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unicode 版本 delphi (如XE2State of Qatar下的 base64,des,md5 算法

unicode 版本 delphi (如XE2State of Qatar下的 base64,des,md5 算法

作者:网络编程    来源:未知    发布时间:2020-01-04 22:26    浏览量:

unicode 版本 delphi (如XE2)下的 base64,des,md5 算法

  unit xDes; interface  uses SysUtils; 

感谢“温柔刀客”的努力,找到一篇不错的Flash编程文章,也感谢文章的作者,解决了我一个困惑了很久的问题,呵呵~~~

md5 的比较好改, des 和 base64 的比较麻烦.

type  TKeyByte = array[0..5] of Byte;  TDesMode = (dmEncry, dmDecry,',',');   function EncryStr(Str, Key: String): String;   function DecryStr(Str, Key: String): String;  function EncryStrHex(Str, Key: String): String;  function DecryStrHex(StrHex, Key: String): String;  const   BitIP: array[0..63] of Byte =     (57, 49, 41, 33, 25, 17,  9,  1,      59, 51, 43, 35, 27, 19, 11,  3,      61, 53, 45, 37, 29, 21, 13,  5,      63, 55, 47, 39, 31, 23, 15,  7,      56, 48, 40, 32, 24, 16,  8,  0,      58, 50, 42, 34, 26, 18, 10,  2,      60, 52, 44, 36, 28, 20, 12,  4,      62, 54, 46, 38, 30, 22, 14,  6 ,',',');    BitCP: array[0..63] of Byte =     ( 39,  7, 47, 15, 55, 23, 63, 31,       38,  6, 46, 14, 54, 22, 62, 30,       37,  5, 45, 13, 53, 21, 61, 29,       36,  4, 44, 12, 52, 20, 60, 28,       35,  3, 43, 11, 51, 19, 59, 27,       34,  2, 42, 10, 50, 18, 58, 26,       33,  1, 41,  9, 49, 17, 57, 25,       32,  0, 40,  8, 48, 16, 56, 24 ,',',');    BitExp: array[0..47] of Integer =     ( 31, 0, 1, 2, 3, 4, 3, 4, 5, 6, 7, 8, 7, 8, 9,10,       11,12,11,12,13,14,15,16,15,16,17,18,19,20,19,20,       21,22,23,24,23,24,25,26,27,28,27,28,29,30,31,0  ,',',');    BitPM: array[0..31] of Byte =     ( 15, 6,19,20,28,11,27,16, 0,14,22,25, 4,17,30, 9,        1, 7,23,13,31,26, 2, 8,18,12,29, 5,21,10, 3,24 ,',',');    sBox: array[0..7] of array[0..63] of Byte =     ( ( 14,  4, 13,  1,  2, 15, 11,  8,  3, 10,  6, 12,  5,  9,  0,  7,          0, 15,  7,  4, 14,  2, 13,  1, 10,  6, 12, 11,  9,  5,  3,  8,          4,  1, 14,  8, 13,  6,  2, 11, 15, 12,  9,  7,  3, 10,  5,  0,         15, 12,  8,  2,  4,  9,  1,  7,  5, 11,  3, 14, 10,  0,  6, 13 ),        ( 15,  1,  8, 14,  6, 11,  3,  4,  9,  7,  2, 13, 12,  0,  5, 10,          3, 13,  4,  7, 15,  2,  8, 14, 12,  0,  1, 10,  6,  9, 11,  5,          0, 14,  7, 11, 10,  4, 13,  1,  5,  8, 12,  6,  9,  3,  2, 15,         13,  8, 10,  1,  3, 15,  4,  2, 11,  6,  7, 12,  0,  5, 14,  9 ),        ( 10,  0,  9, 14,  6,  3, 15,  5,  1, 13, 12,  7, 11,  4,  2,  8,         13,  7,  0,  9,  3,  4,  6, 10,  2,  8,  5, 14, 12, 11, 15,  1,         13,  6,  4,  9,  8, 15,  3,  0, 11,  1,  2, 12,  5, 10, 14,  7,          1, 10, 13,  0,  6,  9,  8,  7,  4, 15, 14,  3, 11,  5,  2, 12 ),        (  7, 13, 14,  3,  0,  6,  9, 10,  1,  2,  8,  5, 11, 12,  4, 15,         13,  8, 11,  5,  6, 15,  0,  3,  4,  7,  2, 12,  1, 10, 14,  9,         10,  6,  9,  0, 12, 11,  7, 13, 15,  1,  3, 14,  5,  2,  8,  4,          3, 15,  0,  6, 10,  1, 13,  8,  9,  4,  5, 11, 12,  7,  2, 14 ),        (  2, 12,  4,  1,  7, 10, 11,  6,  8,  5,  3, 15, 13,  0, 