openssl sha256差异 [英] openssl sha256 diff

问题描述

我正在使用openssl 1.0.1c，linux x86_64

I am using openssl 1.0.1c , linux x86_64

我正在创建的文件包含"hello"(没有换行符)

i am creating file contains "hello" (without new line character)

• openssl dgst -sha256 hello_file

我得到了 5891b5b522d5df086d0ff0b110fbd9d21bb4fc7163af34d08286a2e846f6be03

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如果我使用任何其他在线计算( 1 ， 2 ，3，4，5(由于缺乏名誉，我无法做更多的超链接)

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If i am using any other online calc (1 , 2 , 3 , 4 , 5 (because of lack of reputation i cant do more hyperlinks)

我得到了: 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824

最令人困惑的部分是我是否在尝试使用你好(换行符)" 的在线计算器 然后

The most confusing part is if i am trying online calculator with "hello(new line character)" then

1返回: 5891b5b522d5df086d0ff0b110fbd9d21bb4fc7163af34d08286a2e846f6be03

而这正是我从openssl获得的东西.当所有其他人回来时

and it is exactly what i am getting with openssl. While all others return

2、3、4、5: cd2eca3535741f27a8ae40c31b0c41d4057a7a7b912b33b9aed86485d1c84676

我知道回声引起的新行问题，但是我不知道每个文件都附有新行.那我如何在没有新行字符的情况下获取文件sha256?所有其他计算器都不对吗?

I knew about new line issue with echo, but i didn't knew that each file appended with the new line.So how can i get sha256 of file without new line character ? And what is wrong with all other calculators ?

预先感谢

基里尔

3 convertstring.com/Hash/SHA256

3 convertstring.com/Hash/SHA256

4 webutils.pl/index.php?idx=sha1

4 webutils.pl/index.php?idx=sha1

5 quickhash.com

5 quickhash.com

推荐答案

您是正确的，您的hello_file有换行符:

You are correct, your hello_file has a newline:

$ echo 'hello' > hello_file; openssl sha256 hello_file; xxd hello_file
SHA256(hello_file)= 5891b5b522d5df086d0ff0b110fbd9d21bb4fc7163af34d08286a2e846f6be03
0000000: 6865 6c6c 6f0a                           hello.

删除新行将取决于您的编辑器，如果您的情况与我发此帖子时的情况类似，弄乱密码的散列，您可以执行以下操作:

Removing the new line would depend on your editor, if your situation is similar to mine when i found this post, messing with a hash of a password you can just do something like this:

$ echo -n 'hello' > hello_file; openssl sha256 hello_file; xxd hello_file
SHA256(hello_file)= 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824
0000000: 6865 6c6c 6f                             hello

您可以执行以下操作删除最后一个字符(或两个):

You can do something like this to remove the last character(or two):

$ echo "hello" > hello_file; od -c hello_file; truncate hello_file --size=-1; od -c hello_file
0000000   h   e   l   l   o  \n
0000006
0000000   h   e   l   l   o
0000005

其他计算器似乎都在添加dos样式回车符+新行

It looks as if the other calculators are appending a dos style carriage return + new line

$ echo -en 'hello\r\n' > hello_file; openssl sha256 hello_file; xxd hello_file
SHA256(hello_file)= cd2eca3535741f27a8ae40c31b0c41d4057a7a7b912b33b9aed86485d1c84676
0000000: 6865 6c6c 6f0d 0a                        hello..

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