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Feature/dkg state to disk (#1872)

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* Add PersistentState

* Save and load state to/from disk

* If in progress, don't continually write the same state

* Fix tests and add serde one

* Update changelog

* Fix clippy
This commit is contained in:
Bogdan-Ștefan Neacşu
2022-12-09 13:00:27 +02:00
committed by GitHub
parent 85515fe16e
commit ebaf99fadb
12 changed files with 247 additions and 29 deletions
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validator-api/src/config/mod.rs
+16
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@@ -282,6 +282,9 @@ pub struct CoconutSigner {
/// Specifies whether rewarding service is enabled in this process.
enabled: bool,
/// Path to a JSON file where state is persisted between different stages of DKG.
dkg_persistent_state_path: PathBuf,
/// Path to the coconut verification key.
verification_key_path: PathBuf,
@@ -299,6 +302,7 @@ pub struct CoconutSigner {
}
impl CoconutSigner {
pub const DKG_PERSISTENT_STATE_FILE: &'static str = "dkg_persistent_state.json";
pub const DKG_DECRYPTION_KEY_FILE: &'static str = "dkg_decryption_key.pem";
pub const DKG_PUBLIC_KEY_WITH_PROOF_FILE: &'static str = "dkg_public_key_with_proof.pem";
pub const COCONUT_VERIFICATION_KEY_FILE: &'static str = "coconut_verification_key.pem";
@@ -312,6 +316,10 @@ impl CoconutSigner {
Config::default_data_directory(None).join(Self::COCONUT_SECRET_KEY_FILE)
}
fn default_dkg_persistent_state_path() -> PathBuf {
Config::default_data_directory(None).join(Self::DKG_PERSISTENT_STATE_FILE)
}
fn default_dkg_decryption_key_path() -> PathBuf {
Config::default_data_directory(None).join(Self::DKG_DECRYPTION_KEY_FILE)
}
@@ -325,6 +333,7 @@ impl Default for CoconutSigner {
fn default() -> Self {
Self {
enabled: Default::default(),
dkg_persistent_state_path: CoconutSigner::default_dkg_persistent_state_path(),
verification_key_path: CoconutSigner::default_coconut_verification_key_path(),
secret_key_path: CoconutSigner::default_coconut_secret_key_path(),
decryption_key_path: CoconutSigner::default_dkg_decryption_key_path(),
@@ -345,6 +354,8 @@ impl Config {
Config::default_data_directory(Some(id)).join(NodeStatusAPI::DB_FILE);
self.network_monitor.credentials_database_path =
Config::default_data_directory(Some(id)).join(NetworkMonitor::DB_FILE);
self.coconut_signer.dkg_persistent_state_path =
Config::default_data_directory(Some(id)).join(CoconutSigner::DKG_PERSISTENT_STATE_FILE);
self.coconut_signer.verification_key_path = Config::default_data_directory(Some(id))
.join(CoconutSigner::COCONUT_VERIFICATION_KEY_FILE);
self.coconut_signer.secret_key_path =
@@ -509,6 +520,11 @@ impl Config {
self.node_status_api.database_path.clone()
}
#[cfg(feature = "coconut")]
pub fn persistent_state_path(&self) -> PathBuf {
self.coconut_signer.dkg_persistent_state_path.clone()
}
#[cfg(feature = "coconut")]
pub fn verification_key_path(&self) -> PathBuf {
self.coconut_signer.verification_key_path.clone()