(Ruby) ARC4 PRNG (Pseudo Random Number Generator)
Uses the ARC4 stream encryption algorithm as a pseudo random number generator.
require 'chilkat'
# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.
crypt = Chilkat::CkCrypt2.new()
# Set the encryption algorithm to ARC4:
crypt.put_CryptAlgorithm("arc4")
# We want the encrypted output to be a hex-encoded string.
crypt.put_EncodingMode("hex")
key = "000102030405060708090A0B0C0D0E0F"
data = "12345678"
# Key length is 128 bits in this example.
crypt.put_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.
for i in 0 .. 15
cipherHex = crypt.encryptStringENC(data)
print data + "\n";
print cipherHex + "\n";
data = cipherHex
end
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