209: Upgrade to bdk 0.4 r=thomaseizinger a=thomaseizinger

Effectively, this also means:

- Upgrading to rust-bitcoin 0.26
- Upgrading to miniscript 5
- Upgrading monero to 0.10
- Upgrading curve25519-dalek to 3
- Upgrading bitcoin-harness to rust-bitcoin 0.26 (https://github.com/coblox/bitcoin-harness-rs/pull/21)
- Upgrade `ecdsa_fun` to latest version
- Replace `cross_curve_dleq` with `sigma_fun` (to avoid an upgrade dance on that library)

I refrained from specifying `rev`s in the Cargo.toml because we have a lock-file anyway. This should allow us to update those dependencies easier in the future by just running `cargo update -p <dependency>`.

Co-authored-by: Thomas Eizinger <thomas@eizinger.io>
This commit is contained in:
bors[bot] 2021-02-22 00:00:06 +00:00 committed by GitHub
commit 81228c9d5b
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
20 changed files with 306 additions and 268 deletions

253
Cargo.lock generated
View File

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source = "git+https://github.com/LLFourn/secp256kfun?rev=cdfbc766045ea678a41780919d6228dd5acee3be#cdfbc766045ea678a41780919d6228dd5acee3be"
version = "0.1.4-alpha.0"
source = "git+https://github.com/LLFourn/secp256kfun#8538ef22498170960a9769df2700c1986cc540fd"
dependencies = [
"crunchy 0.2.2",
"subtle 2.4.0",
@ -3253,6 +3203,19 @@ dependencies = [
"lazy_static",
]
[[package]]
name = "sigma_fun"
version = "0.1.3-alpha.0"
source = "git+https://github.com/LLFourn/secp256kfun#8538ef22498170960a9769df2700c1986cc540fd"
dependencies = [
"curve25519-dalek",
"digest 0.9.0",
"generic-array 0.14.4",
"rand_core 0.5.1",
"secp256kfun",
"serde",
]
[[package]]
name = "signature"
version = "1.3.0"
@ -3501,8 +3464,7 @@ dependencies = [
"bitcoin-harness",
"config",
"conquer-once",
"cross-curve-dleq",
"curve25519-dalek 2.1.2",
"curve25519-dalek",
"derivative",
"dialoguer",
"directories-next",
@ -3521,6 +3483,7 @@ dependencies = [
"port_check",
"prettytable-rs",
"rand 0.7.3",
"rand_chacha 0.2.2",
"reqwest",
"rust_decimal",
"serde",
@ -3528,6 +3491,7 @@ dependencies = [
"serde_derive",
"serde_json",
"sha2 0.9.2",
"sigma_fun",
"sled",
"spectral",
"structopt",
@ -3536,7 +3500,7 @@ dependencies = [
"testcontainers 0.12.0",
"thiserror",
"time",
"tokio 1.0.2",
"tokio",
"toml",
"tracing",
"tracing-core",
@ -3737,17 +3701,6 @@ version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
[[package]]
name = "tokio"
version = "0.2.25"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6703a273949a90131b290be1fe7b039d0fc884aa1935860dfcbe056f28cd8092"
dependencies = [
"bytes 0.5.6",
"pin-project-lite 0.1.11",
"slab",
]
[[package]]
name = "tokio"
version = "1.0.2"
@ -3755,12 +3708,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0ca04cec6ff2474c638057b65798f60ac183e5e79d3448bb7163d36a39cff6ec"
dependencies = [
"autocfg 1.0.1",
"bytes 1.0.1",
"bytes",
"libc",
"memchr",
"mio",
"num_cpus",
"pin-project-lite 0.2.4",
"pin-project-lite",
"tokio-macros",
]
@ -3782,7 +3735,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f7d995660bd2b7f8c1568414c1126076c13fbb725c40112dc0120b78eb9b717b"
dependencies = [
"native-tls",
"tokio 1.0.2",
"tokio",
]
[[package]]
@ -3792,8 +3745,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "76066865172052eb8796c686f0b441a93df8b08d40a950b062ffb9a426f00edd"
dependencies = [
"futures-core",
"pin-project-lite 0.2.4",
"tokio 1.0.2",
"pin-project-lite",
"tokio",
]
[[package]]
@ -3802,12 +3755,12 @@ version = "0.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "12ae4751faa60b9f96dd8344d74592e5a17c0c9a220413dbc6942d14139bbfcc"
dependencies = [
"bytes 1.0.1",
"bytes",
"futures-core",
"futures-sink",
"log",
"pin-project-lite 0.2.4",
"tokio 1.0.2",
"pin-project-lite",
"tokio",
"tokio-stream",
]
@ -3833,7 +3786,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9f47026cdc4080c07e49b37087de021820269d996f581aac150ef9e5583eefe3"
dependencies = [
"cfg-if 1.0.0",
"pin-project-lite 0.2.4",
"pin-project-lite",
"tracing-attributes",
"tracing-core",
]
@ -3992,7 +3945,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "35581ff83d4101e58b582e607120c7f5ffb17e632a980b1f38334d76b36908b2"
dependencies = [
"asynchronous-codec",
"bytes 1.0.1",
"bytes",
"futures-io",
"futures-util",
]
@ -4283,7 +4236,7 @@ version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bc614d95359fd7afc321b66d2107ede58b246b844cf5d8a0adcca413e439f088"
dependencies = [
"curve25519-dalek 3.0.2",
"curve25519-dalek",
"rand_core 0.5.1",
"zeroize 1.2.0",
]

