_ Git - rust-lightning/blob - src/util/sha2.rs

   1 #[cfg(not(feature = "fuzztarget"))]
   2 pub use crypto::sha2::Sha256;
   3
   4 #[cfg(feature = "fuzztarget")]
   5 mod fuzzy_sha {
   6         use crypto::digest::Digest;
   7
   8         pub struct Sha256 {
   9                 state: u8,
  10         }
  11
  12         impl Sha256 {
  13                 pub fn new() -> Sha256 {
  14                         Sha256 {
  15                                 state: 0,
  16                         }
  17                 }
  18         }
  19
  20         impl Digest for Sha256 {
  21                 fn result(&mut self, data: &mut [u8]) {
  22                         data[0] = self.state;
  23                         for i in 1..32 {
  24                                 data[i] = 0;
  25                         }
  26                 }
  27
  28                 fn input(&mut self, data: &[u8]) { for i in data { self.state ^= i; } }
  29                 fn reset(&mut self) { self.state = 0; }
  30                 fn output_bits(&self) -> usize { 256 }
  31                 fn block_size(&self) -> usize { 64 }
  32         }
  33 }
  34 #[cfg(feature = "fuzztarget")]
  35 pub use self::fuzzy_sha::Sha256;