https://github.com/rweather/arduinolibs

Arduino Cryptography Library
https://github.com/rweather/arduinolibs

Last synced: about 2 months ago
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Arduino Cryptography Library

• Host: GitHub
• URL: https://github.com/rweather/arduinolibs
• Owner: rweather
• Created: 2012-05-25T05:06:43.000Z (over 12 years ago)
• Default Branch: master
• Last Pushed: 2024-05-26T17:08:56.000Z (8 months ago)
• Last Synced: 2024-08-04T04:02:59.995Z (5 months ago)
• Language: C++
• Homepage:
• Size: 22.8 MB
• Stars: 433
• Watchers: 25
• Forks: 211
• Open Issues: 32
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

• awesome-embedded-software - arduinolibs - Arduino Cryptography Library. (Cryptography / General)

README

        

Arduino Cryptography Library

============================

This distribution contains a libraries and example applications to perform

cryptography operations on Arduino devices.  They are distributed under the

terms of the MIT license.

The [documentation](http://rweather.github.io/arduinolibs/crypto.html)

contains more information on the libraries and examples.

This repository used to contain a number of other examples and libraries

for other areas of Arduino functionality but most users are only interested

in the cryptography code.  The other projects have been moved to a

separate [repository](https://github.com/rweather/arduino-projects) and

only the cryptography code remains in this repository.

For more information on these libraries, to report bugs, or to suggest

improvements, please contact the author Rhys Weatherley via

[email](mailto:[email protected]).

Recent significant changes to the library

-----------------------------------------

Apr 2023:

Brad Bock contributed a RNG back end for newer AVR chips that uses

Custom Configurable Logic (CCL) to generate an unstable clock source

instead of using the CPU watchdog as on older AVR chips.

Feb 2023:

NIST has selected ASCON as the winner of the Lightweight Cryptography

Competition.  This repository has an older implementation of ASCON-128

which should be compatible with the final winning version.  Let me know

if you have any issues.

The winning version has additional AEAD cipher and hashing modes that

this repository does not implement yet.  However, my companion repository

[ASCON Suite](https://github.com/rweather/ascon-suite) does implement

all of the additional modes.

NIST is in the process of finalising the standard.  Once the standard is

published, I will move Ascon128 from CryptoLW to Crypto and implement the

extra modes in this repository.  In the meantime, please use ASCON Suite if

you need support for ASCON in your Arduino project.

Mar 2022:

* HMAC-BLAKE2b and HMAC-BLAKE2s were giving incorrect results when the

message being authenticated was zero-length.

Jan 2022:

* All-in-one hmac() function in Hash.h for simplified HMAC computations.

* New API for the HKDF hash-based key derivation function.

* Make the ESP32 version of AES less dependent on include file locations.

Apr 2018:

* Acorn128 and Ascon128 authenticated ciphers (finalists in the CAESAR AEAD

  competition in the light-weight category).

* Split the library into Crypto (core), CryptoLW (light-weight), and

  CryptoLegacy (deprecated algorithms).

* Tiny and small versions of AES for reducing memory requirements.

* Port the library to ESP8266 and ESP32.

* Make the RNG class more robust if the app doesn't call begin() or loop().

Nov 2017:

* Fix the AVR assembly version of Speck and speed it up a little.

* API improvements to the RNG class.