CODEWITHSUNDEEP
sslopensslcertificatex509
TheKingOfHearts
TheKingOfHearts

Reputation: 1

OpenSSL X509 Verify Signature with CA

I have a root certificate which I created based on a previously provided keypair (private & public). The certificate is called Root CA in file rootca.crt.

I've now been tasked with verifying a given signature with the Root CA.

I'm fairly sure this needs to be done through X509 but I'm not familiar with the command? The signature which I need to verify was supplied in Base64 and I've decoded it and converted to binary, so I believe the final step I'm missing is an OpenSSL X509 verify command, but that doesn't seem to exist?

Any advice would be appreciated, cheers.

Upvotes: 0

Views: 3496

Answers (1)

frasertweedale
frasertweedale

Reputation: 5644

Use the openssl verify command.

openssl verify -CAfile rootca.crt certificate

See also the verify(1) man page.

Upvotes: 1

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