext program instructions are configured for:

 receiving one or more plaintext input data; and

 providing one or more plaintext output data;

the one or more ciphertext input data is an encrypted version of the one or more plaintext input data; and

the one or more ciphertext output data is an encrypted version of the one or more plaintext output data;

and

the one or more obfuscated and encrypted program instructions are an encrypted version of the one or more plaintext program instructions using one or more program instruction encryption keys;

receiving one or more program instruction encryption update keys, wherein:

the one or more program instruction encryption update keys are configured for updating the one or more obfuscated and encrypted program instructions into one or more updated obfuscated and encrypted program instructions for updating and securing the plaintext algorithm, or obfuscated and encrypted algorithm;

the one or more updated obfuscated and encrypted program instructions are configured for:

receiving one or more updated ciphertext input data; and

producing one or more updated ciphertext output data, wherein the one or more updated ciphertext input data is an encrypted version of the one or more plaintext input data;

and

the one or more updated ciphertext output data is an encrypted version of the one or more plaintext input data;

executing an update operation on the obfuscated and encrypted instructions using the one or more program instruction encryption update keys to create one or more updated obfuscated and encrypted instructions, wherein:

the one or more updated obfuscated and encrypted instructions comprise fixed updated obfuscated and encrypted coefficients; and

the fixed updated obfuscated and encrypted coefficients are configured for implementing an updated obfuscated and encrypted version of the plaintext algorithm;

and

storing the fixed updated obfuscated and encrypted coefficients.

17. A non-transitory computer-readable storage medium, the non-transitory computer-readable storage medium storing computer instructions to be implemented on at least one computing device including at least one processor, the computer instructions when executed by the at least one processor cause the at least one computing device to perform a method, the method comprising:

receiving one or more obfuscated and encrypted program instructions that implement an obfuscated and encrypted algorithm having fixed obfuscated and encrypted coefficients, wherein:

the one or more obfuscated and encrypted program instructions are configured for:

receiving one or more ciphertext input data;

providing one or more ciphertext output data; and

implementing obfuscated and encrypted versions of one or more plaintext program instructions that implement a plaintext algorithm having fixed plaintext coefficients; wherein:

the one or more plaintext program instructions are configured for:

 receiving one or more plaintext input data; and

 providing one or more plaintext output data;

the one or more ciphertext input data is an encrypted version of the one or more plaintext input data; and

the one or more ciphertext output data is an encrypted version of the one or more plaintext output data;

and

the one or more obfuscated and encrypted program instructions are an encrypted version of the one or more plaintext program instructions using one or more program instruction encryption keys;

receiving one or more program instruction encryption update keys, wherein:

the one or more program instruction encryption update keys are configured for updating the one or more obfuscated and encrypted program instructions into one or more updated obfuscated and encrypted program instructions for updating and securing the plaintext algorithm, or obfuscated and encrypted algorithm;

the one or more updated obfuscated and encrypted program instructions are configured for:

receiving one or more updated ciphertext input data; and

producing one or more updated ciphertext output data, wherein the one or more updated ciphertext input data is an encrypted version of the one or more plaintext input data;

and

the one or more updated ciphertext output data is an encrypted version of the one or more plaintext input data;

executing an update operation on the obfuscated and encrypted instructions using the one or more program instruction encryption update keys to create one or more updated obfuscated and encrypted instructions, wherein:

the one or more updated obfuscated and encrypted instructions comprise fixed updated obfuscated and encrypted coefficients; and

the fixed updated obfuscated and encrypted coefficients are configured for implementing an updated obfuscated and encrypted version of the plaintext algorithm;

and

storing the fixed updated obfuscated and encrypted coefficients.

Assignments (1)

Continuity (3)

References Cited (72)