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First step in converting to C: num

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This commit is contained in:
Pieter Wuille
2013-03-24 10:38:35 +01:00
parent 21b74c7e5f
commit 4adf6b2a32
17 changed files with 508 additions and 472 deletions
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20
field.cpp
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@@ -363,7 +363,14 @@ static const unsigned char field_p_[] = {0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFE,0xFF,0xFF,0xFC,0x2F};
FieldConstants::FieldConstants() : field_p(field_p_, sizeof(field_p_)) {}
FieldConstants::FieldConstants() {
secp256k1_num_init(&field_p);
secp256k1_num_set_bin(&field_p, field_p_, sizeof(field_p_));
}
FieldConstants::~FieldConstants() {
secp256k1_num_free(&field_p);
}
const FieldConstants &GetFieldConst() {
static const FieldConstants field_const;
@@ -408,10 +415,13 @@ void FieldElem::SetInverse(FieldElem &a) {
a.Normalize();
a.GetBytes(b);
{
const Number &p = GetFieldConst().field_p;
Number n; n.SetBytes(b, 32);
n.SetModInverse(n, p);
n.GetBytes(b, 32);
const secp256k1_num_t &p = GetFieldConst().field_p;
secp256k1_num_t n;
secp256k1_num_init(&n);
secp256k1_num_set_bin(&n, b, 32);
secp256k1_num_mod_inverse(&n, &n, &p);
secp256k1_num_get_bin(b, 32, &n);
secp256k1_num_free(&n);
}
SetBytes(b);
#endif