lthn/blockchain
2
0
Fork 1
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

experimental crypto: assign_mul_plus_G, c_point_H

Browse source
This commit is contained in:
sowle 2021-04-21 17:34:36 +03:00
parent efa8065d3d
commit 07ce36d4ee
No known key found for this signature in database
GPG key ID: C07A24B2D89D49FC
1 changed files with 7 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
tests/functional_tests/crypto_tests.cpp
View file

@ -666,6 +666,12 @@ struct point_t
return result;
}
// *this = a * A + b * G
void assign_mul_plus_G(const scalar_t& a, const point_t& A, const scalar_t& b)
{
ge_double_scalarmult_base_vartime_p3(&m_p3, &a.m_s[0], &A.m_p3, &b.m_s[0]);
}
friend bool operator==(const point_t& lhs, const point_t& rhs)
{
// convert to xy form, then compare components (because (x, y, z, t) representation is not unique)
@ -761,6 +767,7 @@ static const scalar_t c_scalar_P = { 0xffffffffffffffed, 0xffffffffffffffff
static const scalar_t c_scalar_Pm1 = { 0xffffffffffffffec, 0xffffffffffffffff, 0xffffffffffffffff, 0x7fffffffffffffff };
static const scalar_t c_scalar_256m1 = { 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff };
static const scalar_t c_scalar_1div8 = { 0x6106e529e2dc2f79, 0x7d39db37d1cdad0, 0x0, 0x600000000000000 };
static const point_t c_point_H = { 0x05087c1f5b9b32d6, 0x00547595f445c3b5, 0x764df64578552f2a, 0x8a49a651e0e0da45 }; // == Hp(G), this is being check in bpp_basics
// H_s hash function