Reused R values again

[amaclin]

It doesn't mean that banks are better than the blockchain

It does. Or what the meaning of the word "better" in your language?

...When bitcoin accumulates few decades...

Bitcoin will die in three months maximum. May be sooner.

[newIndia]

The problem is that the security of cryptosystems can't be assured by following a checklist.

The problem is that you have to pay for everything.
Free cheese is only in mousetrap.
Free service (bitcoin/blockchain) can not be better than professional one (fiat/banks)

1. Free service like email has done better than the paid physical mail

2. Free service like news websites have done better than the paid news papers

It is about changing business model with technological advancement. I remember an old saying...

"Money can't buy the will power"

-snip-

...When bitcoin accumulates few decades...

Bitcoin will die in three months maximum. May be sooner.

[amaclin]

1. Free service like email has done better than the paid physical mail

These are different services. And you have to pay your internet provider even you do not use email

2. Free service like news websites have done better than the paid news papers

Do not compare ass and finger.

"Money can't buy the will power"

The cost you are paying for using bitcoin is too high compared with any other system

[newIndia]

1. Free service like email has done better than the paid physical mail

These are different services. And you have to pay your internet provider even you do not use email

- They serve the same purpose. Cost of internet is like bitcoin transaction fee for sending 1 M USD between 2 different continent.

2. Free service like news websites have done better than the paid news papers

Do not compare ass and finger.

- I compared stick with finger as the former is stronger than the later. Not sure how u end up to an asshole !!!

"Money can't buy the will power"

The cost you are paying for using bitcoin is too high compared with any other system

- Once upon a time people had to LEARN computer operation to send an email. Now your granny can do it. Bitcoin is an ongoing experiment, not a finished product. Hence, we enjoy some of the early adopter's advantage. Risk is the part and parcel of anything new.

[amaclin]

Bitcoin is an ongoing experiment, not a finished product.
Hence, we enjoy some of the early adopter's advantage.

No. You enjoy seeing the fall of one another financial pyramid. You are not early adopter today.
You are looser in ponzi scheme called "crypto-currency"

[BlindMayorBitcorn]

Bitcoin is an ongoing experiment, not a finished product.
Hence, we enjoy some of the early adopter's advantage.

No. You enjoy seeing the fall of one another financial pyramid. You are not early adopter today.
You are looser in ponzi scheme called "crypto-currency"

Ta da! Fun eh?

[Remember remember the 5th of November]

Bitcoin is an ongoing experiment, not a finished product.
Hence, we enjoy some of the early adopter's advantage.

No. You enjoy seeing the fall of one another financial pyramid. You are not early adopter today.
You are looser in ponzi scheme called "crypto-currency"

Bitcoin is an ongoing experiment, not a finished product.
Hence, we enjoy some of the early adopter's advantage.

No. You enjoy seeing the fall of one another financial pyramid. You are not early adopter today.
You are looser in ponzi scheme called "crypto-currency"

I think I found a Russian government official spreading fud. Cause he specifically cited cryptocurrencies, and his previous posts are in russian.

[itod]

It doesn't mean that banks are better than the blockchain

It does. Or what the meaning of the word "better" in your language?

If one system has better security then the other, it says nothing about other aspects of these systems. If you level them to common denominator so that you can claim one is better, you completely lose sight of their complexity which is above that common denominator. It's best seen when internet was described in the mid-90's as "electronic post-office". As a post office, old school ones may be "better", but internet is so much more. The same way banks are "better", but blockchain is so much more then "electronic money".

[BitCoinDream]

It doesn't mean that banks are better than the blockchain

It does. Or what the meaning of the word "better" in your language?

If one system has better security then the other, it says nothing about other aspects of these systems. If you level them to common denominator so that you can claim one is better, you completely lose sight of their complexity which is above that common denominator. It's best seen when internet was described in the mid-90's as "electronic post-office". As a post office, old school ones may be "better", but internet is so much more. The same way banks are "better", but blockchain is so much more then "electronic money".

