public void CipherTest()
{
Random rnd = new Random();
byte[] message = new byte[511];
rnd.NextBytes(message);
BFCText encypted = BFCipher.encrypt(pKey, message, rnd);
byte[] result = BFCipher.decrypt(encypted, key);
Assert.AreEqual(Encoding.UTF8.GetString(message, 0, message.Length), Encoding.UTF8.GetString(result, 0, message.Length));
}
public async Task <byte[]> DecipherMessage(string ct, SerializedPrivateKey sKey)
{
var decipherTask = Task <byte[]> .Factory.StartNew(() =>
{
BFUserPrivateKey key = new BFUserPrivateKey(sKey);
SerializedBFCText ciphered = (SerializedBFCText)JsonConvert.DeserializeObject(HttpUtility.UrlDecode(ct), typeof(SerializedBFCText));
BFCText cText = new BFCText(ciphered);
return(BFCipher.decrypt(cText, key));
});
await decipherTask;
return((byte[])decipherTask.Result);
}
public async Task <string> CipherMessage(byte[] message, string identity, SerializedPrivateKey sKey)
{
var cipherTask = Task <BFCText> .Factory.StartNew(() =>
{
BFUserPrivateKey key = new BFUserPrivateKey(sKey);
BFUserPublicKey pKey = new BFUserPublicKey(identity, key.Param);
return(BFCipher.encrypt(pKey, message, new Random()));
});
await cipherTask;
BFCText cipher = (BFCText)cipherTask.Result;
return(HttpUtility.UrlEncode(JsonConvert.SerializeObject(cipher.Serialize())));
}
public async Task <string> DecipherText(string ct, SerializedPrivateKey sKey)
{
var decipherTask = Task <byte[]> .Factory.StartNew(() =>
{
BFUserPrivateKey key = new BFUserPrivateKey(sKey);
SerializedBFCText ciphered = (SerializedBFCText)JsonConvert.DeserializeObject(ct, typeof(SerializedBFCText));
BFCText cText = new BFCText(ciphered);
return(BFCipher.decrypt(cText, key));
});
await decipherTask;
byte[] bMessage = (byte[])decipherTask.Result;
return(Encoding.UTF8.GetString(bMessage, 0, bMessage.Length));
}
