java 如何使用带密钥的 SHA-1 散列字符串？
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How to Hash String using SHA-1 with key?
提问by Ahmad Kayyali
The time I used to develop applications on iPhone I was converting String to SHA1 with two combination:
我曾经在 iPhone 上开发应用程序时，我使用两种组合将 String 转换为 SHA1：
- Data
- Key
- 数据
- 钥匙
Now I am developing an Android application and I did not any example for how to calculate SHA1 With key.
现在我正在开发一个 Android 应用程序，我没有任何关于如何使用密钥计算 SHA1 的示例。
I am greatly appreciative of any guidance or help.
我非常感谢任何指导或帮助。
[The code that I currently use][我目前使用的代码]
private void convertStringToSHA1()
{
String sTimeStamp = new SimpleDateFormat("MM/dd/yyyy HH:MM:SS").format(new java.util.Date());
String sStringToHash = String.format("%1$s\n%2$s", "Username",sTimeStamp);
MessageDigest cript = MessageDigest.getInstance("SHA-1");
cript.reset();
cript.update(sStringToHash.getBytes("utf-8"));
sStringToHash = new BigInteger(1, cript.digest()).toString(16);
}
采纳答案by evilone
Try something like that:
尝试这样的事情：
private String sha1(String s, String keyString) throws UnsupportedEncodingException, NoSuchAlgorithmException, InvalidKeyException {
SecretKeySpec key = new SecretKeySpec((keyString).getBytes("UTF-8"), "HmacSHA1");
Mac mac = Mac.getInstance("HmacSHA1");
mac.init(key);
byte[] bytes = mac.doFinal(s.getBytes("UTF-8"));
return new String( Base64.encodeBase64(bytes));
}
SecretKeySpecdocs.
回答by Fran García
Another solution would be using apache commons codec library:
另一种解决方案是使用 apache commons 编解码器库：
@Grapes(
@Grab(group='commons-codec', module='commons-codec', version='1.10')
)
import org.apache.commons.codec.digest.HmacUtils
HmacUtils.hmacSha1Hex(key.bytes, message.bytes)
