(PHP 5 >= 5.6.0, PHP 7, PHP 8)
openssl_x509_fingerprint — Calculates the fingerprint, or digest, of a given X.509 certificate
$certificate, string $digest_algo = "sha1", bool $binary = false): string|false
openssl_x509_fingerprint() returns the digest of
certificate as a string.
x509See Key/Certificate parameters for a list of valid values.
digest_algoThe digest method or hash algorithm to use, e.g. "sha256", one of openssl_get_md_methods().
binary
When set to true, outputs raw binary data. false outputs lowercase hexits.
Returns a string containing the calculated certificate fingerprint as lowercase hexits unless binary is set to true in which case the raw binary representation of the message digest is returned.
Returns false on failure.
| Version | Description |
|---|---|
| 8.0.0 |
certificate accepts an OpenSSLCertificate instance now;
previously, a resource of type OpenSSL X.509 was accepted.
|