HMAC-SHA1:如何在 Java 中正确执行此操作?
我使用 HMAC-SHA1 对一些值进行哈希处理,在 Java 中使用以下代码:
public static String hmacSha1(String value, String key) {
try {
// Get an hmac_sha1 key from the raw key bytes
byte[] keyBytes = key.getBytes();
SecretKeySpec signingKey = new SecretKeySpec(keyBytes, "HmacSHA1");
// Get an hmac_sha1 Mac instance and initialize with the signing key
Mac mac = Mac.getInstance("HmacSHA1");
mac.init(signingKey);
// Compute the hmac on input data bytes
byte[] rawHmac = mac.doFinal(value.getBytes());
// Convert raw bytes to Hex
byte[] hexBytes = new Hex().encode(rawHmac);
// Covert array of Hex bytes to a String
return new String(hexBytes, "UTF-8");
} catch (Exception e) {
throw new RuntimeException(e);
}
}
Hex()
属于 org.apache.commons.codec
在 PHP 中,有一个类似的函数我用 hash_hmac(algorithm, data, key)
来比较 Java 实现返回的值。
所以第一次尝试是:
hash_hmac("sha1", "helloworld", "mykey") // PHP
返回: 74ae5a4a3d9996d5918defc2c3d475471bbf59ac
我的 Java 函数也返回 74ae5a4a3d9996d5918defc2c3d475471bbf59ac
。
好的,看起来有效。然后我尝试使用更复杂的键:
hash_hmac("sha1", "helloworld", "PRIE7$oG2uS-Yf17kEnUEpi5hvW/#AFo") // PHP
返回:e98bcc5c5be6f11dc582ae55f520d1ec4ae29f7a
而这次我的Java impl返回:c19fccf57c613f1868dd22d586f9571cf6412cd0
我的PHP代码返回的散列不等于值由我的 Java 函数返回,我不知道为什么。
有什么建议吗?
I'm hashing some values using HMAC-SHA1, using the following code in Java:
public static String hmacSha1(String value, String key) {
try {
// Get an hmac_sha1 key from the raw key bytes
byte[] keyBytes = key.getBytes();
SecretKeySpec signingKey = new SecretKeySpec(keyBytes, "HmacSHA1");
// Get an hmac_sha1 Mac instance and initialize with the signing key
Mac mac = Mac.getInstance("HmacSHA1");
mac.init(signingKey);
// Compute the hmac on input data bytes
byte[] rawHmac = mac.doFinal(value.getBytes());
// Convert raw bytes to Hex
byte[] hexBytes = new Hex().encode(rawHmac);
// Covert array of Hex bytes to a String
return new String(hexBytes, "UTF-8");
} catch (Exception e) {
throw new RuntimeException(e);
}
}
Hex()
belongs to org.apache.commons.codec
In PHP there's a similar function hash_hmac(algorithm, data, key)
that I use to compare the values returned by my Java implementation.
So the first try is:
hash_hmac("sha1", "helloworld", "mykey") // PHP
that returns: 74ae5a4a3d9996d5918defc2c3d475471bbf59ac
My Java function returns 74ae5a4a3d9996d5918defc2c3d475471bbf59ac
as well.
Ok, it seems working. Then I try to use a more complex key:
hash_hmac("sha1", "helloworld", "PRIE7$oG2uS-Yf17kEnUEpi5hvW/#AFo") // PHP
that returns: e98bcc5c5be6f11dc582ae55f520d1ec4ae29f7a
While this time my Java impl returns: c19fccf57c613f1868dd22d586f9571cf6412cd0
The hash returned by my PHP code is not equal to the value returned by my Java function, and I can't find out why.
Any tips?
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在 PHP 端,在键周围使用单引号,这样
$
字符就不会被视为变量引用。即,否则,您真正获得的密钥是
PRIE7-Yf17kEnUEpi5hvW/#AFo
(假设变量$oG2uS
未定义)。On your PHP side, use single-quotes around the key so that the
$
character is not treated as a variable reference. i.e.,Otherwise, the key you really get is
PRIE7-Yf17kEnUEpi5hvW/#AFo
(assuming the variable$oG2uS
is not defined).推荐 Apache 通用编解码器库,非常简单易用。
HmacUtils.hmacSha1Hex(key, string_to_sign);
Recommend Apache Common Codec Library, quite simple and easy to use.
HmacUtils.hmacSha1Hex(key, string_to_sign);
其他指出来自 Apache commons 的 HmacUtils 的答案现在已被弃用。 Apache commons 现在建议使用:
new HmacUtils(HmacAlgorithms.HMAC_SHA_1, key).hmacHex(string_to_sign)
The other answers pointing out HmacUtils from Apache commons have been deprecated by now. Apache commons now recommends using:
new HmacUtils(HmacAlgorithms.HMAC_SHA_1, key).hmacHex(string_to_sign)
双引号 ("") 中的任何 $ 符号在 PHP 中都被视为变量。您可以通过使用前一个评论者指出的单引号来避免错误,也可以转义美元符号,如下
所示注意 $ 现在是 \$
Any $ symbol in double quotes ("") is regarded as a a variable in PHP. You can avoid the error by using either single quotes as pointed out by the previous commenter or you can escape the dollar sign as below
Notice $ is now \$
在 Java 中,并使用 maven:
将以下依赖项添加到
pom.xml
中:然后尝试使用此对其进行签名
In Java, and using maven:
Add the below dependency into the
pom.xml
:and then try to sign it using this