14,  9,         14, 11,  2, 12,  4,  7, 13,  1,  5,  0, 15, 10,  3,  9,  8,  6,          4,  2,  1, 11, 10, 13,  7,  8, 15,  9, 12,  5,  6,  3,  0, 14,         11,  8, 12,  7,  1, 14,  2, 13,  6, 15,  0,  9, 10,  4,  5,  3 ),        ( 12,  1, 10, 15,  9,  2,  6,  8,  0, 13,  3,  4, 14,  7,  5, 11,         10, 15,  4,  2,  7, 12,  9,  5,  6,  1, 13, 14,  0, 11,  3,  8,          9, 14, 15,  5,  2,  8, 12,  3,  7,  0,  4, 10,  1, 13, 11,  6,          4,  3,  2, 12,  9,  5, 15, 10, 11, 14,  1,  7,  6,  0,  8, 13 ),        (  4, 11,  2, 14, 15,  0,  8, 13,  3, 12,  9,  7,  5, 10,  6,  1,         13,  0, 11,  7,  4,  9,  1, 10, 14,  3,  5, 12,  2, 15,  8,  6,          1,  4, 11, 13, 12,  3,  7, 14, 10, 15,  6,  8,  0,  5,  9,  2,          6, 11, 13,  8,  1,  4, 10,  7,  9,  5,  0, 15, 14,  2,  3, 12 ),        ( 13,  2,  8,  4,  6, 15, 11,  1, 10,  9,  3, 14,  5,  0, 12,  7,          1, 15, 13,  8, 10,  3,  7,  4, 12,  5,  6, 11,  0, 14,  9,  2,          7, 11,  4,  1,  9, 12, 14,  2,  0,  6, 10, 13, 15,  3,  5,  8,          2,  1, 14,  7,  4, 10,  8, 13, 15, 12,  9,  0,  3,  5,  6, 11 ) ,',',');    BitPMC1: array[0..55] of Byte =     ( 56, 48, 40, 32, 24, 16,  8,        0, 57, 49, 41, 33, 25, 17,        9,  1, 58, 50, 42, 34, 26,       18, 10,  2, 59, 51, 43, 35,       62, 54, 46, 38, 30, 22, 14,        6, 61, 53, 45, 37, 29, 21,       13,  5, 60, 52, 44, 36, 28,       20, 12,  4, 27, 19, 11,  3 ,',',');    BitPMC2: array[0..47] of Byte =     ( 13, 16, 10, 23,  0,  4,        2, 27, 14,  5, 20,  9,       22, 18, 11,  3, 25,  7,       15,  6, 26, 19, 12,  1,       40, 51, 30, 36, 46, 54,       29, 39, 50, 44, 32, 47,       43, 48, 38, 55, 33, 52,       45, 41, 49, 35, 28, 31 ,',',');  var  xysubKey: array[0..15] of TKeyByte;       implementation  procedure initPermutation(var inData: array of Byte,',','); var   newData: array[0..7] of Byte;   i: Integer; begin   FillChar(newData, 8, 0,',',');   for i := 0 to 63 do     if (inData[BitIP[i] shr 3] and (1 shl (7- (BitIP[i] and $07)))) <> 0 then       newData[i shr 3] := newData[i shr 3] or (1 shl (7-(i and $07)),',',');   for i := 0 to 7 do inData[i] := newData[i]; end;  procedure conversePermutation(var inData: array of Byte,',','); var   newData: array[0..7] of Byte;   i: Integer; begin   FillChar(newData, 8, 0,',',');   for i := 0 to 63 do     if (inData[BitCP[i] shr 3] and (1 shl (7-(BitCP[i] and $07)))) <> 0 then       newData[i shr 3] := newData[i shr 3] or (1 shl (7-(i and $07)),',',');   for i := 0 to 7 do inData[i] := newData[i]; end;  procedure expand(inData: array of Byte; var outData: array of Byte,',','); var   i: Integer; begin   FillChar(outData, 6, 0,',',');   for i := 0 to 47 do     if (inData[BitExp[i] shr 3] and (1 shl (7-(BitExp[i] and $07)))) <> 0 then       outData[i shr 3] := outData[i shr 3] or (1 shl (7-(i and $07)),',','); end;  procedure permutation(var inData: array of Byte,',','); var   newData: array[0..3] of Byte;   i: Integer; begin   FillChar(newData, 4, 0,',',');   for i := 0 to 31 do     if (inData[BitPM[unicode 版本 delphi (如XE2State of Qatar下的 base64,des,md5 算法。