public static BigInteger Encrypt(int val, PublicKey publicKey)
{
BigInteger core = 0;
var r = RandomNumberGenerator.Create();
byte[] randomBuff = new byte[1];
for(int i = 0; i < publicKey.KeyParts.Length; i++)
{
r.GetBytes(randomBuff);
if(i == 0 || randomBuff[0] % 2 == 1)
core = core + publicKey.KeyParts[i];
}
r.GetNonZeroBytes(randomBuff);
return core + (publicKey.MaxNum * randomBuff[0]) + val;
}
private static BigInteger Encrypt(int m, PublicKey publicKey)
{
BigInteger b = 0;
var r = RandomNumberGenerator.Create();
for(int i = 0; i < publicKey.KeyParts.Length; i++)
{
byte[] bb = new byte[1];
r.GetBytes(bb);
var random = bb[0]%2;
Console.Write(random);
if(i == 0 || random == 1)
b = b + publicKey.KeyParts[i];
}
Console.WriteLine();
return b + m;
}
public static BigInteger[] EncryptVector(int[] vector, PublicKey publicKey)
{
return vector.Select(i => Encrypt(i, publicKey)).ToArray();
}
private static void Vote(string host, KeyValuePair<User, int[]>[] voters, Guid id, PublicKey publicKey)
{
log.Info("Voting in parallel...");
var candidateTasks = voters.Select(kvp => ElectroClient.VoteAsync(host, Program.PORT, kvp.Key.Cookies, id, HomoCrypto.EncryptVector(kvp.Value, publicKey))).ToArray();
try
{
Task.WaitAll();
log.InfoFormat("Voted by {0} users", voters.Length);
}
catch(Exception e)
{
throw new ServiceException(ExitCode.DOWN, string.Format("Failed to vote by {0} users in parallel: {1}", candidateTasks.Length, e));
}
}
