// tests key pair generation from a passphrase
private void GenerateKeyPair()
{
NTRUParameters param = (NTRUParameters)NTRUParamSets.EES1087EP2FAST.DeepCopy();
byte[] passphrase = Encoding.Unicode.GetBytes("password123");
byte[] salt = new CSPPrng().GetBytes(16);
NTRUKeyPair kp1;
using (NTRUKeyGenerator kg = new NTRUKeyGenerator(param, false)) // note: parallel must be turned off with passphrase prng
kp1 = (NTRUKeyPair)kg.GenerateKeyPair(passphrase, salt);
NTRUKeyPair kp2;
using (NTRUKeyGenerator kg = new NTRUKeyGenerator(param, false))
kp2 = (NTRUKeyPair)kg.GenerateKeyPair(passphrase, salt);
NTRUEncrypt ntru = new NTRUEncrypt(param);
NTRUEncrypt ntru2 = new NTRUEncrypt(NTRUParamSets.EES1087EP2FAST);
if (!kp1.Equals(kp2))
{
throw new Exception("NtruEncryptTest: key pair generation test failed!");
}
salt = ntru.GenerateSalt();
NTRUKeyPair kp3;
using (NTRUKeyGenerator kg = new NTRUKeyGenerator(param, false))
kp3 = (NTRUKeyPair)kg.GenerateKeyPair(passphrase, salt);
if (!Evaluate.False(kp1.Equals(kp3)))
{
throw new Exception("NtruEncryptTest: key pair generation test failed!");
}
}