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A piece of data used in public key cryptography (specifically public key infrastructures) that contains identifying information (i.e. email address or web address), a hash of a public key, and a digital signature that authenticates the data in the certificate. For questions specifically about [x509], [certificate-authority], or [public-key-infrastructure], please use those tags.

2 votes

Certificate SHA1 Thumbprint reported as a vulnerability

If thumbprint is calculated after the certificate is already signed it should not be a problem. And last I checked, SHA-1 is still resistant to pre-image and second pre-image attacks
Manish Adhikari's user avatar
1 vote

Authenticating root certificate

EDIT: Digital certificates by themselves do not authenticate anyone. They are never meant to be secret in the first place. …
Manish Adhikari's user avatar