arrayofciphers.cpp

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#include "ciphertext.hpp"
#include "ciphergroup.hpp"
#include "arrayofciphers.hpp"


using namespace elGamal;


ArrayOfCiphers::ArrayOfCiphers(verifierUtils::ByteTree * bt, CipherGroup c)
{
        if ( (!bt->isNode()) || (bt->size() != 2) )
        {
                std::cout<<"ERROR: in ArrayOfCiphers(bt,c): bt is not a"
                         <<"Node or is not of size 2.\nbt=";
                bt->prettyPrint("");
                std::cout<<std::endl;
                exit(1);
        }
        arithm::ArrayOfElmts uPrime(bt->getChild(0),c.getGrp());
        arithm::ArrayOfElmts vPrime(bt->getChild(1),c.getGrp());
        u = uPrime;
        v = vPrime;
}


ArrayOfCiphers::ArrayOfCiphers(
        arithm::ArrayOfElmts left, arithm::ArrayOfElmts right) :
        u(left), v(right)
{
        if (u.size() != v.size())
        {
                std::cout<<"ERROR: in ArrayOfCiphers(left,right), left"
                         <<"and right are not of the same size."
                         <<"\nleft.size()="<<left.size()
                         <<"\right.size()="<<right.size()
                         <<std::endl;
                exit(1);
        }
}


verifierUtils::ByteTree * ArrayOfCiphers::toByteTree()
{
        verifierUtils::ByteTree * result = new verifierUtils::Node();
        result->addChild(u.toByteTree());
        result->addChild(v.toByteTree());
        return result;
}


arithm::ArrayOfElmts ArrayOfCiphers::getUarray()
{
        return u;
}


arithm::ArrayOfElmts ArrayOfCiphers::getVarray()
{
        return v;
}


CipherText ArrayOfCiphers::getCipherText(unsigned int index)
{
        return CipherText(u.getElmt(index), v.getElmt(index));
}


unsigned int ArrayOfCiphers::size()
{
        return u.size();
}