openssl_x509_fingerprint

Function • Params and return types changed in PHP 8.0

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

PHP 5.3-5.5
PHP 5.6
Added
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2
PHP 8.3
PHP 8.4
PHP 8.5

openssl_x509_fingerprint Function synopsis

openssl_x509_fingerprint(
    OpenSSLCertificate|string $certificate,
    string $digest_algo = "sha1",
    bool $binary = false
  ): string|false

Parameters

$certificate

TypeOpenSSLCertificate|string

$digest_algo

OptionalTypestringDefault value"sha1"

The digest method or hash algorithm to use, e.g. "sha256", one of openssl_get_md_methods.

$binary

OptionalTypeboolDefault valuefalse

When set to true, outputs raw binary data. false outputs lowercase hexits.

Return value

Typestring|false

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.

Changes to the openssl_x509_fingerprint Function

PHP 8.0

  • Return type added: string|false
  • Parameter name of parameter #1 changed: $x509 to $certificate
  • Parameter type added for parameter #1 ($certificate): OpenSSLCertificate|string
  • Parameter name of parameter #2 changed: $method to $digest_algo
  • Parameter type added for parameter #2 ($digest_algo): string
  • Parameter default value added for position #2 ($digest_algo): "sha1"
  • Parameter name of parameter #3 changed: $raw_output to $binary
  • Parameter type added for parameter #3 ($binary): bool
  • Parameter default value added for position #3 ($binary): false
  openssl_x509_fingerprint(
-     $x509,
+     OpenSSLCertificate|string $certificate,
-     $method,
+     string $digest_algo = "sha1",
-     $raw_output
+     bool $binary = false
-   )
+   ): string|false

PHP 5.6

  • Function added

openssl_x509_fingerprint Function Availability

PHP VersionAvailability
PHP 8.5Future Release Yes
PHP 8.4Upcoming Release Yes
PHP 8.3Supported (Latest) Yes
PHP 8.2Supported Yes
PHP 8.1Security-Fixes Only Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported No
PHP 5.4Unsupported No
PHP 5.3Unsupported No