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Add option to use static address #926

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merged 3 commits into from
Dec 7, 2022
Merged

Add option to use static address #926

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ab787d3
Add option to use static address
BertrandD Dec 5, 2022
f71b628
Merge branch 'main' into feat/static_address
BertrandD Dec 6, 2022
08a8f53
Add unit test on keychain for static address generation
BertrandD Dec 6, 2022
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2 changes: 2 additions & 0 deletions core/idl/wallet/configuration.djinni
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Expand Up @@ -82,6 +82,8 @@ Configuration = interface +c {
const KEYCHAIN_DERIVATION_SCHEME: string = "KEYCHAIN_DERIVATION_SCHEME";
# Sets the observable range for HD keychains (BIP32 based).
const KEYCHAIN_OBSERVABLE_RANGE: string = "KEYCHAIN_OBSERVABLE_RANGE";
# Use a static address for receive & change.
const KEYCHAIN_STATIC_ADDRESS: string = "KEYCHAIN_STATIC_ADDRESS";

# Selects the blockchain explorer engine (Ledger's API, Electrum server, RPC):
const BLOCKCHAIN_EXPLORER_ENGINE: string = "BLOCKCHAIN_EXPLORER_ENGINE";
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2 changes: 2 additions & 0 deletions core/src/api/Configuration.cpp
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3 changes: 3 additions & 0 deletions core/src/api/Configuration.hpp
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7 changes: 7 additions & 0 deletions core/src/wallet/bitcoin/keychains/CommonBitcoinLikeKeychains.cpp
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Expand Up @@ -205,6 +205,9 @@ namespace ledger {

BitcoinLikeKeychain::Address CommonBitcoinLikeKeychains::getFreshAddress(BitcoinLikeKeychain::KeyPurpose purpose) {
KeychainPersistentState state = getState();
if (getConfiguration()->getBoolean(api::Configuration::KEYCHAIN_STATIC_ADDRESS).value_or(false)) {
return derive(purpose, 0);
}
return derive(purpose, (purpose == KeyPurpose::RECEIVE ? state.maxConsecutiveReceiveIndex : state.maxConsecutiveChangeIndex));
}

Expand All @@ -214,6 +217,10 @@ namespace ledger {

std::vector<BitcoinLikeKeychain::Address>
CommonBitcoinLikeKeychains::getFreshAddresses(BitcoinLikeKeychain::KeyPurpose purpose, size_t n) {
if (getConfiguration()->getBoolean(api::Configuration::KEYCHAIN_STATIC_ADDRESS).value_or(false)) {
return {derive(purpose, 0)};
}

KeychainPersistentState state = getState();
auto startOffset = (purpose == KeyPurpose::RECEIVE) ? state.maxConsecutiveReceiveIndex : state.maxConsecutiveChangeIndex;
std::vector<BitcoinLikeKeychain::Address> result(n);
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