.NET的ＤＥＳ加密算法在ＤＥＬＰＨＩ里如何实现？

http://blog.sina.com.cn/u/589d32f5010006pe

unit Des;interfaceuses SysUtils;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
  subKey: 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[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, subKey[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, subKey[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);  for J := 0 to 7 do KeyByte[J] := Ord(Key[J + 1]);
  makeKey(keyByte, subKey);  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;  Result := StrResult;
end;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);  for J := 0 to 7 do KeyByte[J] := Ord(Key[J + 1]);
  makeKey(keyByte, subKey);  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(dmDecry, StrByte, OutByte);
    for J := 0 to 7 do
      StrResult := StrResult + Chr(OutByte[J]);
  end;
  while (Length(StrResult) > 0) and
    (Ord(StrResult[Length(StrResult)]) = 0) do
    Delete(StrResult, Length(StrResult), 1);
  Result := StrResult;
end;///////////////////////////////////////////////////////////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;function DecryStrHex(StrHex, Key: String): String;
  function HexToInt(Hex: String): Integer;
  var
    I, Res: Integer;
    ch: Char;
  begin
    Res := 0;
    for I := 0 to Length(Hex) - 1 do
    begin
      ch := Hex[I + 1];
      if (ch >= '0') and (ch <= '9') then
        Res := Res * 16 + Ord(ch) - Ord('0')
      else if (ch >= 'A') and (ch <= 'F') then
        Res := Res * 16 + Ord(ch) - Ord('A') + 10
      else if (ch >= 'a') and (ch <= 'f') then
        Res := Res * 16 + Ord(ch) - Ord('a') + 10
      else raise Exception.Create('Error: not a Hex String');
    end;
    Result := Res;
  end;var
  Str, Temp: String;
  I: Integer;
begin
  Str := '';
  for I := 0 to Length(StrHex) div 2 - 1 do
  begin
    Temp := Copy(StrHex, I * 2 + 1, 2);
    Str := Str + Chr(HexToInt(Temp));
  end;
  Result := DecryStr(Str, Key);
end;end.

楼上这个看过了,你告诉我我这段代码怎么调用呢?
string strKey = "E8437C5F";
byte[] IV = {0x12, 0x34, 0x56, 0x78, 0x90, 0xab, 0xcd, 0xef}; password = EncryptDES(password, strKey, IV);
？？？？？？？？？？

我是看别人贴的贴子不明白才在这里问的这个是不是叫3des?,明白的大哥给讲一下怎么调用,我试了十个了,没一个成功的

//可以把用.NET测试的输入输出结果贴出来比较
procedure TForm1.Button1Click(Sender: TObject);
const
  strkey = 'E8437C5F';
  IV: string  = #$12#$34#$56#$78#$90#$ab#$cd#$ef;
var
  password: string;
begin
  password := 'Zswang路过';
  password := des(strKey, password, True, False, IV);
end;

-$80000000,-$7FFF8000另外清洁大哥的网页里的const这里也编译不过去呀

编译错误: Overflow in conversion or arithmetic operation

//Delphi version
//ZswangY37, October 2006
//
//THIS SOFTWARE IS PROVIDED "AS IS" AND
//ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
//IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
//ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
//FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
//DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
//OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
//HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
//OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
//SUCH DAMAGE.unit DESUtils;interfacetype
  TDesKey = array of Longword;

function des_createKeys(key: string): TDesKey;
function des(key: string; message: string;
  encrypt: Boolean; mode: Boolean; iv: string): string;implementation//设计 Zswang 2006-10-26 wjhu111#21cn.com 尊重作者,转贴请注明出处//des_createKeys
//this takes as input a 64 bit key (even though only 56 bits are used)
//as an array of 2 integers, and returns 16 48 bit keys

