commit 445c90af2747487d6acc46f9b1dee16351c98b22
parent 0c3cbf905bd2f2f11d5321280910ff53120df87a
Author: nickfarrow <nick@nickfarrow.com>
Date: Thu, 29 Sep 2022 09:57:45 +1000
file rearrange
Diffstat:
24 files changed, 2567 insertions(+), 2144 deletions(-)
diff --git a/.gitignore b/.gitignore
@@ -1,2 +1,3 @@
/target
-roast-signer/target/
+roastlib/target/
+server-client/target/
diff --git a/Cargo.toml b/Cargo.toml
@@ -1,22 +0,0 @@
-[package]
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-version = "0.1.0"
-edition = "2021"
-
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-
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-
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diff --git a/README.md b/README.md
@@ -2,9 +2,10 @@ Experimental
-> unfishished and not ready for use
## todo
-Complete endpoints for both ROAST server (coordinator) and signer clients using new layout, then use them to communicate a test session.
+Finish roastlib and test without specifying any io methods from client to server
+
+Create communication endpoints for both ROAST server (coordinator) and signer clients using new layout, then use them to communicate a test session.
* Current plan is to communicate via http requests and rocket with some mutable state for client and server.
-* This would be powerful for later things if we get it right..
Make agnostic to the threshold signature scheme that is used
## ROAST Paper Notes
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diff --git a/endpoints/Cargo.toml b/endpoints/Cargo.toml
@@ -0,0 +1,20 @@
+[package]
+name = "roast-signer"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+schnorr_fun = { path = "../../secp256kfun/schnorr_fun", features = ["serde"] }
+secp256kfun = { path = "../../secp256kfun/secp256kfun", features = ["serde"] }
+rand = "0.8.5"
+sha2 = "0.10"
+rng = "0.1.0"
+clightningrpc = "0.2.0"
+
+# for async
+rocket = "0.5.0-rc.2"
+thiserror = "1.0.21"
+reqwest = "0.11.12"
+serde_json = "1.0.85"
diff --git a/endpoints/src/client.rs b/endpoints/src/client.rs
@@ -0,0 +1,67 @@
+#![feature(decl_macro)]
+
+#[macro_use]
+extern crate rocket;
+use roast_signer::client::RoastClient;
+use roast_signer::frost;
+
+use rocket::State;
+use schnorr_fun::{
+ frost::{Frost, XOnlyFrostKey},
+ nonce::Deterministic,
+ Message, Schnorr,
+};
+use secp256kfun::Scalar;
+use sha2::Sha256;
+use std::{error::Error, sync::Mutex};
+
+#[get("/sign?<nonce_set>")]
+pub fn sign<'a>(
+ signer_db: &State<Mutex<RoastClient<'a, Sha256, Deterministic<Sha256>>>>,
+ nonce_set: String,
+) -> () {
+}
+
+#[rocket::main]
+// Here we need to spawn n_parties of rockets under different ports and launch?
+async fn main() -> Result<(), Box<dyn Error>> {
+ let message = Message::plain("test", b"test");
+ let (secret_shares, frost_keys) = frost::frost_keygen(3, 5);
+ frost_keys
+ .iter()
+ .zip(secret_shares)
+ .enumerate()
+ .map(|(i, (frost_key, secret_share))| {
+ create_roast_client(frost_key.clone(), i, secret_share, [0].as_slice(), message)
+ });
+ Ok(())
+}
+
+fn create_roast_client<'a>(
+ frost_key: XOnlyFrostKey,
+ my_index: usize,
+ secret_share: Scalar,
+ initial_nonce_sid: &[u8],
+ message: Message<'a>,
+) -> Result<(), Box<dyn Error>> {
+ rocket::build()
+ .manage(Mutex::new(RoastClient::start(
+ "127.0.0.1:510".to_string(),