Like Andreas Antonopoulos described bitcoin in Canadian senate...

"it is a programmable money"

[JorgeStolfi]

Trivia: This address is claimed to have the private key "1" and therefore to be the secp256k1 generator
http://btc.blockr.io/address/info/1EHNa6Q4Jz2uvNExL497mE43ikXhwF6kZm
Funny that it has activity at all.  Reddit thread about it:
http://www.reddit.com/r/Bitcoin/comments/2ra24j/til_the_secp256k1_generator_point_has_had_a_lot/

[amaclin]

The same way banks are "better", but blockchain is so much more then "electronic money".

Blockchain is the solution for Byzantine Generals Problem.
But.
Each solution has a cost (expenses).
The cost of blockchain solution becomes higher than the army cost.
So.
There are no reasons to spend more resources to solve a problem, than the cost of your army.
I am sorry, I can not explain it to everyone in good English language (yes, I am Russian).

If you don't believe me or don't get it, I don't have time to try to convince you, sorry. {*}

[TooDumbForBitcoin]

Bitcoin is an ongoing experiment, not a finished product.
Hence, we enjoy some of the early adopter's advantage.

No. You enjoy seeing the fall of one another financial pyramid. You are not early adopter today.
You are looser in ponzi scheme called "crypto-currency"

And the award for "First BCT Poster to Show No Understanding of the Term 'Ponzi Scheme' in 2015" goes to ..... Amaclin!  Congratulations.

[TooDumbForBitcoin]

Bitcoin will die in three months maximum. May be sooner.

This is a threat, not a prediction.

[amaclin]

And the award for "First BCT Poster to Show No Understanding of the Term 'Ponzi Scheme' in 2015" goes to ..... Amaclin!  Congratulations.

Thank you. Where can I get it?

This is a threat, not a prediction.

It is physics and math. I can not do anything with it. The network will die itself with or without my opinion

[TooDumbForBitcoin]

How about you?   No one but you chose to use counterparty or blockchain.info.

Great.
A have to add:
No one but you chose to use crypto-currency instead of national money.
You pay nothing to community - you have nothing back from it. Point.
This is law of conservation. Even Satoshi Nakamoto can not break it.

Transaction fees - read about them.

[Amitabh S]

I just need one important question answered: why did Satoshi or whoever decide to use this highly vulnerable signature scheme?
 

[amaclin]

I just need one important question answered: why did Satoshi or whoever decide to use this highly vulnerable signature scheme?

Because he/they didn't know about this vulnerability?

[CIYAM]

Because he/they didn't know about this vulnerability?

My guess is that and also that he/she/they didn't realise about the malleability issue (otherwise the sig would never have been included in the transaction hash).

[Amitabh S]

this: http://www.reddit.com/r/Bitcoin/comments/2onm5r/blockchaininfo_security_disclosure/

Thanks, for the link.  Although, if they already fixed this problem this morning, why are there still repeated R values generated?  
I still find reused R values in new transactions.   Is this just a browser cache issue or is the problem still not solved completely?

E.g.:

https://blockchain.info/tx/f10d5c469c634de25276aae9c4e14add80ad9c66000182fac1b30e72a99298fb

uses the same R values as:

https://blockchain.info/tx/cf0b65ec6a2f9b5e003358d7b9bb6e04b30138c4dba30724f600bf753bfc3f4a

two questions:

1. Is it a problem is the same R value is used for two different addresses?
2. How do you find reused R values?

For others:

I am using bitcoinj-0.11 for creating tx. Is this vulnerable?
Currently, I have not reused any address till now. However, I need to be sure I won't be affected by this.

[amaclin]

1. Is it a problem is the same R value is used for two different addresses?

Yes. The owner of privkey1 can resolve privkey2 and visa versa

2. How do you find reused R values?

sort uniq -d
of course this is not only way