public GGHModel(int dim, int l, VectorND errorVector)
{
this.dim = dim;
this.l = l;
k = (int)Math.Round(l * Math.Sqrt(dim));
do
{
GeneratePrivateKey();
GeneratePublicKey();
} while (privateKeyR.Det() == 0 || publicKeyB.Det() == 0);
privateKeyR1 = privateKeyR.Invert();
publicKeyB1 = publicKeyB.Invert();
GenerateLattice();
if (errorVector == null || errorVector.dim != dim)
{
GenerateErrorVector();
}
else
{
this.errorVector = errorVector;
errorVectorIntern = new MatrixND(dim, 1);
for (int i = 0; i < dim; i++)
{
errorVectorIntern[i, 0] = (double)errorVector.values[i];
}
}
}
public static MatrixND Power(MatrixND m, int pow) // Power matrix to exponent
{
if (pow == 0)
{
return(IdentityMatrix(m.rows, m.cols));
}
if (pow == 1)
{
return(m.Duplicate());
}
if (pow == -1)
{
return(m.Invert());
}
MatrixND x;
if (pow < 0)
{
x = m.Invert(); pow *= -1;
}
else
{
x = m.Duplicate();
}
MatrixND ret = IdentityMatrix(m.rows, m.cols);
while (pow != 0)
{
if ((pow & 1) == 1)
{
ret *= x;
}
x *= x;
pow >>= 1;
}
return(ret);
}
public void SetPrivateKeyManually(MatrixND newPrivateKeyR, bool generatePublicKey)
{
privateKeyR = newPrivateKeyR;
privateKeyR1 = privateKeyR.Invert();
if (!generatePublicKey)
{
return;
}
do
{
GeneratePublicKey();
} while (publicKeyB.Det() == 0);
publicKeyB1 = publicKeyB.Invert();
}
public GGHModel(int dim, MatrixND privateKeyR, MatrixND publicKeyB, VectorND errorVector)
{
this.dim = dim;
this.privateKeyR = privateKeyR;
this.publicKeyB = publicKeyB;
privateKeyR1 = privateKeyR.Invert();
publicKeyB1 = publicKeyB.Invert();
GenerateLattice();
this.errorVector = errorVector;
errorVectorIntern = new MatrixND(dim, 1);
for (int i = 0; i < dim; i++)
{
errorVectorIntern[i, 0] = (double)errorVector.values[i];
}
}
public void SetPublicKeyManually(MatrixND newPublicKeyB)
{
publicKeyB = newPublicKeyB;
publicKeyB1 = publicKeyB.Invert();
}