本文整理汇总了C++中ECn2类的典型用法代码示例。如果您正苦于以下问题：C++ ECn2类的具体用法？C++ ECn2怎么用？C++ ECn2使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了ECn2类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: line
ZZn12 line(ECn2& A,ECn2& C,ECn2& B,ZZn2& slope,ZZn2& extra,BOOL Doubling,ZZn& Qx,ZZn& Qy)
{
ZZn12 w;
ZZn4 nn,dd;
ZZn2 X,Y;
ZZn2 Z3;
C.getZ(Z3);
// Thanks to A. Menezes for pointing out this optimization...
if (Doubling)
{
ZZn2 Z,ZZ;
A.get(X,Y,Z);
ZZ=Z; ZZ*=ZZ;
nn.set((Z3*ZZ)*Qy,slope*X-extra);
dd.set(-(ZZ*slope)*Qx);
}
else
{
ZZn2 X2,Y2;
B.get(X2,Y2);
nn.set(Z3*Qy,slope*X2-Y2*Z3);
dd.set(-slope*Qx);
}
w.set(nn,dd);
return w;
}示例2: mul
ECn2 mul(Big& a,ECn2& P,Big& b,ECn2& Q)
{
ECn2 R;
ecn2_mul2_jsf(a.getbig(),&(P.fn),b.getbig(),&(Q.fn),&(R.fn));
R.norm();
return R;
}示例3: q_power_frobenius
void q_power_frobenius(ECn2 &A,ZZn2 &F)
{
// Fast multiplication of A by q (for Trace-Zero group members only)
ZZn2 x,y,z,w,r;
#ifdef AFFINE
A.get(x,y);
#else
A.get(x,y,z);
#endif
w=F*F;
r=F;
if (get_mip()->TWIST==MR_SEXTIC_M) r=inverse(F); // could be precalculated
if (get_mip()->TWIST==MR_SEXTIC_D) r=F;
w=r*r;
x=w*conj(x);
y=r*w*conj(y);
#ifdef AFFINE
A.set(x,y);
#else
z.conj();
A.set(x,y,z);
#endif
}示例4: line
ZZn12 line(ECn2& A,ECn2& C,ZZn2& slope,ZZn& Qx,ZZn& Qy)
{
ZZn12 w;
ZZn6 nn,dd;
ZZn2 X,Y;
#ifdef AFFINE
A.get(X,Y);
dd.set(slope*Qx,Y-slope*X);
nn.set((ZZn2)-Qy);
w.set(nn,dd);
#endif
#ifdef PROJECTIVE
ZZn2 Z,Z2,ZZ,ZZZ;
A.get(X,Y,Z);
C.getZ(Z2);
ZZ=Z*Z;
ZZZ=ZZ*Z;
dd.set((ZZZ*slope)*Qx,Z2*Y-Z*X*slope);
nn.set((ZZn2)-(ZZZ*Z2)*Qy);
w.set(nn,dd);
#endif
return w;
}示例5: HashG2
ECn2 HashG2(ECn2 &Qx0, Big &x, ZZn2 &X){
//vector=[ 1, 2, 4 ]
ECn2 r;
ECn2 xA;
ECn2 xB;
ECn2 xC;
ECn2 t0;
ECn2 Qx0_;
ECn2 Qx1;
ECn2 Qx1_;
ECn2 Qx2;
ECn2 Qx2_;
ECn2 Qx3;
ECn2 Qx3_;
Qx0_=-(Qx0);
Qx1=x*Qx0;
Qx1_=-(Qx1);
Qx2=x*Qx1;
Qx2_=-(Qx2);
Qx3=x*Qx2;
Qx3_=-(Qx3);
xA=Qx0;
xB=Qx0;
t0=xA+xB;
xB=psi(Qx1,X,2);
t0=t0+xB;
t0+=t0;
xB=Qx1_;
xC=Qx2_;
xB+=xC;
xC=Qx3;
xB+=xC;
xC=psi(Qx0,X,1);
xB+=xC;
xC=psi(Qx1_,X,1);
xB+=xC;
xC=psi(Qx2_,X,1);
xB+=xC;
xC=psi(Qx3,X,1);
xB+=xC;
xC=psi(Qx0_,X,2);
xB+=xC;
xC=psi(Qx2_,X,2);
xB+=xC;
xB.norm();
t0=t0+xB;
r=t0;
r.norm();
return r;
}示例6: q_power_frobenius
void q_power_frobenius(ECn2 &A,ZZn2 &F)
{
// Fast multiplication of A by q (for Trace-Zero group members only)
ZZn2 x,y,z,w,r;
// Faster method
#ifdef AFFINE
A.get(x,y);
#else
A.get(x,y,z);
#endif
w=F*F;
r=F;
x=w*conj(x);
y=r*w*conj(y);
#ifdef AFFINE
A.set(x,y);
#else
z=conj(z);
A.set(x,y,z);
#endif
/*
// First "untwist" the point A to (X,Y) where X,Y in F_p^{12}
A.get(x,y);
h.clear();
l.set1(x);
X.set(l,h);
l.clear();
h.set1(y);
Y.set(l,h);
// Apply the Frobenius..
