openssl_sign()

openssl_sign - Generate signature

Syntax

bool openssl_sign (string $data, string &$signature, mixed $priv_key_id, int $signature_alg)

Arguments

• data
• signature - If the call was successful the signature is returned in signature.
• priv_key_id
• signature_alg - For more information see the list of Signature Algorithms.

Description

openssl_sign() computes a signature for the specified data by using SHA1 for hashing followed by encryption using the private key associated with priv_key_id. Note that the data itself is not encrypted.

Version

PHP 4.0.4, 5

Return value

Returns TRUE on success or FALSE on failure.