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b224a47a1Add address_types test (Pieter Wuille)7ee54fd7cSupport downgrading after recovered keypool witness keys (Pieter Wuille)940a21932SegWit wallet support (Pieter Wuille)f37c64e47Implicitly know about P2WPKH redeemscripts (Pieter Wuille)57273f2b3[test] Serialize CTransaction with witness by default (Pieter Wuille)cf2c0b6f5Support P2WPKH and P2SH-P2WPKH in dumpprivkey (Pieter Wuille)37c03d3e0Support P2WPKH addresses in create/addmultisig (Pieter Wuille)3eaa003c8Extend validateaddress information for P2SH-embedded witness (Pieter Wuille)30a27dc5bExpose method to find key for a single-key destination (Pieter Wuille)985c79552Improve witness destination types and use them more (Pieter Wuille)cbe197470[refactor] GetAccount{PubKey,Address} -> GetAccountDestination (Pieter Wuille)0c8ea6380Abstract out IsSolvable from Witnessifier (Pieter Wuille) Pull request description: This implements a minimum viable implementation of SegWit wallet support, based on top of #11389, and includes part of the functionality from #11089. Two new configuration options are added: * `-addresstype`, with options `legacy`, `p2sh`, and `bech32`. It controls what kind of addresses are produced by `getnewaddress`, `getaccountaddress`, and `createmultisigaddress`. * `-changetype`, with the same options, and by default equal to `-addresstype`, that controls what kind of change is used. All wallet private and public keys can be used for any type of address. Support for address types dependent on different derivation paths will need a major overhaul of how our internal detection of outputs work. I expect that that will happen for a next major version. The above also applies to imported keys, as having a distinction there but not for normal operations is a disaster for testing, and probably for comprehension of users. This has some ugly effects, like needing to associate the provided label to `importprivkey` with each style address for the corresponding key. To deal with witness outputs requiring a corresponding redeemscript in wallet, three approaches are used: * All SegWit addresses created through `getnewaddress` or multisig RPCs explicitly get their redeemscripts added to the wallet file. This means that downgrading after creating a witness address will work, as long as the wallet file is up to date. * All SegWit keys in the wallet get an _implicit_ redeemscript added, without it being written to the file. This means recovery of an old backup will work, as long as you use new software. * All keypool keys that are seen used in transactions explicitly get their redeemscripts added to the wallet files. This means that downgrading after recovering from a backup that includes a witness address will work. These approaches correspond to solutions 3a, 1a, and 5a respectively from https://gist.github.com/sipa/125cfa1615946d0c3f3eec2ad7f250a2. As argued there, there is no full solution for dealing with the case where you both downgrade and restore a backup, so that's also not implemented. `dumpwallet`, `importwallet`, `importmulti`, `signmessage` and `verifymessage` don't work with SegWit addresses yet. They're remaining TODOs, for this PR or a follow-up. Because of that, several tests unexpectedly run with `-addresstype=legacy` for now. Tree-SHA512: d425dbe517c0422061ab8dacdc3a6ae47da071450932ed992c79559d922dff7b2574a31a8c94feccd3761c1dffb6422c50055e6dca8e3cf94a169bc95e39e959
89 lines
3.3 KiB
C++
89 lines
3.3 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2017 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_KEYSTORE_H
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#define BITCOIN_KEYSTORE_H
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#include <key.h>
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#include <pubkey.h>
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#include <script/script.h>
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#include <script/standard.h>
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#include <sync.h>
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#include <boost/signals2/signal.hpp>
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/** A virtual base class for key stores */
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class CKeyStore
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{
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protected:
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mutable CCriticalSection cs_KeyStore;
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public:
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virtual ~CKeyStore() {}
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//! Add a key to the store.
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virtual bool AddKeyPubKey(const CKey &key, const CPubKey &pubkey) =0;
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virtual bool AddKey(const CKey &key);
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//! Check whether a key corresponding to a given address is present in the store.
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virtual bool HaveKey(const CKeyID &address) const =0;
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virtual bool GetKey(const CKeyID &address, CKey& keyOut) const =0;
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virtual std::set<CKeyID> GetKeys() const =0;
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virtual bool GetPubKey(const CKeyID &address, CPubKey& vchPubKeyOut) const =0;
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//! Support for BIP 0013 : see https://github.com/bitcoin/bips/blob/master/bip-0013.mediawiki
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virtual bool AddCScript(const CScript& redeemScript) =0;
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virtual bool HaveCScript(const CScriptID &hash) const =0;
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virtual std::set<CScriptID> GetCScripts() const =0;
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virtual bool GetCScript(const CScriptID &hash, CScript& redeemScriptOut) const =0;
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//! Support for Watch-only addresses
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virtual bool AddWatchOnly(const CScript &dest) =0;
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virtual bool RemoveWatchOnly(const CScript &dest) =0;
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virtual bool HaveWatchOnly(const CScript &dest) const =0;
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virtual bool HaveWatchOnly() const =0;
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};
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typedef std::map<CKeyID, CKey> KeyMap;
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typedef std::map<CKeyID, CPubKey> WatchKeyMap;
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typedef std::map<CScriptID, CScript > ScriptMap;
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typedef std::set<CScript> WatchOnlySet;
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/** Basic key store, that keeps keys in an address->secret map */
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class CBasicKeyStore : public CKeyStore
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{
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protected:
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KeyMap mapKeys;
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WatchKeyMap mapWatchKeys;
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ScriptMap mapScripts;
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WatchOnlySet setWatchOnly;
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void ImplicitlyLearnRelatedKeyScripts(const CPubKey& pubkey);
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public:
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bool AddKeyPubKey(const CKey& key, const CPubKey &pubkey) override;
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bool GetPubKey(const CKeyID &address, CPubKey& vchPubKeyOut) const override;
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bool HaveKey(const CKeyID &address) const override;
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std::set<CKeyID> GetKeys() const override;
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bool GetKey(const CKeyID &address, CKey &keyOut) const override;
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bool AddCScript(const CScript& redeemScript) override;
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bool HaveCScript(const CScriptID &hash) const override;
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std::set<CScriptID> GetCScripts() const override;
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bool GetCScript(const CScriptID &hash, CScript& redeemScriptOut) const override;
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bool AddWatchOnly(const CScript &dest) override;
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bool RemoveWatchOnly(const CScript &dest) override;
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bool HaveWatchOnly(const CScript &dest) const override;
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bool HaveWatchOnly() const override;
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};
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typedef std::vector<unsigned char, secure_allocator<unsigned char> > CKeyingMaterial;
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typedef std::map<CKeyID, std::pair<CPubKey, std::vector<unsigned char> > > CryptedKeyMap;
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/** Return the CKeyID of the key involved in a script (if there is a unique one). */
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CKeyID GetKeyForDestination(const CKeyStore& store, const CTxDestination& dest);
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#endif // BITCOIN_KEYSTORE_H
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