BCnEncoder.NET is a library for compressing rgba images to different block-compressed formats. Both ktx and dds output formats are supported. It has no native dependencies and is .NET Standard 2.1 compatible.
Supported formats are:
Raw unsigned byte R, RG, RGB and RGBA formats
SimpleEncryption.NET is a simple C# API that allow you to Encrypt and Decrypt Files, Byte Array and String. It provide you many chiffer, some verry quick and some verry strong. From Ceasar to AES, it allow you to save some IV Key for encrypting one side and decrypting an other side.