push latest c-sharp changes

1 files changed, 0 insertions, 234 deletions

diff --git a/wrappers/dotnet/VNLib.Utils.Cryptography.Noscrypt/src/NostrEncryptedMessage.cs b/wrappers/dotnet/VNLib.Utils.Cryptography.Noscrypt/src/NostrEncryptedMessage.cs
deleted file mode 100644
index c70839c..0000000
--- a/wrappers/dotnet/VNLib.Utils.Cryptography.Noscrypt/src/NostrEncryptedMessage.cs
+++ /dev/null
@@ -1,234 +0,0 @@
-// Copyright (C) 2024 Vaughn Nugent
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Affero General Public License as
-// published by the Free Software Foundation, either version 3 of the
-// License, or (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU Affero General Public License for more details.
-//
-// You should have received a copy of the GNU Affero General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-using System;
-using System.Diagnostics;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-
-using VNLib.Utils.Extensions;
-using VNLib.Utils.Memory;
-
-using static VNLib.Utils.Cryptography.Noscrypt.LibNoscrypt;
-
-namespace VNLib.Utils.Cryptography.Noscrypt
-{
-
-    public sealed class NostrEncryptedMessage(IEncryptionVersion version, INostrCrypto lib) : VnDisposeable
-    {
-        private readonly INostrCrypto library = lib;
-
-        private NCSecretKey _fromKey;
-        private NCPublicKey _toKey;       
-        private Buffer32 _nonce32;
-
-        /// <summary>
-        /// The message encryption version used by this instance
-        /// </summary>
-        public uint Version { get; } = version.Version;
-
-        /// <summary>
-        /// The message nonce created during encryption event
-        /// </summary>
-        public unsafe Span<byte> Nonce
-        {
-            get
-            {
-                Debug.Assert(NC_ENCRYPTION_NONCE_SIZE == sizeof(Buffer32));
-                return MemoryMarshal.CreateSpan(ref GetNonceRef(), sizeof(Buffer32));
-            }
-        }
-
-        /// <summary>
-        /// Gets the size of the buffer required to encrypt the specified data size
-        /// </summary>
-        /// <param name="dataSize">The size of the message raw plaintext message to send</param>
-        /// <returns>The minimum number of bytes required for message encryption output</returns>
-        /// <exception cref="NotSupportedException"></exception>
-        public int GetOutputBufferSize(int dataSize) 
-            => version.CalcBufferSize(dataSize);
-
-        /// <summary>
-        /// Sets the encryption secret key for the message
-        /// </summary>
-        /// <param name="secKey">The secret key buffer</param>
-        /// <returns>The current instance for chaining</returns>
-        /// <exception cref="ArgumentException"></exception>
-        public NostrEncryptedMessage SetSecretKey(ReadOnlySpan<byte> secKey) 
-            => SetSecretKey(in NCUtil.AsSecretKey(secKey));
-
-        /// <summary>
-        /// Sets the encryption secret key for the message
-        /// </summary>
-        /// <param name="secKey">The secret key structure to copy</param>
-        /// <returns>The current instance for chaining</returns>
-        /// <exception cref="ArgumentException"></exception>
-        public NostrEncryptedMessage SetSecretKey(ref readonly NCSecretKey secKey)
-        {
-            MemoryUtil.CloneStruct(in secKey, ref _fromKey);
-            return this;
-        }
-
-        /// <summary>
-        /// Assigns the public key used to encrypt the message as the 
-        /// receiver of the message
-        /// </summary>
-        /// <param name="pubKey">The user's public key receiving the message</param>
-        /// <returns>The current instance for chaining</returns>
-        /// <exception cref="ArgumentException"></exception>
-        public NostrEncryptedMessage SetPublicKey(ReadOnlySpan<byte> pubKey) 
-            => SetPublicKey(in NCUtil.AsPublicKey(pubKey));
-
-        /// <summary>
-        /// Assigns the public key used to encrypt the message as the 
-        /// receiver of the message
-        /// </summary>
-        /// <param name="pubKey">The user's public key receiving the message</param>
-        /// <returns>The current instance for chaining</returns>
-        /// <exception cref="ArgumentException"></exception>
-        public NostrEncryptedMessage SetPublicKey(ref readonly NCPublicKey pubKey)
-        {
-            MemoryUtil.CloneStruct(in pubKey, ref _toKey);
-            return this;
-        }
-
-        /// <summary>
-        /// Assigns the nonce to the message. Must be <see cref="NC_ENCRYPTION_NONCE_SIZE"/>
-        /// in length
-        /// </summary>
-        /// <param name="nonce">The nonce value to copy</param>
-        /// <returns>The current instance for chaining</returns>
-        /// <exception cref="ArgumentException"></exception>
-        public NostrEncryptedMessage SetNonce(ReadOnlySpan<byte> nonce)
-        {
-            MemoryUtil.CopyStruct(nonce, ref _nonce32);
-            return this;
-        }
-
-        /// <summary>
-        /// Assigns a random nonce using the specified random source
-        /// </summary>
-        /// <param name="rng">The random source to genrate a random nonce from</param>
-        /// <returns>The current instance for chaining</returns>
-        public NostrEncryptedMessage SetRandomNonce(IRandomSource rng)
-        {
-            rng.GetRandomBytes(Nonce);
-            return this;
-        }
-
-        /// <summary>
-        /// Encrypts the plaintext message and writes the encrypted message to the
-        /// specified buffer, along with a 32 byte mac of the message
-        /// </summary>
-        /// <param name="plaintext">The plaintext data to encrypt</param>
-        /// <param name="message">The message output buffer to write encrypted data to</param>
-        /// <param name="macOut32">A buffer to write the computed message mac to</param>
-        /// <returns>The number of bytes writtn to the message output buffer</returns>
-        /// <remarks>
-        /// The message buffer must be at-least the size of the output buffer, and it is not 
-        /// initialized before the encryption operation.