+ Frost::new(Schnorr::<Sha256, Deterministic<Sha256>>::new(
+ Deterministic::<Sha256>::default(),
+ )),
+ frost_key,
+ my_index,
+ secret_share,
+ initial_nonce_sid,
+ message,
+ )))
+ .mount(
+ "/",
+ routes![
+ sign, //post
+ ],
+ )
+ .launch();
+ Ok(())
+}
diff --git a/endpoints/src/coordinator.rs b/endpoints/src/coordinator.rs
@@ -0,0 +1,95 @@
+#![feature(decl_macro)]
+
+#[macro_use]
+extern crate rocket;
+
+use roast::coordinator::RoastServer;
+use rocket::{Rocket, State};
+use schnorr_fun::musig::Nonce;
+use std::{error::Error, sync::Mutex};
+
+use schnorr_fun::frost::Frost;
+use schnorr_fun::nonce::Deterministic;
+use schnorr_fun::{Message, Schnorr};
+use sha2::Sha256;
+
+// Also have optional message here
+#[get("/init?<frost_key>")]
+pub fn init(roast_db: &State<Mutex<RoastServer<Sha256, Sha256>>>, frost_key: String) {
+ let mut roast_state = roast_db.lock().expect("got lock");
+ roast_state.frost_key = serde_json::from_str(&frost_key).expect("read frost key ok");
+}
+
+#[get("/receive_signature?<sig>&<nonce>&<index>")]
+pub async fn receive_signature(
+ roast_db: &State<RoastServer<'_, Sha256, Sha256>>,
+ sig: Option<String>,
+ nonce: String,
+ index: usize,
+) -> String {
+ let roast_state = roast_db; //.lock().expect("got lock");
+ let submitted_sig = match sig {
+ Some(str) => Some(serde_json::from_str(&str).expect("valid sig str")),
+ None => None,
+ };
+ let submitted_nonce = serde_json::from_str(&nonce).expect("valid nonce str");
+ // let submitted_nonce = match nonce {
+ // Some(str) => Some(serde_json::from_str(&str).expect("valid nonce str")),
+ // None => None,
+ // };
+ roast_state
+ .receive_signature(index, submitted_sig, submitted_nonce)
+ .await;
+
+ format!("done")
+}
+
+#[rocket::main]
+pub async fn main() -> () {
+ let res = rocket::build()
+ .manage(Mutex::new(RoastServer::new(
+ Frost::new(Schnorr::<Sha256, Deterministic<Sha256>>::new(
+ Deterministic::<Sha256>::default(),
+ )),
+ None,
+ Message::plain("test", b"test"),
+ )))
+ .mount("/", routes![receive_signature])
+ .launch()
+ .await;
+ ()
+}
+
+// let frost = Frost::<Sha256, Deterministic<Sha256>>::default();
+
+// let message = Message::plain("10 000 emails", b"");
+// // Create a roast server
+// let roast_coordinator =
+// roast_coordinator::RoastServer::new(frost.clone(), frost_keys[0].clone(), message);
+
+// let roast_signer1 = roast_signer::RoastClient::start(
+// roast_coordinator,
+// frost.clone(),
+// frost_keys[0].clone(),
+// 0,
+// secret_shares[0].clone(),
+// [0].as_slice(),
+// message,
+// )
+// .await;
+
+// let roast_signer1.
+
+// We need to somehow set some general methods of communication for roast signers and clients
+// Rocket API probably not the most basic? Would be cool...
+//
+
+// let roast_signer2 = roast_signer::RoastClient::start(
+// roast_coordinator,
+// frost.clone(),
+// frost_keys[0].clone(),
+// 0,
+// secret_shares[0].clone(),
+// [0].as_slice(),
+// message,
+// );
diff --git a/endpoints/src/lib.rs b/endpoints/src/lib.rs
@@ -0,0 +1,2 @@
+pub mod client;
+pub mod frost;
diff --git a/src/rocket.rs b/endpoints/src/rocket.rs
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diff --git a/roast-signer/Cargo.toml b/roast-signer/Cargo.toml
@@ -1,18 +0,0 @@
-[package]
