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Bitcoin Cryptography Broken in 2017

Bitcoin Cryptography Broken in 2017
Category: 
Bitcoin
By 
NCourtois
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Description

The digital signature scheme of bitcoin with SHA256+secp256k1 ECDSA will be broken before 31 December 2017 by security researchers. The attack should allow to forge digital signatures for at least a proportion of 1/1 million bitcoin users and steal money from them. It should be done faster than 2^100 point additions total including the time to examine the data.

Decision Logic

The decision will be based on the best attack reported in academic cryptography literature. The result should be disclosed or publicly demonstrated before 31 Dec. 2017. It should confirmed by a majority of at least 3 other independent researchers with a PhD in cryptography. Attacks in which the message was not signed correctly e.g. repeated identical randoms are NOT valid attacks.

CLOSING IN2017-12-31 23:00:00

9:40PM, Jan 21, 2017 UTC

11:00PM, Dec 31, 2017 UTC

11:55PM, Dec 31, 2017 UTC

12.580xCurrent Time-Weight Multiplier

Total Volume: 1.650

YES
Volume: 0.105
4.36625
# of Bets: 2
Payout
ROI
0.00
0%

*assumes current weight and volumes

NO
Volume: 1.545
60.58345
# of Bets: 12
Payout
ROI
0.00
0%

*assumes current weight and volumes

Discussion

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PartisanX 10:02PM, Sep 12, 2017 UTC
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Mirh 2:36PM, Apr 27, 2017 UTC
Looking at the decision logic, the answer to my own question is a definitive "no"
Mirh 2:29PM, Apr 27, 2017 UTC
Does the LBC count as "broken"? More of a brute force method really.
protus 8:56PM, Mar 1, 2017 UTC
@kolotoure77294 Holy smokes - Very interesting. Let's hope his endeavors are futile!
kolotoure77294 2:55AM, Jan 23, 2017 UTC
Dr. Nicolas Courtois (creator) is a cryptographer and code breaker. He was one of the experts at the Craig Wright meetings who debunked his claims (he's the guy Wright was swearing at). He obviously has some interest in this, maybe he's working on it.
protus 3:21PM, Jan 22, 2017 UTC
We have learned nothing it seems, eh?
praine 10:09PM, Jan 21, 2017 UTC
Lol. This again?

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