2 ms·
Sounds pretty fucking expensive. You can get a $10 RTL-SDR [1] dongle that happily churns out over 2MSp/s and feed random radio noise to your entropy pool usin
by yuvadam 11y ago
Sounds pretty fucking expensive.
You can get a $10 RTL-SDR [1] dongle that happily churns out over 2MSp/s and feed random radio noise to your entropy pool using rtl_entropy [2].
Also what's up with the flag, 'murica?
[1] - http://sdr.osmocom.org/trac/wiki/rtl-sdr http://sdr.osmocom.org/trac/wiki/rtl-sdr
[2] - https://github.com/pwarren/rtl-entropy https://github.com/pwarren/rtl-entropy
- nutate 11y agoThat's kinda neat thanks!
- acqq 11y agoVery nice, on [2] are the instructions: "If you're serious about the cryptographic security of your entropy source, you should probably short, or put a 50 Ohm load on the antenna port, and put the whole assembly in a shielded box. Then you're getting entropy from the thermal noise of the amplifiers which is much harder to interfere with than atmospheric radio." But where do you find $10 dongles? I've found just NooElec NESDR XTR for $50? Edit: OK, there are cheaper dongles with RTL2832U, just not with E4000
- Someone1234 11y agoThey're selling a $50 "product." You've linked to a $10 experiment. Just the fact that theirs comes with a signed Windows driver and software Linux support out of the box, justifies every cent of the $40. This complaint is akin to people who complain "a $700 iPhone only has $150 of parts." It might be true, but it ignores the entire development cost, value add, and ease of use relative to buying a box of bolts and building an iPhone (or in this case a RND source). Their price is very reasonable, and your $10 alternative is not a realistic alternative.