hi
can anyone tell me how i would implement this file into my C project so i can encrypt my API strings? any help is appreciated, thanx

static void swap_byte(unsigned char *a, unsigned char *b);

void prepare_key(unsigned char *key_data_ptr, int key_data_len,
rc4_key *key)
{
unsigned char swapByte;
unsigned char index1;
unsigned char index2;
unsigned char* state;
short counter;

state = &key->state[0];
for(counter = 0; counter < 256; counter++)
state[counter] = counter;
key->x = 0;
key->y = 0;
index1 = 0;
index2 = 0;
for(counter = 0; counter < 256; counter++)
{
index2 = (key_data_ptr[index1] + state[counter] +
index2) % 256;
swap_byte(&state[counter], &state[index2]);

index1 = (index1 + 1) % key_data_len;
}
}

void rc4(unsigned char *buffer_ptr, int buffer_len, rc4_key *key)
{
unsigned char x;
unsigned char y;
unsigned char* state;
unsigned char xorIndex;
short counter;

x = key->x;
y = key->y;

state = &key->state[0];
for(counter = 0; counter < buffer_len; counter ++)
{
x = (x + 1) % 256;
y = (state

* + y) % 256;

swap_byte(&state

* , &state[y]);

s;FFO(ko
xorIndex = (state

* + state[y]) % 256;

>Dm;Tj^9!
buffer_ptr[counter] ^= state[xorIndex];
}
key->x = x;
key->y = y;
}

static void swap_byte(unsigned char *a, unsigned char *b)
{
unsigned char swapByte;

swapByte = *a;
*a = *b;
*b = swapByte;
}
typedef struct rc4_key
{
unsigned char state[256];
unsigned char x;
unsigned char y;
} rc4_key;
void prepare_key(unsigned char *key_data_ptr,int key_data_len,
rc4_key *key);
void rc4(unsigned char *buffer_ptr,int buffer_len,rc4_key * key);

i know i have to #include RC4.c but im just thinking of how then to code the part that goes in my main.c , things like

ShellExecute(0, "open",sysdir ,buf, NULL, SW_SHOW);

i want to encrypt, thanx again for any help