X.powq(F);
Y.powq(F);
// Now "twist" it back to A
X.get(l,h);
l.get1(x);
Y.get(l,h);
h.get1(y);
A.set(x,y);
*/
}示例7: g
ZZn4 g(ECn2& A,ECn2& B,ZZn& Qx,ZZn& Qy)
{
ZZn2 lam;
ECn2 P=A;
// Evaluate line from A
A.add(B,lam);
if (A.iszero()) return (ZZn4)1;
return line(P,lam,Qx,Qy);
}示例8: q_power_frobenius
void q_power_frobenius(ECn2 &A,ZZn2 &F)
{
ZZn2 x,y,z,w,r;
A.get(x,y,z);
w=F*F;
r=F;
x=w*conj(x);
y=r*w*conj(y);
z.conj();
A.set(x,y,z);
}示例9: g
ZZn12 g(ECn2& A,ECn2& B,ZZn& Qx,ZZn& Qy)
{
ZZn2 lam,extra;
ZZn12 r;
ECn2 P=A;
BOOL Doubling;
// Evaluate line from A
Doubling=A.add(B,lam,extra);
if (A.iszero()) return (ZZn12)1;
r=line(P,A,B,lam,extra,Doubling,Qx,Qy);
return r;
}示例10: hash_and_map2
ECn2 hash_and_map2(char *ID)
{
int i;
ECn2 S;
ZZn2 X;
Big x0=H1(ID);
forever
{
x0+=1;
X.set((ZZn)1,(ZZn)x0);
if (!S.set(X)) continue;
break;
}
return S;
} 示例11: g
ZZn12 g(ECn2& A,ECn2& B,ZZn& Qx,ZZn& Qy)
{
ZZn2 lam;
ZZn12 r;
ECn2 P=A;
// int fpcb=fpc;
// Evaluate line from A
A.add(B,lam);
//cout << "point addition/doubling= " << fpc-fpcb << endl;
if (A.iszero()) return (ZZn12)1;
//fpcb=fpc;
r=line(P,A,lam,Qx,Qy);
//cout << "line calculation= " << fpc-fpcb << endl;
//cout << "r= " << r << endl;
return r;
}示例12: mul4
ECn2 mul4(ECn2* P,const Big* b)
{
int i,n=4;
ECn2 R;
big x[4];
ecn2 p[4];
for (i=0;i<n;i++)
{
x[i]=b[i].getbig();
p[i]=P[i].fn;
}
ecn2_mult4(x,p,&(R.fn));
R.norm();
return R;
}示例13: hash2
ECn2 hash2(char *ID,Big cof2)
{
ECn2 T;
ZZn2 x;
Big x0,y0=0;
x0=H1(ID);
do
{
x.set(x0,y0);
x0+=1;
}
while (!is_on_curve(x));
T.set(x);
T*=cof2;
return T;
} 示例14: hash2
ECn2 hash2(char *ID)
{
ECn2 T;
ZZn2 x;
Big x0,y0=0;
x0=H1(ID);
do
{
x.set(x0,y0);
x0+=1;
}
while (!is_on_curve(x));
T.set(x);
// cout << "T= " << T << endl;
return T;
} 示例15: hash_and_map2
ECn2 hash_and_map2(char *ID)
{
int i;
ECn2 S;
ZZn2 X;
Big x0=H1(ID);
forever
{
x0+=1;
X.set((ZZn)0,(ZZn)x0);
//cout << "X= " << X << endl;
if (!S.set(X)) continue;
break;
}
// cout << "S= " << S << endl;
return S;
}