-        /// </remarks>
-        /// <exception cref="ArgumentOutOfRangeException"></exception>
-        public int EncryptMessage(ReadOnlySpan<byte> plaintext, Span<byte> message, Span<byte> macOut32)
-        {
-            return Version switch
-            {
-                NC_ENC_VERSION_NIP44 => EncryptNip44(plaintext, message, macOut32),
-                _ => throw new NotSupportedException("NIP04 encryption is not supported"),
-            };
-        }
-
-        private int EncryptNip44(ReadOnlySpan<byte> plaintext, Span<byte> message, Span<byte> macOut32)
-        {
-            int payloadSize = GetOutputBufferSize(plaintext.Length);
-
-            ArgumentOutOfRangeException.ThrowIfZero(plaintext.Length, nameof(plaintext));
-            ArgumentOutOfRangeException.ThrowIfZero(message.Length, nameof(message));
-            ArgumentOutOfRangeException.ThrowIfLessThan(message.Length, payloadSize, nameof(message));
-            ArgumentOutOfRangeException.ThrowIfLessThan(macOut32.Length, NC_ENCRYPTION_MAC_SIZE, nameof(macOut32));
-
-            /*
-             * Alloc temp buffer to copy formatted payload to data to for the encryption
-             * operation. Encryption will write directly to the message buffer
-             */
-
-            using UnsafeMemoryHandle<byte> ptPayloadBuf = MemoryUtil.UnsafeAllocNearestPage<byte>(payloadSize, true);
-            using UnsafeMemoryHandle<byte> hmacKeyBuf = MemoryUtil.UnsafeAlloc<byte>(NC_HMAC_KEY_SIZE, true);
-            Debug.Assert(hmacKeyBuf.Length == NC_HMAC_KEY_SIZE);
-
-            Nip44Util.FormatBuffer(plaintext, ptPayloadBuf.Span, false);
-
-            library.EncryptNip44(
-                in _fromKey,
-                in _toKey,
-                in GetNonceRef(),
-                in ptPayloadBuf.GetReference(),
-                ref MemoryMarshal.GetReference(message),
-                (uint)payloadSize,                  //IMPORTANT: Format buffer will pad the buffer to the exact size
-                ref hmacKeyBuf.GetReference()       //Must set the hmac key buffer
-            );
-
-            //Safe to clear the plain text copy buffer
-            MemoryUtil.InitializeBlock(
-                ref ptPayloadBuf.GetReference(),
-                ptPayloadBuf.GetIntLength()
-            );
-
-
-            //Compute message mac, key should be set by the encryption operation
-            library.ComputeMac(
-                in hmacKeyBuf.GetReference(),
-                in MemoryMarshal.GetReference(message),
-                (uint)payloadSize,  //Again set exact playload size
-                ref MemoryMarshal.GetReference(macOut32)
-            );
-
-            //Safe to clear the hmac key buffer
-            MemoryUtil.InitializeBlock(
-                ref hmacKeyBuf.GetReference(),
-                hmacKeyBuf.GetIntLength()
-            );
-
-            return payloadSize;
-        }
-
-        private ref byte GetNonceRef() => ref Unsafe.As<Buffer32, byte>(ref _nonce32);      
-
-        protected override void Free()
-        {
-            //Zero all internal memory
-            MemoryUtil.ZeroStruct(ref _fromKey);
-            MemoryUtil.ZeroStruct(ref _toKey);
-            MemoryUtil.ZeroStruct(ref _nonce32);
-        }
-
-        /// <summary>
-        /// Initializes a new <see cref="NostrEncryptedMessage"/> with the nip44 encryption
-        /// method.
-        /// </summary>
-        /// <param name="lib">The nostr crypto implementation instance to use</param>
-        /// <returns>The intialzied message instance</returns>
-        public static NostrEncryptedMessage CreateNip44Cipher(INostrCrypto lib) 
-            => new(NCNip44EncryptionVersion.Instance, lib);
-       
-
-        [StructLayout(LayoutKind.Sequential, Size = 32)]
-        unsafe struct Buffer32
-        {
-            fixed byte value[32];
-        }
-    }
-
-}