public void Test_Shamir_InitiateSecretWith_Y_P_Array()
{
SecretSharingCore.Algorithms.Shamir shamir = new SecretSharingCore.Algorithms.Shamir();
var n = 10;
var k = 3;
var secret = 1234;
//assign
var shares = shamir.DivideSecret(k, n,secret);
var initiatedShares = new List<SecretSharingCore.Common.IShareCollection>();
//assert
Assert.AreEqual(shares.Count, n);
int j = 0;
foreach (var col in shares)
{
j++;
SecretSharingCore.Common.IShareCollection collection = new SecretSharingCore.Common.ShareCollection();
for (int i = 0; i < col.GetCount(); i++)
{
Assert.IsNotNull(col.GetShare(i).GetY());
Assert.IsNotNull(col.GetShare(i).GetP());
SecretSharingCore.Common.ShamirShare myshare = new SecretSharingCore.Common.ShamirShare(col.GetShare(i).GetX(), col.GetShare(i).GetY()
, col.GetShare(i).GetP());
Assert.AreEqual(col.GetShare(i).ToString(), myshare.ToString());
collection.SetShare(i, myshare);
}
initiatedShares.Add(collection);
if (j == k) break;
}
var reconsecret = shamir.ReconstructSecret(initiatedShares);
Assert.AreEqual(secret,reconsecret);
}
public List <IShareCollection> DivideSecretWithChunkSizeWrapper(int n, int k, int ChunkSize, String Secret, ref List <long> ElapsedTicks
#if calcPrimeTime
, ref double PrimeGenerationTime, ref double allTime
#endif
)
{
if (n == 0)
{
n = 1;
}
if (k == 0)
{
k = 1;
}
Stopwatch sw = new Stopwatch();
sw.Start();
SecretSharingCore.Algorithms.Shamir shamir = new SecretSharingCore.Algorithms.Shamir();
var byteSecret = Encoding.UTF8.GetBytes(Secret.ToCharArray());
#if calcPrimeTime
double primeElapsed = 0;
var a = shamir.DivideSecret(k, n, byteSecret, ChunkSize, ref primeElapsed);
PrimeGenerationTime += Math.Pow(primeElapsed, 2.0);
allTime += Math.Pow((double)sw.ElapsedTicks, 2.0);
#else
var a = shamir.DivideSecret(k, n, byteSecret, ChunkSize);
#endif
sw.Stop();
ElapsedTicks.Add(sw.ElapsedTicks);
return(a);
}
public void Test_Shamir_DivideStringSecret()
{
SecretSharingCore.Algorithms.Shamir shamir = new SecretSharingCore.Algorithms.Shamir();
var n = 10;
var k = 3;
var secret = "1234567812345678123456781234567812345678123456781234567812345678";
//assign
var shares = shamir.DivideStringSecret(k, n, secret,(byte) 32);
//assert
Assert.AreEqual(shares.Count, n);
}
public void Test_Shamir_DivideSecret()
{
SecretSharingCore.Algorithms.Shamir shamir = new SecretSharingCore.Algorithms.Shamir();
var n = 10;
var k = 3;
var secret = "12345678";
//assign
var shares = shamir.DivideSecret(k, n,Encoding.UTF8.GetBytes(secret));
//assert
Assert.AreEqual(shares.Count, n);
}
public void TestStringDivideSecret()
{
SecretSharingCore.Algorithms.Shamir shamir = new SecretSharingCore.Algorithms.Shamir();
var n = 10;
var k = 3;
var secret = "1234567812345678123456781234567812345678123456781234567812345678";
//assign
var shares = shamir.DivideStringSecret(k, n, secret, (byte)32);
//assert
Assert.AreEqual(shares.Count, n);
}
public void TestDivideSecret()
{
SecretSharingCore.Algorithms.Shamir shamir = new SecretSharingCore.Algorithms.Shamir();
var n = 10;
var k = 3;
var secret = "12345678";
//assign
var shares = shamir.DivideSecret(k, n, Encoding.UTF8.GetBytes(secret));
//assert
Assert.AreEqual(shares.Count, n);
}
public void TestStringReconstructSecret()
{
