Descriptionbool openssl_sign ( string data, string signature, mixed priv_key_id)
This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.
Returns TRUE on success or FALSE on failure. If successful the signature is returned in signature.
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.
See also openssl_verify().