From b2772ea82b1fbd5c382e5fdfb5f6466fb6a389b4 Mon Sep 17 00:00:00 2001 From: Matt Corallo Date: Thu, 26 Apr 2018 19:44:24 -0400 Subject: [PATCH] fuzztarget sha -> XOR --- src/util/sha2.rs | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/src/util/sha2.rs b/src/util/sha2.rs index 31616f507..2c9eab932 100644 --- a/src/util/sha2.rs +++ b/src/util/sha2.rs @@ -4,33 +4,31 @@ pub use crypto::sha2::Sha256; #[cfg(feature = "fuzztarget")] mod fuzzy_sha { use crypto::digest::Digest; - use crypto::sha2; - #[derive(Clone, Copy)] pub struct Sha256 { - state: sha2::Sha256, + state: u8, } impl Sha256 { pub fn new() -> Sha256 { Sha256 { - state: sha2::Sha256::new(), + state: 0, } } } impl Digest for Sha256 { fn result(&mut self, data: &mut [u8]) { - self.state.result(data); + data[0] = self.state; for i in 1..32 { data[i] = 0; } } - fn input(&mut self, data: &[u8]) { self.state.input(data); } - fn reset(&mut self) { self.state.reset(); } - fn output_bits(&self) -> usize { self.state.output_bits() } - fn block_size(&self) -> usize { self.state.block_size() } + fn input(&mut self, data: &[u8]) { for i in data { self.state ^= i; } } + fn reset(&mut self) { self.state = 0; } + fn output_bits(&self) -> usize { 256 } + fn block_size(&self) -> usize { 64 } } } #[cfg(feature = "fuzztarget")] -- 2.39.5