Add DSTs to Tributary TX sig_hash functions

Prevents conflicts with other systems/other parts of the Tributary.
serai-dex · Aug 21, 2023 · 64bdc50 · 64bdc50
1 parent 0087605
commit 64bdc50
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Showing 2 changed files with 14 additions and 2 deletions.
diff --git a/coordinator/tributary/src/tendermint/tx.rs b/coordinator/tributary/src/tendermint/tx.rs
@@ -172,7 +172,13 @@ impl Transaction for TendermintTx {
         let signature = &vote.sig.signature;
         <Ristretto as Ciphersuite>::F::from_bytes_mod_order_wide(
           &Blake2b512::digest(
-            [genesis.as_ref(), &self.hash(), signature.R.to_bytes().as_ref()].concat(),
+            [
+              b"Tributary Slash Vote",
+              genesis.as_ref(),
+              &self.hash(),
+              signature.R.to_bytes().as_ref(),
+            ]
+            .concat(),
           )
           .into(),
         )

diff --git a/coordinator/tributary/src/transaction.rs b/coordinator/tributary/src/transaction.rs
@@ -126,7 +126,13 @@ pub trait Transaction: 'static + Send + Sync + Clone + Eq + Debug + ReadWrite {
       TransactionKind::Signed(Signed { signature, .. }) => {
         <Ristretto as Ciphersuite>::F::from_bytes_mod_order_wide(
           &Blake2b512::digest(
-            [genesis.as_ref(), &self.hash(), signature.R.to_bytes().as_ref()].concat(),
+            [
+              b"Tributary Signed Transaction",
+              genesis.as_ref(),
+              &self.hash(),
+              signature.R.to_bytes().as_ref(),
+            ]
+            .concat(),
           )
           .into(),
         )