2a66b4c894
Some distributions have started phasing out SHA1, which breaks the systemd-measure test case in its current form. Let's make sure we can use SHA1 for signing beforehand to mitigate this. Spotted on RHEL 9, where SHA1 signatures are disallowed by [0]: ``` openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:2048 -out "/tmp/pcrsign-private.pem" ... openssl rsa -pubout -in "/tmp/pcrsign-private.pem" -out "/tmp/pcrsign-public.pem" writing RSA key /usr/lib/systemd/systemd-measure sign --current --bank=sha1 --private-key="/tmp/pcrsign-private.pem" --public-key="/tmp/pcrsign-public.pem" Failed to initialize signature context. ``` [0] https://gitlab.com/redhat/centos-stream/rpms/openssl/-/blob/c9s/0049-Selectively-disallow-SHA1-signatures.patch (cherry picked from commit d19e5540f20c78caa949ff33050b4a530cae1982)
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