если хошь здеся лежит "почти" российский ГОСТ(стандарт шифрования)
#include <vcl.h>
#include <stdio.h>
#include <conio.h>
#pragma hdrstop
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
union transform
{
unsigned __int64 X[4];
unsigned int _h[8];
unsigned short _s[16];
unsigned char ch[32];
}Y;
void crypt(unsigned int*n1,unsigned int*n2,unsigned long *k);
void multi(unsigned char*x,unsigned char *l);
void prisvUV(unsigned char *h,unsigned char *m);
void calc_key(unsigned char *u,unsigned char *v);
void A(unsigned char *u);
void preobr_KSI(transform*f,int kol);
void prost_zam(unsigned char*h);
void Hshag(unsigned char*h,unsigned char*m);
void k_sum(unsigned char*s1,unsigned char* s2);
int readM(unsigned char* m,FILE*f);
TForm1 *Form1;
unsigned char U[32]={0},V[32]={0},H[32]={0},W[32]={0},L[32]={0},E[32]={0};
unsigned char K[4][32]={0};
unsigned char M[32];
unsigned char C[3][32]={{0},{0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff,
0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00,
0x00, 0xff, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff,
0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0xff},{0}};
boolean openf=false;
static unsigned char tab[8][16] ={
0x4,0xA,0x9,0x2,0xD,0x8,0x0,0xE,0x6,0xB,0x1,0xC,0x 7,0xF,0x5,0x3,
0xE,0xB,0x4,0xC,0x6,0xD,0xF,0xA,0x2,0x3,0x8,0x1,0x 0,0x7,0x5,0x9,
0x5,0x8,0x1,0xD,0xA,0x3,0x4,0x2,0xE,0xF,0xC,0x7,0x 6,0x0,0x9,0xB,
0x7,0xD,0xA,0x1,0x0,0x8,0x9,0xF,0xE,0x4,0x6,0xC,0x B,0x2,0x5,0x3,
0x6,0xC,0x7,0x1,0x5,0xF,0xD,0x8,0x4,0xA,0x9,0xE,0x 0,0x3,0xB,0x2,
0x4,0xB,0xA,0x0,0x7,0x2,0x1,0xD,0x3,0x6,0x8,0x5,0x 9,0xC,0xF,0xE,
0xD,0xB,0x4,0x1,0x3,0xF,0x5,0x9,0x0,0xA,0xE,0x7,0x 6,0x8,0x2,0xC,
0x1,0xF,0xD,0x0,0x5,0x7,0xA,0x4,0x9,0x2,0x3,0xE,0x 6,0xB,0x8,0xC};
//---------------------------------------------------------------------------
void crypt(unsigned int*n1,unsigned int*n2,unsigned long *k)
{
unsigned int N1=*n1,N2=*n2,n=0;
int buf[8];
for(int i=0;i<32;i++)
{
if (i<24)
N1=N1+k[i%8];
else N1=N1+k[7-i%8];
for (int j=0;j<=7;j++)
{
n=N1>>(4*j);
n=n&0xF;
buf[j]=tab[j][n];
}
N1=0;
for(int j=0;j<=7;j++)
N1=N1^(buf[j]<<(4*j));
N1=(N1<<11)|(N1>>21);
N1=N1^N2;
N2=*n1;
*n1=N1;
}
*n2=*n1;*n1=N2;
}
//---------------------------------------------------------------------------
void multi(unsigned char*x,unsigned char *l)
{
int c=0;char y=8;
int k;
for (int j=0;j<4;j++)
{
k=l[j]+x[j]*y+c;
l[j]=k%256;
c=k/256;
}
l[4]=c;
};
void A(unsigned char *u);
//---------------------------------------------------------------------------
void prisvUV(unsigned char *h,unsigned char *m)
{
for(int i=0;i<32;i++)
{
U[i]=h[i];
V[i]=m[i];
}
}
//---------------------------------------------------------------------------
void calc_key(unsigned char *u,unsigned char *v)
{
for(int i=0;i<32;i++) {W[i]=u[i]^v[i];}
for(int i=0;i<=3;i++) {
for(int k=1;k<=8;k++) {
K[0][(i+1+4*(k-1))-1]=W[(8*i+k)-1];}}
for(int ii=0;ii<3;ii++)
{
A(U);
for(int j=0;j<32;j++) {U[j]=U[j]^C[ii][j];}
A(V);A(V);
for(int j=0;j<32;j++) {W[j]=U[j]^V[j];}
for(int i=0;i<=3;i++) {
for(int k=1;k<=8;k++) {
