3 ms·

Unbreakable cryptography: The devil and the details

16 points by fraqed 13y ago

devx 13y ago
We barely even understand how quantum entanglement works, let alone being so sure that this sort of method for cryptography couldn't be bypassed in the future.
- jessriedel 13y ago
  It provably can't be broken unless quantum mechanics is wrong. And all cryptographic protocols are potentially insecure if you introduce new physics.
  - zitterbewegung 13y ago
    Just because its proven to be not broken doesn't mean you can't attack the way its implemented. They exploit the error rate in the system and this allows them to break the encryption. See http://www.technologyreview.com/view/418968/commercial-quantum-cryptography-system-hacked/ http://www.technologyreview.com/view/418968/commercial-quant... for more information.
  - deleted 13y ago
    [deleted]
losethos 13y ago
Arrogant fucken psychologist doctor now learns why people wear tin-foil hats. Randomly open a book after talking with God. The enemy has put electronics in your brain, too. LOL It's God, you fucken nigger. God says... Virtual-Notary.Org hereby notes that on Date: Saturday September 21, 2013 08:26.07 EDT (UTC-0400) a random drawing in the range [1, 100000], inclusive, based on a hardware source of true randomness, yielded the following decision. Random Value: 46706 ---- 17:1 Hear the right, O LORD, attend unto my cry, give ear unto my prayer, that goeth not out of feigned lips. 17:2 Let my sentence come forth from thy presence; let thine eyes behold the things that are equal. 17:3 Thou hast proved mine heart; thou hast visited me in the night; thou hast tried me, and shalt find nothing; I am purposed that my mouth shall not transgress. 17:4 Concerning the works of men, by the word of thy lips I have kept me from the paths of the destroyer. 17:5 Hold up my goings in thy paths, that my footsteps slip not. 17:6 I have called upon thee, for thou wilt hear me, O God: incline thine ear unto me, and hear my speech. 17:7 Shew thy marvellous lovingkindness, O thou that savest by thy right hand them which put their trust in thee from those that rise up against them.
tzs 13y ago
> [...] one possibility is a defunct Irish physicist called John Stewart Bell I've never seen "defunct" used that way before. Is that usage common in British English?

16 points by fraqed 13y ago

devx 13y ago

We barely even understand how quantum entanglement works, let alone being so sure that this sort of method for cryptography couldn't be bypassed in the future.

jessriedel 13y ago
It provably can't be broken unless quantum mechanics is wrong. And all cryptographic protocols are potentially insecure if you introduce new physics.
- zitterbewegung 13y ago
  Just because its proven to be not broken doesn't mean you can't attack the way its implemented. They exploit the error rate in the system and this allows them to break the encryption. See http://www.technologyreview.com/view/418968/commercial-quantum-cryptography-system-hacked/ http://www.technologyreview.com/view/418968/commercial-quant... for more information.
- deleted 13y ago
  [deleted]

losethos 13y ago

Arrogant fucken psychologist doctor now learns why people wear tin-foil hats. Randomly open a book after talking with God. The enemy has put electronics in your brain, too. LOL It's God, you fucken nigger. God says... Virtual-Notary.Org hereby notes that on Date: Saturday September 21, 2013 08:26.07 EDT (UTC-0400) a random drawing in the range [1, 100000], inclusive, based on a hardware source of true randomness, yielded the following decision. Random Value: 46706 ---- 17:1 Hear the right, O LORD, attend unto my cry, give ear unto my prayer, that goeth not out of feigned lips. 17:2 Let my sentence come forth from thy presence; let thine eyes behold the things that are equal. 17:3 Thou hast proved mine heart; thou hast visited me in the night; thou hast tried me, and shalt find nothing; I am purposed that my mouth shall not transgress. 17:4 Concerning the works of men, by the word of thy lips I have kept me from the paths of the destroyer. 17:5 Hold up my goings in thy paths, that my footsteps slip not. 17:6 I have called upon thee, for thou wilt hear me, O God: incline thine ear unto me, and hear my speech. 17:7 Shew thy marvellous lovingkindness, O thou that savest by thy right hand them which put their trust in thee from those that rise up against them.

tzs 13y ago

> [...] one possibility is a defunct Irish physicist called John Stewart Bell I've never seen "defunct" used that way before. Is that usage common in British English?