xoring

how do i encrypt things that are say 10 characters long with a key that is 5. like this

char string[10];
char key[5];

string=string^key;

only encrypts half of string.

Go through each character and XOR it with the string and uh... use the key over again for all leftover sets of characters of string...?

I don't know, that's a pretty simple encryption...

Use the key twice. Or extend the key.

>string=string^key;

Isn't this going wrong? The variables string and key are addresses. For encryption you need a loop and xor each character.

Code:

---

#define KLEN 10
#defien VLEN 200



char val[2002];
char key[322];

char *pv = val;
char *pk = key;

while(*pv) {
    *pv ^= *pk;
    if(*pk)
        pk++;
    else   
        pk = key;
    pv++;
}

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