-name = "roast-signer"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-schnorr_fun = { path = "../../secp256kfun/schnorr_fun" }
-secp256kfun = { path = "../../secp256kfun/secp256kfun" }
-rand = "0.8.5"
-sha2 = "0.10"
-rng = "0.1.0"
-clightningrpc = "0.2.0"
-
-# for async
-rocket = "0.5.0-rc.2"
-thiserror = "1.0.21"
-\ No newline at end of file
diff --git a/roast-signer/src/client.rs b/roast-signer/src/client.rs
@@ -1,130 +0,0 @@
-use std::{collections::HashMap, hash::Hash};
-
-use secp256kfun::{digest::typenum::U32, marker::Public, Scalar};
-
-use schnorr_fun::{
- frost::{Frost, XOnlyFrostKey},
- musig::{Nonce, NonceKeyPair},
- nonce::NonceGen,
- Message,
-};
-use sha2::Digest;
-
-use roast_coordinator;
-
-pub struct RoastClient<'a, H, NG> {
- roast_server: RoastServer<'a, H, NG>,
- frost: Frost<H, NG>,
- frost_key: XOnlyFrostKey,
- my_index: usize,
- secret_share: Scalar,
- message: Message<'a, Public>,
- my_nonces: Vec<NonceKeyPair>,
-}
-
-impl<'a, H: Digest + Clone + Digest<OutputSize = U32>, NG: NonceGen> RoastClient<'a, H, NG> {
- pub async fn start(
- roast_server: RoastServer<'a, H, NG>,
- frost: Frost<H, NG>,
- frost_key: XOnlyFrostKey,
- my_index: usize,
- secret_share: Scalar,
- initial_nonce_sid: &[u8],
- message: Message<'a>,
- ) -> RoastClient<'a, H, NG> {
- let initial_nonce = frost.gen_nonce(
- &secret_share,
- &initial_nonce_sid,
- Some(frost_key.public_key().normalize()),
- Some(message),
- );
-
- let (combined_sig, nonce_set) = roast_server
- .receive_signature(my_index, None, initial_nonce.public)
- .await;
-
- match combined_sig {
- Some(_) => {
- println!("got combined sig!");
- }
- None => {
- // println!("Sent partial signature {} to roast..", i)
- }
- };
- match nonce_set {
- Some(nonces) => {
- println!("Got nonces {:?}", nonces);
- }
- None => println!("No new nonces!?"),
- };
-
- // let mut my_nonces = HashMap::new();
- // my_nonces.insert(0 as usize, initial_nonce);
- let my_nonces = vec![initial_nonce];
-
- RoastClient {
- roast_server,
- frost,
- frost_key,
- my_index,
- secret_share,
- message,
- my_nonces,
- }
- }
-
- fn new_nonce(&self, sid: &[u8]) -> NonceKeyPair {
- self.frost.gen_nonce(
- &self.secret_share,
- sid,
- Some(self.frost_key.public_key().normalize()),
- Some(self.message),
- )
- }
-
- pub async fn sign(&mut self, nonce_set: Vec<(usize, Nonce)>) {
- let session = self.frost.start_sign_session(
- &self.frost_key,
- nonce_set,
- Message::plain("test", b"test"),
- );
- let my_nonce = self
- .my_nonces
- .pop()
- .expect("some nonce available to use for signing");
- let sig = self.frost.sign(
- &self.frost_key,
- &session,
- self.my_index,
- &self.secret_share,
- my_nonce,
- );
- // call server with (sig, self.new_nonce())
-
- self.my_nonces.push(self.new_nonce(&[0]));
-
- let (combined_sig, nonce_set) = self
- .roast_server
- .receive_signature(
- self.my_index,
- Some(sig),
- self.my_nonces.last().expect("some nonce").public(),
- )
- .await;
-
- match combined_sig {
- Some(_) => {
- println!("got combined sig!");
- }
- None => {
- // println!("Sent partial signature {} to roast..", i)
- }
- };
- match nonce_set {
- Some(nonces) => {
- println!("Got nonces {:?}", nonces);
- }
- None => println!("No new nonces!?"),
- };
- }
-}
diff --git a/roast-signer/src/lib.rs b/roast-signer/src/lib.rs
@@ -1 +0,0 @@
-pub mod client;
diff --git a/roast-signer/src/main.rs b/roast-signer/src/main.rs
