在Delphi XE中的SHA1散列 [英] SHA1 hashing in Delphi XE

问题描述

我正在实现XML数字签名。我现在开始只有一小步，所以现在我想解决SHA-1哈希的问题。

I'm in the process of implementing XML digital signatures. I'm starting with little steps, so right now I want to solve the problem of SHA-1 hashing.

在SO中有很多问题： p>

There are lots of questions about this in SO:

1. 数字签名Key with Lockbox


2. Delphi加密库< a>


3. 转换此PHP数字签名到Delphi


4. Delphi：有一个版本的LockBox Delphi-XE


5. Delphi 2010加密库

1. Digitially Sign Key with Lockbox
2. Encryption library for Delphi
3. Convert this php digital signing to Delphi
4. Delphi: is there a version of LockBox for Delphi-XE
5. Delphi 2010 Cryptography libraries

...可能更多。但是，我使用Delphi XE。到目前为止，我试过LockBox 2（Songbeamer和Sourceforge版本），Lock Box 3，DCPCrypto2和其他一些（ Hashes 是一个易于使用的单位，它使用Windows加密函数）

...and probably more. However, I'm using Delphi XE. So far, I've tried LockBox 2 (both the Songbeamer and Sourceforge versions), Lock Box 3, DCPCrypto2 and some others (Hashes is an easy to use unit which uses Windows crypto functions)

我准备了一个小测试台，它给我以下内容：

I prepared a small test rig that gives me the following:

LockBox2

FAILED: 1 ('abc') 
       Got: '9f04f41a848514162050e3d68c1a7abb441dc2b5'
  Expected: 'a9993e364706816aba3e25717850c26c9cd0d89d'
FAILED: 2 ('abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq') 
       Got: '51d7d8769ac72c409c5b0e3f69c60adc9a039014'
  Expected: '84983e441c3bd26ebaae4aa1f95129e5e54670f1'

LockBox3

FAILED: 1 ('abc') 
       Got: '9f04f41a848514162050e3d68c1a7abb441dc2b5'
  Expected: 'a9993e364706816aba3e25717850c26c9cd0d89d'
FAILED: 2 ('abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq') 
       Got: '51d7d8769ac72c409c5b0e3f69c60adc9a039014'
  Expected: '84983e441c3bd26ebaae4aa1f95129e5e54670f1'

DCPCrypto2

FAILED: 1 ('abc') 
       Got: '9f04f41a848514162050e3d68c1a7abb441dc2b5'
  Expected: 'a9993e364706816aba3e25717850c26c9cd0d89d'
FAILED: 2 ('abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq') 
       Got: '51d7d8769ac72c409c5b0e3f69c60adc9a039014'
  Expected: '84983e441c3bd26ebaae4aa1f95129e5e54670f1'

散列

Test 1 passes
Test 2 passes

您是否成功地在Delphi XE中编译了上述库并使它们给出了合适的值？我对 DCPCrypt2 SelfTest 程序特别感兴趣。

Have you succeeded in compile the mentioned libraries under Delphi XE and make them give the appropriate values? I'm particularly interested in DCPCrypt2 SelfTest procedure.

/ strong>：我已将此答案添加到固定来源码。

Edit: I've added this answer with the fixed source code. Thank you all for your help, it is most appreciated.

推荐答案

Leonardo，我认为你的问题是 UNICODE 当你使用一个函数来散列 string 时，你传递一个数组（缓冲区）的字节。所以当你通过Delphi XE中的 abc 字符串时，你的哈希值为 61 00 62 00 63 00 （十六进制表示）

Leonardo, i think which your problem is the UNICODE when you uses a function to hash a string you are passing a array (buffer) of bytes. so when you pass the abc string in Delphi XE, your are hashing a buffer like this 61 00 62 00 63 00 (Hex representation)

检查此示例应用程序，该应用程序使用来自 Jwscl库代码Lib）

check this sample application which uses the Windows crypto functions from the Jwscl library (JEDI Windows Security Code Lib)

program Jwscl_TestHash;

{$APPTYPE CONSOLE}

uses
  JwsclTypes,
  JwsclCryptProvider,
  Classes,
  SysUtils;

function GetHashString(Algorithm: TJwHashAlgorithm; Buffer : Pointer;Size:Integer) : AnsiString;
var
  Hash: TJwHash;
  HashSize: Cardinal;
  HashData: Pointer;
  i       : Integer;
begin
  Hash := TJwHash.Create(Algorithm);
  try
    Hash.HashData(Buffer,Size);
    HashData := Hash.RetrieveHash(HashSize);
    try
        SetLength(Result,HashSize*2);
        BinToHex(PAnsiChar(HashData),PAnsiChar(Result),HashSize);
    finally
      TJwHash.FreeBuffer(HashData);
    end;
  finally
    Hash.Free;
  end;
end;


function GetHashSHA(FBuffer : AnsiString): AnsiString;
begin
   Result:=GetHashString(haSHA,@FBuffer[1],Length(FBuffer));
end;

function GetHashSHA_Unicode(FBuffer : String): String;
begin
   Result:=GetHashString(haSHA,@FBuffer[1],Length(FBuffer)*SizeOf(Char));
end;

begin
 try
     Writeln(GetHashSHA('abc'));
     Writeln(GetHashSHA('abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq'));
     Writeln(GetHashSHA_Unicode('abc'));
     Writeln(GetHashSHA_Unicode('abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq'));
     Readln;
 except
    on E:Exception do
    begin
        Writeln(E.Classname, ':', E.Message);
        Readln;
    end;
 end;

end.

此回报

ABC AnsiString类型

abc AnsiString

A9993E364706816ABA3E25717850C26C9CD0D89D

A9993E364706816ABA3E25717850C26C9CD0D89D

abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq AnsiString

abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq AnsiString

84983E441C3BD26EBAAE4AA1F95129E5E54670F1

84983E441C3BD26EBAAE4AA1F95129E5E54670F1 for

abc 的unicode

9F04F41A848514162050E3D68C1A7ABB441DC2B5

9F04F41A848514162050E3D68C1A7ABB441DC2B5

abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq 的Unicode

51D7D8769AC72C409C5B0E3F69C60ADC9A039014

51D7D8769AC72C409C5B0E3F69C60ADC9A039014

这篇关于在Delphi XE中的SHA1散列的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！