CyoEncode

Latest stable version :

Provides classes for encoding binary data into a printable representation using Base64, Base32, Base16 (hex), or Base85/Ascii85 character sets, plus equivalent functions for the decoding of such encoded data back into its binary form.

Features:

• Targets .NET Standard 2.1;
• Works with .NET Core 3.1 and .NET 5 or above;
• Available as a NuGet package.

Supported encoders

• Base85/Ascii85
• Base64
• Base32
• Base16/Hexadecimal

Usage

CyoEncode is simple to use:

Encoding takes an array of bytes, and outputs an encoded string:

var encoder = new CyoEncode.Base85();

byte[] bytes = ...
string encoded = encoder.Encode(bytes);

To use another encoder, simply instantiate the relevant class; for example:

var encoder = new CyoEncode.Base32();

Decoding takes the encoded string, and outputs an array of decoded bytes:

var decoder = new CyoEncode.Base85();

string encoded = ...;
byte[] decoded = decoder.Decode(encoded);

Streams

CyoEncode can asynchronously encode and decode streams:

var encoder = new CyoEncode.Base64();

byte[] bytes = ...
using var input = new MemoryStream(bytes);

using var output = new MemoryStream();

await encoder.EncodeStreamAsync(input, output);

string encoded = Encoding.ASCII.GetString(output.ToArray());

Decode:

var decoder = new CyoEncode.Base64();

string encoded = ...
using var input = new MemoryStream(Encoding.ASCII.GetBytes(encoded));

using var output = new MemoryStream();

await decoder.DecodeStreamAsync(input, output);

byte[] decoded = output.ToArray();

Even files can be encoded:

using var input = new FileStream("...", FileMode.Open);

using var output = new FileStream("...", FileMode.Create);

await encoder.EncodeStreamAsync(input, output);

and decoded:

using var input = new FileStream("...", FileMode.Open);

using var output = new FileStream("...", FileMode.Create);

await encoder.DecodeStreamAsync(input, output);

Of course, assume the source file cannot be trusted! Ensure its size is reasonable before decoding.

License

The MIT License (MIT)

Copyright (c) 2017-2024 Graham Bull

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.