Nicola Greco

I am working to re-decentralize the webRead more about my work here. I am a researcher at Protocol Labs. PhD student (on leave) at MIT advised by Tim Berners-Lee and friend at Berkman Center. Once an entrepreneur, a UCL student, a Mozillian.

Mass-murderer space rock and hash collisions

November 3, 2015

I was on the #IPFS irc channel and some users were discussing about hash collisions, and I read this really clever quote.

A mass-murderer space rock happens about once every 30 million years on average. This leads to a probability of such an event occurring in the next second to about 10-15. That’s 45 orders of magnitude more probable than the SHA-256 collision. Briefly stated, if you find SHA-256 collisions scary then your priorities are wrong

- Nicola Greco,
Keep on rocking the decentralized web

Thanks for reading

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  • Mass-murderer space rock and hash collisions - November 3, 2015 - Nicola