@@ -1,24 +0,0 @@
-#![feature(decl_macro)]
-
-#[macro_use]
-extern crate rocket;
-
-use rocket::State;
-use std::{error::Error, sync::Mutex};
-
-#[post("/sign", data = "<nonce_set>")]
-pub fn sign(signer_db: State<'_, Mutex<rocket::client::RoastClient>>, nonce_set: String) -> () {}
-
-#[rocket::main]
-async fn main() -> Result<(), Box<dyn Error>> {
- rocket::ignite()
- .manage(Mutex::new(rocket::client::RoastClient {}))
- .mount(
- "/",
- routes![
- sign, //post
- ],
- )
- .launch();
- Ok(())
-}
diff --git a/Cargo.lock b/roastlib/Cargo.lock
diff --git a/roastlib/Cargo.toml b/roastlib/Cargo.toml
@@ -0,0 +1,22 @@
+[package]
+name = "roast"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+schnorr_fun = { path = "../../secp256kfun/schnorr_fun", features = ["serde"]}
+secp256kfun = { path = "../../secp256kfun/secp256kfun"}
+rand = "0.8.5"
+sha2 = "0.10"
+rng = "0.1.0"
+clightningrpc = "0.2.0"
+
+serde = { version = "1.0.117", features = ["derive"] }
+serde_json = "1.0.59"
+rocket = "0.5.0-rc.2"
+thiserror = "1.0.21"
+
+tokio = { version = "1", features = ["full"] }
+mini-redis = "0.4"
diff --git a/roastlib/src/client.rs b/roastlib/src/client.rs
@@ -0,0 +1,130 @@
+use secp256kfun::{
+ digest::typenum::U32,
+ marker::{Public, Zero},
+ Scalar,
+};
+
+use schnorr_fun::{
+ frost::{Frost, XOnlyFrostKey},
+ musig::{Nonce, NonceKeyPair},
+ nonce::NonceGen,
+ Message,
+};
+use sha2::Digest;
+
+pub struct RoastClient<'a, H, NG> {
+ frost: Frost<H, NG>,
+ frost_key: XOnlyFrostKey,
+ my_index: usize,
+ secret_share: Scalar,
+ message: Message<'a, Public>,
+ my_nonces: Vec<NonceKeyPair>,
+}
+
+impl<'a, H: Digest + Clone + Digest<OutputSize = U32>, NG: NonceGen> RoastClient<'a, H, NG> {
+ pub fn new(
+ frost: Frost<H, NG>,
+ frost_key: XOnlyFrostKey,
+ my_index: usize,
+ secret_share: Scalar,
+ initial_nonce_sid: &[u8],
+ message: Message<'a>,
+ ) -> RoastClient<'a, H, NG> {
+ let initial_nonce = frost.gen_nonce(
+ &secret_share,
+ &initial_nonce_sid,
+ Some(frost_key.public_key().normalize()),
+ Some(message),
+ );
+ let my_nonces = vec![initial_nonce];
+
+ RoastClient {
+ frost,
+ frost_key,
+ my_index,
+ secret_share,
+ message,
+ my_nonces,
+ }
+ }
+
+ fn new_nonce(&self, sid: &[u8]) -> NonceKeyPair {
+ self.frost.gen_nonce(
+ &self.secret_share,
+ sid,
+ Some(self.frost_key.public_key().normalize()),
+ Some(self.message),
+ )
+ }
+
+ pub fn start(self) -> (Option<Scalar<Public, Zero>>, Nonce) {
+ (
+ None,
+ self.my_nonces.last().expect("some nonce").clone().public(),
+ )
+ }
+
+ pub fn sign(
+ &mut self,
+ nonce_set: Vec<(usize, Nonce)>,
+ ) -> (Option<Scalar<Public, Zero>>, Nonce) {
+ let session = self.frost.start_sign_session(
+ &self.frost_key,
+ nonce_set,
+ Message::plain("test", b"test"),
+ );
+ let my_nonce = self
+ .my_nonces
+ .pop()
+ .expect("some nonce available to use for signing");
+ let sig = self.frost.sign(
+ &self.frost_key,
+ &session,
+ self.my_index,
+ &self.secret_share,
+ my_nonce,
+ );
+ // call server with (sig, self.new_nonce())
+ self.my_nonces.push(self.new_nonce(&[0]));
+
+ (
+ Some(sig),
+ self.my_nonces.last().expect("some nonce").public(),
+ )
+ }
+}
+
+// OLD HTTP TRASH
+//
+//
+// HTTP call roast_server receive
+// let (combined_sig, nonce_set) =
+// let request_url = roast_server.clone()
+// + "/init?"
