STM32-Bootloader
BLAKE3
STM32-Bootloader | BLAKE3 | |
---|---|---|
2 | 36 | |
224 | 4,585 | |
- | 1.1% | |
0.0 | 7.9 | |
almost 3 years ago | 9 days ago | |
C | Assembly | |
Apache License 2.0 | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
STM32-Bootloader
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Easiest way to firmware update
Hi all! So I'm looking for the easiest and fastest way to create a firmware update desktop app for an STM32 device (Arm Cortex M7). I would like to have something like CubeProgrammer, but way less functionalities (just programming/flashing). Being a commerciall product for non-programmers CubeProgrammer is not fine. I want something proprietary with my GUI. So, .... the strategy I found online is to create a custom bootloader (like this: https://github.com/viktorvano/STM32-Bootloader) and control it with a Java app with serial communication libraries. But why do you NEED a custom bootlader? Can't I just flash to the flash memory (from 0x8000000) and let the default bootloader take care of things? Easier and less flash memory usage. Security is not the priority. Ease and fast implementation is the priority.
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When you only know how to write brute force algorithms.
You're writing the first stage of a bootloader for a chip your company makes, and your SDK will provide the users with this code. EG this file from ST's CubeMX picked out of the first project containing it I found on GitHub.
BLAKE3
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Reasons to Prefer Blake3 over Sha256
> might be easier with a public domain license instead of the current ones
There reference implementation is public domain (CC0) or at your choice Apache 2.0
https://github.com/BLAKE3-team/BLAKE3/blob/master/LICENSE
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Google abandons work to move Assistant smart speakers to Fuchsia
Fyi, blake3 was released in 2019 and should probably be used over blake2 unless you have some strong reason not to. It's basically a reimplementation of blake2 with performance tweaks.
https://github.com/BLAKE3-team/BLAKE3
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Six times faster than C
Many people will argue that today's compilers are so smart/optimized that you'd be a fool to try to outsmart the compiler with asm. I'm not 1 of them, but I know some. IMO it's all a bunch of bullshit, there's a goddamn reason all the cryptocurrency mining CPU/GPU code is all hand-written asm. there's a reason blake3 is written in asm ( https://github.com/BLAKE3-team/BLAKE3/blob/master/c/blake3_sse41_x86-64_windows_msvc.asm ) - but the thing is, 99.99% of the time, life is too short to outsmart the compiler (unless you're Alexander Yee)
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[QUESTION] Low speeds when creating blake3 checksum?
I have been trying to optimize my code to create a fast hashing function to create and check b3 file integrity but b3sum is way way faster than my aproach, i have been trying to modify my code acordingly to https://github.com/BLAKE3-team/BLAKE3/blob/master/b3sum/src/main.rs with no luck, so if anyone can give me some tips/clues on how to achieve better speeds it would be incredible. Thx!!
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A good hash function for DEFLATE?
BLAKE3 might be faster than KangarooTwelve and is also an XOF. It doesn't have the benefit of getting a working RFC draft proposal however.
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PoxHash, a bespoke denovo hashing algorithm implemented dep-free in Rust and 5 other languages. Rust compiled with rustc with -O is faster than GCC-compiled C with -O3!
You're saying the hash speed is 133 kB/s? That's extremely slow, for example BLAKE3 achieves 6.8 GB/s which is over 50000 times faster. Nobody wants to use such a slow hash function.
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What's everyone working on this week (4/2023)?
Try this one if you want a smaller, and particularly interesting crate: https://github.com/BLAKE3-team/BLAKE3
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New Ryzens and Chia plotters
blake3 is a cryptographic hashing function, which is used during plotting's "forward propagation" step
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Image displays its own MD5 hash
BLAKE3 claims to be faster and more secure than both MD5 and SHA1.
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Good hasher for 256-byte keys?
More information: https://github.com/BLAKE3-team/BLAKE3
What are some alternatives?
libsodium - A modern, portable, easy to use crypto library.
xxHash - Extremely fast non-cryptographic hash algorithm
Hashids.java - Hashids algorithm v1.0.0 implementation in Java
highwayhash - Fast strong hash functions: SipHash/HighwayHash
meow_hash - Official version of the Meow hash, an extremely fast level 1 hash
smhasher - Hash function quality and speed tests
blake3 - An AVX-512 accelerated implementation of the BLAKE3 cryptographic hash function
BLAKE3-specs - The BLAKE3 paper: specifications, analysis, and design rationale
chia-plotter
umash - UMASH: a fast enough hash and fingerprint with collision bounds
min-sized-rust - 🦀 How to minimize Rust binary size 📦