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tpm-v2: allow algorithm name to be configured for pcr_read and pcr_extend

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For pcr_read and pcr_extend commands allow the digest algorithm to be
specified by an additional argument. If not specified it will default to
SHA256 for backwards compatibility.

Additionally update test_tpm2.py for the changes in output in pcr_read
which now shows the algo and algo length in the output.

A follow-on to this could be to extend all PCR banks with the detected
algo when the <digest_algo> argument is 'auto'.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Tim Harvey
2024-05-25 13:00:49 -07:00
committed by Ilias Apalodimas
parent 954b95e77e
commit 89aa8463cd
2 changed files with 36 additions and 15 deletions
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2
test/py/tests/test_tpm2.py
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@@ -257,7 +257,7 @@ def test_tpm2_pcr_read(u_boot_console):
updates = int(re.findall(r'\d+', str)[0])
# Check the output value
assert 'PCR #10 content' in read_pcr
assert 'PCR #10 sha256 32 byte content' in read_pcr
assert '00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00' in read_pcr
@pytest.mark.buildconfigspec('cmd_tpm_v2')