BIP Draft: ChillDKG: Distributed Key Generation for FROST

.typos.toml

@@ -22,6 +22,7 @@ extend-ignore-re = [
 [default.extend-words]
 # NOTE: use here for false-positives
 anc = "anc"
+ges = "ges"
 PSBT = "PSBT"
 ser = "ser"
 # Names

bip-chilldkg/COPYING

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) The ChillDKG authors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

bip-chilldkg/all.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -euo pipefail
+
+./update-pydoc.sh
+
+cd python || exit 1
+./tests.sh
+./example.py

bip-chilldkg/images/Makefile

@@ -0,0 +1,4 @@
+all: chilldkg-sequence.png
+
+chilldkg-sequence.png: chilldkg-sequence.txt
+	cat chilldkg-sequence.txt  | plantuml -pipe > chilldkg-sequence.png

bip-chilldkg/images/chilldkg-sequence.txt

@@ -0,0 +1,22 @@
+@startuml
+skinparam sequenceMessageAlign center
+participant Participant
+participant Coordinator
+
+group Generation of host public keys
+rnote over Participant: hostpubkey_gen(hostseckey)
+Participant->Coordinator: hostpubkey (33 B)
+end
+
+group Session
+Coordinator->Participant: hostpubkeys, t (33n+4 B)
+rnote over Participant: participant_step1(...)
+Participant->Coordinator: pmsg1 (33t+32n+97 B)
+rnote over Coordinator: coordinator_step1(...)
+Coordinator->Participant: cmsg1 (33(t-1)+162n B)
+rnote over Participant: participant_step2(...)
+Participant->Coordinator: pmsg2 (64 B)
+rnote over Coordinator: coordinator_finalize(...)
+Coordinator->Participant: cmsg2 (64n B)
+rnote over Participant: participant_finalize(...)
+end

bip-chilldkg/python/.ruff.toml

@@ -0,0 +1,12 @@
+# Exclude vendored package.
+extend-exclude = ["secp256k1lab/**"]
+
+[lint]
+extend-ignore = [
+  # We catch "Exception" for good reasons.
+  "BLE001",
+  # Too many false positives (https://github.com/astral-sh/ruff/issues/7847).
+  "B023",
+  # We sort __all__ manually.
+  "RUF022",
+]

bip-chilldkg/python/chilldkg_ref/__init__.py

@@ -0,0 +1,7 @@
+import sys
+from pathlib import Path
+
+__all__ = ["chilldkg"]
+
+# Prefer the vendored copy of secp256k1lab.
+sys.path.insert(0, str(Path(__file__).parent / "../secp256k1lab/src"))