Bitcoin's Transaction Malleability Issue Remains Far From Resolved
For the past several years, the Bitcoin network has been bedeviled by transaction malleability attacks. These attacks shot to fame during the notorious Mt. Gox theft where it was referred as the sole reason for interrupting withdrawals. Since then, the attack has distressed many digital currency companies, including high-volumed exchanges BitStamp and BTC-e. What is the Transaction Malleability? While transaction malleability is still a little difficult to explain in plain English, we can consider it as an attack that tampers the unique Bitcoin transaction ID before it is confirmed by....
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Having greatly influenced Mt. Gox in 2014, transaction malleability is a “new-old” issue within the Bitcoin industry. This issue can still create problems for the network, and negatively affect the perception of cryptocurrencies in general. As one of the exchanges that have faced several attempts of transaction malleability attacks against the platform,....
For the past several days*, the Bitcoin network has been plagued by a so-called "transaction malleability attack." Bitcoin users have experienced a number of annoyances, causing confusion and frustration. And while the transaction malleability issue is well-known and has plagued the Bitcoin network before, to many it is still unclear what it is, why it is a problem, who is causing the attack right now, and what can be done about it. *According to the claimed attacker (see below), the attack is currently paused at the time of writing, but could and probably will be continued at any time.....
The Bitcoin Network Under Attack. If you are involved in the Bitcoin ecosystem at all, in the last 72 hours you have been exposed to the phrase "transaction malleability." It's what Mt Gox blamed when it enacted a sudden and prolonged halting of all withdrawals, and it's the vehicle for what has been called a "massive and concerted attack" on various bitcoin exchanges. Transaction malleability had also been a known characteristic of the Bitcoin protocol for a while, as pointed out by many in the community when Mt Gox cited it as a security liability. Despite all of this tumult within the....
Gavin Adresen has provided the bitcoin community with an update related to the ongoing distributed denial of service attack (DDOS) that takes advantage of the transaction malleability issue we've been reported so much on these past two days. "Somebody (or several somebodies) is taking advantage of the transaction malleability issue and relaying mutated versions of transactions," wrote Andresen on a blog post. "This is exposing bugs in both the reference implementation and some exchange's software." Users of the reference implementation who are bitten by this bug may see their bitcoins....
Mark Karpeles pulling a Cassious Coin from behind the photographer's ear. Solid research has proven what many bitcoiners have long suspected; transaction malleability did not play a significant, if any, role in the disappearance of 850,000 BTC from Japanese exchange Mt. Gox. Christian Decker and Roger Wattenhofer of ETH in Zurich, Switzerland, combed through the blockchain to tally each instance of a potential transaction malleability attack in order to figure out exactly how much Bitcoin was put at risk by the alleged attacks. Their research concludes: The transaction malleability problem....