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SSL encryption, decryption, verification, and signature methods under PHP (super simple)
SSL encryption, decryption, verification, and signature methods under PHP (super simple)
Nov 09, 2016 am 09:52 AM
This article mainly introduces the SSL encryption, decryption, verification, and signature methods under PHP. The method is very simple. Everyone is welcome to read it.
It is super simple and relies on the OpenSSL extension. No more nonsense here. I will directly provide the code
Signature :
function sign($data) {
//讀取私鑰文件
$priKey = file_get_contents('key/rsa_private_key.pem');
//轉(zhuǎn)換為openssl密鑰，必須是沒有經(jīng)過pkcs8轉(zhuǎn)換的私鑰
$res = openssl_get_privatekey($priKey);
//調(diào)用openssl內(nèi)置簽名方法，生成簽名$sign
openssl_sign($data, $sign, $res);
//釋放資源
openssl_free_key($res);
return $sign;
}Verification :
function verify($data, $sign) {
//讀取支付寶公鑰文件
$pubKey = file_get_contents('key/alipay_public_key.pem');
//轉(zhuǎn)換為openssl格式密鑰
$res = openssl_get_publickey($pubKey);
//調(diào)用openssl內(nèi)置方法驗(yàn)簽，返回bool值
$result = (bool)openssl_verify($data, $sign, $res);
//釋放資源
openssl_free_key($res);
return $result;Decryption
function decrypt($content) {
//讀取商戶私鑰
$priKey = file_get_contents('key/rsa_private_key.pem');
//轉(zhuǎn)換為openssl密鑰，必須是沒有經(jīng)過pkcs8轉(zhuǎn)換的私鑰
$res = openssl_get_privatekey($priKey);
//聲明明文字符串變量
$result = '';
//循環(huán)按照128位解密
for($i = 0; $i < strlen($content)/128; $i++ ) {
$data = substr($content, $i * 128, 128);
//拆分開長度為128的字符串片段通過私鑰進(jìn)行解密，返回$decrypt解析后的明文
openssl_private_decrypt($data, $decrypt, $res);
//明文片段拼接
$result .= $decrypt;
}
//釋放資源
openssl_free_key($res);
//返回明文
return $result;
}
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