dash/src/keystore.cpp
UdjinM6 27f3218de9 HD wallet (#1405)
* HD wallet

Minimal set of changes (no refactoring) backported from Bitcoin upstream to make HD wallets work in Dash 0.12.1.x+

* minimal bip44 (hardcoded account and change)

* minimal bip39

Additional cmd-line options for new wallet:
-mnemonic
-mnemonicpassphrase

* Do not recreate HD wallet on encryption

Adjusted keypool.py test

* Do not store any private keys for hd wallet besides the master one

Derive all keys on the fly.
Original idea/implementation - btc PR9298, backported and improved

* actually use bip39

* pbkdf2 test

* backport wallet-hd.py test

* Allow specifying hd seed, add dumphdseed rpc, fix bugs

- -hdseed cmd-line param to specify HD seed on wallet creation
- dumphdseed rpc to dump HD seed
- allow seed of any size
- fix dumpwallet rpc bug (wasn't decrypting HD seed)
- print HD seed and extended public masterkey on dumpwallet

* top up keypool on HD wallet encryption

* split HD chain: external/internal

* add missing cs_wallet lock in init.cpp

* fix `const char *` issues (use strings)

* default mnemonic passphrase is an empty string in all cases

* store mnemonic/mnemonicpassphrase

replace dumphdseed with dumphdinfo

* Add fCrypted flag to CHDChain

* prepare internal structures for multiple HD accounts

(plus some code cleanup)

* use secure allocator for storing sensitive HD data

* use secure strings for mnemonic(passphrase)

* small fix in GenerateNewHDChain

* use 24 words for mnemonic by default

* make sure mnemonic passphrase provided by user does not exceed 256 symbols

* more usage of secure allocators and memory_cleanse

* code cleanup

* rename: CSecureVector -> SecureVector

* add missing include

* fix warning in rpcdump.cpp

* refactor mnemonic_check (also fix a bug)

* move bip39 functions to CMnemonic

* Few fixes for CMnemonic:
- use `SecureVector` for data, bits, seed
- `Check` should return bool

* init vectors with desired size where possible
2017-05-29 14:51:40 +03:00

122 lines
3.1 KiB
C++

// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2015 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "keystore.h"
#include "key.h"
#include "pubkey.h"
#include "util.h"
#include <boost/foreach.hpp>
bool CKeyStore::AddKey(const CKey &key) {
return AddKeyPubKey(key, key.GetPubKey());
}
bool CBasicKeyStore::GetPubKey(const CKeyID &address, CPubKey &vchPubKeyOut) const
{
CKey key;
if (!GetKey(address, key)) {
LOCK(cs_KeyStore);
WatchKeyMap::const_iterator it = mapWatchKeys.find(address);
if (it != mapWatchKeys.end()) {
vchPubKeyOut = it->second;
return true;
}
return false;
}
vchPubKeyOut = key.GetPubKey();
return true;
}
bool CBasicKeyStore::AddKeyPubKey(const CKey& key, const CPubKey &pubkey)
{
LOCK(cs_KeyStore);
mapKeys[pubkey.GetID()] = key;
return true;
}
bool CBasicKeyStore::AddCScript(const CScript& redeemScript)
{
if (redeemScript.size() > MAX_SCRIPT_ELEMENT_SIZE)
return error("CBasicKeyStore::AddCScript(): redeemScripts > %i bytes are invalid", MAX_SCRIPT_ELEMENT_SIZE);
LOCK(cs_KeyStore);
mapScripts[CScriptID(redeemScript)] = redeemScript;
return true;
}
bool CBasicKeyStore::HaveCScript(const CScriptID& hash) const
{
LOCK(cs_KeyStore);
return mapScripts.count(hash) > 0;
}
bool CBasicKeyStore::GetCScript(const CScriptID &hash, CScript& redeemScriptOut) const
{
LOCK(cs_KeyStore);
ScriptMap::const_iterator mi = mapScripts.find(hash);
if (mi != mapScripts.end())
{
redeemScriptOut = (*mi).second;
return true;
}
return false;
}
static bool ExtractPubKey(const CScript &dest, CPubKey& pubKeyOut)
{
//TODO: Use Solver to extract this?
CScript::const_iterator pc = dest.begin();
opcodetype opcode;
std::vector<unsigned char> vch;
if (!dest.GetOp(pc, opcode, vch) || vch.size() < 33 || vch.size() > 65)
return false;
pubKeyOut = CPubKey(vch);
if (!pubKeyOut.IsFullyValid())
return false;
if (!dest.GetOp(pc, opcode, vch) || opcode != OP_CHECKSIG || dest.GetOp(pc, opcode, vch))
return false;
return true;
}
bool CBasicKeyStore::AddWatchOnly(const CScript &dest)
{
LOCK(cs_KeyStore);
setWatchOnly.insert(dest);
CPubKey pubKey;
if (ExtractPubKey(dest, pubKey))
mapWatchKeys[pubKey.GetID()] = pubKey;
return true;
}
bool CBasicKeyStore::RemoveWatchOnly(const CScript &dest)
{
LOCK(cs_KeyStore);
setWatchOnly.erase(dest);
CPubKey pubKey;
if (ExtractPubKey(dest, pubKey))
mapWatchKeys.erase(pubKey.GetID());
return true;
}
bool CBasicKeyStore::HaveWatchOnly(const CScript &dest) const
{
LOCK(cs_KeyStore);
return setWatchOnly.count(dest) > 0;
}
bool CBasicKeyStore::HaveWatchOnly() const
{
LOCK(cs_KeyStore);
return (!setWatchOnly.empty());
}
bool CBasicKeyStore::GetHDChain(CHDChain& hdChainRet) const
{
hdChainRet = hdChain;
return !hdChain.IsNull();
}