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When is your birthday? The math behind hash collisions
Hash Collisions Explained 🎉
Hash collisions occur when two different inputs produce the same output hash value, undermining data integrity and security. Understanding the math behind hash collisions helps in designing more secure systems.
No code changes required.
2:05 am, May 9, 2026
guid
https://news.ycombinator.com/item?id=48068254
source_url
https://0xkrt26.github.io/math_behind_security/2026/05/08/birthday-problem.html
author_name
denismenace
id: 2626
uid: a8oRQ
insdate: 2026-05-09 02:05:28
title: When is your birthday? The math behind hash collisions
additional:
Hash collisions occur when two different inputs produce the same output hash value, undermining data integrity and security. Understanding the math behind hash collisions helps in designing more secure systems.
No code changes required.
category: Hacker News
md5:
guid: https://news.ycombinator.com/item?id=48068254
source_url: https://0xkrt26.github.io/math_behind_security/2026/05/08/birthday-problem.html
updated:
image:
author_name: denismenace
author_link:
uid: a8oRQ
insdate: 2026-05-09 02:05:28
title: When is your birthday? The math behind hash collisions
additional:
Hash Collisions Explained 🎉
Hash collisions occur when two different inputs produce the same output hash value, undermining data integrity and security. Understanding the math behind hash collisions helps in designing more secure systems.
No code changes required.
category: Hacker News
md5:
guid: https://news.ycombinator.com/item?id=48068254
source_url: https://0xkrt26.github.io/math_behind_security/2026/05/08/birthday-problem.html
updated:
image:
author_name: denismenace
author_link:
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- Ask HN: Share your productive usage of OpenClaw
- Ask HN: So what happened to Facebook "localhost" tracking?
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- Ask HN: Why hasn't there been a real competitor to Ticketmaster yet?
- Ask HN: Why is the HN crowd so anti-AI?
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- Astronomers find the edge of the Milky Way
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- Block the “Upgrade to Tahoe” Alerts
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- Can't Stop the Signal. Poison It
- Canada is looking to build up to 10 new nuclear reactors over the next 15 years
- Canada plans 'nuclear renaissance' with up to 10 reactors built by 2040
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- Cancel ChatGPT AI boycott surges after OpenAI pentagon military deal
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