PHP RSA MD5 加签以及验证签名

最新推荐文章于 2025-01-04 10:47:56 发布

原创最新推荐文章于 2025-01-04 10:47:56 发布 · 561 阅读

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#php #java #开发语言

public function isValid($data = '', $signature = '', $publicKey = '')
{
    if (empty($data) || empty($signature)) {
        return false;
    }
    $public_content = wordwrap($publicKey, 64, "\n", true);
    $public_key = "-----BEGIN PUBLIC KEY-----\r\n" . $public_content . "\r\n-----END PUBLIC KEY-----";
    if (empty($public_key)) {
        echo "Public Key error!";
        return false;
    }
    $pkeyid = openssl_get_publickey($public_key);
    if (empty($pkeyid)) {
        echo "public key resource identifier False!";
        return false;
    }

    $ret = openssl_verify($data, base64_decode($signature), $pkeyid, OPENSSL_ALGO_MD5);
    if ($ret === 1) {
        echo "success";
        return true;
    } else {
        echo "fail";
        return false;
    }
}

public function sign($data = '', $private_key)
{

    $private_content = wordwrap($private_key, 64, "\n", true);

    $key = "-----BEGIN RSA PRIVATE KEY-----\r\n" . $private_content . "\r\n-----END RSA PRIVATE KEY-----";

    $private_key = openssl_get_privatekey($key);

    openssl_sign($data, $sign, $private_key, OPENSSL_ALGO_MD5);

    openssl_free_key($private_key);

    return base64_encode($sign); // 加密后数据转换为base64
}