public PaillierAbstractCipher(PaillierKeyStruct p_key_struct)
{
// set the key details
o_key_struct = p_key_struct;
// calculate the blocksizes
o_plaintext_blocksize = p_key_struct.getPlaintextBlocksize();
o_ciphertext_blocksize = p_key_struct.getCiphertextBlocksize();
// set the default block for plaintext, which is suitable for encryption
o_block_size = o_plaintext_blocksize;
}
public PaillierManaged()
{
// create the key struct
o_key_struct = new PaillierKeyStruct();
// set all of the big integers to zero
o_key_struct.N = new BigInteger(0);
o_key_struct.G = new BigInteger(0);
o_key_struct.Lambda = new BigInteger(0);
o_key_struct.Miu = new BigInteger(0);
// set the default key size value
KeySizeValue = 1024;
// set the default padding mode
Padding = PaillierPaddingMode.LeadingZeros;
// set the range of legal keys
LegalKeySizesValue = new KeySizes[] { new KeySizes(384, 1088, 8) };
}
public PaillierDecryptor(PaillierKeyStruct p_struct)
: base(p_struct)
{
// set the default block size to be ciphertext
o_block_size = o_ciphertext_blocksize;
}
public PaillierEncryptor(PaillierKeyStruct p_struct)
: base(p_struct) // this base keyword means the constructor will use the base's constructor -TA
{
o_random = new Random();
}
public PaillierDecryptor(PaillierKeyStruct keyStruct)
: base(keyStruct)
{
}
public PaillierEncryptor(PaillierKeyStruct keyStruct)
: base(keyStruct)
{
rng = RandomNumberGenerator.Create();
}
public PaillierEncryptor(PaillierKeyStruct p_struct)
: base(p_struct)
{
o_random = new RNGCryptoServiceProvider();
}
