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use crate::{
client::AccountAddress,
crypto::{
ed25519::{Ed25519PrivateKey, Ed25519PublicKey},
traits::Uniform,
},
transaction_builder::TransactionBuilder,
types::transaction::{authenticator::AuthenticationKey, RawTransaction, SignedTransaction},
};
pub use diem_types::*;
#[derive(Debug)]
pub struct LocalAccount {
address: AccountAddress,
key: AccountKey,
sequence_number: u64,
}
impl LocalAccount {
pub fn new<T: Into<AccountKey>>(address: AccountAddress, key: T, sequence_number: u64) -> Self {
Self {
address,
key: key.into(),
sequence_number,
}
}
pub fn generate<R>(rng: &mut R) -> Self
where
R: ::rand_core::RngCore + ::rand_core::CryptoRng,
{
let key = AccountKey::generate(rng);
let address = key.authentication_key().derived_address();
Self::new(address, key, 0)
}
pub fn sign_transaction(&self, txn: RawTransaction) -> SignedTransaction {
txn.sign(self.private_key(), self.public_key().clone())
.expect("Signing a txn can't fail")
.into_inner()
}
pub fn sign_with_transaction_builder(
&mut self,
builder: TransactionBuilder,
) -> SignedTransaction {
let raw_txn = builder
.sender(self.address())
.sequence_number(self.sequence_number())
.build();
*self.sequence_number_mut() += 1;
self.sign_transaction(raw_txn)
}
pub fn sign_multi_agent_with_transaction_builder(
&mut self,
secondary_signers: Vec<&Self>,
builder: TransactionBuilder,
) -> SignedTransaction {
let secondary_signer_addresses = secondary_signers
.iter()
.map(|signer| signer.address())
.collect();
let secondary_signer_privkeys = secondary_signers
.iter()
.map(|signer| signer.private_key())
.collect();
let raw_txn = builder
.sender(self.address())
.sequence_number(self.sequence_number())
.build();
*self.sequence_number_mut() += 1;
raw_txn
.sign_multi_agent(
self.private_key(),
secondary_signer_addresses,
secondary_signer_privkeys,
)
.expect("Signing multi agent txn failed")
.into_inner()
}
pub fn address(&self) -> AccountAddress {
self.address
}
pub fn private_key(&self) -> &Ed25519PrivateKey {
self.key.private_key()
}
pub fn public_key(&self) -> &Ed25519PublicKey {
self.key.public_key()
}
pub fn authentication_key(&self) -> AuthenticationKey {
self.key.authentication_key()
}
pub fn sequence_number(&self) -> u64 {
self.sequence_number
}
pub fn sequence_number_mut(&mut self) -> &mut u64 {
&mut self.sequence_number
}
pub fn rotate_key<T: Into<AccountKey>>(&mut self, new_key: T) -> AccountKey {
std::mem::replace(&mut self.key, new_key.into())
}
}
#[derive(Debug)]
pub struct AccountKey {
private_key: Ed25519PrivateKey,
public_key: Ed25519PublicKey,
authentication_key: AuthenticationKey,
}
impl AccountKey {
pub fn generate<R>(rng: &mut R) -> Self
where
R: ::rand_core::RngCore + ::rand_core::CryptoRng,
{
let private_key = Ed25519PrivateKey::generate(rng);
Self::from_private_key(private_key)
}
pub fn from_private_key(private_key: Ed25519PrivateKey) -> Self {
let public_key = Ed25519PublicKey::from(&private_key);
let authentication_key = AuthenticationKey::ed25519(&public_key);
Self {
private_key,
public_key,
authentication_key,
}
}
pub fn private_key(&self) -> &Ed25519PrivateKey {
&self.private_key
}
pub fn public_key(&self) -> &Ed25519PublicKey {
&self.public_key
}
pub fn authentication_key(&self) -> AuthenticationKey {
self.authentication_key
}
}
impl From<Ed25519PrivateKey> for AccountKey {
fn from(private_key: Ed25519PrivateKey) -> Self {
Self::from_private_key(private_key)
}
}