View File

@ -16,30 +16,30 @@ anyhow = "1"
async-recursion = "0.3.1"
async-trait = "0.1"
atty = "0.2"
backoff = { git = "https://github.com/ihrwein/backoff", rev = "9d03992a83dfdc596be26276d4e5c5254a4b11a2", features = ["tokio"] }
backoff = { version = "0.3", features = ["tokio"] }
base64 = "0.12"
bdk = { version = "0.3" }
bitcoin = { version = "0.25", features = ["rand", "use-serde"] }
bitcoin-harness = { git = "https://github.com/coblox/bitcoin-harness-rs", rev = "ae2f6cd547496e680941c0910018bbe884128799" }
bdk = { version = "0.4" }
bitcoin = { version = "0.26", features = ["rand", "use-serde"] }
bitcoin-harness = { git = "https://github.com/coblox/bitcoin-harness-rs" }
config = { version = "0.10", default-features = false, features = ["toml"] }
conquer-once = "0.3"
cross-curve-dleq = { git = "https://github.com/comit-network/cross-curve-dleq", rev = "eddcdea1d1f16fa33ef581d1744014ece535c920", features = ["serde"] }
curve25519-dalek = "2"
curve25519-dalek = "3"
derivative = "2"
dialoguer = "0.7"
directories-next = "2"
ecdsa_fun = { git = "https://github.com/LLFourn/secp256kfun", rev = "cdfbc766045ea678a41780919d6228dd5acee3be", features = ["libsecp_compat", "serde"] }
ecdsa_fun = { git = "https://github.com/LLFourn/secp256kfun", features = ["libsecp_compat", "serde"] }
ed25519-dalek = { version = "1.0.0-pre.4", features = ["serde"] }# Cannot be 1 because they depend on curve25519-dalek version 3
futures = { version = "0.3", default-features = false }
libp2p = { version = "0.34", default-features = false, features = ["tcp-tokio", "yamux", "mplex", "dns", "noise", "request-response"] }
libp2p-async-await = { git = "https://github.com/comit-network/rust-libp2p-async-await", rev = "1429cd780204624b4d244e7d8179fe6ff77988c3" }
log = { version = "0.4", features = ["serde"] }
miniscript = { version = "4", features = ["serde"] }
monero = { version = "0.9", features = ["serde_support"] }
miniscript = { version = "5", features = ["serde"] }
monero = { version = "0.10", features = ["serde_support"] }
monero-harness = { path = "../monero-harness" }
pem = "0.8"
prettytable-rs = "0.8"
rand = "0.7"
rand_chacha = "0.2.0"
reqwest = { version = "0.11", default-features = false }
rust_decimal = "1.10"
serde = { version = "1", features = ["derive"] }
@ -47,6 +47,7 @@ serde_cbor = "0.11"
serde_derive = "1.0"
serde_json = "1"
sha2 = "0.9"
sigma_fun = { git = "https://github.com/LLFourn/secp256kfun", features = ["ed25519", "serde"] }
sled = "0.34"
structopt = "0.3"
strum = { version = "0.20", features = ["derive"] }

View File

@ -28,8 +28,13 @@ use ::bitcoin::{
};
use anyhow::{anyhow, bail, Result};
use async_trait::async_trait;
use ecdsa_fun::{adaptor::Adaptor, fun::Point, nonce::Deterministic, ECDSA};
use miniscript::{Descriptor, Segwitv0};
use ecdsa_fun::{
adaptor::{Adaptor, HashTranscript},
fun::Point,
nonce::Deterministic,
ECDSA,
};
use miniscript::{descriptor::Wsh, Descriptor, Segwitv0};
use rand::{CryptoRng, RngCore};
use serde::{Deserialize, Serialize};
use sha2::Sha256;
@ -93,7 +98,10 @@ impl SecretKey {
// self = a, Y = S_b, digest = tx_refund
pub fn encsign(&self, Y: PublicKey, digest: SigHash) -> EncryptedSignature {
let adaptor = Adaptor::<Sha256, Deterministic<Sha256>>::default();
let adaptor = Adaptor::<
HashTranscript<Sha256, rand_chacha::ChaCha20Rng>,
Deterministic<Sha256>,
>::default();
adaptor.encrypted_sign(&self.inner, &Y.0, &digest.into_inner())
}
@ -108,6 +116,12 @@ impl From<PublicKey> for Point {
}
}
impl From<Point> for PublicKey {
fn from(p: Point) -> Self {
Self(p)
}
}
impl From<Scalar> for SecretKey {
fn from(scalar: Scalar) -> Self {
let ecdsa = ECDSA::<()>::default();
@ -157,7 +171,7 @@ pub fn verify_encsig(
digest: &SigHash,
encsig: &EncryptedSignature,
) -> Result<()> {
let adaptor = Adaptor::<Sha256, Deterministic<Sha256>>::default();
let adaptor = Adaptor::<HashTranscript<Sha256>, Deterministic<Sha256>>::default();
if adaptor.verify_encrypted_signature(
&verification_key.0,
@ -187,7 +201,7 @@ pub fn build_shared_output_descriptor(A: Point, B: Point) -> Descriptor<bitcoin:
let miniscript = miniscript::Miniscript::<bitcoin::PublicKey, Segwitv0>::from_str(&miniscript)
.expect("a valid miniscript");
Descriptor::Wsh(miniscript)
Descriptor::Wsh(Wsh::new(miniscript).expect("a valid descriptor"))
}
#[async_trait]
@ -244,7 +258,7 @@ pub trait GetNetwork {
}
pub fn recover(S: PublicKey, sig: Signature, encsig: EncryptedSignature) -> Result<SecretKey> {
let adaptor = Adaptor::<Sha256, Deterministic<Sha256>>::default();
let adaptor = Adaptor::<HashTranscript<Sha256>, Deterministic<Sha256>>::default();
let s = adaptor
.recover_decryption_key(&S.0, &sig, &encsig)

