SHA 256 不同的结果

SHA 256 Different Result(SHA 256 不同的结果)
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问题描述

如果我从 Mac 调用命令

If I invoke the command from Mac

echo hello | shasum -a 256

或来自 ubuntu

echo hello | sha256sum

然后我得到以下结果

5891b5b522d5df086d0ff0b110fbd9d21bb4fc7163af34d08286a2e846f6be03  -

我注意到末尾有破折号.

I notice there is dash at the end.

但是当我使用 Python hashlib 或 Java java.security.MessageDigest 时,它们给我的结果相同,如下所示:

But when I use Python hashlib or Java java.security.MessageDigest, they give me the same result as follows:

2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824

那么,谁能指出我哪里弄错了?

So, could anyone point out where I got it wrong please?

谢谢.

Python:

>>> import hashlib
>>> hashlib.sha256("hello").hexdigest()

Java:

MessageDigest md = MessageDigest.getInstance("SHA-256");
String text = "hello";
md.update(text.getBytes("UTF-8"));
byte[] digest = md.digest();
StringBuffer sb = new StringBuffer();
for (int i = 0; i < digest.length; i++) {
    sb.append(String.format("%02x", digest[i] & 0xFF))
}
System.out.println(sb.toString());

推荐答案

echo 命令正在为您的字符串添加尾随换行符.试试:

The echo commands are adding a trailing newline to your string. Try:

hashlib.sha256("hello
").hexdigest()

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