function des_createKeys(key: string): TDesKey;
const
  //declaring this locally speeds things up a bit
  pc2bytes0: array[0..15] of Integer = (0, $4, $20000000, $20000004, $10000,
    $10004, $20010000, $20010004, $200, $204, $20000200, $20000204, $10200,
    $10204, $20010200, $20010204);
  pc2bytes1: array[0..15] of Integer = (0, $1, $100000, $100001, $4000000,
    $4000001, $4100000, $4100001, $100, $101, $100100, $100101, $4000100,
    $4000101, $4100100, $4100101);
  pc2bytes2: array[0..15] of Integer = (0, $8, $800, $808, $1000000, $1000008,
    $1000800, $1000808, 0, $8, $800, $808, $1000000, $1000008, $1000800,
    $1000808);
  pc2bytes3: array[0..15] of Integer = (0, $200000, $8000000, $8200000, $2000,
    $202000, $8002000, $8202000, $20000, $220000, $8020000, $8220000, $22000,
    $222000, $8022000, $8222000);
  pc2bytes4: array[0..15] of Integer = (0, $40000, $10, $40010, 0, $40000, $10,
    $40010, $1000, $41000, $1010, $41010, $1000, $41000, $1010, $41010);
  pc2bytes5: array[0..15] of Integer = (0, $400, $20, $420, 0, $400, $20, $420,
    $2000000, $2000400, $2000020, $2000420, $2000000, $2000400, $2000020,
    $2000420);
  pc2bytes6: array[0..15] of Integer = (0, $10000000, $80000, $10080000, $2,
    $10000002, $80002, $10080002, 0, $10000000, $80000, $10080000, $2,
    $10000002, $80002, $10080002);
  pc2bytes7: array[0..15] of Integer = (0, $10000, $800, $10800, $20000000,
    $20010000, $20000800, $20010800, $20000, $30000, $20800, $30800, $20020000,
    $20030000, $20020800, $20030800);
  pc2bytes8: array[0..15] of Integer = (0, $40000, 0, $40000, $2, $40002, $2,
    $40002, $2000000, $2040000, $2000000, $2040000, $2000002, $2040002,
    $2000002, $2040002);
  pc2bytes9: array[0..15] of Integer = (0, $10000000, $8, $10000008, 0,
    $10000000, $8, $10000008, $400, $10000400, $408, $10000408, $400, $10000400,
    $408, $10000408);
  pc2bytes10: array[0..15] of Integer = (0, $20, 0, $20, $100000, $100020,
    $100000, $100020, $2000, $2020, $2000, $2020, $102000, $102020, $102000,
    $102020);
  pc2bytes11: array[0..15] of Integer = (0, $1000000, $200, $1000200, $200000,
    $1200000, $200200, $1200200, $4000000, $5000000, $4000200, $5000200,
    $4200000, $5200000, $4200200, $5200200);
  pc2bytes12: array[0..15] of Integer = (0, $1000, $8000000, $8001000, $80000,
    $81000, $8080000, $8081000, $10, $1010, $8000010, $8001010, $80010, $81010,
    $8080010, $8081010);
  pc2bytes13: array[0..15] of Integer = (0, $4, $100, $104, 0, $4, $100, $104,
  $1, $5, $101, $105, $1, $5, $101, $105);
  shifts: array[0..15] of Boolean = (False, False, True, True, True, True, True,
    True, False, True, True, True, True, True, True, False);
var
  //other variables
  iterations: Longword;
  lefttemp, righttemp: Longword;
  m, n, temp: Longword;
  i, j: Longword;
  left, right: Longword;
begin
  //how many iterations (1 for des, 3 for triple des)
  if Length(key) >= 24 then
    iterations := 3
  else iterations := 1;
  //stores the return keys
  SetLength(Result, 32 * iterations);
  //now define the left shifts which need to be done
  m := 1;
  n := 0;
  for j := 1 to iterations do //either 1 or 3 iterations
  begin
    left := (Ord(Key[m]) shl 24) or (Ord(Key[m + 1]) shl 16) or
      (Ord(Key[m + 2]) shl 8) or Ord(Key[m + 3]);
    Inc(m, 4);
    right := (Ord(Key[m]) shl 24) or (Ord(Key[m + 1]) shl 16) or
      (Ord(Key[m + 2]) shl 8) or Ord(Key[m + 3]);
    Inc(m, 4);    temp := ((left shr 4) xor right) and $0f0f0f0f;
    right := right xor temp;
    left := left xor (temp shl 4);
    temp := ((Int64(right) shr -16) xor left) and $0000ffff;
    left := left xor temp;
    right := right xor Longword(Int64(temp) shl -16);
    temp := ((left shr 2) xor right) and $33333333;
    right := right xor temp;
    left := left xor (temp shl 2);
    temp := ((Int64(right) shr -16) xor left) and $0000ffff;
    left := left xor temp;
    right := right xor Longword(Int64(temp) shl -16);
    temp := ((left shr 1) xor right) and $55555555;
    right := right xor temp;
    left := left xor (temp shl 1);
    temp := ((right shr 8) xor left) and $00ff00ff;
    left := left xor temp;
    right := right xor (temp shl 8);
    temp := ((left shr 1) xor right) and $55555555;
    right := right xor temp;
    left := left xor (temp shl 1);    //the right side needs to be shifted and to get the last four bits of the left side
    temp := (left shl 8) or ((right shr 20) and $000000f0);
    //left needs to be put upside down
    left := (right shl 24) or ((right shl 8) and $ff0000) or ((right shr 8) and $ff00) or ((right shr 24) and $f0);
    right := temp;    //now go through and perform these shifts on the left and right Result
    for i := Low(shifts) to High(shifts) do
    begin
      //shift the Result either one or two bits to the left
      if shifts[i] then
      begin
        left := (left shl 2) or (left shr 26);
        right := (right shl 2) or (right shr 26);
      end else
      begin
        left := (left shl 1) or (left shr 27);
        right := (right shl 1) or (right shr 27);
      end;
      left := left and -$f;
      right := right and -$f;      //now apply PC-2, in such a way that E is easier when encrypting or decrypting
      //this conversion will look like PC-2 except only the last 6 bits of each byte are used
      //rather than 48 consecutive bits and the order of lines will be according to
      //how the S selection functions will be applied: S2, S4, S6, S8, S1, S3, S5, S7
      lefttemp := pc2bytes0[left shr 28] or pc2bytes1[(left shr 24) and $f] or
        pc2bytes2[(left shr 20) and $f] or pc2bytes3[(left shr 16) and $f] or
        pc2bytes4[(left shr 12) and $f] or pc2bytes5[(left shr 8) and $f] or
        pc2bytes6[(left shr 4) and $f];
      righttemp := pc2bytes7[right shr 28] or pc2bytes8[(right shr 24) and $f]
        or pc2bytes9[(right shr 20) and $f] or pc2bytes10[(right shr 16) and $f]
        or pc2bytes11[(right shr 12) and $f] or pc2bytes12[(right shr 8) and $f]
        or pc2bytes13[(right shr 4) and $f];
      temp := ((righttemp shr 16) xor lefttemp) and $0000ffff;
      Result[n] := lefttemp xor temp;
      Inc(n);
      Result[n] := Integer(righttemp xor (temp shl 16));
      Inc(n);
    end;
  end; //for each iterations
end; //end of des_createKeys

