diff options
Diffstat (limited to 'src/walletdb.cpp')
| -rw-r--r-- | src/walletdb.cpp | 38 |
1 files changed, 33 insertions, 5 deletions
diff --git a/src/walletdb.cpp b/src/walletdb.cpp index 635fda1b42..efcd59d5f1 100644 --- a/src/walletdb.cpp +++ b/src/walletdb.cpp @@ -306,6 +306,8 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue, } CKey key; CPrivKey pkey; + uint256 hash = 0; + if (strType == "key") { wss.nKeys++; @@ -315,14 +317,40 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue, ssValue >> wkey; pkey = wkey.vchPrivKey; } - if (!key.SetPrivKey(pkey, vchPubKey.IsCompressed())) + + // Old wallets store keys as "key" [pubkey] => [privkey] + // ... which was slow for wallets with lots of keys, because the public key is re-derived from the private key + // using EC operations as a checksum. + // Newer wallets store keys as "key"[pubkey] => [privkey][hash(pubkey,privkey)], which is much faster while + // remaining backwards-compatible. + try { - strErr = "Error reading wallet database: CPrivKey corrupt"; - return false; + ssValue >> hash; + } + catch(...){} + + bool fSkipCheck = false; + + if (hash != 0) + { + // hash pubkey/privkey to accelerate wallet load + std::vector<unsigned char> vchKey; + vchKey.reserve(vchPubKey.size() + pkey.size()); + vchKey.insert(vchKey.end(), vchPubKey.begin(), vchPubKey.end()); + vchKey.insert(vchKey.end(), pkey.begin(), pkey.end()); + + if (Hash(vchKey.begin(), vchKey.end()) != hash) + { + strErr = "Error reading wallet database: CPubKey/CPrivKey corrupt"; + return false; + } + + fSkipCheck = true; } - if (key.GetPubKey() != vchPubKey) + + if (!key.Load(pkey, vchPubKey, fSkipCheck)) { - strErr = "Error reading wallet database: CPrivKey pubkey inconsistency"; + strErr = "Error reading wallet database: CPrivKey corrupt"; return false; } if (!pwallet->LoadKey(key, vchPubKey)) |