+// + &serde_json::to_string(&frost_key).expect("valid serialization");
+// let response = reqwest::get(&request_url).await.expect("valid request");
+// dbg!(response);
+
+// roast_server
+// .receive_signature(my_index, None, initial_nonce.public)
+// .await;
+
+// match combined_sig {
+// Some(_) => {
+// println!("got combined sig!");
+// }
+// None => {
+// // println!("Sent partial signature {} to roast..", i)
+// }
+// };
+// match nonce_set {
+// Some(nonces) => {
+// println!("Got nonces {:?}", nonces);
+// }
+// None => println!("No new nonces!?"),
+// };
+
+// let mut my_nonces = HashMap::new();
+// my_nonces.insert(0 as usize, initial_nonce);
+
+// pub async fn sign
diff --git a/roastlib/src/coordinator.rs b/roastlib/src/coordinator.rs
@@ -0,0 +1,191 @@
+use std::{
+ collections::{HashMap, HashSet},
+ sync::{Arc, Mutex},
+};
+
+use secp256kfun::{
+ digest::typenum::U32,
+ marker::{Public, Zero},
+ Scalar,
+};
+
+use schnorr_fun::{
+ frost::{Frost, XOnlyFrostKey},
+ musig::{Nonce, NonceKeyPair},
+ nonce::NonceGen,
+ Message, Signature,
+};
+use sha2::Digest;
+
+pub struct Coordinator<'a, H, NG> {
+ pub frost: Frost<H, NG>,
+ pub frost_key: XOnlyFrostKey,
+ state: Arc<Mutex<RoastState<'a>>>,
+}
+
+pub struct RoastState<'a> {
+ message: Message<'a, Public>,
+ responsive_signers: HashSet<usize>,
+ malicious_signers: HashSet<usize>,
+ latest_nonces: HashMap<usize, Nonce>,
+ sessions: HashMap<usize, Arc<Mutex<RoastSignSession>>>,
+ session_counter: usize,
+}
+
+pub struct RoastSignSession {
+ signers: HashSet<usize>,
+ nonces: Vec<(usize, Nonce)>,
+ sig_shares: Vec<Scalar<Public, Zero>>,
+}
+
+impl<'a, H: Digest + Clone + Digest<OutputSize = U32>, NG> Coordinator<'a, H, NG> {
+ pub fn new(
+ frost: Frost<H, NG>,
+ frost_key: XOnlyFrostKey,
+ message: Message<'a, Public>,
+ ) -> Self {
+ return Self {
+ frost,
+ frost_key,
+ state: Arc::new(Mutex::new(RoastState {
+ message,
+ responsive_signers: HashSet::new(),
+ malicious_signers: HashSet::new(),
+ latest_nonces: HashMap::new(),
+ sessions: HashMap::new(),
+ session_counter: 0,
+ })),
+ };
+ }
+
+ pub fn mark_malicious(&self, index: &usize) {
+ let mut roast_state = self.state.lock().expect("got lock");
+ roast_state.malicious_signers.insert(*index);
+ if roast_state.malicious_signers.len() >= self.frost_key.clone().threshold() {
+ panic!("not enough singers left to continue!");
+ }
+ }
+
+ // Main body of the ROAST coordinator algorithm
+ pub fn receive_signature(
+ &self,
+ index: usize,
+ signature_share: Option<Scalar<Public, Zero>>,
+ new_nonce: Nonce,
+ ) -> (Option<Signature>, Option<Vec<(usize, Nonce)>>) {
+ let mut roast_state = self.state.lock().expect("got lock");
+
+ if roast_state.malicious_signers.contains(&index) {
+ println!("Malicious signer tried to send signature! {}", index);
+ return (None, None);
+ }
+
+ if roast_state.responsive_signers.contains(&index) {
+ println!(
+ "Unsolicited reply from signer {}, marking malicious.",
+ index
+ );
+ self.mark_malicious(&index);
+ return (None, None);
+ }
+
+ // If this is not the inital message from S_i
+ if roast_state.sessions.contains_key(&index) {
+ let mut roast_session = roast_state
+ .sessions
+ .get(&index)
+ .unwrap()
+ .lock()
+ .expect("got lock");
+
+ let session = self.frost.start_sign_session(
+ &self.frost_key.clone(),
+ roast_session.nonces.clone(),
+ roast_state.message,
+ );
+
+ if !self.frost.verify_signature_share(
+ &self.frost_key.clone(),
+ &session,
+ index,
+ signature_share.expect("party provided None signature share"),
+ ) {
+ println!("Invalid signature, marking {} malicious.", index);
+ self.mark_malicious(&index);
+ return (None, None);
+ }
+
+ // Store valid signature
+ roast_session
+ .sig_shares
+ .push(signature_share.expect("party provided None signature share"));
+ println!("New signature from party {}", index);
+
+ // if we have t-of-n, combine!
