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[Wallet] extend CKeyMetadata with HD keypath

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This commit is contained in:
Jonas Schnelli 2016-07-09 11:41:01 +02:00
parent 67caef6730
commit 5b95dd2c25
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GPG Key ID: 29D4BCB6416F53EC
2 changed files with 14 additions and 1 deletions
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2
src/wallet/wallet.cpp
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@ -126,6 +126,8 @@ CPubKey CWallet::GenerateNewKey()
// childIndex | BIP32_HARDENED_KEY_LIMIT = derive childIndex in hardened child-index-range // childIndex | BIP32_HARDENED_KEY_LIMIT = derive childIndex in hardened child-index-range
// example: 1 | BIP32_HARDENED_KEY_LIMIT == 0x80000001 == 2147483649 // example: 1 | BIP32_HARDENED_KEY_LIMIT == 0x80000001 == 2147483649
externalChainChildKey.Derive(childKey, hdChain.nExternalChainCounter | BIP32_HARDENED_KEY_LIMIT); externalChainChildKey.Derive(childKey, hdChain.nExternalChainCounter | BIP32_HARDENED_KEY_LIMIT);
metadata.hdKeypath = "m/0'/0'/"+std::to_string(hdChain.nExternalChainCounter)+"'";
metadata.hdMasterKeyID = hdChain.masterKeyID;
// increment childkey index // increment childkey index
hdChain.nExternalChainCounter++; hdChain.nExternalChainCounter++;
} while(HaveKey(childKey.key.GetPubKey().GetID())); } while(HaveKey(childKey.key.GetPubKey().GetID()));

13
src/wallet/walletdb.h
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@ -73,9 +73,13 @@ public:
class CKeyMetadata class CKeyMetadata
{ {
public: public:
static const int CURRENT_VERSION=1; static const int VERSION_BASIC=1;
static const int VERSION_WITH_HDDATA=10;
static const int CURRENT_VERSION=VERSION_WITH_HDDATA;
int nVersion; int nVersion;
int64_t nCreateTime; // 0 means unknown int64_t nCreateTime; // 0 means unknown
std::string hdKeypath; //optional HD/bip32 keypath
CKeyID hdMasterKeyID; //id of the hd masterkey used to derive this key
CKeyMetadata() CKeyMetadata()
{ {
@ -85,6 +89,7 @@ public:
{ {
nVersion = CKeyMetadata::CURRENT_VERSION; nVersion = CKeyMetadata::CURRENT_VERSION;
nCreateTime = nCreateTime_; nCreateTime = nCreateTime_;
hdKeypath.clear();
} }
ADD_SERIALIZE_METHODS; ADD_SERIALIZE_METHODS;
@ -94,12 +99,18 @@ public:
READWRITE(this->nVersion); READWRITE(this->nVersion);
nVersion = this->nVersion; nVersion = this->nVersion;
READWRITE(nCreateTime); READWRITE(nCreateTime);
if (this->nVersion >= VERSION_WITH_HDDATA)
{
READWRITE(hdKeypath);
READWRITE(hdMasterKeyID);
}
} }
void SetNull() void SetNull()
{ {
nVersion = CKeyMetadata::CURRENT_VERSION; nVersion = CKeyMetadata::CURRENT_VERSION;
nCreateTime = 0; nCreateTime = 0;
hdKeypath.clear();
} }
}; };