El 22/10/11 12:40, "Luis L. Rodríguez Oro" escribió:
El 22/10/11 11:05, pancake escribió:
What do you want from us? Implement a criptografic algorithm for you?
There are several criptographic algorithms to do that. Check wikipedia.
If you do not specify the algo we cant help, as long as its your own
choice and your choice to implement it from scratch or use any of the
available opensource libraries out there.
On 22/10/2011, at 16:52, "Luis L. Rodríguez Oro"<[email protected]> wrote:
I need encrypt and decrypt come text:
string decrypt(string text, string password){
// code
return decrypted;
}
string encrypt(string text, string password){
// code
return encrypted;
}
void main(){
string text = "hello word";
string pass = "p4ssw0rd";
string enc = encrypt(text, pass);
print("%s\", enc);
string orig = decrypt(enc, pass);
print("%s\",orig);
}
I appreciate any help.
Thanks for every body.
Luis
I only need encrypt some password to save to configuration.conf, I
need decrypt the password to used, MD5 don't work to me. I prefer use
some library.
I've only used vala for 3 days, before that PHP.
Where is the encripted password and how decript it?
http://en.wikipedia.org/wiki/RC4
http://es.wikipedia.org/wiki/RC4
int S[255];
int i;
int j;
void swap(int i, int j) {
int temp = S[i];
S[i] = S[j];
S[j] = temp;
}
/* KSA */
void rc4_init(string key) {
int key_length = key.length;
for (i = 0; i < 256; i++)
S[i] = i;
for (i = j =0; i < 256; i++) {
j = (j + key[i % key_length] + S[i]) & 255;
swap(i, j);
}
i = j =0;
}
/* PRGA */
int rc4_output() {
i = (i + 1) & 255;
j = (j + S[i]) & 255;
swap(i, j);
return S[(S[i] + S[j]) & 255];
}
void main() {
string pass ="Key";
string text = "Plaintext";
rc4_init(pass);
unichar c;
//var p;
for (int i = 0; text.get_next_char (ref i, out c);) {
int data = int.parse("%d".printf((char) c));
var keystream = rc4_output();
var p = data ^ keystream;
print("%d ",p);
}
print("\n");
}
Fin a la injusticia, LIBERTAD AHORA A NUESTROS CINCO COMPATRIOTAS QUE SE
ENCUENTRAN INJUSTAMENTE EN PRISIONES DE LOS EEUU!
http://www.antiterroristas.cu
http://justiciaparaloscinco.wordpress.com
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