i] shr 3] and (1 shl (7-(BitPM[i] and $07)))) <> 0 then       newData[i shr 3] := newData[i shr 3] or (1 shl (7-(i and $07)),',',');   for i := 0 to 3 do inData[i] := newData[i]; end;  function si(s,inByte: Byte): Byte; var   c: Byte; begin   c := (inByte and $20) or ((inByte and $1e) shr 1) or     ((inByte and $01) shl 4,',',');   Result := (sBox[s][c] and $0f,',','); end;  procedure permutationChoose1(inData: array of Byte;   var outData: array of Byte,',','); var   i: Integer; begin   FillChar(outData, 7, 0,',',');   for i := 0 to 55 do     if (inData[BitPMC1[i] shr 3] and (1 shl (7-(BitPMC1[i] and $07)))) <> 0 then       outData[i shr 3] := outData[i shr 3] or (1 shl (7-(i and $07)),',','); end;  procedure permutationChoose2(inData: array of Byte;   var outData: array of Byte,',','); var   i: Integer; begin   FillChar(outData, 6, 0,',',');   for i := 0 to 47 do     if (inData[BitPMC2[i] shr 3] and (1 shl (7-(BitPMC2[i] and $07)))) <> 0 then       outData[i shr 3] := outData[i shr 3] or (1 shl (7-(i and $07)),',','); end;  procedure cycleMove(var inData: array of Byte; bitMove: Byte,',','); var   i: Integer; begin   for i := 0 to bitMove - 1 do   begin     inData[0] := (inData[0] shl 1) or (inData[1] shr 7,',',');     inData[1] := (inData[1] shl 1) or (inData[2] shr 7,',',');     inData[2] := (inData[2] shl 1) or (inData[3] shr 7,',',');     inData[3] := (inData[3] shl 1) or ((inData[0] and $10) shr 4,',',');     inData[0] := (inData[0] and $0f,',',');   end; end;  procedure makeKey(inKey: array of Byte; var outKey: array of TKeyByte,',',');const   bitDisplace: array[0..15] of Byte =     ( 1,1,2,2, 2,2,2,2, 1,2,2,2, 2,2,2,1 ,',','); var   outData56: array[0..6] of Byte;   key28l: array[0..3] of Byte;   key28r: array[0..3] of Byte;   key56o: array[0..6] of Byte;   i: Integer; begin   permutationChoose1(inKey, outData56,',',');    key28l[0] := outData56[0] shr 4;   key28l[1] := (outData56[0] shl 4) or (outData56[1] shr 4,',',');   key28l[2] := (outData56[1] shl 4) or (outData56[2] shr 4,',',');   key28l[3] := (outData56[2] shl 4) or (outData56[3] shr 4,',',');   key28r[0] := outData56[3] and $0f;   key28r[1] := outData56[4];   key28r[2] := outData56[5];   key28r[3] := outData56[6];    for i := 0 to 15 do   begin     cycleMove(key28l, bitDisplace[i],',',');     cycleMove(key28r, bitDisplace[i],',',');     key56o[0] := (key28l[0] shl 4) or (key28l[1] shr 4,',',');     key56o[1] := (key28l[1] shl 4) or (key28l[2] shr 4,',',');     key56o[2] := (key28l[2] shl 4) or (key28l[3] shr 4,',',');     key56o[3] := (key28l[3] shl 4) or (key28r[0],',',');     key56o[4] := key28r[1];     key56o[5] := key28r[2];     key56o[6] := key28r[3];     permutationChoose2(key56o, outKey[i],',',');   end; end;  procedure encry(inData, subKey: array of Byte;    var outData: array of Byte,',','); var   outBuf: array[0..5] of Byte;   buf: array[0..7] of Byte;   i: Integer; begin   