ZedmeeHash
PoxHash
ZedmeeHash | PoxHash | |
---|---|---|
1 | 12 | |
1 | 7 | |
- | - | |
3.4 | 7.6 | |
about 1 year ago | about 1 year ago | |
C | C | |
The Unlicense | MIT License |
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ZedmeeHash
PoxHash
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How do crypto functions deal with the issue of character size? (e.g. Unicode)
Hey guys. If you remember me from several months ago, with this object de art, I am here with a less cringy question than that of 'I made a hash function!!!111'. I apologize if this question is basic btw. My question is, how do crypto functions, of any kind, deal with character size? For example in C, wchar_t is either 2 or 4 bytes. So, if the implementation goes through the stream like stream++ it will be stepping word-wise not byte-wise. And then if another machine, using a different implementation, reads the stream byte-wise and not word-wise, then it won't get the same message right?
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shibajs1.h: Quick and Dirty JSON Parsing (not an advertisement!) --- Seeking comments, good ones. Thanks
I am happy with my progress and I am not hasty at all. If you go to my Github you will see that my previous project was in every way inferior. At least I can wrap my head around most basic things now.
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Encoding Huffman freq table?
The whole process is not optimal anyways. But I guess I will just have to pay my due diligence in this field until I can do something worthwhile. Keep in mind that I wrote this degeneracy so I have in the least grown. i don't want this compression algorithm to be as bad as what I just linked is. At least a bit more performant and applicable.
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[Offer] I am a systems, network, and SciComp programmer, I am looking for small, short gigs to fund my libre projects. I have a good portfolio, and I have adequate grasp of theory. My prices begin at $5 and end at $60 for small, one-time gigs. C, x86-64|Aarch64 Assembly, Go, Python, Shell Scripting
I do a great deal of coding with Python. Most modern languages are similar. Like take my project PoxHash as an example. I wrote it in C, Rust, Nim, Go, Python and JS. So this alone should serve as enough of a proof that I can code. But know x many languages does not make you a 'good' programmer. Racking up languages in your portfolio is does not a programmer make! What makes a good programmer is 1- familiarity with theory 2- knowing where to apply that theory.
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[For Hire] Systems/Network/Optimization/Embedded | (x86-64|Aarch64 Assembly, C, Python) | Looking for challenging jobs | practical yet theory-based output | Surprisingly manageable prices | Portfolio | 13y coding
Hey. I was recently working on a pubsub fuzztester where I used C + Assembly to communicate with the broker and Python to pre-generate the packets. My client wanted a much simpler thing, and we decided to part ways. That is why I, as I promised my former client, to always specify that I am a person to always take the more challenging way, and never aim at mediocrity. My recent projects include PoxHash, a block hash algorithm by me, which I implemented in 6 languages (C, Rust, Go, Nim, JS, Python). I always aim at micro-optimization. I never half-ass a job, I may take full-assing it too far though. Another recent project of mine is ProtoGen (I know!), a series of application-layer protocols in Go. I try often not to language-hop much. I post small codes in Gist form too, for example, a PRNG in x86-64 Assembly and a Hash in Aarch64 Assembly here or a metaprogram in Bash here.
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[For Hire] Systems/Network/SciComp/(Embedded?) Programming (Assembly/C/Go/Rust/Python/Bash) - Affordable Prices (Starting at $100 to $200 per week)
You can view my portfolio in my Github profile, linked above. I have a special showcase session, sorted my projects by topic, and language also. I am a bit light on Assembly code samples, only have 3. That I am working on right now. My recent complete project was PoxHash, a block hash algorithm that is not very good, but is a good showcase of my skills as it is in six languages (C, Rust, Go, Python, Nim, JS). I have published several small Gists since then.
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My plan for making 256bit signed and unsigned integers in C. Please help me understand this concept better.
I am against overusing libraries anyhow. Some people freaking spoil library usage. There's a package on NPM called 'is-odd'. I shrill, and cringe every time I remember this fact. I managed to implement my own hashing algorithm (which is very slow and is not a proper hash algorithm in general but I had fun making it and fun and education was the point) in C, Rust, Go, Nim, Python and JS without using a single non-std library! Hell sometimes I did not even use the STD when I should have. For example, I wrote a function called to_e_notation/toENotation across all these 6 languages (albeit I did not make full use of every languages features, so I kinda cheated) which formats a float into e notation. Did I need to do it? No. But I wanted to. I'm currently writing a PNG decoder/encoder for my new Rust project. I initially wanted to forgo implementing Zlib standard and bind the official implementation myself but I now thing it would be cool if I implemented Zlib myself. Should be educational. Thoughts?
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My hash is slow. 1.5488e-01s for 20KB and that's for C. What can I do to increase its speed?
So I wrote a hash and implemented it in 6 languages: https://github.com/chubek/PoxHash
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This algorithm should NOT work, but it DOES!!?
I once thought bitwise operations in Python is impossible due to it rotating one to the left every time it overflows but I now realize even bitwise operations with Python is possible WITH overflow (like, not using it's array.array STD as I did in my implementation of Python implementation of PoxHash but you can just & the result with max of the bits like if you want your integer to be strictly a byte you just & it with 0xff. These tricks make the life of a systems programmer in Python much easier.
- 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!
What are some alternatives?
prvhash - PRVHASH - Pseudo-Random-Value Hash. Hash functions, PRNG with unlimited period, randomness extractor, and a glimpse into abyss. (inline C/C++) (Codename Gradilac/Градилак)
Protogen - ProtoGen, a collection of application-layer protocols in Go for TCP, UDP and UDM
c-hash - LiamLoads is a fast and secure 256-bit hashing function in pure C.
python-hash - LiamLoads is a fast and secure 256-bit hashing function in pure Python.
komihash - Very fast, high-quality hash function, discrete-incremental and streamed hashing-capable (non-cryptographic, inline C/C++) 26GB/s + PRNG
pn2codon - Python Rust FFI for reverse-translating Amino Acid sequences to DNA sequences
number-speller - Spell number words.
sha-2 - SHA-2 algorithm implementations
xxHash - Extremely fast non-cryptographic hash algorithm
undetected-chromedriver - Custom Selenium Chromedriver | Zero-Config | Passes ALL bot mitigation systems (like Distil / Imperva/ Datadadome / CloudFlare IUAM)
msquic - Cross-platform, C implementation of the IETF QUIC protocol, exposed to C, C++, C# and Rust.
EmmKiuTeeTi-Trials - Tests and Trials of MQTT and its Implementations