K[ii+1][(i+1+4*(k-1))-1]=W[(8*i+k)-1];}}
}
}
//---------------------------------------------------------------------------
void A(unsigned char *u){
transform temp,YY;
for (int i=0;i<32;i++) {temp.ch[i]=u[i];}
YY.X[3]=temp.X[0]^temp.X[1];
YY.X[2]=temp.X[3];
YY.X[1]=temp.X[2];
YY.X[0]=temp.X[1];
for (int i=0;i<32;i++) {u[i]=YY.ch[i];}
}
//---------------------------------------------------------------------------
void preobr_KSI(transform*f,int kol)
{
short temp1=0;
for(int i=0;i<kol;i++)
{
temp1=f->_s[0]^f->_s[1]^f->_s[2]^f->_s[3]^f->_s[12]^f->_s[15];
for(int ii=0;ii<15;ii++) {f->_s[ii]=f->_s[ii+1];}
f->_s[15]=temp1;
}
}
//---------------------------------------------------------------------------
void prost_zam(unsigned char*h)
{
unsigned int N1=0,N2=0;
transform for_zam;
for(int i=0;i<32;i++) {for_zam.ch[i]=h[i];}
for(int i=0;i<4;i++)
{
N1=for_zam._h[i*2];
N2=for_zam._h[i*2+1];
crypt(&N1,&N2,((unsigned long*)K)+i*8);
Y._h[i*2]=N1;Y._h[i*2+1]=N2;
}
}
//----------------------------------------------------------------------------
void Hshag(unsigned char*h,unsigned char*m)
{
preobr_KSI(&Y,12);
for(int i=0;i<32;i++) {Y.ch[i]=Y.ch[i]^m[i];}
preobr_KSI(&Y,1);
for(int i=0;i<32;i++) {Y.ch[i]=Y.ch[i]^h[i];}
preobr_KSI(&Y,61);
for(int y=31;y>=0;y--) {h[y]=Y.ch[y];}
}
//----------------------------------------------------------------------------
void k_sum(unsigned char*s1,unsigned char* s2)
{
int k=0;
for(int i=0;i<32;i++)
{
k=k+s1[i]+s2[i];
s1[i]=k%256;
k=k/256;
}
}
//----------------------------------------------------------------------------
int readM(unsigned char* m,FILE*f)
{
int i;
for(i=0;i<32;i++)
{
m[i]=fgetc(f);
if(feof(f)) break;
}
if(i!=32)
for(int y=i;y<32;y++) {m[y]=0x00;}
return i;
}
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button2Click(TObject *Sender)
{
if (openf)
{
int last=0;
FILE *f=fopen(OpenDialog1->FileName.c_str(),"rb");
fseek(f,0,SEEK_END);long int len=ftell(f);rewind(f);
multi((unsigned char*)&len,L);
int i=1;
do{
last=readM(M,f);
if(last==32&&i*32<len)
{prisvUV(H,M);
calc_key(U,V);
prost_zam(H);
Hshag(H,M);
k_sum(E,M);}
else
{
k_sum(E,M);
prisvUV(H,M);
calc_key(U,V);
prost_zam(H);
Hshag(H,M);
prisvUV(H,L);
calc_key(U,V);
prost_zam(H);
Hshag(H,L);
prisvUV(H,E);
calc_key(U,V);
prost_zam(H);
Hshag(H,E);
break;
}
i++;
}
while(1);
for(int i=31;i>=0;i--) {Edit1->Text=Edit1->Text+IntToHex(H[i],2);}
fcloseall();
}
}
//---------------------------------------------------------------------------
void __fastcall TForm1::N2Click(TObject *Sender)
{
if(OpenDialog1->Execute())
openf=true;
}
//---------------------------------------------------------------------------
void __fastcall TForm1::N3Click(TObject *Sender)
{
Form1->Close();
}
//---------------------------------------------------------------------------
разберешься сам? есть еще нормально написанный но я не помню куда его сунул....((((
привожу пример криптографии MD5 На Delphi:
{ Вычисление хеш-суммы MD5 }
unit UMD5;
interface
uses Windows, SysUtils, Classes;
type
{ Тип TMD5Digest используется для получения
результата функций вычисления хеш-суммы.
