1.openwall / john
John the Ripper jumbo - advanced offline password cracker, which supports hundreds of hash and cipher types, and runs on many operating systems, CPUs, GPUs, and even some FPGAs
+34 stars
from 13,817 · score 3.56
Trending repositories
Ranked by Attention Score: stars gained over the last 7 complete days
16 repositories by Attention Score · Oct 27, 2026 – Nov 2, 2026 (UTC)
2.Cyan4973 / xxHash
Extremely fast non-cryptographic hash algorithm
+27 stars
from 11,373 · score 3.33
3.martinus / unordered_dense
A fast & densely stored hashmap and hashset
+7 stars
from 1,503 · score 2.08
4.paulmillr / noble-hashes
Audited & minimal JS implementation of hash functions, MACs and KDFs.
+6 stars
from 935 · score 1.95
5.RustCrypto / hashes
Collection of cryptographic hash functions written in pure Rust
+5 stars
from 2,281 · score 1.79
6.greg7mdp / parallel-hashmap
A family of header-only, very fast and memory-friendly hashmap and btree containers.
+4 stars
from 3,224 · score 1.61
7.ashvardanian / StringZilla
Up to 100x faster strings for C, C++, CUDA, Python, Rust, Swift, JS, & Go, leveraging NEON, AVX2, AVX-512, SVE, GPGPU, & SWAR to accelerate search, hashing, sorting, edit distances, sketches, and memory ops 🦖
+3 stars
from 3,576 · score 1.39
8.greg7mdp / sparsepp
A fast, memory efficient hash map for C++
+3 stars
from 1,311 · score 1.39
9.noraj / haiti
:key: Hash type identifier (CLI & lib)
+3 stars
from 1,007 · score 1.39
10.martinus / robin-hood-hashingArchived
Fast & memory efficient hashtable based on robin hood hashing for C++11/14/17/20
+2 stars
from 1,618 · score 1.10
11.andreiverse / gorilla
tool for generating wordlists or extending an existing one using mutations.
+2 stars
from 389 · score 1.10
12.BcryptNet / bcrypt.net
BCrypt.Net - Bringing updates to the original bcrypt package
+1 stars
from 998 · score 0.69
13.ektrah / nsec
A modern and easy-to-use cryptographic library for .NET based on libsodium
+1 stars
from 451 · score 0.69
14.Password4j / password4j
Java cryptographic library that supports Argon2, bcrypt, scrypt and PBKDF2 aimed to protect passwords in databases. Easy to use by design, highly customizable, secure and portable. All the implementations follow the standards and have been reviewed to perform better in the JVM.
+1 stars
from 437 · score 0.69
15.clem9669 / wordlists
Various wordlists FR & EN - Cracking French passwords
+1 stars
from 328 · score 0.69
16.avaneev / komihash
Very fast, high-quality hash function, discrete-incremental and streamed hashing-capable (non-cryptographic, header-only C/C++) 27GB/s + PRNG
+1 stars
from 287 · score 0.69