+ if roast_session.sig_shares.len() >= self.frost_key.clone().threshold() {
+ println!("We have the threshold number of signatures, combining!");
+ let combined_sig = self.frost.combine_signature_shares(
+ &self.frost_key.clone(),
+ &session,
+ roast_session.sig_shares.clone(),
+ );
+ // return combined signature
+ return (Some(combined_sig), None);
+ }
+ }
+
+ // Store the recieved presignature shares
+ roast_state.latest_nonces.insert(index, new_nonce);
+
+ // Mark S_i as responsive
+ roast_state.responsive_signers.insert(index);
+
+ // if we now have t responsive signers:
+ if roast_state.responsive_signers.len() >= self.frost_key.clone().threshold() {
+ println!("We now have threshold number of responsive signers!");
+ roast_state.session_counter += 1;
+ // build the presignature (aggregate the nonces).
+ let r_signers = roast_state.responsive_signers.clone();
+ // we're not actually aggregating any nonces in this core yet since this will
+ // require changes to frost.rs
+ let nonces: Vec<_> = r_signers
+ .iter()
+ .cloned()
+ .map(|i| {
+ (
+ i,
+ *roast_state
+ .latest_nonces
+ .get(&i)
+ .expect("has submitted nonce"),
+ )
+ })
+ .collect();
+
+ for i in r_signers.clone() {
+ // send agg nonce to signers (rho, R)
+ roast_state.sessions.insert(
+ i,
+ Arc::new(Mutex::new(RoastSignSession {
+ signers: r_signers.clone(),
+ nonces: nonces.clone(),
+ sig_shares: vec![],
+ })),
+ );
+ let nonces = roast_state
+ .latest_nonces
+ .iter()
+ .map(|(i, nonce)| (*i, *nonce))
+ .collect();
+ println!("Responding with nonces:");
+ // DO THIS FOR EVERY S_i...>!>!> need async
+
+ // OPEN MANY THREADS AND THEN AWAIT COLLECTION
+ return (None, Some(nonces));
+ }
+ }
+
+ // (None, Some(roast_state.latest_nonces))
+ (None, None)
+ }
+}
diff --git a/src/frost.rs b/roastlib/src/frost.rs
diff --git a/roastlib/src/lib.rs b/roastlib/src/lib.rs
@@ -0,0 +1,3 @@
+pub mod client;
+pub mod coordinator;
+pub mod frost;
diff --git a/roastlib/src/main.rs b/roastlib/src/main.rs
@@ -0,0 +1,27 @@
+use roast::client;
+use roast::coordinator;
+use roast::frost;
+use schnorr_fun::frost as secp_frost;
+use schnorr_fun::nonce::Deterministic;
+use schnorr_fun::Message;
+use sha2::Sha256;
+
+fn main() {
+ let frost = secp_frost::Frost::<Sha256, Deterministic<Sha256>>::default();
+ let (secret_shares, frost_keys) = frost::frost_keygen(5, 10);
+
+ let message = Message::plain("test", b"test");
+ let roast = coordinator::Coordinator::new(frost.clone(), frost_keys[0].clone(), message);
+
+ let client1 = client::RoastClient::new(
+ frost,
+ frost_keys[0].clone(),
+ 0,
+ secret_shares[0].clone(),
+ [0].as_slice(),
+ message,
+ );
+
+ let (sig, nonce) = client1.start();
+ roast.receive_signature(0, sig, nonce);
+}
diff --git a/src/coordinator.rs b/src/coordinator.rs
@@ -1,220 +0,0 @@
-use std::{
- collections::{HashMap, HashSet},
- sync::{Arc, Mutex},
-};
-
-use secp256kfun::{
- digest::typenum::U32,
- marker::{Public, Zero},
- Scalar,
-};
-
-use schnorr_fun::{
- frost::{Frost, XOnlyFrostKey},
- musig::{Nonce, NonceKeyPair},
- nonce::NonceGen,
- Message, Signature,
-};
-use sha2::Digest;
-
-pub struct RoastServer<'a, H, NG> {
- pub frost: Frost<H, NG>,
- pub frost_key: Option<XOnlyFrostKey>,
- state: Arc<Mutex<RoastState<'a>>>,
-}
-
-pub struct RoastState<'a> {
- message: Message<'a, Public>,
- responsive_signers: HashSet<usize>,
- malicious_signers: HashSet<usize>,
- latest_nonces: HashMap<usize, Nonce>,
- sessions: HashMap<usize, Arc<Mutex<RoastSignSession>>>,
- session_counter: usize,
-}
-
-pub struct RoastSignSession {
- signers: HashSet<usize>,
- nonces: Vec<(usize, Nonce)>,
- sig_shares: Vec<Scalar<Public, Zero>>,
-}
-
-impl<'a, H: Digest + Clone + Digest<OutputSize = U32>, NG> RoastServer<'a, H, NG> {
