5 ms·

Adding noise helps, but an attacker can trade bitrate for noise immunity. Probably the only way of keeping data secure would be to heavily insulate (noise, the

Adding noise helps, but an attacker can trade bitrate for noise immunity. Probably the only way of keeping data secure would be to heavily insulate (noise, thermal, RF, power, etc) the room so that any signal would take weeks to pass through the insulation, and then rotate your key material more often than that. Opening the door would have to dump power to the room before the door can be opened so an attacker couldn't leak data out when people entered/left.

Jerrrry 5y ago
rotating the keys quicker than they can be exfiltrated, and expanded. similar to the original reason password rotation exists - that the hashes of passwords to all users were known to all parties, and were assumed cracked after a certain timeframe - passwords were required to be changed before that cyclic window. similarly, captcha's for high-sensitive sites embed the domain in the captcha, and only allow the captcha for a small timeframe. it then has a delay to show/fetch the captcha challenge, and must be completed/expires quickly. this reduces the chance of a MitM attack or a phishing attack to nil. ultimately, if you want to prevent information leakage, you'll have to create a event horizon surrounding the secret. and even then, Hawking predicts that black holes sweat, so even then, your 2^^8^^8 key is still derivable from collecting and de-entrophizing the sweated muons of a photon-sphere. *: unless you use reversible computing to generate the secret, then reverse the computation, but keep the result. this prevents people in the future from collecting information on current wave-states, barring entanglement.
- dr_dshiv 5y ago
  What. The. F
  - bitexploder 5y ago
    The nuts and bolts of information theory, of course.
  - ceroxylon 5y ago
    you've never de-entrophized the sweated muons of a photon-sphere before?
    - omginternets 5y ago
      Are people like this even allowed on Hacker News??
      - Jerrrry 5y ago
        I post by whistling DT-MF tones into a payphone. The DT-MF tones exploit a small ACE allowing a POST payload to be reconstructed and curl-ed. The payphone and nearby homeless are then vaporized for opsec.

Jerrrry 5y ago

rotating the keys quicker than they can be exfiltrated, and expanded. similar to the original reason password rotation exists - that the hashes of passwords to all users were known to all parties, and were assumed cracked after a certain timeframe - passwords were required to be changed before that cyclic window. similarly, captcha's for high-sensitive sites embed the domain in the captcha, and only allow the captcha for a small timeframe. it then has a delay to show/fetch the captcha challenge, and must be completed/expires quickly. this reduces the chance of a MitM attack or a phishing attack to nil. ultimately, if you want to prevent information leakage, you'll have to create a event horizon surrounding the secret. and even then, Hawking predicts that black holes sweat, so even then, your 2^^8^^8 key is still derivable from collecting and de-entrophizing the sweated muons of a photon-sphere. *: unless you use reversible computing to generate the secret, then reverse the computation, but keep the result. this prevents people in the future from collecting information on current wave-states, barring entanglement.

dr_dshiv 5y ago
What. The. F
- bitexploder 5y ago
  The nuts and bolts of information theory, of course.
- ceroxylon 5y ago
  you've never de-entrophized the sweated muons of a photon-sphere before?
  - omginternets 5y ago
    Are people like this even allowed on Hacker News??
    - Jerrrry 5y ago
      I post by whistling DT-MF tones into a payphone. The DT-MF tones exploit a small ACE allowing a POST payload to be reconstructed and curl-ed. The payphone and nearby homeless are then vaporized for opsec.