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All Bit and logical operators working

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This commit is contained in:
Jordi Baylina
2019-12-08 13:39:16 +01:00
parent eaf4396cb3
commit 1f94f7f3ec
12 changed files with 410 additions and 110 deletions
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79
c/zqfield.cpp
View File

@@ -5,6 +5,10 @@ ZqField::ZqField(PBigInt ap) {
mpz_init_set(p, *ap);
mpz_init_set_ui(zero, 0);
mpz_init_set_ui(one, 1);
nBits = mpz_sizeinbase (p, 2);
mpz_init(mask);
mpz_mul_2exp(mask, one, nBits-1);
mpz_sub(mask, mask, one);
}
ZqField::~ZqField() {
@@ -30,6 +34,14 @@ void ZqField::sub(PBigInt r, PBigInt a, PBigInt b) {
}
}
void ZqField::neg(PBigInt r, PBigInt a) {
if (mpz_sgn(*a) > 0) {
mpz_sub(*r, p, *a);
} else {
mpz_set(*r, *a);
}
}
void ZqField::mul(PBigInt r, PBigInt a, PBigInt b) {
mpz_mul(tmp,*a,*b);
mpz_fdiv_r(*r, tmp, p);
@@ -49,6 +61,10 @@ void ZqField::mod(PBigInt r, PBigInt a, PBigInt b) {
mpz_fdiv_r(*r, *a, *b);
}
void ZqField::pow(PBigInt r, PBigInt a, PBigInt b) {
mpz_powm(*r, *a, *b, p);
}
void ZqField::lt(PBigInt r, PBigInt a, PBigInt b) {
int c = mpz_cmp(*a, *b);
if (c<0) {
@@ -103,6 +119,30 @@ void ZqField::neq(PBigInt r, PBigInt a, PBigInt b) {
}
}
void ZqField::land(PBigInt r, PBigInt a, PBigInt b) {
if (mpz_sgn(*a) && mpz_sgn(*b)) {
mpz_set(*r, one);
} else {
mpz_set(*r, zero);
}
}
void ZqField::lor(PBigInt r, PBigInt a, PBigInt b) {
if (mpz_sgn(*a) || mpz_sgn(*b)) {
mpz_set(*r, one);
} else {
mpz_set(*r, zero);
}
}
void ZqField::lnot(PBigInt r, PBigInt a) {
if (mpz_sgn(*a)) {
mpz_set(*r, zero);
} else {
mpz_set(*r, one);
}
}
int ZqField::isTrue(PBigInt a) {
return mpz_sgn(*a);
}
@@ -110,3 +150,42 @@ int ZqField::isTrue(PBigInt a) {
void ZqField::copyn(PBigInt a, PBigInt b, int n) {
for (int i=0;i<n; i++) mpz_set(a[i], b[i]);
}
void ZqField::band(PBigInt r, PBigInt a, PBigInt b) {
mpz_and(*r, *a, *b);
mpz_and(*r, *r, mask);
}
void ZqField::bor(PBigInt r, PBigInt a, PBigInt b) {
mpz_ior(*r, *a, *b);
mpz_and(*r, *r, mask);
}
void ZqField::bxor(PBigInt r, PBigInt a, PBigInt b) {
mpz_xor(*r, *a, *b);
mpz_and(*r, *r, mask);
}
void ZqField::bnot(PBigInt r, PBigInt a) {
mpz_xor(*r, *a, mask);
mpz_and(*r, *r, mask);
}
void ZqField::shl(PBigInt r, PBigInt a, PBigInt b) {
if (mpz_cmp_ui(*b, nBits) >= 0) {
mpz_set(*r, zero);
} else {
mpz_mul_2exp(*r, *a, mpz_get_ui(*b));
mpz_and(*r, *r, mask);
}
}
void ZqField::shr(PBigInt r, PBigInt a, PBigInt b) {
if (mpz_cmp_ui(*b, nBits) >= 0) {
mpz_set(*r, zero);
} else {
mpz_tdiv_q_2exp(*r, *a, mpz_get_ui(*b));
mpz_and(*r, *r, mask);
}
}

18
c/zqfield.h
View File

@@ -10,22 +10,40 @@ public:
BigInt p;
BigInt one;
BigInt zero;
size_t nBits;
BigInt mask;
ZqField(PBigInt ap);
~ZqField();
void copyn(PBigInt a, PBigInt b, int n);
void add(PBigInt r,PBigInt a, PBigInt b);
void sub(PBigInt r,PBigInt a, PBigInt b);
void neg(PBigInt r,PBigInt a);
void mul(PBigInt r,PBigInt a, PBigInt b);
void div(PBigInt r,PBigInt a, PBigInt b);
void idiv(PBigInt r,PBigInt a, PBigInt b);
void mod(PBigInt r,PBigInt a, PBigInt b);
void pow(PBigInt r,PBigInt a, PBigInt b);
void lt(PBigInt r, PBigInt a, PBigInt b);
void eq(PBigInt r, PBigInt a, PBigInt b);
void gt(PBigInt r, PBigInt a, PBigInt b);
void leq(PBigInt r, PBigInt a, PBigInt b);
void geq(PBigInt r, PBigInt a, PBigInt b);
void neq(PBigInt r, PBigInt a, PBigInt b);
void land(PBigInt r, PBigInt a, PBigInt b);
void lor(PBigInt r, PBigInt a, PBigInt b);
void lnot(PBigInt r, PBigInt a);
void band(PBigInt r, PBigInt a, PBigInt b);
void bor(PBigInt r, PBigInt a, PBigInt b);
void bxor(PBigInt r, PBigInt a, PBigInt b);
void bnot(PBigInt r, PBigInt a);
void shl(PBigInt r, PBigInt a, PBigInt b);
void shr(PBigInt r, PBigInt a, PBigInt b);
int isTrue(PBigInt a);
};