- pub fn new(
- frost: Frost<H, NG>,
- frost_key: Option<XOnlyFrostKey>,
- message: Message<'a, Public>,
- ) -> Self {
- return Self {
- frost,
- frost_key,
- state: Arc::new(Mutex::new(RoastState {
- message,
- responsive_signers: HashSet::new(),
- malicious_signers: HashSet::new(),
- latest_nonces: HashMap::new(),
- sessions: HashMap::new(),
- session_counter: 0,
- })),
- };
- }
-
- pub fn mark_malicious(&self, index: &usize) {
- let mut roast_state = self.state.lock().expect("got lock");
- roast_state.malicious_signers.insert(*index);
- if roast_state.malicious_signers.len()
- >= self.frost_key.clone().expect("initialised").threshold()
- {
- panic!("not enough singers left to continue!");
- }
- }
-
- // // Running roast as signer
- // pub fn create_signature(
- // self,
- // secret_share: &Scalar,
- // secret_nonce: NonceKeyPair,
- // my_index: usize,
- // nonces: Vec<(usize, Nonce)>,
- // message: Message<'_>,
- // ) -> Scalar<Public, Zero> {
- // let session = self.frost.start_sign_session(
- // &self.frost_key.clone().expect("initialised"),
- // nonces,
- // message,
- // );
- // self.frost.sign(
- // &self.frost_key.clone().expect("initialised"),
- // &session,
- // my_index,
- // secret_share,
- // secret_nonce,
- // )
- // }
-
- // Main body of the ROAST coordinator algorithm
- pub async fn receive_signature(
- &self,
- index: usize,
- signature_share: Option<Scalar<Public, Zero>>,
- new_nonce: Nonce,
- ) -> (Option<Signature>, Option<Vec<(usize, Nonce)>>) {
- let mut roast_state = self.state.lock().expect("got lock");
-
- if roast_state.malicious_signers.contains(&index) {
- println!("Malicious signer tried to send signature! {}", index);
- return (None, None);
- }
-
- if roast_state.responsive_signers.contains(&index) {
- println!(
- "Unsolicited reply from signer {}, marking malicious.",
- index
- );
- self.mark_malicious(&index);
- return (None, None);
- }
-
- // If this is not the inital message from S_i
- if roast_state.sessions.contains_key(&index) {
- let mut roast_session = roast_state
- .sessions
- .get(&index)
- .unwrap()
- .lock()
- .expect("got lock");
-
- let session = self.frost.start_sign_session(
- &self.frost_key.clone().expect("initialised"),
- roast_session.nonces.clone(),
- roast_state.message,
- );
-
- if !self.frost.verify_signature_share(
- &self.frost_key.clone().expect("initialised"),
- &session,
- index,
- signature_share.expect("party provided None signature share"),
- ) {
- println!("Invalid signature, marking {} malicious.", index);
- self.mark_malicious(&index);
- return (None, None);
- }
-
- // Store valid signature
- roast_session
- .sig_shares
- .push(signature_share.expect("party provided None signature share"));
- println!("New signature from party {}", index);
-
- // if we have t-of-n, combine!
- if roast_session.sig_shares.len()
- >= self.frost_key.clone().expect("initialised").threshold()
- {
- println!("We have the threshold number of signatures, combining!");
- let combined_sig = self.frost.combine_signature_shares(
- &self.frost_key.clone().expect("initialised"),
- &session,
- roast_session.sig_shares.clone(),
- );
- // return combined signature
- return (Some(combined_sig), None);
- }
- }
-
- // Store the recieved presignature shares
- roast_state.latest_nonces.insert(index, new_nonce);
-
- // Mark S_i as responsive
- roast_state.responsive_signers.insert(index);
-
- // if we now have t responsive signers:
- if roast_state.responsive_signers.len()
- >= self.frost_key.clone().expect("initialised").threshold()
- {
- println!("We now have threshold number of responsive signers!");
- roast_state.session_counter += 1;
- // build the presignature (aggregate the nonces).
