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Programming-Idioms

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Idiom #307 XOR encrypt/decrypt string

Create a function that XOR encrypts/decrypts a string

sysutils
encrypted := xorstring(key, original);
from itertools import cycle
def xor(data, key):
	return ''.join(chr(ord(x)^ord(y)) for x,y in zip(data, cycle(key)))
def xor_string(str, key)
  ords = key.chars.map(&:ord).cycle
  str.chars.zip(ords).inject(""){|res, (c,o)| res << (c.ord ^ o) }
end
fn xor(s: Vec<u8>, key: &[u8]) -> Vec<u8> {
    let mut b = key.iter().cycle();
    s.into_iter().map(|x| x ^ b.next().unwrap()).collect()
}

New implementation...
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