Hi all

when running the benchmark on my new component, the Integrity Digest
Cache, I ran into a serious performance issue.

The benchmark is extending a TPM PCR with 12313 entries of the IMA
measurement list, and calculating the time elapsed for the operation.

Without TPM HMAC: 102.8 seconds

With TPM HMAC: 1941.71 seconds


Do you have already an idea on how to improve the situation?

Thanks

Roberto


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