dash/src/keystore.h
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

120 lines
3.8 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.
#ifndef BITCOIN_KEYSTORE_H
#define BITCOIN_KEYSTORE_H
#include "hdchain.h"
#include "key.h"
#include "pubkey.h"
#include "script/script.h"
#include "script/standard.h"
#include "sync.h"
#include <boost/signals2/signal.hpp>
#include <boost/variant.hpp>
/** A virtual base class for key stores */
class CKeyStore
{
protected:
mutable CCriticalSection cs_KeyStore;
public:
virtual ~CKeyStore() {}
//! Add a key to the store.
virtual bool AddKeyPubKey(const CKey &key, const CPubKey &pubkey) =0;
virtual bool AddKey(const CKey &key);
//! Check whether a key corresponding to a given address is present in the store.
virtual bool HaveKey(const CKeyID &address) const =0;
virtual bool GetKey(const CKeyID &address, CKey& keyOut) const =0;
virtual void GetKeys(std::set<CKeyID> &setAddress) const =0;
virtual bool GetPubKey(const CKeyID &address, CPubKey& vchPubKeyOut) const =0;
//! Support for BIP 0013 : see https://github.com/bitcoin/bips/blob/master/bip-0013.mediawiki
virtual bool AddCScript(const CScript& redeemScript) =0;
virtual bool HaveCScript(const CScriptID &hash) const =0;
virtual bool GetCScript(const CScriptID &hash, CScript& redeemScriptOut) const =0;
//! Support for Watch-only addresses
virtual bool AddWatchOnly(const CScript &dest) =0;
virtual bool RemoveWatchOnly(const CScript &dest) =0;
virtual bool HaveWatchOnly(const CScript &dest) const =0;
virtual bool HaveWatchOnly() const =0;
};
typedef std::map<CKeyID, CKey> KeyMap;
typedef std::map<CKeyID, CPubKey> WatchKeyMap;
typedef std::map<CScriptID, CScript > ScriptMap;
typedef std::set<CScript> WatchOnlySet;
/** Basic key store, that keeps keys in an address->secret map */
class CBasicKeyStore : public CKeyStore
{
protected:
KeyMap mapKeys;
WatchKeyMap mapWatchKeys;
ScriptMap mapScripts;
WatchOnlySet setWatchOnly;
/* the HD chain data model*/
CHDChain hdChain;
public:
bool AddKeyPubKey(const CKey& key, const CPubKey &pubkey);
bool GetPubKey(const CKeyID &address, CPubKey& vchPubKeyOut) const;
bool HaveKey(const CKeyID &address) const
{
bool result;
{
LOCK(cs_KeyStore);
result = (mapKeys.count(address) > 0);
}
return result;
}
void GetKeys(std::set<CKeyID> &setAddress) const
{
setAddress.clear();
{
LOCK(cs_KeyStore);
KeyMap::const_iterator mi = mapKeys.begin();
while (mi != mapKeys.end())
{
setAddress.insert((*mi).first);
mi++;
}
}
}
bool GetKey(const CKeyID &address, CKey &keyOut) const
{
{
LOCK(cs_KeyStore);
KeyMap::const_iterator mi = mapKeys.find(address);
if (mi != mapKeys.end())
{
keyOut = mi->second;
return true;
}
}
return false;
}
virtual bool AddCScript(const CScript& redeemScript);
virtual bool HaveCScript(const CScriptID &hash) const;
virtual bool GetCScript(const CScriptID &hash, CScript& redeemScriptOut) const;
virtual bool AddWatchOnly(const CScript &dest);
virtual bool RemoveWatchOnly(const CScript &dest);
virtual bool HaveWatchOnly(const CScript &dest) const;
virtual bool HaveWatchOnly() const;
bool GetHDChain(CHDChain& hdChainRet) const;
};
typedef std::vector<unsigned char, secure_allocator<unsigned char> > CKeyingMaterial;
typedef std::map<CKeyID, std::pair<CPubKey, std::vector<unsigned char> > > CryptedKeyMap;
#endif // BITCOIN_KEYSTORE_H