nanoFramework.System.Security.Cryptography 1.0.3

Welcome to the .NET nanoFramework System.Security.Cryptography Library repository

This repository contains the nanoFramework System.Security.Cryptography class library.

Build status

Component	Build Status	NuGet Package
System.Security.Cryptography

System.Security.Cryptography usage

This library brings to .NET nanoFramework C# applications the equivalent implementations provided by Mbed TLS. The target there the code is going to be deployed has to have a firmware image built with this namespace enabled.

HMAC SHA256

This class computes a Hash-based Message Authentication Code (HMAC) by using the SHA256 hash function.

A typical usage for this, in IoT context, is to compute an hashed signature to connect to Azure IoT Hub. Like

Providing one has the _S_hared _A_ccess _K_ey and wants to encode a certain Uri the code snippet that does this is as simple has this:

var hmacsha256 = new HMACSHA256(Convert.FromBase64String(sharedAccessKey));

byte[] hash = hmacsha256.ComputeHash(Encoding.UTF8.GetBytes(encodedUri + "\n" + expiry));

string sig = Convert.ToBase64String(hash);

Feedback and documentation

For documentation, providing feedback, issues and finding out how to contribute please refer to the Home repo.

Join our Discord community here.

Credits

The list of contributors to this project can be found at CONTRIBUTORS.

License

The nanoFramework Class Libraries are licensed under the MIT license.

Code of Conduct

This project has adopted the code of conduct defined by the Contributor Covenant to clarify expected behaviour in our community. For more information see the .NET Foundation Code of Conduct.

.NET Foundation

This project is supported by the .NET Foundation.