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Add crypto exercise
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Valentin Brandl
2018-11-27 22:28:37 +01:00
parent 7d9dd66f1a
commit ff5bbc1a8a
51 changed files with 364 additions and 0 deletions
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39
school/intro-crypto/uebung/05/p/src/main.rs Normal file
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const P: [usize; 32] = [
16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31, 10, 2, 8, 24, 14, 32, 27, 3, 9, 19,
13, 30, 6, 22, 11, 4, 25,
];
fn p<T: Copy + Default>(i: [T; 32]) -> [T; 32] {
let mut res: [T; 32] = [T::default(); 32];
for (i, p) in i.iter().zip(P.iter()) {
res[*p - 1] = *i;
}
res
}
fn main() {
let i: [u8; 32] = [
1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0,
0, 0,
];
p(i).iter().for_each(|i| print!("{}", i));
println!();
let p = &[
true, false, false, false, false, false, true, false, false, true, false, true, true,
false, false, true, true, true, false, true, false, true, true, true, false, false, true,
true, true, false, true, true,
];
let l0 = &[
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
true, true,
];
p.iter()
.zip(l0.iter())
.map(|(a, b)| a ^ b)
.map(|x| if x { '1' } else { '0' })
.for_each(|x| print!("{}", x));
println!();
}