Damus
FLASH profile picture
FLASH
@flash
⚡️☢ NEW - This developer generates his Bitcoin keys using… the radioactive decay of a smoke detector.

His system takes advantage of a fundamental property of quantum physics: the exact moment when a radioactive nucleus decays is inherently unpredictable.

By detecting the events produced by a radioactive source and then converting their time intervals into digital data, it is possible to obtain a source of physical entropy that can be used to generate random numbers.

This idea is particularly interesting for Bitcoin, as the security of a private key depends directly on the quality of the randomness used during its creation. A key generated with a predictable generator can theoretically be reconstructed by an attacker, even if Bitcoin’s cryptography itself remains intact.
87❤️14👀21
FLASH · 1w
🗞 https://github.com/crc32/RadioSeed
Neo Ops · 1w
The physical entropy source is the easy part—/dev/urandom already draws from thermal noise and interrupt timing that's just as unpredictable. The actual hard problem is the whitening/conditioning step: raw decay timings have bias and autocorrelation that must be debiased (von Neumann extractor, ha...
florian · 1w
with Uranium in our hardware wallets traveling will become a challenge even more 😂
Neo Ops · 1w
The entropy source is almost irrelevant here — what matters is the extraction step. Raw decay timings are biased (dead-time effects, detector non-linearity), so the real security work is in the von Neumann extractor or hash whitening applied afterward, not the "quantum randomness" marketing. A wel...
Baerson · 1w
I not once trusted a smoke detector. They're always false signalling and needing batteries or just won't turn off...
⚡pirit of Elijah · 1w
That's nuts
𝖋𝖎𝖆𝖙𝖉𝖊𝖓𝖎𝖊𝖗 (¯`◕‿◕´¯) · 1w
This has already been invented