public GrothVSSHE(
int n,
BigInteger p_ENC,
BigInteger q_ENC,
BigInteger g_ENC,
BigInteger h_ENC,
long ell_e,
long fieldsize,
long subgroupsize)
{
l_e = ell_e;
IChannel lej = new ChannelOneWay();
p = p_ENC;
q = q_ENC;
g = g_ENC;
h = h_ENC;
// Initialize the commitment scheme and Groth's SKC argument
com = new PedersenCommitmentScheme(n, fieldsize, subgroupsize);
com.PublishGroup(lej);
skc = new GrothSKC(n, lej, ell_e);
// Compute $2^{\ell_e}$ for the input reduction.
exp2l_e = new BigInteger(2).Pow(ell_e);
}
public GrothVSSHE(
int n,
BigInteger p_ENC,
BigInteger q_ENC,
BigInteger k_ENC,
BigInteger g_ENC,
BigInteger h_ENC,
long ell_e,
long fieldsize,
long subgroupsize)
{
l_e = ell_e;
p = p_ENC;
q = q_ENC;
g = g_ENC;
h = h_ENC;
System.Diagnostics.Debug.WriteLine("GrothVSSHE::GrothVSSHE p " + p_ENC.BitLength());
System.Diagnostics.Debug.WriteLine("GrothVSSHE::GrothVSSHE q " + q_ENC.BitLength());
System.Diagnostics.Debug.WriteLine("GrothVSSHE::GrothVSSHE k " + k_ENC.BitLength());
System.Diagnostics.Debug.WriteLine("GrothVSSHE::GrothVSSHE g " + g_ENC.BitLength());
System.Diagnostics.Debug.WriteLine("GrothVSSHE::GrothVSSHE h " + h_ENC.BitLength());
// Initialize the commitment scheme and Groth's SKC argument
com = new PedersenCommitmentScheme(n, p_ENC, q_ENC, k_ENC, h_ENC, fieldsize, subgroupsize);
System.Diagnostics.Debug.WriteLine("GrothVSSHE::GrothVSSHE h " + h_ENC.BitLength());
IChannel lej = new ChannelOneWay();//TODO this is ugly as hell!!! constructors should not take streams they should take symbols
com.PublishGroup(lej);
System.Diagnostics.Debug.WriteLine("GrothVSSHE::GrothVSSHE h " + h_ENC.BitLength());
skc = new GrothSKC(n, lej, ell_e, fieldsize, subgroupsize);
// Compute $2^{\ell_e}$ for the input reduction.
exp2l_e = new BigInteger(2).Pow((int)ell_e);
System.Diagnostics.Debug.WriteLine("GrothVSSHE::GrothVSSHE h " + h_ENC.BitLength());
}
public GrothVSSHE(
int n,
IInputChannel input_channel,
long ell_e,
long fieldsize,
long subgroupsize)
{
l_e = ell_e;
p = input_channel.Recieve();
q = input_channel.Recieve();
g = input_channel.Recieve();
h = input_channel.Recieve();
com = new PedersenCommitmentScheme(n, input_channel, fieldsize, subgroupsize);
IChannel lej = new ChannelOneWay();//TODO this is ugly as hell!!! constructors should not take streams they should take symbols
com.PublishGroup(lej);
skc = new GrothSKC(n, lej, ell_e, fieldsize, subgroupsize);
// Compute $2^{\ell_e}$ for the input reduction.
exp2l_e = new BigInteger(2).Pow(ell_e);
}