expand(inData, outBuf,',',');   for i := 0 to 5 do outBuf[i] := outBuf[i] xor subKey[i];                                                // outBuf       xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx   buf[0] := outBuf[0] shr 2;                                  //xxxxxx -> 2   buf[1] := ((outBuf[0] and $03) shl 4) or (outBuf[1] shr 4,',','); // 4 <- xx xxxx -> 4   buf[2] := ((outBuf[1] and $0f) shl 2) or (outBuf[2] shr 6,',','); //        2 <- xxxx xx -> 6  buf[3] := outBuf[2] and $3f;                                //                    xxxxxx   buf[4] := outBuf[3] shr 2;                                  //                           xxxxxx   buf[5] := ((outBuf[3] and $03) shl 4) or (outBuf[4] shr 4,',','); //                                 xx xxxx   buf[6] := ((outBuf[4] and $0f) shl 2) or (outBuf[5] shr 6,',','); //                                        xxxx xx   buf[7] := outBuf[5] and $3f;                                //                                               xxxxxx   for i := 0 to 7 do buf[i] := si(i, buf[i],',',');   for i := 0 to 3 do outBuf[i] := (buf[i*2] shl 4) or buf[i*2+1];   permutation(outBuf,',',');   for i := 0 to 3 do outData[i] := outBuf[i]; end;  procedure desData(desMode: TDesMode;  inData: array of Byte; var outData: array of Byte,',','); // inData, outData 都为8Bytes,否则出错 var   i, j: Integer;   temp, buf: array[0..3] of Byte; begin   for i := 0 to 7 do outData[i] := inData[i];   initPermutation(outData,',',');   if desMode = dmEncry then   begin     for i := 0 to 15 do     begin       for j := 0 to 3 do temp[j] := outData[j];                 //temp = Ln       for j := 0 to 3 do outData[j] := outData[j + 4];        //Ln+1 = Rn       encry(outData, xysubKey[i], buf,',',');                           //Rn ==Kn==> buf      for j := 0 to 3 do outData[j + 4] := temp[j] xor buf[j];  //Rn+1 = Ln^buf     end;      for j := 0 to 3 do temp[j] := outData[j + 4];     for j := 0 to 3 do outData[j + 4] := outData[j];     for j := 0 to 3 do outData[j] := temp[j];   end  else if desMode = dmDecry then   begin     for i := 15 downto 0 do     begin       for j := 0 to 3 do temp[j] := outData[j];       for j := 0 to 3 do outData[j] := outData[j + 4];       encry(outData, xysubKey[i], buf,',',');      for j := 0 to 3 do outData[j + 4] := temp[j] xor buf[j];     end;     for j := 0 to 3 do temp[j] := outData[j + 4];     for j := 0 to 3 do outData[j + 4] := outData[j];     for j := 0 to 3 do outData[j] := temp[j];   end;   conversePermutation(outData,',','); end;  //////////////////////////////////////////////////////////////  function EncryStr(Str, Key: String): String;var   StrByte, OutByte, KeyByte: array[0..7] of Byte;   StrResult: String;   I, J: Integer; begin   if (Length(Str) > 0) and (Ord(Str[Length(Str)]) = 0) then    raise Exception.Create('Error: the last char is NULL char.',',',');   if Length(Key)< 8 then    while Length(Key)< 8 do Key := Key + Chr(0,',',');  while Length(Str) mod 8 <> 0 do Str := Str + Chr(0,',','); 

