Full Disclosure mailing list archives

Re: OT What is happening with bitcoins?


From: Ron Scott-Adams <ron () tohuw net>
Date: Tue, 11 Mar 2014 07:34:44 -0400

Julius hit the nail on the head here. Transaction malleability is not some heretofore undiscovered bug in the Bitcoin 
implementation. It was a known entity long ago, and presumably with the creator(s) awareness. It really isn’t a problem 
itself; it’s perfectly mitigable with the correct implementations on the exchange’s side. It’s worth noting nearly all 
of the FUD surrounding BTC comes down to mistakes made with and among exchanges. Exchanges of any kind carry risk, and 
a new kind of exchange such as this is bound to have some serious question marks in the first many years of existence.

For more on transaction malleability and the technical considerations, see 
https://en.bitcoin.it/wiki/Transaction_Malleability, noting especially the following:
“...this does mean that, for instance, it is not safe to accept a chain of unconfirmed transactions under any 
circumstance because the later transactions will depend on the hashes of the previous transactions, and those hashes 
can be changed until they are confirmed in a block.”

The above is a huge note, and is made clear elsewhere as well. However, mistakes around this were still made, and 
continue to be made today. Live and learn, caveat emptor, etc.

On Mar 10, 2014, at 10:57 AM, Julius Kivimäki <julius.kivimaki () gmail com> wrote:

Saying that the malleability thing is an issue with bitcoins is like saying that sql injection is an issue with mysql.


2014-03-07 15:58 GMT+02:00 Meaux, Kirk <Kirk.Meaux () ctcd edu>:
More to the point, has the transaction malleability issue been fixed that caused Magic’s downfall?

Even though most exchanges just code around it, it’s still kind of a really big issue if it isn’t fixed. :d

 

 

From: Full-Disclosure [mailto:full-disclosure-bounces () lists grok org uk] On Behalf Of Pedro Worcel
Sent: Thursday, March 06, 2014 6:09 PM
To: Georgi Guninski
Cc: full-disclosure
Subject: Re: [Full-disclosure] OT What is happening with bitcoins?

 

Bitcoins are doing great actually. =)

Used to be worth 0 a few years back, useless, and now you can use them to buy some stuff.


 

2014-03-07 4:06 GMT+13:00 Georgi Guninski <guninski () guninski com>:

Read on theregister that bitcoins are in trouble.

Allegedly mtgox lost $400M maybe related to
transactions.

Are the bugs in bitcoin or just sufficiently
many ones got rooted?

Is bitcoin still alive?

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_______________________________________________
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