/// <summary>
/// Deserializes the identifier into an byte array.
/// </summary>
/// <returns></returns>
public byte[] ToBinary()
{
PacketBuffer buf = PacketBuffer.CreateDynamic();
ToBinary(buf);
return(buf.ToArray());
}
public void TestDynamicReadBoundry()
{
using (PacketBuffer buffer = PacketBuffer.CreateDynamic(new byte[16]))
{
TestReadBoundry(buffer);
}
}
/// <summary>
/// Returns the binary expression of this <see cref="FileMeta"/> without any encryption, hmacs, ivs, etc.
/// </summary>
/// <param name="version"></param>
/// <returns></returns>
public byte[] GetPlainData(ushort version)
{
using (PacketBuffer buf = PacketBuffer.CreateDynamic())
{
if (version == 1)
{
Write_v1_1(buf);
}
else
{
Write_v1_2_Header(buf);
Write_v1_2_Core(buf);
}
return(buf.ToArray());
}
}
public void TestAesHmac()
{
byte[] hmac = AesStatic.GenerateKey();
byte[] key = AesStatic.GenerateKey();
byte[] iv = AesStatic.GenerateIV();
Random random = new Random();
byte[] plaintext = new byte[69854];
random.NextBytes(plaintext);
PacketBuffer ciphertext = PacketBuffer.CreateDynamic();
AesStatic.EncryptWithHmac(plaintext, ciphertext, false, hmac, key);
ciphertext.Position = 0;
byte[] result = AesStatic.DecryptWithHmac(ciphertext, -1, hmac, key);
CollectionAssert.AreEqual(plaintext, result);
}
/// <summary>
/// Returns the binary expression of this <see cref="FileMeta"/> like it will be sent over the internet.
/// </summary>
/// <param name="version"></param>
/// <returns></returns>
public byte[] GetBinaryData(ushort version)
{
using (PacketBuffer buf = PacketBuffer.CreateDynamic())
{
if (version == 1)
{
Write_v1_1(buf);
}
else
{
if (Algorithm == ContentAlgorithm.None)
{
Write_v1_2_Header(buf);
Write_v1_2_Core(buf);
}
else if (Algorithm == ContentAlgorithm.Aes256CbcHmacSha256)
{
Write_v1_2_Header(buf); // write header anyway because we always these data
if (Available)
{
using (PacketBuffer ibuf = PacketBuffer.CreateDynamic())
{
Write_v1_2_Core(ibuf);
AesStatic.EncryptWithHmac(ibuf.ToArray(), buf, false, HmacKey, AesKey);
}
}
else
{
buf.WriteByteArray(encryptedContent, false); // write all pre-read encrypted content including hmac, iv, etc.
}
}
}
return(buf.ToArray());
}
}