(PHP 5.6, PHP 7)
Calculates the fingerprint, or digest, of a given X.509 certificate
bool openssl_x509_fingerprint ( mixed $x509 [, string $hash_algorithm = "sha1" [, bool $raw_output = FALSE ]] )
openssl_x509_fingerprint() returns the digest of x509 as a string.
Parameters:
x509
See Key/Certificate parameters for a list of valid values.
hash_algorithm
The hash algorithm to use, e.g. "md5" or "sha1"
raw_output
When set to TRUE, outputs raw binary data. FALSE outputs lowercase hexits.
Returns:
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.
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