Содержимое записи можно использовать
как набор из 4 целых чисел, или как
массив из 16 байт }
PMD5Digest = ^TMD5Digest;
TMD5Digest = record
case Integer of
0: (A, B, C, D: LongInt);
1: (v: array[0..15] of Byte);
end;
// вычисление хеш-суммы для строки
function MD5String(const S: string): TMD5Digest;
// вычисление хеш-суммы для файла
function MD5File(const FileName: string): TMD5Digest;
// вычисление хеш-суммы для содержиого потока Stream
function MD5Stream(const Stream: TStream): TMD5Digest;
// вычисление хеш-суммы для произвольного буфера
function MD5Buffer(const Buffer; Size: Integer): TMD5Digest;
// преобразование хеш-суммы в строку из шестнадцатеричных цифр
function MD5DigestToStr(const Digest: TMD5Digest): string;
// сравнение двух хеш-сумм
function MD5DigestCompare(const Digest1, Digest2: TMD5Digest): Boolean;
implementation
type
UINT4 = LongWord;
PArray4UINT4 = ^TArray4UINT4;
TArray4UINT4 = array[0..3] of UINT4;
PArray2UINT4 = ^TArray2UINT4;
TArray2UINT4 = array[0..1] of UINT4;
PArray16Byte = ^TArray16Byte;
TArray16Byte = array[0..15] of Byte;
PArray64Byte = ^TArray64Byte;
TArray64Byte = array[0..63] of Byte;
PByteArray = ^TByteArray;
TByteArray = array[0..0] of Byte;
PUINT4Array = ^TUINT4Array;
TUINT4Array = array[0..0] of UINT4;
PMD5Context = ^TMD5Context;
TMD5Context = record
state: TArray4UINT4;
count: TArray2UINT4;
buffer: TArray64Byte;
end;
const
S11 = 7;
S12 = 12;
S13 = 17;
S14 = 22;
S21 = 5;
S22 = 9;
S23 = 14;
S24 = 20;
S31 = 4;
S32 = 11;
S33 = 16;
S34 = 23;
S41 = 6;
S42 = 10;
S43 = 15;
S44 = 21;
var
Padding: TArray64Byte =
($80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
function _F(x, y, z: UINT4): UINT4;
begin
Result := (((x) and (y)) or ((not x) and (z)));
end;
function _G(x, y, z: UINT4): UINT4;
begin
Result := (((x) and (z)) or ((y) and (not z)));
end;
function _H(x, y, z: UINT4): UINT4;
begin
Result := ((x) xor (y) xor (z));
end;
function _I(x, y, z: UINT4): UINT4;
begin
Result := ((y) xor ((x) or (not z)));
end;
function ROTATE_LEFT(x, n: UINT4): UINT4;
begin
Result := (((x) shl (n)) or ((x) shr (32 - (n))));
end;
procedure FF(var a: UINT4; b, c, d, x, s, ac: UINT4);
begin
a := a + _F(b, c, d) + x + ac;
a := ROTATE_LEFT(a, s);
a := a + b;
end;
procedure GG(var a: UINT4; b, c, d, x, s, ac: UINT4);
begin
a := a + _G(b, c, d) + x + ac;
a := ROTATE_LEFT(a, s);
a := a + b;
end;
procedure HH(var a: UINT4; b, c, d, x, s, ac: UINT4);
begin
a := a + _H(b, c, d) + x + ac;
a := ROTATE_LEFT(a, s);
a := a + b;
end;
procedure II(var a: UINT4; b, c, d, x, s, ac: UINT4);
begin
a := a + _I(b, c, d) + x + ac;
a := ROTATE_LEFT(a, s);
a := a + b;
end;
procedure MD5Encode(Output: PByteArray; Input: PUINT4Array; Len: LongWord);
var
i, j: LongWord;
begin
j := 0;
i := 0;
while j < Len do
begin
output[j] := Byte(input[i] and $FF);
output[j + 1] := Byte((input[i] shr 8) and $FF);
output[j + 2] := Byte((input[i] shr 16) and $FF);
output[j + 3] := Byte((input[i] shr 24) and $FF);
Inc(j, 4);
Inc(i);
end;
end;
procedure MD5Decode(Output: PUINT4Array; Input: PByteArray; Len: LongWord);
var
i, j: LongWord;
begin
j := 0;
i := 0;
while j < Len do
begin
Output[i] := UINT4(input[j]) or (UINT4(input[j + 1]) shl 8) or