View File

@ -5,7 +5,7 @@ use crate::bitcoin::{
use ::bitcoin::{util::bip143::SigHashCache, OutPoint, SigHash, SigHashType, TxIn, TxOut, Txid};
use anyhow::Result;
use ecdsa_fun::Signature;
use miniscript::{Descriptor, NullCtx};
use miniscript::{Descriptor, DescriptorTrait};
use serde::{Deserialize, Serialize};
use std::{collections::HashMap, ops::Add};
@ -78,7 +78,7 @@ impl TxCancel {
let tx_out = TxOut {
value: tx_lock.lock_amount().as_sat() - TX_FEE,
script_pubkey: cancel_output_descriptor.script_pubkey(NullCtx),
script_pubkey: cancel_output_descriptor.script_pubkey(),
};
let transaction = Transaction {
@ -90,7 +90,7 @@ impl TxCancel {
let digest = SigHashCache::new(&transaction).signature_hash(
0, // Only one input: lock_input (lock transaction)
&tx_lock.output_descriptor.witness_script(NullCtx),
&tx_lock.output_descriptor.script_code(),
tx_lock.lock_amount().as_sat(),
SigHashType::All,
);
@ -146,7 +146,7 @@ impl TxCancel {
let mut tx_cancel = self.inner;
tx_lock
.output_descriptor
.satisfy(&mut tx_cancel.input[0], satisfier, NullCtx)?;
.satisfy(&mut tx_cancel.input[0], satisfier)?;
Ok(tx_cancel)
}

View File

@ -4,7 +4,7 @@ use crate::bitcoin::{
};
use ::bitcoin::{util::psbt::PartiallySignedTransaction, OutPoint, TxIn, TxOut, Txid};
use anyhow::Result;
use miniscript::{Descriptor, NullCtx};
use miniscript::{Descriptor, DescriptorTrait};
use serde::{Deserialize, Serialize};
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
@ -20,7 +20,7 @@ impl TxLock {
{
let lock_output_descriptor = build_shared_output_descriptor(A.0, B.0);
let address = lock_output_descriptor
.address(wallet.get_network().await, NullCtx)
.address(wallet.get_network().await)
.expect("can derive address from descriptor");
let psbt = wallet.build_tx_lock_psbt(address, amount).await?;
@ -54,9 +54,7 @@ impl TxLock {
.extract_tx()
.output
.iter()
.position(|output| {
output.script_pubkey == self.output_descriptor.script_pubkey(NullCtx)
})
.position(|output| output.script_pubkey == self.output_descriptor.script_pubkey())
.expect("transaction contains lock output")
}

View File

@ -2,7 +2,7 @@ use crate::bitcoin::{Address, PublicKey, PunishTimelock, Transaction, TxCancel};
use ::bitcoin::{util::bip143::SigHashCache, SigHash, SigHashType};
use anyhow::Result;
use ecdsa_fun::Signature;
use miniscript::NullCtx;
use miniscript::DescriptorTrait;
use std::collections::HashMap;
#[derive(Debug)]
@ -21,7 +21,7 @@ impl TxPunish {
let digest = SigHashCache::new(&tx_punish).signature_hash(
0, // Only one input: cancel transaction
&tx_cancel.output_descriptor.witness_script(NullCtx),
&tx_cancel.output_descriptor.script_code(),
tx_cancel.amount().as_sat(),
SigHashType::All,
);
@ -64,7 +64,7 @@ impl TxPunish {
let mut tx_punish = self.inner;
tx_cancel
.output_descriptor
.satisfy(&mut tx_punish.input[0], satisfier, NullCtx)?;
.satisfy(&mut tx_punish.input[0], satisfier)?;
Ok(tx_punish)
}

View File

@ -5,7 +5,7 @@ use crate::bitcoin::{
use ::bitcoin::{util::bip143::SigHashCache, SigHash, SigHashType, Txid};
use anyhow::{bail, Context, Result};
use ecdsa_fun::Signature;
use miniscript::NullCtx;
use miniscript::DescriptorTrait;
use std::collections::HashMap;
#[derive(Debug, Clone)]
@ -22,7 +22,7 @@ impl TxRedeem {
let digest = SigHashCache::new(&tx_redeem).signature_hash(
0, // Only one input: lock_input (lock transaction)
&tx_lock.output_descriptor.witness_script(NullCtx),
&tx_lock.output_descriptor.script_code(),
tx_lock.lock_amount().as_sat(),
SigHashType::All,
);
@ -69,7 +69,7 @@ impl TxRedeem {
let mut tx_redeem = self.inner;
tx_lock
.output_descriptor
.satisfy(&mut tx_redeem.input[0], satisfier, NullCtx)?;
.satisfy(&mut tx_redeem.input[0], satisfier)?;
Ok(tx_redeem)
}

