Remove enc, R and nonce from note hash (#124)

dusk-network · Feb 2, 2023 · 04c423a · 04c423a
1 parent 804eed2
commit 04c423a
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+
+- Remove `enc`, `R` and `nonce` from note hash [#123]
+
 ## [0.18.1] - 2023-01-20
 
 ## Added

diff --git a/src/note.rs b/src/note.rs
@@ -244,25 +244,17 @@ impl Note {
     }
 
     /// Return the internal representation of scalars to be hashed
-    pub fn hash_inputs(&self) -> [BlsScalar; 12] {
+    pub fn hash_inputs(&self) -> [BlsScalar; 6] {
         let value_commitment = self.value_commitment().to_hash_inputs();
         let pk_r = self.stealth_address().pk_r().as_ref().to_hash_inputs();
-        let R = self.stealth_address().R().to_hash_inputs();
-        let cipher = self.encrypted_data.cipher();
 
         [
             BlsScalar::from(self.note_type as u64),
             value_commitment[0],
             value_commitment[1],
-            self.nonce,
             pk_r[0],
             pk_r[1],
-            R[0],
-            R[1],
             BlsScalar::from(self.pos),
-            cipher[0],
-            cipher[1],
-            cipher[2],
         ]
     }