diff options
| -rw-r--r-- | src/aes.rs | 19 |
1 files changed, 12 insertions, 7 deletions
@@ -56,13 +56,7 @@ pub fn find_aes_128_ecb_encrypted_string (inputs: &[Vec<u8>]) -> Vec<u8> { let mut max_dups = 0; let mut found = vec![]; for input in inputs { - let mut set = HashSet::new(); - let mut dups = 0; - for block in input.chunks(16) { - if !set.insert(block) { - dups += 1; - } - } + let dups = count_duplicate_blocks(input); if dups > max_dups { max_dups = dups; found = input.clone(); @@ -71,6 +65,17 @@ pub fn find_aes_128_ecb_encrypted_string (inputs: &[Vec<u8>]) -> Vec<u8> { return found; } +fn count_duplicate_blocks (input: &[u8]) -> usize { + let mut set = HashSet::new(); + let mut dups = 0; + for block in input.chunks(16) { + if !set.insert(block) { + dups += 1; + } + } + return dups; +} + #[test] fn test_encrypt_decrypt () { let plaintext = b"Summertime and the wind is blowing outside in lower \ |