Thanks Alex, I found that I can also do
issuerSha1 = issuer_cert.extensions.get_extension_for_class(SubjectKeyIdentifier).value.digest Cheers, Jose On Thu, 16 Sept 2021 at 17:57, Alex Gaynor <[email protected]> wrote: > You want Encoding.DER, not PEM. > > Alex > > On Thu, Sep 16, 2021 at 11:51 AM pepone.onrez <[email protected]> > wrote: > > > > Hi, > > > > Is there a way to compute the issuer key hash from the certificate > issuer? > > > > I tried with: > > > > public_key = issuer_cert.public_key().public_bytes( > > Encoding.PEM, > > PublicFormat.SubjectPublicKeyInfo) > > print(hashlib.sha1(public_key).digest()) > > > > This doesn't seem to be it, I was previously using oscrypto > > > > issuerSha1 = cert.asn1.public_key.sha1 > > > > is there a way to get this info with pyca/cryptography? > > > > Cheers, > > Jose > > _______________________________________________ > > Cryptography-dev mailing list > > [email protected] > > https://mail.python.org/mailman/listinfo/cryptography-dev > > > > -- > All that is necessary for evil to succeed is for good people to do nothing. > _______________________________________________ > Cryptography-dev mailing list > [email protected] > https://mail.python.org/mailman/listinfo/cryptography-dev >
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