View File

@ -5,7 +5,7 @@ use crate::bitcoin::{
use ::bitcoin::{util::bip143::SigHashCache, SigHash, SigHashType, Txid};
use anyhow::{bail, Context, Result};
use ecdsa_fun::Signature;
use miniscript::NullCtx;
use miniscript::DescriptorTrait;
use std::collections::HashMap;
#[derive(Debug)]
@ -20,7 +20,7 @@ impl TxRefund {
let digest = SigHashCache::new(&tx_punish).signature_hash(
0, // Only one input: cancel transaction
&tx_cancel.output_descriptor.witness_script(NullCtx),
&tx_cancel.output_descriptor.script_code(),
tx_cancel.amount().as_sat(),
SigHashType::All,
);
@ -67,7 +67,7 @@ impl TxRefund {
let mut tx_refund = self.inner;
tx_cancel
.output_descriptor
.satisfy(&mut tx_refund.input[0], satisfier, NullCtx)?;
.satisfy(&mut tx_refund.input[0], satisfier)?;
Ok(tx_refund)
}

View File

@ -9,7 +9,7 @@ use crate::{
use ::bitcoin::{util::psbt::PartiallySignedTransaction, Txid};
use anyhow::{anyhow, bail, Context, Result};
use async_trait::async_trait;
use backoff::{backoff::Constant as ConstantBackoff, tokio::retry};
use backoff::{backoff::Constant as ConstantBackoff, future::retry};
use bdk::{
blockchain::{noop_progress, Blockchain, ElectrumBlockchain},
electrum_client::{self, Client, ElectrumApi},
@ -125,14 +125,12 @@ impl BuildTxLockPsbt for Wallet {
output_amount: Amount,
) -> Result<PartiallySignedTransaction> {
tracing::debug!("building tx lock");
let (psbt, _details) = self.inner.lock().await.create_tx(
bdk::TxBuilder::with_recipients(vec![(
output_address.script_pubkey(),
output_amount.as_sat(),
)])
// todo: get actual fee
.fee_rate(FeeRate::from_sat_per_vb(5.0)),
)?;
let wallet = self.inner.lock().await;
let mut tx_builder = wallet.build_tx();
tx_builder.add_recipient(output_address.script_pubkey(), output_amount.as_sat());
tx_builder.fee_rate(FeeRate::from_sat_per_vb(5.0)); // todo: get actual fee
let (psbt, _details) = tx_builder.finish()?;
tracing::debug!("tx lock built");
Ok(psbt)
}

View File

@ -27,5 +27,6 @@ pub mod protocol;
pub mod seed;
pub mod trace;
mod monero_ext;
mod network;
mod serde_peer_id;

View File

@ -5,7 +5,7 @@ use crate::monero::{
use ::monero::{Address, Network, PrivateKey, PublicKey};
use anyhow::Result;
use async_trait::async_trait;
use backoff::{backoff::Constant as ConstantBackoff, tokio::retry};
use backoff::{backoff::Constant as ConstantBackoff, future::retry};
use bitcoin::hashes::core::sync::atomic::AtomicU32;
use monero_harness::rpc::wallet;
use std::{

20
swap/src/monero_ext.rs Normal file
View File

@ -0,0 +1,20 @@
use crate::bitcoin::Scalar;
use ecdsa_fun::fun::marker::{Mark, NonZero, Secret};
pub trait ScalarExt {
fn to_secpfun_scalar(&self) -> ecdsa_fun::fun::Scalar;
}
impl ScalarExt for crate::monero::Scalar {
fn to_secpfun_scalar(&self) -> Scalar<Secret, NonZero> {
let mut little_endian_bytes = self.to_bytes();
little_endian_bytes.reverse();
let big_endian_bytes = little_endian_bytes;
ecdsa_fun::fun::Scalar::from_bytes(big_endian_bytes)
.expect("valid scalar")
.mark::<NonZero>()
.expect("non-zero scalar")
}
}

View File

@ -1,6 +1,20 @@
use conquer_once::Lazy;
use ecdsa_fun::fun::marker::Mark;
use sha2::Sha256;
use sigma_fun::{ext::dl_secp256k1_ed25519_eq::CrossCurveDLEQ, HashTranscript};
pub mod alice;
pub mod bob;
pub static CROSS_CURVE_PROOF_SYSTEM: Lazy<
CrossCurveDLEQ<HashTranscript<Sha256, rand_chacha::ChaCha20Rng>>,
> = Lazy::new(|| {
CrossCurveDLEQ::<HashTranscript<Sha256, rand_chacha::ChaCha20Rng>>::new(
(*ecdsa_fun::fun::G).mark::<ecdsa_fun::fun::marker::Normal>(),
curve25519_dalek::constants::ED25519_BASEPOINT_POINT,
)
});
#[derive(Debug, Copy, Clone)]
pub struct StartingBalances {
pub xmr: crate::monero::Amount,

