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experimental crypto: point_t helpers, muladd test

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sowle 2021-04-13 02:44:42 +03:00
parent 561c72b68b
commit a01cc99c3b
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1 changed files with 25 additions and 0 deletions
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25
tests/functional_tests/crypto_tests.cpp
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@ -531,6 +531,18 @@ struct point_t
zero();
}
point_t(uint64_t a0, uint64_t a1, uint64_t a2, uint64_t a3)
{
crypto::public_key pk;
((uint64_t*)&pk)[0] = a0;
((uint64_t*)&pk)[1] = a0;
((uint64_t*)&pk)[2] = a0;
((uint64_t*)&pk)[3] = a0;
if (!from_public_key(pk))
zero();
}
void zero()
{
ge_p3_0(&m_p3);
@ -552,6 +564,14 @@ struct point_t
return ge_frombytes_vartime(&m_p3, reinterpret_cast<const unsigned char*>(&ki)) == 0;
}
bool from_string(const std::string& str)
{
crypto::public_key pk;
if (!epee::string_tools::parse_tpod_from_hex_string(str, pk))
return false;
return from_public_key(pk);
}
crypto::public_key to_public_key() const
{
crypto::public_key result;
@ -1298,6 +1318,8 @@ TEST(crypto, scalar_basics)
scalar_t one = 1;
ASSERT_FALSE(one.is_zero());
ASSERT_TRUE(one > zero);
ASSERT_TRUE(one.muladd(zero, zero) == zero);
scalar_t z = 0;
for (size_t j = 0; j < 1000; ++j)
{
@ -1306,6 +1328,9 @@ TEST(crypto, scalar_basics)
ASSERT_TRUE(z.is_reduced());
ASSERT_TRUE(z > z - 1);
ASSERT_TRUE(z < z + 1);
ASSERT_TRUE(z.muladd(one, zero) == z);
ASSERT_TRUE(z.muladd(zero, one) == one);
ASSERT_TRUE(z.muladd(z, z) == z * z + z);
}
ASSERT_TRUE(c_scalar_L > 0 && !(c_scalar_L < 0));