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Add gtest for change address derivation. 

Check that derivation of the UFVK change address is consistent
irrespective of the path by which it is derived.
This commit is contained in:
Kris Nuttycombe 2022-01-30 11:09:06 -07:00
parent 9afea4f10b
commit acacc044fc
1 changed files with 16 additions and 0 deletions
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16
src/gtest/test_zip32.cpp
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@ -172,3 +172,19 @@ TEST(ZIP32, diversifier_index_t_lt)
EXPECT_FALSE(libzcash::diversifier_index_t(0xffffffff) < libzcash::diversifier_index_t(0x01));
}
TEST(ZIP32, DeriveChangeAddress)
{
std::vector<unsigned char, secure_allocator<unsigned char>> rawSeed {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31};
HDSeed seed(rawSeed);
auto accountSk = libzcash::SaplingExtendedSpendingKey::ForAccount(seed, 1, 0);
auto extfvk = accountSk.first.ToXFVK();
auto changeSk = accountSk.first.DeriveInternalKey();
auto changeDfvk = extfvk.GetInternalDFVK();
EXPECT_EQ(changeDfvk.DefaultAddress(), extfvk.GetChangeAddress());
EXPECT_EQ(changeSk.ToXFVK().DefaultAddress(), extfvk.GetChangeAddress());
}