最近在接 SDK 支付的时候遇到一个签名问题,文档里给了 php demo,我拿过来也跑通了,但是把签名算法换成 nodejs 怎么跑都不通,不知道为啥。麻烦大佬帮忙看看
private_key
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
要加密的数据
var data ={"appid":"301074772","waresid":1,"cporderid":"123412zxcvzasdfqwesdfdsrasdghj","price":0.01,"currency":"RMB","appuserid":"10123059","cpprivateinfo":"11qwe123r23q232111"}
php 代码
/**格式化公钥
* $priKey PKCS#1 格式的私钥串
* return pem 格式私钥, 可以保存为.pem 文件
*/
function formatPriKey($priKey) {
$fKey = "-----BEGIN RSA PRIVATE KEY-----\n";
$len = strlen($priKey);
for($i = 0; $i < $len; ) {
$fKey = $fKey . substr($priKey, $i, 64) . "\n";
$i += 64;
}
$fKey .= "-----END RSA PRIVATE KEY-----";
return $fKey;
}
function sign($data, $priKey) {
//转换为 openssl 密钥
$res = openssl_get_privatekey($priKey);
$content = json_encode($data);
//调用 openssl 内置签名方法,生成签名$sign
openssl_sign($content, $sign, $res, OPENSSL_ALGO_MD5);
//释放资源
openssl_free_key($res);
//base64 编码
$sign = base64_encode($sign);
return $sign;
}
php 得到的结果是:
YK5XuhB+ZhntOwm/riSCaCIqqLlrih+VgBRQa3H5VCUU6P/o38c+Q/UduQqFMQhLH7aZJ/z3ovSwgVxy+WFThGPthaQUPsLrALLZlReAcpuql28V8mD16WAnvxfY6R76jtdz4pF8gxNg4GeWXJXHc5M8RhInPeAai7F4gUlIbWI=
nodejs 代码如下:
function () {
data = JSON.stringify(data);
var p_key = '-----BEGIN RSA PRIVATE KEY-----\n';
var strLength = Math.ceil(key.length / 64);
for (var i = 0; i < strLength; i++) {
var temp = key.substr(64 * i, 64);
p_key += temp + '\n';
}
p_key += "-----END RSA PRIVATE KEY-----";
var sign = crypto.createSign('RSA-SHA256'); // 这里 SHA1 和 SHA256 都试了一直不对
var b = new Buffer(str);
sign.update(b);
return sign.sign(p_key, 'base64');
};
nodejs 结果:
veNheq8kz/OyphVRNwHqXYYWhFJ/pqqkwDyKPwg29ig1wlzoEAzTfvDAN7Eoe+RGUW41dvRO7RjKaPRFdzihglmBwPQMBzzIeLGcJgb1vF41UFwNGIPnAa9HDqcIBWOLzSf72Qe26x0Qa15R80ZSJO8ztXxzshcqC/BqkaFAnMY=
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