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Move ECCSignature to Common::ec and give it a less confusing name

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This commit is contained in:
Léo Lam
2018-05-21 15:40:29 +02:00
parent 44827ba369
commit bea1e38c67
6 changed files with 23 additions and 20 deletions
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8
Source/Core/Common/Crypto/ec.cpp
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@ -241,7 +241,7 @@ static void silly_random(u8* rndArea, u8 count)
}
}
std::array<u8, 60> Sign(const u8* key, const u8* hash)
Signature Sign(const u8* key, const u8* hash)
{
u8 e[30]{};
memcpy(e + 10, hash, 20);
@ -272,7 +272,7 @@ std::array<u8, 60> Sign(const u8* key, const u8* hash)
bn_inv(minv, m, ec_N, sizeof(minv));
bn_mul(s.data.data(), minv, kk, ec_N, 30);
std::array<u8, 60> signature;
Signature signature;
std::copy(r.data.cbegin(), r.data.cend(), signature.begin());
std::copy(s.data.cbegin(), s.data.cend(), signature.begin() + 30);
return signature;
@ -300,10 +300,10 @@ bool VerifySignature(const u8* public_key, const u8* signature, const u8* hash)
return (bn_compare(rx.data(), R, 30) == 0);
}
std::array<u8, 60> PrivToPub(const u8* key)
PublicKey PrivToPub(const u8* key)
{
const Point data = key * ec_G;
std::array<u8, 60> result;
PublicKey result;
std::copy_n(data.Data(), result.size(), result.begin());
return result;
}

7
Source/Core/Common/Crypto/ec.h
View File

@ -10,8 +10,11 @@
namespace Common::ec
{
using Signature = std::array<u8, 60>;
using PublicKey = std::array<u8, 60>;
/// Generate a signature using ECDSA.
std::array<u8, 60> Sign(const u8* key, const u8* hash);
Signature Sign(const u8* key, const u8* hash);
/// Check a signature using ECDSA.
///
@ -24,5 +27,5 @@ bool VerifySignature(const u8* public_key, const u8* signature, const u8* hash);
std::array<u8, 60> ComputeSharedSecret(const u8* private_key, const u8* public_key);
/// Convert a ECC private key (30 bytes) to a public key (60 bytes).
std::array<u8, 60> PrivToPub(const u8* key);
PublicKey PrivToPub(const u8* key);
} // namespace Common::ec