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C-style cast cleanup (partial)

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Replace C-style casts with C++ casts.
This commit is contained in:
Nekotekina 2019-11-28 21:18:37 +03:00
parent 8bd52c9843
commit 5b9df53c13
20 changed files with 280 additions and 334 deletions
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52
rpcs3/Crypto/ec.cpp
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@ -416,49 +416,6 @@ static void point_mul(struct point *d, u8 *a, struct point *b) // a is bignum
}
}
static void generate_ecdsa(u8 *R, u8 *S, u8 *k, u8 *hash)
{
u8 e[21];
u8 kk[21];
u8 m[21];
u8 minv[21];
struct point mG;
e[0] = 0;
memcpy(e + 1, hash, 20);
bn_reduce(e, ec_N, 21);
try_again:
prng(m, 21);
m[0] = 0;
if (bn_compare(m, ec_N, 21) >= 0)
goto try_again;
// R = (mG).x
point_mul(&mG, m, &ec_G);
point_from_mon(&mG);
R[0] = 0;
elt_copy(R+1, mG.x);
// S = m**-1*(e + Rk) (mod N)
bn_copy(kk, k, 21);
bn_reduce(kk, ec_N, 21);
bn_to_mon(m, ec_N, 21);
bn_to_mon(e, ec_N, 21);
bn_to_mon(R, ec_N, 21);
bn_to_mon(kk, ec_N, 21);
bn_mon_mul(S, R, kk, ec_N, 21);
bn_add(kk, S, e, ec_N, 21);
bn_mon_inv(minv, m, ec_N, 21);
bn_mon_mul(S, minv, kk, ec_N, 21);
bn_from_mon(R, ec_N, 21);
bn_from_mon(S, ec_N, 21);
}
static int check_ecdsa(struct point *Q, u8 *R, u8 *S, u8 *hash)
{
u8 Sinv[21];
@ -515,14 +472,14 @@ int ecdsa_set_curve(u8* p, u8* a, u8* b, u8* N, u8* Gx, u8* Gy)
memcpy(ec_N, N, 21);
memcpy(ec_G.x, Gx, 20);
memcpy(ec_G.y, Gy, 20);
bn_to_mon(ec_a, ec_p, 20);
bn_to_mon(ec_b, ec_p, 20);
point_to_mon(&ec_G);
return 0;
}
}
void ecdsa_set_pub(u8 *Q)
{
@ -540,8 +497,3 @@ int ecdsa_verify(u8 *hash, u8 *R, u8 *S)
{
return check_ecdsa(&ec_Q, R, S, hash);
}
void ecdsa_sign(u8 *hash, u8 *R, u8 *S)
{
generate_ecdsa(R, S, ec_k, hash);
}