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cary205/sha256 hash

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Created March 16, 2023 09:46
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Generating SHA256 hash of a public key from remote server certificate
Raw
sha256 hash
Creating certificate from remote URL and writing to file (mycertfile.pem)
openssl s_client -showcerts -connect gist.github.com:443 </dev/null 2>/dev/null|openssl x509 -outform PEM >mycertfile.pem
Generating SHA256 hash of public key from a certificate (mycertfile.pem)
openssl x509 -in mycertfile.pem -pubkey -noout | openssl rsa -pubin -outform der | openssl dgst -sha256 -binary | openssl enc -base64
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