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Merge pull request #146 from navcoin/factor-out-blsct-wallet
Factor out BLSCT wallet code
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| // Copyright (c) 2024 The Navcoin developers | ||
| // Distributed under the MIT software license, see the accompanying | ||
| // file COPYING or http://www.opensource.org/licenses/mit-license.php. | ||
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| #include <blsct/eip_2333/bls12_381_keygen.h> | ||
| #include <blsct/wallet/helpers.h> | ||
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| namespace blsct { | ||
| uint64_t CalculateViewTag(const MclG1Point& blindingKey, const MclScalar& viewKey) | ||
| { | ||
| HashWriter hash{}; | ||
| hash << (blindingKey * viewKey); | ||
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| return (hash.GetHash().GetUint64(0) & 0xFFFF); | ||
| } | ||
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| CKeyID CalculateHashId(const MclG1Point& blindingKey, const MclG1Point& spendingKey, const MclScalar& viewKey) | ||
| { | ||
| auto t = blindingKey * viewKey; | ||
| auto dh = MclG1Point::GetBasePoint() * t.GetHashWithSalt(0).Negate(); | ||
| auto D_prime = spendingKey + dh; | ||
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| return blsct::PublicKey(D_prime).GetID(); | ||
| } | ||
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| MclScalar CalculatePrivateSpendingKey(const MclG1Point& blindingKey, const MclScalar& viewKey, const MclScalar& spendingKey, const int64_t& account, const uint64_t& address) | ||
| { | ||
| HashWriter string{}; | ||
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| string << std::vector<unsigned char>(subAddressHeader.begin(), subAddressHeader.end()); | ||
| string << viewKey; | ||
| string << account; | ||
| string << address; | ||
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| MclG1Point t = blindingKey * viewKey; | ||
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| return t.GetHashWithSalt(0) + spendingKey + MclScalar(string.GetHash()); | ||
| } | ||
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| MclG1Point CalculateNonce(const MclG1Point& blindingKey, const MclScalar& viewKey) | ||
| { | ||
| return blindingKey * viewKey; | ||
| } | ||
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| SubAddress DeriveSubAddress(const PrivateKey& viewKey, const PublicKey& spendKey, const SubAddressIdentifier& subAddressId) | ||
| { | ||
| return SubAddress(viewKey, spendKey, subAddressId); | ||
| } | ||
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| MclScalar FromSeedToChildKey(const MclScalar& seed) | ||
| { | ||
| return BLS12_381_KeyGen::derive_child_SK(seed, 130); | ||
| } | ||
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| MclScalar FromChildToTransactionKey(const MclScalar& seed) | ||
| { | ||
| return BLS12_381_KeyGen::derive_child_SK(seed, 0); | ||
| } | ||
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| MclScalar FromChildToBlindingKey(const MclScalar& seed) | ||
| { | ||
| return BLS12_381_KeyGen::derive_child_SK(seed, 1); | ||
| } | ||
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| MclScalar FromChildToTokenKey(const MclScalar& seed) | ||
| { | ||
| return BLS12_381_KeyGen::derive_child_SK(seed, 2); | ||
| } | ||
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| MclScalar FromTransactionToViewKey(const MclScalar& seed) | ||
| { | ||
| return BLS12_381_KeyGen::derive_child_SK(seed, 0); | ||
| } | ||
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| MclScalar FromTransactionToSpendKey(const MclScalar& seed) | ||
| { | ||
| return BLS12_381_KeyGen::derive_child_SK(seed, 1); | ||
| } | ||
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| MclScalar GenRandomSeed() | ||
| { | ||
| return BLS12_381_KeyGen::derive_master_SK(MclScalar::Rand(true).GetVch()); | ||
| } | ||
| } // namespace blsct |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| // Copyright (c) 2023 The Navcoin developers | ||
| // Distributed under the MIT software license, see the accompanying | ||
| // file COPYING or http://www.opensource.org/licenses/mit-license.php. | ||
|
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| #ifndef NAVCOIN_BLSCT_WALLET_HELPERS_H | ||
| #define NAVCOIN_BLSCT_WALLET_HELPERS_H | ||
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| #include <blsct/arith/mcl/mcl.h> | ||
| #include <blsct/public_key.h> | ||
| #include <blsct/wallet/address.h> | ||
| #include <hash.h> | ||
| #include <pubkey.h> | ||
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| namespace blsct { | ||
| uint64_t CalculateViewTag(const MclG1Point& blindingKey, const MclScalar& viewKey); | ||
| CKeyID CalculateHashId(const MclG1Point& blindingKey, const MclG1Point& spendingKey, const MclScalar& viewKey); | ||
| MclScalar CalculatePrivateSpendingKey(const MclG1Point& blindingKey, const MclScalar& viewKey, const MclScalar& spendingKey, const int64_t& account, const uint64_t& address); | ||
| MclG1Point CalculateNonce(const MclG1Point& blindingKey, const MclScalar& viewKey); | ||
| SubAddress DeriveSubAddress(const PrivateKey& viewKey, const PublicKey& spendKey, const SubAddressIdentifier& subAddressId); | ||
| MclScalar FromSeedToChildKey(const MclScalar& seed); | ||
| MclScalar FromChildToTransactionKey(const MclScalar& seed); | ||
| MclScalar FromChildToBlindingKey(const MclScalar& seed); | ||
| MclScalar FromChildToTokenKey(const MclScalar& seed); | ||
| MclScalar FromTransactionToViewKey(const MclScalar& seed); | ||
| MclScalar FromTransactionToSpendKey(const MclScalar& seed); | ||
| MclScalar GenRandomSeed(); | ||
| } // namespace blsct | ||
|
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| #endif // NAVCOIN_BLSCT_WALLET_HELPERS_H |
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