Search certificates with public key

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Jun 22, 2020, 11:45:26 AM6/22/20

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Is there any way to search certificates with public key?

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Jun 22, 2020, 2:14:01 PM6/22/20

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Yes, you can search by SHA-1(SubjectPublicKeyInfo) or SHA-256(SubjectPublicKeyInfo). See the "Advanced..." options page (https://crt.sh/?a=1).

To calculate the SHA-256(SubjectPublicKeyInfo) of a certificate, you can do this:

openssl x509 -in your_certificate.pem -pubkey -noout | openssl pkey -pubin -outform der | sha256sum

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