public void encryptDecryptTo(int n)
{
var msg = PrivateBox.RandomBytes(1024);
var keys = new System.Collections.Generic.List <KeyPair>();
for (int i = 0; i < keys.Count; i++)
{
keys[i] = PublicKeyBox.GenerateKeyPair();
}
var ctxt = PrivateBox.Multibox(msg, keys.Select(x => x.PublicKey).ToArray(), n);
// a recipient key may open the message.
foreach (var key in keys)
{
Assert.AreEqual(PrivateBox.MultiboxOpen(ctxt, key.PrivateKey, n), msg);
}
}
public void TestErrorsWhenMaxIsMoreThan255OrLessThan1()
{
var msg = "hello there!";
var ctxt = PrivateBox.Multibox(msg, new byte[][] { alice.PublicKey, bob.PublicKey });
var pk = alice.PublicKey;
var sk = alice.PrivateKey;
Assert.Catch(new TestDelegate(delegate
{
PrivateBox.Multibox(msg, new byte[][] { pk, pk, pk, pk }, -1);
}));
Assert.Catch(new TestDelegate(delegate
{
PrivateBox.MultiboxOpen(ctxt, sk, 256);
}));
Assert.Pass();
}
public static Newtonsoft.Json.Linq.JObject Unbox(string boxed, byte[] privateKey)
{
if (privateKey == null)
{
return(null);
}
var _boxed = Utilities.ToByteArray(boxed);
var sk = Sodium.PublicKeyAuth.ConvertEd25519SecretKeyToCurve25519SecretKey(privateKey);
try
{
var msg = PrivateBox.MultiboxOpen(_boxed, sk);
return(JsonConvert.DeserializeObject <Newtonsoft.Json.Linq.JObject>(Encoding.UTF8.GetString(msg)));
}
catch
{
return(null);
}
}