Accelerator trustworthiness

A system comprising:

• an accelerator with executable instructions that when executed cause the accelerator to:
• receive a workload offloaded from an application;
• execute the workload, wherein a workload output is generated by the accelerator as a result of the execution;
• receive a security sequence number and a hash from the application;
• encrypt a unique state hash of the accelerator, wherein the unique state hash is a hash of the security sequence number incremented by one concatenated with an internal state of the accelerator;
• send the workload output and the encrypted unique state hash of the accelerator to the application;
• and
• when the hash from the application matches the encrypted unique state hash of the accelerator, generate a notification indicating that the accelerator can be trusted, the workload output is authentic and secured, and the accelerator generated the workload output.

A computer program product comprising:

• one or more computer readable storage media, and program instructions collectively stored on the one or more computer readable storage media, the program instructions for:
• receiving a workload offloaded form an application;
• executing the workload, wherein a workload output is generated by the accelerator as a result of the execution;
• receiving a security sequence number and a hash from the application;
• encrypting a unique state hash of the accelerator, wherein the unique state hash is a hash of the security sequence number incremented by one concatenated with an internal state of the accelerator;
• sending the workload output and the encrypted unique state hash of the accelerator to the application;
• and
• when the hash from the application matches the encrypted unique state hash of the accelerator, generating a notification indicating that the accelerator can be trusted, the workload output is authentic and secured, and the accelerator generated the workload output.