View File

@ -12,13 +12,14 @@ use anyhow::{Context, Error};
use libp2p::PeerId;
use libp2p_async_await::BehaviourOutEvent;
use serde::{Deserialize, Serialize};
use sigma_fun::ext::dl_secp256k1_ed25519_eq::CrossCurveDLEQProof;
#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct Message1 {
pub(crate) A: bitcoin::PublicKey,
pub(crate) S_a_monero: monero::PublicKey,
pub(crate) S_a_bitcoin: bitcoin::PublicKey,
pub(crate) dleq_proof_s_a: cross_curve_dleq::Proof,
pub(crate) dleq_proof_s_a: CrossCurveDLEQProof,
pub(crate) v_a: monero::PrivateViewKey,
pub(crate) redeem_address: bitcoin::Address,
pub(crate) punish_address: bitcoin::Address,

View File

@ -7,17 +7,23 @@ use crate::{
},
execution_params::ExecutionParams,
monero,
monero_ext::ScalarExt,
protocol::{
alice::{Message1, Message3, TransferProof},
bob::{EncryptedSignature, Message0, Message2, Message4},
CROSS_CURVE_PROOF_SYSTEM,
},
};
use anyhow::{anyhow, Context, Result};
use ecdsa_fun::{adaptor::Adaptor, nonce::Deterministic};
use anyhow::{anyhow, bail, Context, Result};
use ecdsa_fun::{
adaptor::{Adaptor, HashTranscript},
nonce::Deterministic,
};
use libp2p::PeerId;
use rand::{CryptoRng, RngCore};
use serde::{Deserialize, Serialize};
use sha2::Sha256;
use sigma_fun::ext::dl_secp256k1_ed25519_eq::CrossCurveDLEQProof;
use std::fmt;
#[derive(Debug)]
@ -80,9 +86,11 @@ impl fmt::Display for AliceState {
#[derive(Clone, Debug, Deserialize, Serialize, PartialEq)]
pub struct State0 {
pub a: bitcoin::SecretKey,
pub s_a: cross_curve_dleq::Scalar,
pub s_a: monero::Scalar,
pub v_a: monero::PrivateViewKey,
pub dleq_proof_s_a: cross_curve_dleq::Proof,
pub(crate) S_a_monero: monero::PublicKey,
pub(crate) S_a_bitcoin: bitcoin::PublicKey,
pub dleq_proof_s_a: CrossCurveDLEQProof,
#[serde(with = "::bitcoin::util::amount::serde::as_sat")]
pub btc: bitcoin::Amount,
pub xmr: monero::Amount,
@ -104,16 +112,21 @@ impl State0 {
R: RngCore + CryptoRng,
{
let a = bitcoin::SecretKey::new_random(rng);
let s_a = cross_curve_dleq::Scalar::random(rng);
let v_a = monero::PrivateViewKey::new_random(rng);
let redeem_address = bitcoin_wallet.new_address().await?;
let punish_address = redeem_address.clone();
let dleq_proof_s_a = cross_curve_dleq::Proof::new(rng, &s_a);
let s_a = monero::Scalar::random(rng);
let (dleq_proof_s_a, (S_a_bitcoin, S_a_monero)) = CROSS_CURVE_PROOF_SYSTEM.prove(&s_a, rng);
Ok(Self {
a,
s_a,
v_a,
S_a_bitcoin: S_a_bitcoin.into(),
S_a_monero: monero::PublicKey {
point: S_a_monero.compress(),
},
dleq_proof_s_a,
redeem_address,
punish_address,
@ -125,13 +138,20 @@ impl State0 {
}
pub fn receive(self, msg: Message0) -> Result<State1> {
msg.dleq_proof_s_b.verify(
msg.S_b_bitcoin.clone().into(),
msg.S_b_monero
.point
.decompress()
.ok_or_else(|| anyhow!("S_b is not a monero curve point"))?,
)?;
let valid = CROSS_CURVE_PROOF_SYSTEM.verify(
&msg.dleq_proof_s_b,
(
msg.S_b_bitcoin.into(),
msg.S_b_monero
.point
.decompress()
.ok_or_else(|| anyhow!("S_b is not a monero curve point"))?,
),
);
if !valid {
bail!("Bob's dleq proof doesn't verify")
}
let v = self.v_a + msg.v_b;
@ -139,6 +159,8 @@ impl State0 {
a: self.a,
B: msg.B,
s_a: self.s_a,
S_a_monero: self.S_a_monero,
S_a_bitcoin: self.S_a_bitcoin,
S_b_monero: msg.S_b_monero,
S_b_bitcoin: msg.S_b_bitcoin,
v,
@ -159,12 +181,14 @@ impl State0 {
pub struct State1 {
a: bitcoin::SecretKey,
B: bitcoin::PublicKey,
s_a: cross_curve_dleq::Scalar,
s_a: monero::Scalar,
S_a_monero: monero::PublicKey,
S_a_bitcoin: bitcoin::PublicKey,
S_b_monero: monero::PublicKey,
S_b_bitcoin: bitcoin::PublicKey,
v: monero::PrivateViewKey,
v_a: monero::PrivateViewKey,
dleq_proof_s_a: cross_curve_dleq::Proof,
dleq_proof_s_a: CrossCurveDLEQProof,
#[serde(with = "::bitcoin::util::amount::serde::as_sat")]
btc: bitcoin::Amount,
xmr: monero::Amount,
@ -179,10 +203,8 @@ impl State1 {
pub fn next_message(&self) -> Message1 {
Message1 {
A: self.a.public(),
S_a_monero: monero::PublicKey::from_private_key(&monero::PrivateKey {
scalar: self.s_a.into_ed25519(),
}),
S_a_bitcoin: self.s_a.into_secp256k1().into(),
S_a_monero: self.S_a_monero,
S_a_bitcoin: self.S_a_bitcoin,
dleq_proof_s_a: self.dleq_proof_s_a.clone(),
v_a: self.v_a,
redeem_address: self.redeem_address.clone(),
@ -214,7 +236,7 @@ impl State1 {
pub struct State2 {
a: bitcoin::SecretKey,
B: bitcoin::PublicKey,
s_a: cross_curve_dleq::Scalar,
s_a: monero::Scalar,
S_b_monero: monero::PublicKey,
S_b_bitcoin: bitcoin::PublicKey,
v: monero::PrivateViewKey,
@ -284,7 +306,7 @@ impl State2 {
pub struct State3 {
pub a: bitcoin::SecretKey,
pub B: bitcoin::PublicKey,
pub s_a: cross_curve_dleq::Scalar,
pub s_a: monero::Scalar,
pub S_b_monero: monero::PublicKey,
pub S_b_bitcoin: bitcoin::PublicKey,
pub v: monero::PrivateViewKey,
@ -332,7 +354,7 @@ impl State3 {
pub struct State4 {
a: bitcoin::SecretKey,
B: bitcoin::PublicKey,
s_a: cross_curve_dleq::Scalar,
s_a: monero::Scalar,
S_b_monero: monero::PublicKey,
S_b_bitcoin: bitcoin::PublicKey,
v: monero::PrivateViewKey,
@ -352,9 +374,7 @@ impl State4 {
where
W: monero::Transfer,
{
let S_a = monero::PublicKey::from_private_key(&monero::PrivateKey {
scalar: self.s_a.into_ed25519(),
});
let S_a = monero::PublicKey::from_private_key(&monero::PrivateKey { scalar: self.s_a });
let S_b = self.S_b_monero;
let (tx_lock_proof, fee) = monero_wallet
@ -425,7 +445,7 @@ impl State4 {
pub struct State5 {
a: bitcoin::SecretKey,
B: bitcoin::PublicKey,
s_a: cross_curve_dleq::Scalar,
s_a: monero::Scalar,
S_b_monero: monero::PublicKey,
S_b_bitcoin: bitcoin::PublicKey,
v: monero::PrivateViewKey,
@ -475,7 +495,7 @@ impl State5 {
pub struct State6 {
a: bitcoin::SecretKey,
B: bitcoin::PublicKey,
s_a: cross_curve_dleq::Scalar,
s_a: monero::Scalar,
S_b_monero: monero::PublicKey,
S_b_bitcoin: bitcoin::PublicKey,
v: monero::PrivateViewKey,
@ -496,13 +516,13 @@ impl State6 {
&self,
bitcoin_wallet: &W,
) -> Result<()> {
let adaptor = Adaptor::<Sha256, Deterministic<Sha256>>::default();
let adaptor = Adaptor::<HashTranscript<Sha256>, Deterministic<Sha256>>::default();
let tx_redeem = bitcoin::TxRedeem::new(&self.tx_lock, &self.redeem_address);
let sig_a = self.a.sign(tx_redeem.digest());
let sig_b =
adaptor.decrypt_signature(&self.s_a.into_secp256k1(), self.tx_redeem_encsig.clone());
adaptor.decrypt_signature(&self.s_a.to_secpfun_scalar(), self.tx_redeem_encsig.clone());
let sig_tx_redeem =
tx_redeem.add_signatures(&self.tx_lock, (self.a.public(), sig_a), (self.B, sig_b))?;

