SunshinePHP Developer Conference 2015

openssl_x509_fingerprint

(PHP 5.6)

openssl_x509_fingerprintCalculates the fingerprint, or digest, of a given X.509 certificate

Description

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.

Return Values

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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