/// <summary>
/// Serializes a SerializedBiscuit to a byte array
/// </summary>
/// <returns></returns>
public Either <Error, byte[]> Serialize()
{
Format.Schema.Biscuit biscuit = new Format.Schema.Biscuit()
{
Signature = signature.Serialize()
};
for (int i = 0; i < keys.Count; i++)
{
biscuit.Keys.Add(ByteString.CopyFrom(keys[i].Compress().ToByteArray()));
}
biscuit.Authority = ByteString.CopyFrom(authority);
for (int i = 0; i < blocks.Count; i++)
{
biscuit.Blocks.Add(ByteString.CopyFrom(blocks[i]));
}
try
{
using MemoryStream stream = new MemoryStream();
biscuit.WriteTo(stream);
byte[] data = stream.ToArray();
return(data);
}
catch (IOException e)
{
return(new SerializationError(e.ToString()));
}
}
/// <summary>
/// Deserializes a SerializedBiscuit from a byte array
/// </summary>
/// <param name="slice"></param>
/// <returns></returns>
static public Either <Error, SerializedBiscuit> FromBytes(byte[] slice)
{
try
{
Format.Schema.Biscuit data = Format.Schema.Biscuit.Parser.ParseFrom(slice);
List <RistrettoElement> keys = data.Keys
.Select(key => new CompressedRistretto(key.ToByteArray()).Decompress())
.ToList();
byte[] authority = data.Authority.ToByteArray();
List <byte[]> blocks = data.Blocks.Select(block => block.ToByteArray()).ToList();
Either <Error, TokenSignature> signatureRes = TokenSignature.Deserialize(data.Signature);
if (signatureRes.IsLeft)
{
return(signatureRes.Left);
}
TokenSignature signature = signatureRes.Right;
SerializedBiscuit biscuitResult = new SerializedBiscuit(authority, blocks, keys, signature);
Either <Error, Void> res = biscuitResult.Verify();
if (res.IsLeft)
{
return(res.Left);
}
else
{
return(biscuitResult);
}
}
catch (InvalidProtocolBufferException e)
{
return(new DeserializationError(e.ToString()));
}
catch (InvalidEncodingException e)
{
return(new DeserializationError(e.ToString()));
}
}