Patent ID: 11868275
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method comprising:
accessing ciphertext data within a register file;
accessing a local buffer within a functional unit to attempt to locate cleartext data corresponding to the ciphertext data within the register file;
decrypting, in response to not locating the cleartext data within the local buffer, the ciphertext data to receive the cleartext data using an encryption key and storing the cleartext data in the local buffer, wherein in response to locating the cleartext data within the local buffer, bypassing the decrypting;
processing, by the functional unit, the cleartext data from the local buffer to receive cleartext computation results;
encrypting the cleartext computation results to receive ciphertext computation results within the functional unit; and
storing the cleartext computation results in the local buffer and the ciphertext computation results back to the register file.