SecretSharingCore.Algorithms.Shamir shamir = new SecretSharingCore.Algorithms.Shamir();
var n = 5;
var k = 1;
var secret = "12345678123456781234567812345678"; //12345678123456781234567812345678";
//assign
var shares = shamir.DivideStringSecret(k, n, secret, (byte)16);
var kShares = shares.GetRange(0, k);
var reconsecret = shamir.ReconstructStringSecret(kShares, (byte)16);
//assert
Assert.AreEqual(shares.Count, n);
Assert.AreEqual(secret, reconsecret);
}
public void TestReconstruct_NoChunk()
{
//arrange
var shamir = new SecretSharingCore.Algorithms.Shamir();;
var n = 10;
var k = 3;
var secret = "32456";
//assign
var shares = shamir.DivideSecret(k, n, Encoding.UTF8.GetBytes(secret));
var reconSecret = Encoding.UTF8.GetString(shamir.ReconstructSecret(shares));
//assert
//Assert.AreEqual(k, kPortionOfShares.Count);
//Assert.AreEqual(shares.GetCount(), n);
Assert.AreEqual(secret, reconSecret);
}
public void Test_Shamir_DivideSecretWithChunkSize()
{
SecretSharingCore.Algorithms.Shamir shamir = new SecretSharingCore.Algorithms.Shamir();
var n = 10;
var k = 3;
var secret = "1234567890";
var byteSecret = Encoding.UTF8.GetBytes(secret.ToCharArray());
byte chunkSize = 5;
//double a = 0;
//assign
var shares = shamir.DivideSecret(k, n, byteSecret,chunkSize
#if calcPrimeTime
,ref a
#endif
);
//assert
Assert.AreEqual(shares.Count, n);
}
public void Test_Shamir_FailReconstructSecret()
{
//arrange
var shamir = new SecretSharingCore.Algorithms.Shamir(); ;
var n = 10;
var k = 3;
var secret = 2345;
//assign
var shares = shamir.DivideSecret(k,n,secret);
var kPortionOfShares = shares.GetRange(0, k-1);
var reconSecret = shamir.ReconstructSecret(kPortionOfShares);
////assert
Assert.AreNotEqual(k, kPortionOfShares.Count);
Assert.AreEqual(shares.Count, n);
Assert.AreNotEqual(secret, reconSecret);
}
public void FailReconstructSecretTest()
{
//arrange
var shamir = new SecretSharingCore.Algorithms.Shamir();;
var n = 10;
var k = 3;
var secret = 2345;
//assign
var shares = shamir.DivideSecret(k, n, secret);
var kPortionOfShares = shares.GetRange(0, k - 1);
var reconSecret = shamir.ReconstructSecret(kPortionOfShares);
////assert
Assert.AreNotEqual(k, kPortionOfShares.Count);
Assert.AreEqual(shares.Count, n);
Assert.AreNotEqual(secret, reconSecret);
}
public void TestDivideSecretWithChunkSize()
{
SecretSharingCore.Algorithms.Shamir shamir = new SecretSharingCore.Algorithms.Shamir();
var n = 10;
var k = 3;
var secret = "1234567890";
var byteSecret = Encoding.UTF8.GetBytes(secret.ToCharArray());
byte chunkSize = 5;
double a = 0;
//assign
var shares = shamir.DivideSecret(k, n, byteSecret, chunkSize
#if calcPrimeTime
, ref a
#endif
);
//assert
Assert.AreEqual(shares.Count, n);
}
public void ReconstructSecretWithChunkSizeWrapper(List <IShareCollection> shares, int k, int chunkSize, ref List <long> elapsedTicks, string secret)
{
if (k == 0)
{
k = 1;
}
Stopwatch sw = new Stopwatch();
sw.Start();
SecretSharingCore.Algorithms.Shamir shamir = new SecretSharingCore.Algorithms.Shamir();
//assign
var reconSecret = Encoding.UTF8.GetString(shamir.ReconstructSecret(shares.GetRange(0, k), chunkSize));
sw.Stop();
if (reconSecret != secret)
{
throw new Exception("Not able to recon secret!");
}
elapsedTicks.Add(sw.ElapsedTicks);
}
