Tiny AES128 in C
mbedTLS
| Tiny AES128 in C | mbedTLS | |
|---|---|---|
| 4 | 9 | |
| 4,222 | 5,248 | |
| - | 1.4% | |
| 0.0 | 10.0 | |
| 4 months ago | 6 days ago | |
| C | C | |
| The Unlicense | GNU General Public License v3.0 or later |
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Tiny AES128 in C
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data encryption for embedded systems
Tiny AES library: https://github.com/kokke/tiny-AES-c
- Any AES-128 library supporting Arduino M0 pro?
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Casting 2D array onto 1D array
On a side note in case anyone was curious I came across that code reading through someone's AES in C implementation on github found here: https://github.com/kokke/tiny-AES-c
- AES in ~500 Lines of C
mbedTLS
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OpenWrt 23.05
It's work in progress: https://github.com/Mbed-TLS/mbedtls/blob/development/docs/ar...
Newer version have okay-ish support, I'd guess the next OpenWRT release will have it again.
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How can I disable the close_notify message?
It's related to this Mbed-TLS issue
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DIY Physical Backed Tokens (EIP-5791) with ESP32 and BLE
i've used the entropy generator from MbedTLS which uses multiple sources of randomness, and seeding it additionally with the chip's mac address and the free heap size at time of creation. it would take a lot to recreate all that "noise" consistently, but i'm open to suggestions on how to make it more secure
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Help libraries won’t work on the IDE for esp32
However on the github page and assuming I found the right source - and this is a HUGE ASSUMPTION - there is a section on porting the library to other platforms.
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redbean: a single-file actually portable web server with Lua, HTTPS and SQLite
Rebean is a single executable written in ANSI C that embeds Lua 5.4, MbedTLS and SQLite. The crazy thing about this is that it is a C binary that runs on six operating systems without any cross compiling thanks to leveraging Justine Tunney's cosmopolitan.
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Install mbedTLS on Linux
it looks like the commands are all built under https://github.com/Mbed-TLS/mbedtls/tree/development/programs and the arch mbedtls package does some extra work to rename them and copy them into /usr/local/bin: https://github.com/archlinux/svntogit-community/blob/packages/mbedtls/trunk/PKGBUILD#L55
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Elliptic Curve Cryptography Explained
If you want to see a real implemention of arbitrary sized integer math, mbedTLS is a great example:
https://github.com/ARMmbed/mbedtls/blob/development/library/...
All of the ECC code in that library relies on this code, which can be accelerated by dedicated hardware.
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C Deep
mbed TLS - Another crypto implementation. Apache-2.0
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WireGuard implementation for LwIP stack
Definitely, FreeRTOS + LwIP + Mbed TLS is a fairly common combo these days, and Mbed TLS has hardware acceleration where possible.
What are some alternatives?
OpenSSL - TLS/SSL and crypto library
libsodium - A modern, portable, easy to use crypto library.
wolfssl - The wolfSSL library is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. wolfSSL supports up to TLS 1.3 and DTLS 1.3!
Bcrypt - Modern(-ish) password hashing for your software and your servers
Crypto++ - free C++ class library of cryptographic schemes
GnuTLS - GnuTLS
Botan - Cryptography Toolkit
LibTomCrypt - LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo-random number generators, public key cryptography and a plethora of other routines.
libhydrogen - A lightweight, secure, easy-to-use crypto library suitable for constrained environments.
LibreSSL - LibreSSL Portable itself. This includes the build scaffold and compatibility layer that builds portable LibreSSL from the OpenBSD source code. Pull requests or patches sent to [email protected] are welcome.