(PHP 5 >= 5.6.0, PHP 7, PHP 8)
openssl_x509_fingerprint — Calculates the fingerprint, or digest, of a given X.509 certificate
$x509
, string $hash_algorithm = "sha1"
, bool $raw_output = false
) : string
openssl_x509_fingerprint() returns the digest of
x509 as a string.
x509See Key/Certificate parameters for a list of valid values.
hash_algorithmThe digest method or hash algorithm to use, e.g. "sha256", one of openssl_get_md_methods().
raw_output
When set to true, outputs raw binary data. false outputs lowercase hexits.
Returns a string containing the calculated certificate fingerprint as lowercase hexits unless raw_output is set to true in which case the raw binary representation of the message digest is returned.
Returns false on failure.