openssl_sign
(PHP 4 >= 4.0.4)
openssl_sign -- Generate signature
Description
bool
openssl_sign ( string data, string signature, mixed priv_key_id)
警告 |
這個函數是
實驗性質的。這個函數的行為、名稱、
和關於此函數的任何其他文件
在未來PHP的發行中可能會在不通知的情況下改變。
使用此延伸需自行承擔風險。 |
成功回傳TRUE失敗回傳FALSE。
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.
範例 1. openssl_sign() example // $data is assumed to contain the data to be signed
// fetch private key from file and ready it
$fp = fopen("/src/openssl-0.9.6/demos/sign/key.pem", "r");
$priv_key = fread($fp, 8192);
fclose($fp);
$pkeyid = openssl_get_privatekey($priv_key);
// compute signature
openssl_sign($data, $signature, $pkeyid);
// free the key from memory
openssl_free_key($pkeyid); |
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See also openssl_verify().