public void OffChainDecryptMessageTest()
{
var message = Hash.Generate().ToHex();
var secrets = SecretSharingHelper.EncodeSecret(message, MinimumCount, MinersCount);
var encryptedValues = new Dictionary <string, byte[]>();
var decryptedValues = new Dictionary <string, byte[]>();
var ownerKeyPair = InitialMinersKeyPairs[0];
var othersKeyPairs = InitialMinersKeyPairs.Skip(1).ToList();
var decryptResult = "";
var initial = 0;
foreach (var keyPair in othersKeyPairs)
{
var encryptedMessage = CryptoHelpers.EncryptMessage(ownerKeyPair.PrivateKey, keyPair.PublicKey,
Encoding.UTF8.GetBytes(secrets[initial++]));
encryptedValues.Add(keyPair.PublicKey.ToHex(), encryptedMessage);
}
// Check encrypted values.
encryptedValues.Count.ShouldBe(MinersCount - 1);
// Others try to recover.
foreach (var keyPair in othersKeyPairs)
{
var cipherMessage = encryptedValues[keyPair.PublicKey.ToHex()];
var decryptMessage =
CryptoHelpers.DecryptMessage(ownerKeyPair.PublicKey, keyPair.PrivateKey, cipherMessage);
decryptedValues.Add(keyPair.PublicKey.ToHex(), decryptMessage);
if (decryptedValues.Count >= MinimumCount)
{
decryptResult = SecretSharingHelper.DecodeSecret(
decryptedValues.Values.Select(v => Encoding.UTF8.GetString(v)).ToList(),
Enumerable.Range(1, MinimumCount).ToList(), MinimumCount);
break;
}
}
decryptResult.ShouldBe(message);
}