spfunction2: array[0..63] of int64 = (-$7FEF7FE0, -$7FFF8000, $8000,
    $108020, $100000, $20, -$7FEFFFE0, -$7FFF7FE0, -$7FFFFFE0, -$7FEF7FE0,
    -$7FEF8000, -$80000000, -$7FFF8000, $100000, $20, -$7FEFFFE0, $108000,
    $100020, -$7FFF7FE0, 0, -$80000000,  D7定义成什么类型都不能通过编译

伴水的方法怎么加密都是<@性
-$8000000000强转int64才可编译

兄弟，去GOOGLE一下，DES.PAS多的是，下一下回来就可以用的。网页上COPY下来的，有很多看不见的特殊字符，D7经常不认，编译通不过。

找不到可用的,找到的组件也不能计算出和.net一样的结果来

楼主,那我就没办法,我发给你的是标准的Des算法,

加上一个编译指令
{$R-}
将范围检查关闭
另外我上面已经说过
你的输入输出结果是什么你贴的"0wC1lYlbnLc="是结果吗？
那输入是什么？？？？？？？

yi10000() ( ) 信誉：100 Blog 那我想加个VI呢
public static string EncryptDES(string encryptString, string encryptKey, Byte [] IV)
.NET的是这样定义的,我找遍了所有组件,跟.net的结果也不一致

public static string EncryptDES(string encryptString, string encryptKey, Byte [] IV)
{
try
{
string s = encryptKey.Substring(0, 8);
byte[] rgbKey = Encoding.UTF8.GetBytes(s);
byte[] rgbIV = (IV == null) ? rgbKey : IV;
byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);

DESCryptoServiceProvider dCSP = new DESCryptoServiceProvider();
MemoryStream mStream = new MemoryStream();
CryptoStream cStream = new CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
cStream.Write(inputByteArray, 0, inputByteArray.Length);
cStream.FlushFinalBlock();
return Convert.ToBase64String(mStream.ToArray());
}
catch
{
return encryptString;
}
}

iv: array[0..7] of byte = (18, 52, 86, 120, byte(144), byte(171), byte(205), byte(239));
strKey = 'E8437C5F';伴水我输入的这个
对 'tester'加密

"0wC1lYlbnLc="是结果，后通地base64转换

试过伴水的方法得
q7A8ItDUQAK=

调试易

.NET的ＤＥＳ加密算法在ＤＥＬＰＨＩ里如何实现？

解决方案 »