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Use boost::variant to represent shielded addresses and keys

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libzcash::PaymentAddress has been renamed to libzcash::SproutPaymentAddress,
and a new typedef boost::variant is now libzcash::PaymentAddress. Similarly
for ViewingKey and SpendingKey.

A new class InvalidEncoding is introduced as the default boost::variant
option for each address and key type; it is used during decoding instead
of boost::optional.

All address and key storage functions in the wallet have been modified to
refer specifically to the Sprout types, as they are used very precisely.
In most other cases, the more general type is leveraged as much as possible,
and we convert to the Sprout type when necessary. This will be subsequently
wrapped in, or replaced with, context-specific functions once Sapling
types are implemented.
This commit is contained in:
Jack Grigg
2018-04-26 02:51:17 +01:00
parent 1942f7a42b
commit e5eab182b5
40 changed files with 488 additions and 336 deletions
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18
src/wallet/walletdb.cpp
View File

@@ -105,7 +105,7 @@ bool CWalletDB::WriteCryptedKey(const CPubKey& vchPubKey,
return true;
}
bool CWalletDB::WriteCryptedZKey(const libzcash::PaymentAddress & addr,
bool CWalletDB::WriteCryptedZKey(const libzcash::SproutPaymentAddress & addr,
const libzcash::ReceivingKey &rk,
const std::vector<unsigned char>& vchCryptedSecret,
const CKeyMetadata &keyMeta)
@@ -131,7 +131,7 @@ bool CWalletDB::WriteMasterKey(unsigned int nID, const CMasterKey& kMasterKey)
return Write(std::make_pair(std::string("mkey"), nID), kMasterKey, true);
}
bool CWalletDB::WriteZKey(const libzcash::PaymentAddress& addr, const libzcash::SpendingKey& key, const CKeyMetadata &keyMeta)
bool CWalletDB::WriteZKey(const libzcash::SproutPaymentAddress& addr, const libzcash::SproutSpendingKey& key, const CKeyMetadata &keyMeta)
{
nWalletDBUpdated++;
@@ -142,13 +142,13 @@ bool CWalletDB::WriteZKey(const libzcash::PaymentAddress& addr, const libzcash::
return Write(std::make_pair(std::string("zkey"), addr), key, false);
}
bool CWalletDB::WriteViewingKey(const libzcash::ViewingKey &vk)
bool CWalletDB::WriteViewingKey(const libzcash::SproutViewingKey &vk)
{
nWalletDBUpdated++;
return Write(std::make_pair(std::string("vkey"), vk), '1');
}
bool CWalletDB::EraseViewingKey(const libzcash::ViewingKey &vk)
bool CWalletDB::EraseViewingKey(const libzcash::SproutViewingKey &vk)
{
nWalletDBUpdated++;
return Erase(std::make_pair(std::string("vkey"), vk));
@@ -485,7 +485,7 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
}
else if (strType == "vkey")
{
libzcash::ViewingKey vk;
libzcash::SproutViewingKey vk;
ssKey >> vk;
char fYes;
ssValue >> fYes;
@@ -498,9 +498,9 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
}
else if (strType == "zkey")
{
libzcash::PaymentAddress addr;
libzcash::SproutPaymentAddress addr;
ssKey >> addr;
libzcash::SpendingKey key;
libzcash::SproutSpendingKey key;
ssValue >> key;
if (!pwallet->LoadZKey(key))
@@ -607,7 +607,7 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
}
else if (strType == "czkey")
{
libzcash::PaymentAddress addr;
libzcash::SproutPaymentAddress addr;
ssKey >> addr;
// Deserialization of a pair is just one item after another
uint256 rkValue;
@@ -641,7 +641,7 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
}
else if (strType == "zkeymeta")
{
libzcash::PaymentAddress addr;
libzcash::SproutPaymentAddress addr;
ssKey >> addr;
CKeyMetadata keyMeta;
ssValue >> keyMeta;