PHP: Phar::setSignatureAlgorithm - Manual

(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL phar >= 1.1.0)

Phar::setSignatureAlgorithm — Set the signature algorithm for a phar and apply it

Description

public function Phar::setSignatureAlgorithm(int $algo, ?string $privateKey = null): void

Note: This method requires the php.ini setting phar.readonly to be set to 0 in order to work for Phar objects. Otherwise, a PharException will be thrown.

set the signature algorithm for a phar and apply it. The signature algorithm must be one of Phar::MD5, Phar::SHA1, Phar::SHA256, Phar::SHA512, or Phar::OPENSSL.

Note that all executable phar archives have a signature created automatically, SHA1 by default. data tar- or zip-based archives (archives created with the PharData class) must have their signature created and set explicitly via Phar::setSignatureAlgorithm().

Parameters

algo

One of Phar::MD5, Phar::SHA1, Phar::SHA256, Phar::SHA512, or Phar::OPENSSL

privateKey

The contents of an OpenSSL private key, as extracted from a certificate or OpenSSL key file:

<?php
$private = openssl_get_privatekey(file_get_contents('private.pem'));
$pkey = '';
openssl_pkey_export($private, $pkey);
$p->setSignatureAlgorithm(Phar::OPENSSL, $pkey);
?>

See phar introduction for instructions on naming and placement of the public key file.

Return Values

No value is returned.

Changelog

See Also

• Phar::getSupportedSignatures() - Return array of supported signature types
• Phar::getSignature() - Return MD5/SHA1/SHA256/SHA512/OpenSSL signature of a Phar archive