Java中的HMAC SHA1签名

问题描述

我正在尝试与TransUnion Web服务进行交互，我需要提供一个HMAC-SHA1签名来访问它。

I am trying to interface with a TransUnion web service and I need to provide a HMAC-SHA1 signature to access it.

此示例位于TransUnion文档中：

输入 SampleIntegrationOwner2008-11-18T19：14：40.293Z 带安全
键 xBy / 2CLudnBJOxOtDhDRnsDYq9HTuDVr2uCs3FMzoxXEA / Od9tOuwSC70 + mIfpjeG68ZGm / PrxFf / s / CzwxF4Q ==
创建 / UhwvT / kY9HxiXaOjpIc / BarBkc = 的输出。

This example is in the TransUnion documentation:
Input of SampleIntegrationOwner2008‐11‐18T19:14:40.293Z with securitykey xBy/2CLudnBJOxOtDhDRnsDYq9HTuDVr2uCs3FMzoxXEA/Od9tOuwSC70+mIfpjeG68ZGm/PrxFf/s/CzwxF4Q==creates output of /UhwvT/kY9HxiXaOjpIc/BarBkc=.

鉴于数据和密钥，我无法在Java中获得相同的结果。我已经尝试了几个在线计算器，但也没有一个返回这个结果。他们的文档中的示例是否不正确，或者我只是没有正确处理这些字符串？

Given that data and key, I cannot get this same result in Java. I have tried several online calculators, and none of them return this result either. Is the example in their documentation incorrect, or am I just not handling these strings correctly?

以下是我目前使用的代码：

Here is the code I am currently working with:

public static String calcShaHash (String data, String key) {
    String HMAC_SHA1_ALGORITHM = "HmacSHA1";
    String result = null;

    try {
        Key signingKey = new SecretKeySpec(key.getBytes(), HMAC_SHA1_ALGORITHM);
        Mac mac = Mac.getInstance(HMAC_SHA1_ALGORITHM);
        mac.init(signingKey);
        byte[] rawHmac = mac.doFinal(data.getBytes());
        result = Base64.encodeBase64String(rawHmac);
    }
    catch (Exception e) {
        e.printStackTrace();
    }

    return result;
}

这是我的单位测试代码：

Here is my unit test code:

@Test
public void testCalcShaHash() {
    String data = "SampleIntegrationOwner2008-11-18T19:14:40.293Z";
    String key = "xBy/2CLudnBJOxOtDhDRnsDYq9HTuDVr2uCs3FMzoxXEA/Od9tOuwSC70+mIfpjeG68ZGm/PrxFf/s/CzwxF4Q==";
    String result = Utils.calcShaHash(data, key);
    assertEquals(result, "/UhwvT/kY9HxiXaOjpIc/BarBkc=");

}

推荐答案

有一点我注意到连字符不是正常的连字符。如果复制并粘贴它们，则它们不在ASCII字符集中。我可以肯定地说，哈希长度看起来是正确的。有趣的是，即使在输入正确的连字符后，我也无法让你的代码产生正确的答案。但无论如何。它解决了这个问题。 Huzzah！

One thing I noticed is that the hyphens are not normal hyphens. If you copy and paste them, they are not in the ASCII character set. All I can say for sure is that the hash length appears correct. The funny thing is, I couldn't get your code to produce the correct answer, even after putting the correct hyphens in. But no matter. It solved the problem. Huzzah!

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