View File

@ -15,7 +15,10 @@ use crate::{
},
};
use anyhow::{Context, Result};
use ecdsa_fun::{adaptor::Adaptor, nonce::Deterministic};
use ecdsa_fun::{
adaptor::{Adaptor, HashTranscript},
nonce::Deterministic,
};
use futures::{
future::{select, Either},
pin_mut,
@ -61,9 +64,7 @@ pub async fn lock_xmr<W>(
where
W: Transfer,
{
let S_a = monero::PublicKey::from_private_key(&monero::PrivateKey {
scalar: state3.s_a.into_ed25519(),
});
let S_a = monero::PublicKey::from_private_key(&monero::PrivateKey { scalar: state3.s_a });
let public_spend_key = S_a + state3.S_b_monero;
let public_view_key = state3.v.public();
@ -103,24 +104,24 @@ pub fn build_bitcoin_redeem_transaction(
encrypted_signature: EncryptedSignature,
tx_lock: &TxLock,
a: bitcoin::SecretKey,
s_a: cross_curve_dleq::Scalar,
s_a: ecdsa_fun::fun::Scalar,
B: bitcoin::PublicKey,
redeem_address: &bitcoin::Address,
) -> Result<bitcoin::Transaction> {
let adaptor = Adaptor::<Sha256, Deterministic<Sha256>>::default();
let adaptor = Adaptor::<HashTranscript<Sha256>, Deterministic<Sha256>>::default();
let tx_redeem = bitcoin::TxRedeem::new(tx_lock, redeem_address);
bitcoin::verify_encsig(
B,
s_a.into_secp256k1().into(),
bitcoin::PublicKey::from(s_a.clone()),
&tx_redeem.digest(),
&encrypted_signature,
)
.context("Invalid encrypted signature received")?;
let sig_a = a.sign(tx_redeem.digest());
let sig_b = adaptor.decrypt_signature(&s_a.into_secp256k1(), encrypted_signature);
let sig_b = adaptor.decrypt_signature(&s_a, encrypted_signature);
let tx = tx_redeem
.add_signatures(&tx_lock, (a.public(), sig_a), (B, sig_b))
@ -224,13 +225,11 @@ where
pub fn extract_monero_private_key(
published_refund_tx: bitcoin::Transaction,
tx_refund: TxRefund,
s_a: cross_curve_dleq::Scalar,
s_a: monero::Scalar,
a: bitcoin::SecretKey,
S_b_bitcoin: bitcoin::PublicKey,
) -> Result<monero::PrivateKey> {
let s_a = monero::PrivateKey {
scalar: s_a.into_ed25519(),
};
let s_a = monero::PrivateKey { scalar: s_a };
let tx_refund_sig = tx_refund
.extract_signature_by_key(published_refund_tx, a.public())

