JavaScript

ARC4 PRNG (Pseudo Random Number Generator)

See more Encryption Examples

Uses the ARC4 stream encryption algorithm as a pseudo random number generator. JavaScript

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

var crypt = new CkCrypt2();

// Set the encryption algorithm to ARC4:	
crypt.CryptAlgorithm = "arc4";

// We want the encrypted output to be a hex-encoded string.
crypt.EncodingMode = "hex";

var key = "000102030405060708090A0B0C0D0E0F";
var data = "12345678";

// Key length is 128 bits in this example.
crypt.KeyLength = 128;
crypt.SetEncodedKey(key,"hex");

// Generate 16 "random" 8-byte blocks, encoded as hex strings.
// This example will generate the identical output each time
// it is run.
var cipherHex;
var i;
for (i = 0; i <= 15; i++) {
    cipherHex = crypt.EncryptStringENC(data);
    console.log(data);
    console.log(cipherHex);
    data = cipherHex;
}