Patent ID: 11895231
Assignee: VISA INTERNATIONAL SERVICE ASSOCIATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. The method of claim 1, further comprising:
transmitting the first commitment and the second commitment to each of a plurality of additional cryptographic devices, the plurality of additional cryptographic devices storing a third plurality of secret shares that are generated from the first secret value and a fourth plurality of secret shares that are generated from the second secret value;
receiving, from the plurality of additional cryptographic devices, a plurality of additional partial computations, wherein each of the plurality of additional partial computations was generated by a respective one of the plurality of additional cryptographic devices using a respective third partial computation and a respective fourth partial computation, wherein the respective third partial computation is generated using a respective third secret share and the first commitment, and wherein the respective fourth partial computation is generated using a respective fourth secret share and the second commitment,
generating the cryptographic key based on the additional plurality of partial computations; and
decrypting the ciphertext using the cryptographic key to produce the message.