public void TestInitiateSecretWith_Y_P_Array()
{
SecretSharingCore.Algorithms.Shamir shamir = new SecretSharingCore.Algorithms.Shamir();
var n = 10;
var k = 3;
var secret = 1234;
//assign
var shares = shamir.DivideSecret(k, n, secret);
var initiatedShares = new List <IShareCollection>();
//assert
Assert.AreEqual(shares.Count, n);
int j = 0;
foreach (var col in shares)
{
j++;
IShareCollection collection = new ShareCollection();
for (int i = 0; i < col.GetCount(); i++)
{
Assert.IsNotNull(col.GetShare(i).GetY());
Assert.IsNotNull(col.GetShare(i).GetP());
ShamirShare myshare = new ShamirShare(col.GetShare(i).GetX(), col.GetShare(i).GetY()
, col.GetShare(i).GetP());
Assert.AreEqual(col.GetShare(i).ToString(), myshare.ToString());
collection.SetShare(i, myshare);
}
initiatedShares.Add(collection);
if (j == k)
{
break;
}
}
var reconsecret = shamir.ReconstructSecret(initiatedShares);
Assert.AreEqual(secret, reconsecret);
}
public void TestReconstructSecretWithChunkSize()
{
SecretSharingCore.Algorithms.Shamir shamir = new SecretSharingCore.Algorithms.Shamir();
var n = 10;
var k = 3;
var secret = "1234567890";
var byteSecret = Encoding.UTF8.GetBytes(secret.ToCharArray());
byte chunkSize = 5;
//assign
double a = 0;
var shares = shamir.DivideSecret(k, n, byteSecret, chunkSize
#if calcPrimeTime
, ref a
#endif
);
//if the secret array is not dividable to the chunk we have to truncate null values
var reconSecret = Encoding.UTF8.GetString(shamir.ReconstructSecret(shares, chunkSize).Where(ch => ch != '\0').ToArray());
//assert
Assert.AreEqual(shares.Count, n);
Assert.AreEqual(secret, reconSecret);
}
public void Test_Shamir_ReconstructSecretWithChunkSize()
{
SecretSharingCore.Algorithms.Shamir shamir = new SecretSharingCore.Algorithms.Shamir();
var n = 10;
var k = 3;
var secret = "1234567890";
var byteSecret = Encoding.UTF8.GetBytes(secret.ToCharArray());
byte chunkSize = 5;
//assign
//double a= 0;
var shares = shamir.DivideSecret(k, n, byteSecret, chunkSize
#if calcPrimeTime
,ref a
#endif
);
//if the secret array is not dividable to the chunk we have to truncate null values
var reconSecret = Encoding.UTF8.GetString( shamir.ReconstructSecret(shares, chunkSize).Where(ch=>ch !='\0').ToArray());
//assert
Assert.AreEqual(shares.Count, n);
Assert.AreEqual(secret, reconSecret);
}
public void Test_Shamir_ReconstructStringSecret()
{
SecretSharingCore.Algorithms.Shamir shamir = new SecretSharingCore.Algorithms.Shamir();
var n = 5;
var k = 1;
var secret = "12345678123456781234567812345678";//12345678123456781234567812345678";
//assign
var shares = shamir.DivideStringSecret(k, n, secret, (byte)16);
var kShares = shares.GetRange(0, k);
var reconsecret = shamir.ReconstructStringSecret(kShares, (byte)16);
//assert
Assert.AreEqual(shares.Count, n);
Assert.AreEqual(secret, reconsecret);
}
public void Test_Shamir_ReconstructNoChunk()
{
//arrange
var shamir = new SecretSharingCore.Algorithms.Shamir(); ;
var n = 10;
var k = 3;
var secret = "32456";
//assign
var shares = shamir.DivideSecret(k, n,Encoding.UTF8.GetBytes(secret));
var reconSecret =Encoding.UTF8.GetString( shamir.ReconstructSecret(shares));
//assert
//Assert.AreEqual(k, kPortionOfShares.Count);
//Assert.AreEqual(shares.GetCount(), n);
Assert.AreEqual(secret, reconSecret);
}