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refactor: Use Span of std::byte in CExtKey::SetSeed

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MarcoFalke 2021-11-08 14:27:35 +01:00 • committed by MacroFake
parent fae1006019
commit facd1fb911
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GPG key ID: CE2B75697E69A548
4 changed files with 8 additions and 7 deletions
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4
src/key.cpp
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@ -340,11 +340,11 @@ bool CExtKey::Derive(CExtKey &out, unsigned int _nChild) const {
return key.Derive(out.key, out.chaincode, _nChild, chaincode);
}
void CExtKey::SetSeed(Span<const uint8_t> seed)
void CExtKey::SetSeed(Span<const std::byte> seed)
{
static const unsigned char hashkey[] = {'B','i','t','c','o','i','n',' ','s','e','e','d'};
std::vector<unsigned char, secure_allocator<unsigned char>> vout(64);
CHMAC_SHA512{hashkey, sizeof(hashkey)}.Write(seed.data(), seed.size()).Finalize(vout.data());
CHMAC_SHA512{hashkey, sizeof(hashkey)}.Write(UCharCast(seed.data()), seed.size()).Finalize(vout.data());
key.Set(vout.data(), vout.data() + 32, true);
memcpy(chaincode.begin(), vout.data() + 32, 32);
nDepth = 0;

4
src/key.h
View file

@ -85,7 +85,7 @@ public:
//! Simple read-only vector-like interface.
unsigned int size() const { return (fValid ? keydata.size() : 0); }
const unsigned char* data() const { return keydata.data(); }
const std::byte* data() const { return reinterpret_cast<const std::byte*>(keydata.data()); }
const unsigned char* begin() const { return keydata.data(); }
const unsigned char* end() const { return keydata.data() + size(); }
@ -178,7 +178,7 @@ struct CExtKey {
void Decode(const unsigned char code[BIP32_EXTKEY_SIZE]);
bool Derive(CExtKey& out, unsigned int nChild) const;
CExtPubKey Neuter() const;
void SetSeed(Span<const uint8_t> seed);
void SetSeed(Span<const std::byte> seed);
};
/** Initialize the elliptic curve support. May not be called twice without calling ECC_Stop first. */

5
src/test/bip32_tests.cpp
View file

@ -120,8 +120,9 @@ const std::vector<std::string> TEST5 = {
"xprv9s21ZrQH143K3QTDL4LXw2F7HEK3wJUD2nW2nRk4stbPy6cq3jPPqjiChkVvvNKmPGJxWUtg6LnF5kejMRNNU3TGtRBeJgk33yuGBxrMPHL"
};
void RunTest(const TestVector &test) {
std::vector<unsigned char> seed = ParseHex(test.strHexMaster);
void RunTest(const TestVector& test)
{
std::vector<std::byte> seed{ParseHex<std::byte>(test.strHexMaster)};
CExtKey key;
CExtPubKey pubkey;
key.SetSeed(seed);

2
src/test/key_io_tests.cpp
View file

@ -35,7 +35,7 @@ BOOST_AUTO_TEST_CASE(key_io_valid_parse)
continue;
}
std::string exp_base58string = test[0].get_str();
std::vector<unsigned char> exp_payload = ParseHex(test[1].get_str());
const std::vector<std::byte> exp_payload{ParseHex<std::byte>(test[1].get_str())};
const UniValue &metadata = test[2].get_obj();
bool isPrivkey = find_value(metadata, "isPrivkey").get_bool();
SelectParams(find_value(metadata, "chain").get_str());