From 2162178cb7e209e9f060748842e1c4782a2ab852 Mon Sep 17 00:00:00 2001 From: vnugent Date: Sat, 17 Aug 2024 21:33:23 -0400 Subject: refactor: cipher utils update and simplify --- .../src/Nip04Util.cs | 50 ---------------------- 1 file changed, 50 deletions(-) delete mode 100644 wrappers/dotnet/VNLib.Utils.Cryptography.Noscrypt/src/Nip04Util.cs (limited to 'wrappers/dotnet/VNLib.Utils.Cryptography.Noscrypt/src/Nip04Util.cs') diff --git a/wrappers/dotnet/VNLib.Utils.Cryptography.Noscrypt/src/Nip04Util.cs b/wrappers/dotnet/VNLib.Utils.Cryptography.Noscrypt/src/Nip04Util.cs deleted file mode 100644 index c1906f0..0000000 --- a/wrappers/dotnet/VNLib.Utils.Cryptography.Noscrypt/src/Nip04Util.cs +++ /dev/null @@ -1,50 +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 . - -using System; -using System.Buffers.Text; - -using VNLib.Utils.Extensions; - -namespace VNLib.Utils.Cryptography.Noscrypt -{ - public static class Nip04Util - { - public static bool IsValidPayload(ReadOnlySpan payload) - { - /* Iv is base64 encoded so it should be 33% larger than 16 byte iv */ - ReadOnlySpan iv = payload.SliceAfterParam("?iv="); - return iv.Length > 20 && iv.Length <= 26; - } - - public static ReadOnlySpan GetIV(ReadOnlySpan payload) => payload.SliceAfterParam("?iv="); - - public static ReadOnlySpan GetCipherText(ReadOnlySpan payload) => payload.SliceBeforeParam("?iv="); - - public static int CalcBufferSize(int dataSize) - { - throw new NotImplementedException(); - } - - static readonly int MaxEncodedIvLength = Base64.GetMaxEncodedToUtf8Length(16); - - public static int CalcMessageBufferSize(int dataSize) - { - int bufSize = CalcBufferSize(dataSize); - return bufSize + "?iv=".Length + MaxEncodedIvLength; - } - } - -} -- cgit