View File

@ -11,6 +11,7 @@ use crate::{
execution_params::ExecutionParams,
monero,
monero::CreateWalletForOutput,
monero_ext::ScalarExt,
protocol::{
alice,
alice::{
@ -199,7 +200,7 @@ async fn run_until_internal(
*encrypted_signature,
&state3.tx_lock,
state3.a.clone(),
state3.s_a,
state3.s_a.to_secpfun_scalar(),
state3.B,
&state3.redeem_address,
) {

View File

@ -10,6 +10,7 @@ use anyhow::{Context, Error, Result};
use libp2p::PeerId;
use libp2p_async_await::BehaviourOutEvent;
use serde::{Deserialize, Serialize};
use sigma_fun::ext::dl_secp256k1_ed25519_eq::CrossCurveDLEQProof;
use std::sync::Arc;
#[derive(Clone, Debug, Serialize, Deserialize)]
@ -17,7 +18,7 @@ pub struct Message0 {
pub(crate) B: crate::bitcoin::PublicKey,
pub(crate) S_b_monero: monero::PublicKey,
pub(crate) S_b_bitcoin: crate::bitcoin::PublicKey,
pub(crate) dleq_proof_s_b: cross_curve_dleq::Proof,
pub(crate) dleq_proof_s_b: CrossCurveDLEQProof,
pub(crate) v_b: crate::monero::PrivateViewKey,
pub(crate) refund_address: bitcoin::Address,
}

