First draft of key resharing protocol

entropyxyz · Jan 15, 2024 · e04d225 · e04d225
1 parent f2a8cff
commit e04d225
Show file tree

Hide file tree

Showing 5 changed files with 626 additions and 13 deletions.
diff --git a/synedrion/src/cggmp21/protocols.rs b/synedrion/src/cggmp21/protocols.rs
@@ -4,6 +4,7 @@ pub(crate) mod interactive_signing;
 pub(crate) mod key_gen;
 pub(crate) mod key_init;
 pub(crate) mod key_refresh;
+pub(crate) mod key_resharing;
 pub(crate) mod presigning;
 pub(crate) mod signing;
 mod threshold;

diff --git a/synedrion/src/cggmp21/protocols/generic.rs b/synedrion/src/cggmp21/protocols/generic.rs
@@ -126,6 +126,7 @@ pub(crate) enum FinalizationRequirement {
     AllBroadcasts,
     AllDms,
     AllBroadcastsAndDms,
+    Custom,
 }
 
 pub(crate) trait Finalizable: BroadcastRound + DirectRound {
@@ -150,6 +151,7 @@ pub(crate) trait Finalizable: BroadcastRound + DirectRound {
                     && contains_all_except(dm_payloads, self.num_parties(), self.party_idx())
                     && contains_all_except(dm_artifacts, self.num_parties(), self.party_idx())
             }
+            FinalizationRequirement::Custom => panic!("`can_finalize` must be implemented"),
         }
     }
 
@@ -188,6 +190,7 @@ pub(crate) trait Finalizable: BroadcastRound + DirectRound {
                 ));
                 missing
             }
+            FinalizationRequirement::Custom => panic!("`missing_payloads` must be implemented"),
         }
     }
 }