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| #include <cstdlib>
#include <iostream>
#include <string>
#include <sstream>
#define EXPORT extern "C" __declspec(dllexport)
// Parametres
using namespace std;
// Déclaration des variables
unsigned short int i;
unsigned short int y;
short int k;
short unsigned int z;
unsigned int t;
int h[5];
int a;
int b;
int c;
int d;
int e;
unsigned short int mask;
unsigned int s;
unsigned int K;
unsigned int temp;
unsigned int ft;
string retour;
//string nom = "Mou";
//string taille = "che";
std::string mot;
union u_init
{
unsigned short int entier[16];
char carac[64];
};
unsigned int S(unsigned short int n, unsigned int x)
{
x = (x << n)|(x >> 32-n);
return x;
}
EXPORT char* hash(char* mot)
{
// déclaration des variables
union u_init init;
// mise en place du mots
z = 0;
i = 8*9;
k = 448 - (i + 1);
if (k < 0)
{
k += k + 512;
}
char * nomchar = new char[40];
strncpy( nomchar, mot, 40 );
y = i/8;
y = y-1;
while (z <= y)
{
init.carac[z] = nomchar[z];
++z;
}
init.carac[z] = 0x80;
z += 1;
y = k/16;
y = y + z;
while ( z <= y)
{
init.carac[z] = 0x00;
z += 1;
}
y = 32 - (i/8) + 8;
init.carac[y] = i;
h[0] = 0x67452301;
h[1] = 0xefcdab89;
h[2] = 0x98badcfe;
h[3] = 0x10325476;
h[4] = 0xc3d2e1f0;
// traitement
a = h[0];
b = h[1];
c = h[2];
d = h[3];
e = h[4];
mask = 0x0000000F;
t = 0;
while (t<=79)
{
if (t <= 19)
{
K = 0x5A827999;
}
if ((t >19) && (t <= 59))
{
K = 0x8F1BBCDC;
}
if ((t >60) && (t <= 79))
{
K = 0xCA62C1D6;
}
s = t&mask;
if (t >=16)
{
init.carac[s] = S(1,(init.entier[(s+13)&mask]) xor (init.entier[(s+8)&mask]) xor (init.entier[(s+2)&mask]) xor (init.entier[s]));
}
if (t<=19)
{
ft = (b&c)|((!b)&d);
}
if ((t >= 20) && (t <= 39))
{
ft = b xor c xor d;
}
if ((t >= 40) && (t <= 59))
{
ft = (b&c)|(b&d)|(c&d);
}
if (t >=60)
{
ft = b xor c xor d;
}
temp = S(5,a) + ft + e + init.carac[s] + K;
e = d;
d = c;
c = S(30,b);
b = a;
a = temp;
if (t == 79)
{
h[0] = h[0]+a;
h[1] = h[1]+b;
h[2] = h[2]+c;
h[3] = h[3]+d;
h[4] = h[4]+e;
std::ostringstream retour;
retour << std::hex << h[0] << h[1] << h[2] << h[3] << h[4];
std::string test(retour.str());
string::size_type len;
len = test.length();
void* teest;
char * out;
teest = malloc(sizeof(char)*40);
out = (char*)teest;
strncpy(out, test.c_str(), len);
return teest;
}
t = t+1;
}
} |
