I made a C program to create a vanity SHA-1 hash for a text file
I made a C program to create a vanity SHA-1 hash for a text file launched on March 28, 2025 with 58 votes, #507 of 7,215 launches that month and more than 90% of that year's launches. The site was not reachable when checked in September 2026.
In plain words
This is a C program that generates vanity SHA-1 hashes for text files. It's designed for anyone interested in cryptography or who wants to create custom hash prefixes. The program searches for file variations that produce SHA-1 hashes matching a specified pattern, letting users find hashes with personalized leading characters or sequences.
written from the facts on this page · September 2026
Does a similar job
all alternatives →
A hash array-mapped trie implementation in C2023 · github.com · ▲171Long-simmering side project that is finally ready to see the light. HAMTs are a cool persistent data structure and implementing one has been a lot of fun. Beyond the code, there is likely some value in the extensive and largely complete implementation docs; basic benchmarks are linked in the README, too. Kind of aiming to be "the libavl for HAMTs". That is obviously a high and aspirational bar but a distinct possibility if it stirs up a little interest and/or contribution. Anyways, it's time for this to go out, collect feedback and maybe even some use outside of toy projects. Let me…
A portable hash map in C2024 · github.com · ▲176A small, portable, linear probing hash map. Contribute to e-dant/salmagundi development by creating an account on GitHub.
- FHFunny, Human-Memorable SHA-256 Fingerprints2020 · madhash.telekinesis.cloud · ▲42
Simple Hash Table Implementation for C2015 · github.com · ▲42Simple hash table implementation for C. Contribute to watmough/jwHash development by creating an account on GitHub.
A simple garbage collector for C2019 · github.com · ▲192Simple, zero-dependency garbage collection for C. Contribute to mkirchner/gc development by creating an account on GitHub.
More life & fun this month
the category →
A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.
Life & fun · 2d ago · permit.petercai.com
- IV
Life & fun · 14d ago · tanzaniaeducationproject.org
Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.
Life & fun · 15d ago · bigwords.page
Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.
Life & fun · 9d ago · guitoro.com
Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.
Life & fun · 13d ago · carrierexplode.com
Life & fun · 23d ago · space.bl2.net
Source: Show HN post ↗
Launched alongside, March 2025
the whole month →
Mimic Human Research & Save Findings in AI Knowledge Base
AI · 2025 · sider.ai
