diff options
Diffstat (limited to 'src/crack.rs')
-rw-r--r-- | src/crack.rs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/crack.rs b/src/crack.rs index 92950c4..b351249 100644 --- a/src/crack.rs +++ b/src/crack.rs @@ -386,6 +386,21 @@ pub fn clone_mersenne_twister_from_output (outputs: &[u32]) -> MersenneTwister { return MersenneTwister::from_seed((state, 0)); } +pub fn recover_16_bit_mt19937_key (ciphertext: &[u8], suffix: &[u8]) -> Option<u16> { + for _key in 0..65536u32 { + let key = _key as u16; + let plaintext = ::random::mt19937_stream_cipher( + ciphertext, + key as u32 + ); + if &plaintext[(ciphertext.len() - suffix.len())..] == suffix { + return Some(key); + } + } + + return None; +} + fn crack_single_byte_xor_with_confidence (input: &[u8]) -> (u8, f64) { let mut min_diff = 100.0; let mut best_key = 0; |