unit uFlash;

md5.pas

  for J := 0 to 7 do KeyByte[J] := Ord(Key[J + 1],',',');  makeKey(keyByte, xysubKey,',',');

interface

// tabs = 2

  StrResult := '';   for I := 0 to Length(Str) div 8 - 1 do   begin     for J := 0 to 7 do       StrByte[J] := Ord(Str[I * 8 + J + 1],',',');     desData(dmEncry, StrByte, OutByte,',',');     for J := 0 to 7 do       StrResult := StrResult + Chr(OutByte[J],',',');   end; 

uses
windows, SysUtils, Classes, Zlib;

//

//
//                                 MD5 Message-Digest for Delphi 4
//
//                                 Delphi 4 Unit implementing the
//                      RSA Data Security, Inc. MD5 Message-Digest Algorithm
//
//                          Implementation of Ronald L. Rivest's RFC 1321
//
//                      Copyright ?1997-1999 Medienagentur Fichtner & Meyer
//                                  Written by Matthias Fichtner
//

  Result := StrResult;end;

type
TBitWidth = Integer;
TSWFRect = packed record
Xmin: Integer; // in twips
Xmax: Integer; // in twips
Ymin: Integer; // in twips
Ymax: Integer; // in twips
end;

//

//               See RFC 1321 for RSA Data Security's copyright and license notice!

 ///////////////////////////////////////////////////////////  function EncryStrHex(Str, Key: String): String; var   StrResult, TempResult, Temp: String;   I: Integer; begin   TempResult := EncryStr(Str, Key,',',');   StrResult := '';   for I := 0 to Length(TempResult) - 1 do   begin     Temp := Format('%x', [Ord(TempResult[I + 1])],',',');     if Length(Temp) = 1 then Temp := '0' + Temp;     StrResult := StrResult + Temp;   end;   Result := StrResult; end; 

TSWFColor = packed record
R : Byte;
G : Byte;
B : Byte;
RGB : string;
end;

//

//
//     14-Jun-97  mf  Implemented MD5 according to RFC 1321                           RFC 1321
//     16-Jun-97  mf  Initial release of the compiled unit (no source code)           RFC 1321
//     28-Feb-99  mf  Added MD5Match function for comparing two digests               RFC 1321
//     13-Sep-99  mf  Reworked the entire unit                                        RFC 1321
//     17-Sep-99  mf  Reworked the "Test Driver" project                              RFC 1321
//     19-Sep-99  mf  Release of sources for MD5 unit and "Test Driver" project       RFC 1321
//

function DecryStr(Str, Key: String): String;var  StrByte, OutByte, KeyByte: array[0..7] of Byte;  StrResult: String;  I, J: Integer;begin  if Length(Key)< 8 then    while Length(Key)< 8 do Key := Key + Chr(0,',',');

TSWFHeader = packed record
Signature: array[0..2] of char;
Version: byte;
FileLength: cardinal;
FrameSize: TSWFRect;
FrameRate: byte;
FrameRateRemainder: byte;
FrameCount: cardinal;
BkColor : TSWFColor;
end;

//

//                   The latest release of md5.pas will always be available from
//                  the distribution site at:

  for J := 0 to 7 do KeyByte[J] := Ord(Key[J + 1],',',');  makeKey(keyByte, xysubKey,',',');

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