dash/src/bip39.h

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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 13:51:40 +02:00
/**
* Copyright (c) 2013-2014 Tomas Dzetkulic
* Copyright (c) 2013-2014 Pavol Rusnak
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef DASH_BIP39_H
#define DASH_BIP39_H
#include "support/allocators/secure.h"
class CMnemonic
{
public:
static SecureString Generate(int strength); // strength in bits
static SecureString FromData(const SecureVector& data, int len);
static bool Check(SecureString mnemonic);
// passphrase must be at most 256 characters or code may crash
static void ToSeed(SecureString mnemonic, SecureString passphrase, SecureVector& seedRet);
};
#endif