php Rsa签名算法

一：加签验签

class RsaController extends Controller{
    
    /**
     * RSA签名
     * @param $data 待签名数据
     * @param $private_key 私钥字符串
     * return 签名结果
     */
    public function rsaSign($data, $private_key) {
            
            // $search = [
                    // "-----BEGIN RSA PRIVATE KEY-----",
                    // "-----END RSA PRIVATE KEY-----",
                    // "
",
                    // "
",
                    // "
"
            // ];

            // $private_key=str_replace($search,"",$private_key);
            // $private_key=$search[0] . PHP_EOL . wordwrap($private_key, 64, "
", true) . PHP_EOL . $search[1];
            $res=openssl_get_privatekey($private_key);

            if($res)
            {
                    openssl_sign($data, $sign,$res);
                    openssl_free_key($res);
            }else {
                    exit("私钥格式有误");
            }
            $sign = base64_encode($sign);
            return $sign;
    }

    /**
     * RSA验签
     * @param $data 待签名数据
     * @param $public_key 公钥字符串
     * @param $sign 要校对的的签名结果
     * return 验证结果
     */
    public function rsaCheck($data, $public_key, $sign)  {
            // $search = [
                    // "-----BEGIN PUBLIC KEY-----",
                    // "-----END PUBLIC KEY-----",
                    // "
",
                    // "
",
                    // "
"
            // ];
            // $public_key=str_replace($search,"",$public_key);
            // $public_key=$search[0] . PHP_EOL . wordwrap($public_key, 64, "
", true) . PHP_EOL . $search[1];
            $res=openssl_get_publickey($public_key);
            if($res)
            {
                    $result = (bool)openssl_verify($data, base64_decode($sign), $res);
                    openssl_free_key($res);
            }else{
                    exit("公钥格式有误!");
            }
            return $result;
    }    
}

View Code

//Rsa SHA256 $priKey = file_get_contents(__DIR__.'/file.pem'); $privKeyId = openssl_pkey_get_private($priKey); $signature = ''; $algo = "SHA256"; openssl_sign($data, $signature, $privKeyId, $algo); openssl_free_key($privKeyId); $bs = base64_encode($signature);

//Rsa SHA1 or Rsa $priKey = file_get_contents(__DIR__.'/file.pem'); $privKeyId = openssl_pkey_get_private($priKey); $signature = ''; openssl_sign($data, $signature, $privKeyId); openssl_free_key($privKeyId); $bs = base64_encode($signature);

/** *验签 * @param $data 待验签数据 * @param $sign 签名字符串(之前签名生成的$bs) * @param $pubKey 公钥字符串 * @return bool */ $pubKey = file_get_contents(__DIR__.'/pub.key'); //读取公钥 $pKey = checkSign($pubKey,$sign ,$data); function checkSign($pubKey,$sign,$toSign){ $publicKeyId = openssl_pkey_get_public($pubKey); $result = openssl_verify($toSign, base64_decode($sign), $publicKeyId); openssl_free_key($publicKeyId); return $result === 1 ? true : false; }

$encrypt_data = encrypt($data,$public_key); $decrypt_data = decrypt($encrypt_data,$private_key); // 公钥加密数据 function encrypt($originalData,$pubkey){ $crypto = ''; foreach (str_split($originalData, 117) as $chunk) { openssl_public_encrypt($chunk, $encryptData, $pubkey); $crypto .= $encryptData; } return base64_encode($crypto); } // 公钥解密数据 function decrypt($encryptData,$privkey){ $crypto = ''; foreach (str_split(base64_decode($encryptData), 128) as $chunk) { openssl_private_decrypt($chunk, $decryptData, $privkey); $crypto .= $decryptData; } return $crypto; }

php Rsa签名算法

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