- let r_signers = roast_state.responsive_signers.clone();
- // we're not actually aggregating any nonces in this core yet since this will
- // require changes to frost.rs
- let nonces: Vec<_> = r_signers
- .iter()
- .cloned()
- .map(|i| {
- (
- i,
- *roast_state
- .latest_nonces
- .get(&i)
- .expect("has submitted nonce"),
- )
- })
- .collect();
-
- for i in r_signers.clone() {
- // send agg nonce to signers (rho, R)
- roast_state.sessions.insert(
- i,
- Arc::new(Mutex::new(RoastSignSession {
- signers: r_signers.clone(),
- nonces: nonces.clone(),
- sig_shares: vec![],
- })),
- );
- let nonces = roast_state
- .latest_nonces
- .iter()
- .map(|(i, nonce)| (*i, *nonce))
- .collect();
- println!("Responding with nonces:");
- // DO THIS FOR EVERY S_i...>!>!> need async
-
- // OPEN MANY THREADS AND THEN AWAIT COLLECTION
- return (None, Some(nonces));
- }
- }
-
- // (None, Some(roast_state.latest_nonces))
- (None, None)
- }
-}
diff --git a/src/lib.rs b/src/lib.rs
@@ -1,2 +0,0 @@
-pub mod coordinator;
-pub mod frost;
diff --git a/src/main.rs b/src/main.rs
@@ -1,98 +0,0 @@
-#![feature(decl_macro)]
-
-#[macro_use]
-extern crate rocket;
-
-use rocket::{Rocket, State};
-use schnorr_fun::musig::Nonce;
-use std::{error::Error, sync::Mutex};
-
-use roast::coordinator::RoastServer;
-use schnorr_fun::frost::Frost;
-use schnorr_fun::nonce::Deterministic;
-use schnorr_fun::{Message, Schnorr};
-use sha2::Sha256;
-
-// Also have optional message here
-#[get("/init?<frost_key>")]
-pub fn init(roast_db: &State<Mutex<RoastServer<Sha256, Sha256>>>, frost_key: String) {
- let mut roast_state = roast_db.lock().expect("got lock");
- roast_state.frost_key = serde_json::from_str(&frost_key).expect("read frost key ok");
-}
-
-#[get("/receive_signature?<sig>&<nonce>&<index>")]
-pub async fn receive_signature(
- roast_db: &State<RoastServer<'_, Sha256, Sha256>>,
- sig: Option<String>,
- nonce: String,
- index: usize,
-) -> String {
- let roast_state = roast_db; //.lock().expect("got lock");
- let submitted_sig = match sig {
- Some(str) => Some(serde_json::from_str(&str).expect("valid sig str")),
- None => None,
- };
- let submitted_nonce = serde_json::from_str(&nonce).expect("valid nonce str");
- // let submitted_nonce = match nonce {
- // Some(str) => Some(serde_json::from_str(&str).expect("valid nonce str")),
- // None => None,
- // };
- roast_state
- .receive_signature(index, submitted_sig, submitted_nonce)
- .await;
-
- format!("done")
-}
-
-#[rocket::main]
-pub async fn main() -> () {
- let res = rocket::build()
- .manage({
- let frost = Frost::new(Schnorr::<Sha256, Deterministic<Sha256>>::new(
- Deterministic::<Sha256>::default(),
- ));
- Mutex::new(RoastServer::new(
- frost,
- None,
- Message::plain("test", b"test"),
- ))
- })
- .mount("/", routes![receive_signature])
- .launch()
- .await;
- ()
-}
-
-// let frost = Frost::<Sha256, Deterministic<Sha256>>::default();
-
-// let message = Message::plain("10 000 emails", b"");
-// // Create a roast server
-// let roast_coordinator =
-// roast_coordinator::RoastServer::new(frost.clone(), frost_keys[0].clone(), message);
-
-// let roast_signer1 = roast_signer::RoastClient::start(
-// roast_coordinator,
-// frost.clone(),
-// frost_keys[0].clone(),
-// 0,
-// secret_shares[0].clone(),
-// [0].as_slice(),
-// message,
-// )
-// .await;
-
-// let roast_signer1.
-
-// We need to somehow set some general methods of communication for roast signers and clients
-// Rocket API probably not the most basic? Would be cool...
-//
-
-// let roast_signer2 = roast_signer::RoastClient::start(
-// roast_coordinator,
-// frost.clone(),
-// frost_keys[0].clone(),
-// 0,
-// secret_shares[0].clone(),
-// [0].as_slice(),
-// message,
-// );