View File

@ -8,17 +8,24 @@ use crate::{
execution_params::ExecutionParams,
monero,
monero::{monero_private_key, InsufficientFunds, TransferProof},
monero_ext::ScalarExt,
protocol::{
alice::{Message1, Message3},
bob::{EncryptedSignature, Message0, Message2, Message4},
CROSS_CURVE_PROOF_SYSTEM,
},
};
use anyhow::{anyhow, Result};
use ecdsa_fun::{adaptor::Adaptor, nonce::Deterministic, Signature};
use anyhow::{anyhow, bail, Result};
use ecdsa_fun::{
adaptor::{Adaptor, HashTranscript},
nonce::Deterministic,
Signature,
};
use monero_harness::rpc::wallet::BlockHeight;
use rand::{CryptoRng, RngCore};
use serde::{Deserialize, Serialize};
use sha2::Sha256;
use sigma_fun::ext::dl_secp256k1_ed25519_eq::CrossCurveDLEQProof;
use std::fmt;
#[derive(Debug, Clone)]
@ -73,9 +80,11 @@ impl fmt::Display for BobState {
#[derive(Clone, Debug, Deserialize, Serialize, PartialEq)]
pub struct State0 {
b: bitcoin::SecretKey,
s_b: cross_curve_dleq::Scalar,
s_b: monero::Scalar,
S_b_monero: monero::PublicKey,
S_b_bitcoin: bitcoin::PublicKey,
v_b: monero::PrivateViewKey,
dleq_proof_s_b: cross_curve_dleq::Proof,
dleq_proof_s_b: CrossCurveDLEQProof,
#[serde(with = "::bitcoin::util::amount::serde::as_sat")]
btc: bitcoin::Amount,
xmr: monero::Amount,
@ -97,14 +106,19 @@ impl State0 {
) -> Self {
let b = bitcoin::SecretKey::new_random(rng);
let s_b = cross_curve_dleq::Scalar::random(rng);
let s_b = monero::Scalar::random(rng);
let v_b = monero::PrivateViewKey::new_random(rng);
let dleq_proof_s_b = cross_curve_dleq::Proof::new(rng, &s_b);
let (dleq_proof_s_b, (S_b_bitcoin, S_b_monero)) = CROSS_CURVE_PROOF_SYSTEM.prove(&s_b, rng);
Self {
b,
s_b,
v_b,
S_b_bitcoin: bitcoin::PublicKey::from(S_b_bitcoin),
S_b_monero: monero::PublicKey {
point: S_b_monero.compress(),
},
btc,
xmr,
dleq_proof_s_b,
@ -118,10 +132,8 @@ impl State0 {
pub fn next_message(&self) -> Message0 {
Message0 {
B: self.b.public(),
S_b_monero: monero::PublicKey::from_private_key(&monero::PrivateKey {
scalar: self.s_b.into_ed25519(),
}),
S_b_bitcoin: self.s_b.into_secp256k1().into(),
S_b_monero: self.S_b_monero,
S_b_bitcoin: self.S_b_bitcoin,
dleq_proof_s_b: self.dleq_proof_s_b.clone(),
v_b: self.v_b,
refund_address: self.refund_address.clone(),
@ -132,13 +144,20 @@ impl State0 {
where
W: BuildTxLockPsbt + GetNetwork,
{
msg.dleq_proof_s_a.verify(
msg.S_a_bitcoin.clone().into(),
msg.S_a_monero
.point
.decompress()
.ok_or_else(|| anyhow!("S_a is not a monero curve point"))?,
)?;
let valid = CROSS_CURVE_PROOF_SYSTEM.verify(
&msg.dleq_proof_s_a,
(
msg.S_a_bitcoin.clone().into(),
msg.S_a_monero
.point
.decompress()
.ok_or_else(|| anyhow!("S_a is not a monero curve point"))?,
),
);
if !valid {
bail!("Alice's dleq proof doesn't verify")
}
let tx_lock = bitcoin::TxLock::new(wallet, self.btc, msg.A, self.b.public()).await?;
let v = msg.v_a + self.v_b;
@ -166,7 +185,7 @@ impl State0 {
pub struct State1 {
A: bitcoin::PublicKey,
b: bitcoin::SecretKey,
s_b: cross_curve_dleq::Scalar,
s_b: monero::Scalar,
S_a_monero: monero::PublicKey,
S_a_bitcoin: bitcoin::PublicKey,
v: monero::PrivateViewKey,
@ -194,7 +213,7 @@ impl State1 {
bitcoin::verify_sig(&self.A, &tx_cancel.digest(), &msg.tx_cancel_sig)?;
bitcoin::verify_encsig(
self.A,
self.s_b.into_secp256k1().into(),
bitcoin::PublicKey::from(self.s_b.to_secpfun_scalar()),
&tx_refund.digest(),
&msg.tx_refund_encsig,
)?;
@ -224,7 +243,7 @@ impl State1 {
pub struct State2 {
A: bitcoin::PublicKey,
b: bitcoin::SecretKey,
s_b: cross_curve_dleq::Scalar,
s_b: monero::Scalar,
S_a_monero: monero::PublicKey,
S_a_bitcoin: bitcoin::PublicKey,
v: monero::PrivateViewKey,
@ -289,7 +308,7 @@ impl State2 {
pub struct State3 {
A: bitcoin::PublicKey,
b: bitcoin::SecretKey,
s_b: cross_curve_dleq::Scalar,
s_b: monero::Scalar,
S_a_monero: monero::PublicKey,
S_a_bitcoin: bitcoin::PublicKey,
v: monero::PrivateViewKey,
@ -314,9 +333,8 @@ impl State3 {
where
W: monero::WatchForTransfer,
{
let S_b_monero = monero::PublicKey::from_private_key(&monero::PrivateKey::from_scalar(
self.s_b.into_ed25519(),
));
let S_b_monero =
monero::PublicKey::from_private_key(&monero::PrivateKey::from_scalar(self.s_b));
let S = self.S_a_monero + S_b_monero;
if let Err(e) = xmr_wallet
@ -401,7 +419,7 @@ impl State3 {
pub struct State4 {
A: bitcoin::PublicKey,
b: bitcoin::SecretKey,
s_b: cross_curve_dleq::Scalar,
s_b: monero::Scalar,
S_a_bitcoin: bitcoin::PublicKey,
v: monero::PrivateViewKey,
cancel_timelock: CancelTimelock,
@ -536,11 +554,11 @@ impl State4 {
bitcoin::TxCancel::new(&self.tx_lock, self.cancel_timelock, self.A, self.b.public());
let tx_refund = bitcoin::TxRefund::new(&tx_cancel, &self.refund_address);
let adaptor = Adaptor::<Sha256, Deterministic<Sha256>>::default();
let adaptor = Adaptor::<HashTranscript<Sha256>, Deterministic<Sha256>>::default();
let sig_b = self.b.sign(tx_refund.digest());
let sig_a =
adaptor.decrypt_signature(&self.s_b.into_secp256k1(), self.tx_refund_encsig.clone());
adaptor.decrypt_signature(&self.s_b.to_secpfun_scalar(), self.tx_refund_encsig.clone());
let signed_tx_refund = tx_refund.add_signatures(
&tx_cancel.clone(),
@ -568,7 +586,7 @@ impl State4 {
pub struct State5 {
#[serde(with = "monero_private_key")]
s_a: monero::PrivateKey,
s_b: cross_curve_dleq::Scalar,
s_b: monero::Scalar,
v: monero::PrivateViewKey,
tx_lock: bitcoin::TxLock,
monero_wallet_restore_blockheight: u32,
@ -579,9 +597,7 @@ impl State5 {
where
W: monero::CreateWalletForOutput,
{
let s_b = monero::PrivateKey {
scalar: self.s_b.into_ed25519(),
};
let s_b = monero::PrivateKey { scalar: self.s_b };
let s = self.s_a + s_b;

View File

@ -137,6 +137,7 @@ impl IntoIterator for ElectrsArgs {
Network::Testnet => args.push("--network=testnet".to_string()),
Network::Regtest => args.push("--network=regtest".to_string()),
Network::Bitcoin => {}
Network::Signet => panic!("signet not yet supported"),
}
args.push("-vvvvv".to_string());