(UINT4(input[j + 2]) shl 16) or (UINT4(input[j + 3]) shl 24);
Inc(j, 4);
Inc(i);
end;
end;
procedure MD5_memcpy(Output: PByteArray; Input: PByteArray; Len: LongWord);
begin
Move(Input^, Output^, Len);
end;
procedure MD5_memset(Output: PByteArray; Value: Integer; Len: LongWord);
begin
FillChar(Output^, Len, Byte(Value));
end;
procedure MD5Transform(State: PArray4UINT4; Buffer: PArray64Byte);
var
a, b, c, d: UINT4;
x: array[0..15] of UINT4;
begin
a := State[0];
b := State[1];
c := State[2];
d := State[3];
MD5Decode(PUINT4Array(@x), PByteArray(Buffer), 64);
FF(a, b, c, d, x[0], S11, $D76AA478);
FF(d, a, b, c, x[1], S12, $E8C7B756);
FF(c, d, a, b, x[2], S13, $242070DB);
FF(b, c, d, a, x[3], S14, $C1BDCEEE);
FF(a, b, c, d, x[4], S11, $F57C0FAF);
FF(d, a, b, c, x[5], S12, $4787C62A);
FF(c, d, a, b, x[6], S13, $A8304613);
FF(b, c, d, a, x[7], S14, $FD469501);
FF(a, b, c, d, x[8], S11, $698098D8);
FF(d, a, b, c, x[9], S12, $8B44F7AF);
FF(c, d, a, b, x[10], S13, $FFFF5BB1);
FF(b, c, d, a, x[11], S14, $895CD7BE);
FF(a, b, c, d, x[12], S11, $6B901122);
FF(d, a, b, c, x[13], S12, $FD987193);
FF(c, d, a, b, x[14], S13, $A679438E);
FF(b, c, d, a, x[15], S14, $49B40821);
GG(a, b, c, d, x[1], S21, $F61E2562);
GG(d, a, b, c, x[6], S22, $C040B340);
GG(c, d, a, b, x[11], S23, $265E5A51);
GG(b, c, d, a, x[0], S24, $E9B6C7AA);
GG(a, b, c, d, x[5], S21, $D62F105D);
GG(d, a, b, c, x[10], S22, $2441453);
GG(c, d, a, b, x[15], S23, $D8A1E681);
GG(b, c, d, a, x[4], S24, $E7D3FBC8);
GG(a, b, c, d, x[9], S21, $21E1CDE6);
GG(d, a, b, c, x[14], S22, $C33707D6);
GG(c, d, a, b, x[3], S23, $F4D50D87);
GG(b, c, d, a, x[8], S24, $455A14ED);
GG(a, b, c, d, x[13], S21, $A9E3E905);
GG(d, a, b, c, x[2], S22, $FCEFA3F8);
GG(c, d, a, b, x[7], S23, $676F02D9);
GG(b, c, d, a, x[12], S24, $8D2A4C8A);
HH(a, b, c, d, x[5], S31, $FFFA3942);
HH(d, a, b, c, x[8], S32, $8771F681);
HH(c, d, a, b, x[11], S33, $6D9D6122);
HH(b, c, d, a, x[14], S34, $FDE5380C);
HH(a, b, c, d, x[1], S31, $A4BEEA44);
HH(d, a, b, c, x[4], S32, $4BDECFA9);
HH(c, d, a, b, x[7], S33, $F6BB4B60);
HH(b, c, d, a, x[10], S34, $BEBFBC70);
HH(a, b, c, d, x[13], S31, $289B7EC6);
HH(d, a, b, c, x[0], S32, $EAA127FA);
HH(c, d, a, b, x[3], S33, $D4EF3085);
HH(b, c, d, a, x[6], S34, $4881D05);
HH(a, b, c, d, x[9], S31, $D9D4D039);
HH(d, a, b, c, x[12], S32, $E6DB99E5);
HH(c, d, a, b, x[15], S33, $1FA27CF8);
HH(b, c, d, a, x[2], S34, $C4AC5665);
II(a, b, c, d, x[0], S41, $F4292244);
II(d, a, b, c, x[7], S42, $432AFF97);
II(c, d, a, b, x[14], S43, $AB9423A7);
II(b, c, d, a, x[5], S44, $FC93A039);
II(a, b, c, d, x[12], S41, $655B59C3);
II(d, a, b, c, x[3], S42, $8F0CCC92);
II(c, d, a, b, x[10], S43, $FFEFF47D);
II(b, c, d, a, x[1], S44, $85845DD1);
II(a, b, c, d, x[8], S41, $6FA87E4F);
II(d, a, b, c, x[15], S42, $FE2CE6E0);
II(c, d, a, b, x[6], S43, $A3014314);
II(b, c, d, a, x[13], S44, $4E0811A1);
II(a, b, c, d, x[4], S41, $F7537E82);
II(d, a, b, c, x[11], S42, $BD3AF235);
II(c, d, a, b, x[2], S43, $2AD7D2BB);
II(b, c, d, a, x[9], S44, $EB86D391);
Inc(State[0], a);
Inc(State[1], b);
Inc(State[2], c);
Inc(State[3], d);
MD5_memset(PByteArray(@x), 0, SizeOf(x));
end;
procedure MD5Init(var Context: TMD5Context);
begin
