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wallet: Switch from SaplingSpendingKey to SaplingExtendedSpendingKey

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The wallet now only stores Sapling extended spending keys, and thus can
only be used with keys generated from an HDSeed via ZIP 32.

Note that not all Sapling keys in the wallet will correspond to the
wallet's HDSeed, as a standalone Sapling xsk can be imported via
z_importkey. However, it must have been generated from a seed itself,
and thus is more likely to be backed up elsewhere.
This commit is contained in:
Jack Grigg
2018-08-29 00:07:07 +01:00
parent a4ac4fc3f4
commit 70b4ad2dcd
23 changed files with 190 additions and 122 deletions
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23
src/wallet/gtest/test_wallet_zkeys.cpp
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@@ -21,8 +21,18 @@ TEST(wallet_zkeys_tests, store_and_load_sapling_zkeys) {
wallet.GetSaplingPaymentAddresses(addrs);
ASSERT_EQ(0, addrs.size());
// wallet should have one key
// No HD seed in the wallet
EXPECT_ANY_THROW(wallet.GenerateNewSaplingZKey());
// Load the all-zeroes seed
CKeyingMaterial rawSeed(32, 0);
HDSeed seed(rawSeed);
wallet.LoadHDSeed(seed);
// Now this call succeeds
auto address = wallet.GenerateNewSaplingZKey();
// wallet should have one key
wallet.GetSaplingPaymentAddresses(addrs);
ASSERT_EQ(1, addrs.size());
@@ -30,15 +40,16 @@ TEST(wallet_zkeys_tests, store_and_load_sapling_zkeys) {
ASSERT_TRUE(wallet.HaveSaplingIncomingViewingKey(address));
// manually add new spending key to wallet
auto sk = libzcash::SaplingSpendingKey::random();
ASSERT_TRUE(wallet.AddSaplingZKey(sk, sk.default_address()));
auto m = libzcash::SaplingExtendedSpendingKey::Master(seed);
auto sk = m.Derive(0);
ASSERT_TRUE(wallet.AddSaplingZKey(sk, sk.DefaultAddress()));
// verify wallet did add it
auto fvk = sk.full_viewing_key();
auto fvk = sk.expsk.full_viewing_key();
ASSERT_TRUE(wallet.HaveSaplingSpendingKey(fvk));
// verify spending key stored correctly
libzcash::SaplingSpendingKey keyOut;
libzcash::SaplingExtendedSpendingKey keyOut;
wallet.GetSaplingSpendingKey(fvk, keyOut);
ASSERT_EQ(sk, keyOut);
@@ -46,7 +57,7 @@ TEST(wallet_zkeys_tests, store_and_load_sapling_zkeys) {
wallet.GetSaplingPaymentAddresses(addrs);
EXPECT_EQ(2, addrs.size());
EXPECT_EQ(1, addrs.count(address));
EXPECT_EQ(1, addrs.count(sk.default_address()));
EXPECT_EQ(1, addrs.count(sk.DefaultAddress()));
}
/**