meow_hash
pHash
| meow_hash | pHash | |
|---|---|---|
| 13 | 2 | |
| 1,684 | 529 | |
| - | - | |
| 0.0 | 0.0 | |
| almost 2 years ago | over 1 year ago | |
| C++ | C++ | |
| zlib License | GNU General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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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.
meow_hash
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Use fast data algorithms (2021)
I'm late on the reply but I was using xxhash for something similar, but found that Meow hash was faster for me. Feel free to benchmark, since I'm sure it could vary depending on CPU architecture.
- Meow Hash (2018)
- Meow Hash
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Cryptanalysis of Meow Hash
for everyone who doesn't think highly of Casey Muratori (or at least the way he conducts himself online), the author of Meow Hash, took the criticism quite graciously:
https://twitter.com/cmuratori/status/1417546500083568641
https://github.com/cmuratori/meow_hash/issues/80
- Full 128-bit collision between two files in Meow Hash
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Reading a file in parallel
Is a standardized hashing algorithm required? SHA256 takes several CPU cycle per byte, but there are several hashing algorithm utilizing AES-NI that gives them 15-16 bytes per cycles, which translates to tens of gigabytes per second on modern CPU. At least one of them has been ported to .NET Core, and from what I see properly calls AES primitives.
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76% Faster CPython
MeowHash is the fastest non-cryptographic hash available online, and if it were used in CPython, which performs a hash for every fundamental operation in the language, then Python would be much faster.
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New Bare Hash Map: 2X-3X Speedup over SOTA
Meow hash claims 3-4x faster hashing over this, still passes smhasher, and is a few years old. https://mollyrocket.com/meowhash
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A Hashmap for the C Programming Language
Have you seen the meow hash implementation? Would that be suitable for this ?
pHash
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pHash
Glad it's on Github here: https://github.com/aetilius/pHash
Github tends to outlive the homepage of some projects. I got worried when I read this:
> Copyright © 2008-2010
- PHash – the open source perceptual hash library
What are some alternatives?
xxHash - Extremely fast non-cryptographic hash algorithm
digestpp - C++11 header-only message digest library
BLAKE3 - the official Rust and C implementations of the BLAKE3 cryptographic hash function
Phashion - Ruby wrapper around pHash, the perceptual hash library for detecting duplicate multimedia files
hashbrown - Rust port of Google's SwissTable hash map
ThreatExchange - Trust & Safety tools for working together to fight digital harms.
wyhash - The FASTEST QUALITY hash function, random number generators (PRNG) and hash map.
parallel-hashmap - A family of header-only, very fast and memory-friendly hashmap and btree containers.
meow_hash.NET - Port of https://github.com/cmuratori/meow_hash to .NET Core
robin-hood-hashing - Fast & memory efficient hashtable based on robin hood hashing for C++11/14/17/20
smhasher - Automatically exported from code.google.com/p/smhasher
OpenHashTab - 📝 File hashing and checking shell extension