FillChar(Context, SizeOf(Context), 0);
Context.state[0] := $67452301;
Context.state[1] := $EFCDAB89;
Context.state[2] := $98BADCFE;
Context.state[3] := $10325476;
end;
procedure MD5Update(var Context: TMD5Context; Input: PByteArray; InputLen:
LongWord);
var
i, index, partLen: LongWord;
begin
index := LongWord((context.count[0] shr 3) and $3F);
Inc(Context.count[0], UINT4(InputLen) shl 3);
if Context.count[0] < UINT4(InputLen) shl 3 then
Inc(Context.count[1]);
Inc(Context.count[1], UINT4(InputLen) shr 29);
partLen := 64 - index;
if inputLen >= partLen then
begin
MD5_memcpy(PByteArray(@Context.buffer[index]), Input, PartLen);
MD5Transform(@Context.state, @Context.buffer);
i := partLen;
while i + 63 < inputLen do
begin
MD5Transform(@Context.state, PArray64Byte(@Input[i]));
Inc(i, 64);
end;
index := 0;
end
else
i := 0;
MD5_memcpy(PByteArray(@Context.buffer[index]), PByteArray(@Input[i]), inputLen
- i);
end;
procedure MD5Final(var Digest: TMD5Digest; var Context: TMD5Context);
var
bits: array[0..7] of Byte;
index, padLen: LongWord;
begin
MD5Encode(PByteArray(@bits), PUINT4Array(@Context.count), 8);
index := LongWord((Context.count[0] shr 3) and $3F);
if index < 56 then
padLen := 56 - index
else
padLen := 120 - index;
MD5Update(Context, PByteArray(@PADDING), padLen);
MD5Update(Context, PByteArray(@Bits), 8);
MD5Encode(PByteArray(@Digest), PUINT4Array(@Context.state), 16);
MD5_memset(PByteArray(@Context), 0, SizeOf(Context));
end;
function MD5DigestToStr(const Digest: TMD5Digest): string;
var
i: Integer;
begin
Result := '';
for i := 0 to 15 do
Result := Result + IntToHex(Digest.v[i], 2);
end;
function MD5String(const S: string): TMD5Digest;
begin
Result := MD5Buffer(PChar(S)^, Length(S));
end;
function MD5File(const FileName: string): TMD5Digest;
var
F: TFileStream;
begin
F := TFileStream.Create(FileName, fmOpenRead);
try
Result := MD5Stream(F);
finally
F.Free;
end;
end;
function MD5Stream(const Stream: TStream): TMD5Digest;
var
Context: TMD5Context;
Buffer: array[0..4095] of Byte;
Size: Integer;
ReadBytes: Integer;
TotalBytes: Integer;
SavePos: Integer;
begin
MD5Init(Context);
Size := Stream.Size;
SavePos := Stream.Position;
TotalBytes := 0;
try
Stream.Seek(0, soFromBeginning);
repeat
ReadBytes := Stream.Read(Buffer, SizeOf(Buffer));
Inc(TotalBytes, ReadBytes);
MD5Update(Context, @Buffer, ReadBytes);
until (ReadBytes = 0) or (TotalBytes = Size);
finally
Stream.Seek(SavePos, soFromBeginning);
end;
MD5Final(Result, Context);
end;
function MD5Buffer(const Buffer; Size: Integer): TMD5Digest;
var
Context: TMD5Context;
begin
MD5Init(Context);
MD5Update(Context, PByteArray(@Buffer), Size);
MD5Final(Result, Context);
end;
function MD5DigestCompare(const Digest1, Digest2: TMD5Digest): Boolean;
begin
Result := False;
if Digest1.A <> Digest2.A then
Exit;
if Digest1.B <> Digest2.B then
Exit;
if Digest1.C <> Digest2.C then
Exit;
if Digest1.D <> Digest2.D then
Exit;
Result := True;
end;
end.
А ваще ищи в инете, там этого добра до фига)))
З.Ы. сохраняешль код в файл UMD5.pas и пропиываешь его в uses. Для шифрования делай так:)
LowerCase(MD5DigestToStr(MD5String('Здесь зашифрованная строка')))
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