我正在尝试在C#上复制JavaScript哈希,但是我得到了不同的结果。 JavaScript上的代码是:
var key = "35353535353535366363636363",
credentials = "web:web",
shaObj = new jsSHA(credentials, "ASCII"),
hash = shaObj.getHMAC(key, "HEX", "SHA-1", "HEX"); // key and generated hash are hex values
alert("Hash: " + hash);
它返回以下哈希:
60c9059c9be9bcd092e00eb7f03492fa3259f459
我正在尝试的C#代码是:
key = "35353535353535366363636363";
string credentials = "web:web";
var encodingCred = new System.Text.ASCIIEncoding();
var encodingKey = new System.Text.ASCIIEncoding();
byte[] keyByte = encodingKey.GetBytes(key);
byte[] credentialsBytes = encodingCred.GetBytes(credentials);
using (var hmacsha1 = new HMACSHA1(keyByte))
{
byte[] hashmessage = hmacsha1.ComputeHash(credentialsBytes);
string hash = BitConverter.ToString(hashmessage).Replace("-", string.Empty).ToLower();
Console.WriteLine("HASH: " + hash);
}
它返回以下哈希:
5f7d27b9b3ddee33f85f0f0d8df03540d9cdd48b
我怀疑问题可能是我将'key'作为ASCII而不是HEX传递。经过数小时的研究,我无法找出必要的改变以使其发挥作用。非常感谢任何帮助。
答案 0 :(得分:3)
区别在于key
s如何转换为“ bytes 。”
JavaScript代码段正在将String
解析为"HEX"
,这应该会导致:
[ 0x35, 0x35, ..., 0x36, ... ]
虽然C#代码段只是抓取Char
中每个String
的ASCII值,但结果是:
{ 0x33, 0x35, 0x33, 0x35, ..., 0x33, 0x36, ... }
// "3" => U+0033
// "5" => U+0035
// "6" => U+0036
要匹配,C#版本还需要将String
解析为十六进制。一种方法是使用StringToByteArray()
, as defined in another SO post:
// ...
byte[] keyByte = StringToByteArray(key);
// ...
60c9059c9be9bcd092e00eb7f03492fa3259f459