Let's Cut Through the Bitcoin Hype: A Hacker-Entrepreneur ...

Bitcoin Quotes - We are not the only ones who love BTC. Please add to the list if you have good ones

submitted by bitvote to Bitcoin [link] [comments]

I tried to hack BitCoin and failed - Dan Kaminsky

I tried to hack BitCoin and failed - Dan Kaminsky submitted by imbspar to Bitcoin [link] [comments]

In May 2013, Dan Kaminski, renowned security researcher, bet 10BTC against Jeff Garzik, Bitcoin core developer, about whether Bitcoin's underlying Proof-of-Work hash function (Sha-256) would be replaced within 12 months.

The claim
The bet
Hey, Jeff - did that full-of-himself Kaminski pay up?
submitted by hnmZYEvzbkHk to Bitcoin [link] [comments]

Dan Kaminsky on Twitter: "As much sympathy as I have for the crew at Ethereum, this is exactly what I expected to happen to Bitcoin, that just didn't."

Dan Kaminsky on Twitter: submitted by derpUnion to Bitcoin [link] [comments]

Some Thoughts On Bitcoin - Dan Kaminsky

Some Thoughts On Bitcoin - Dan Kaminsky submitted by apython88 to Bitcoin [link] [comments]

06-18 15:51 - 'Dan Kaminsky on Twitter: "As much sympathy as I have for the crew at Ethereum, this is exactly what I expected to happen to Bitcoin, that just didn't."' (twitter.com) by /u/derpUnion removed from /r/Bitcoin within 592-597min

Dan Kaminsky on Twitter: "As much sympathy as I have for the crew at Ethereum, this is exactly what I expected to happen to Bitcoin, that just didn't."
Go1dfish undelete link
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Author: derpUnion
submitted by removalbot to removalbot [link] [comments]

Dan Kaminsky on Twitter: "As much sympathy as I have for the crew at Ethereum, this is exactly what I expected to happen to Bitcoin, that just didn't."

Dan Kaminsky on Twitter: submitted by BitcoinAllBot to BitcoinAll [link] [comments]

05-04 13:51 - 'Gavin's new commentary on Wright situation in email with Dan Kaminsky • /r/btc' (reddit.com) by /u/AscotV removed from /r/Bitcoin within 25-30min

Gavin's new commentary on Wright situation in email with Dan Kaminsky • /btc
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Author: AscotV
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Gavin Andresen responded to Dan Kaminsky /r/Bitcoin

Gavin Andresen responded to Dan Kaminsky /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

05-03 23:11 - 'Gavin Andresen responded to Dan Kaminsky' (self.Bitcoin) by /u/Ph03n1xII removed from /r/Bitcoin within 15-20min

'''
"Yeah, what the heck?
I was as surprised by the ‘proof’ as anyone, and don’t yet know exactly what is going on.
It was a mistake to agree to publish my post before I saw his– I assumed his post would simply be a signed message anybody could easily verify.
And it was probably a mistake to even start to play the Find Satoshi game, but I DO feel grateful to Satoshi.
If I’m lending credibility to the idea that a public key operation should remain private, that is entirely accidental. OF COURSE he should just publish a signed message or (equivalently) move some btc through the key associated with an early block.
Feel free to quote or republish this email."
[link]1
'''
Gavin Andresen responded to Dan Kaminsky
Go1dfish undelete link
unreddit undelete link
Author: Ph03n1xII
1: dankamin**y*c*m
Unknown links are censored to prevent spreading illicit content.
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A year and a half ago security expert Dan Kaminsky predicted pools would be the downfall of Bitcoin. Bitcoiners called him a "clown".

A year and a half ago security expert Dan Kaminsky predicted pools would be the downfall of Bitcoin. Bitcoiners called him a submitted by wonderkindel to Buttcoin [link] [comments]

Dan Kaminsky, especialista e referência mundial em segurança de rede de empresas como Microsoft e Cisco, tentou hackear o Bitcoin... e não conseguiu

Dan Kaminsky, especialista e referência mundial em segurança de rede de empresas como Microsoft e Cisco, tentou hackear o Bitcoin... e não conseguiu submitted by gerdau to BrasilBitcoin [link] [comments]

I tried to hack BitCoin and failed - Dan Kaminsky

I tried to hack BitCoin and failed - Dan Kaminsky submitted by d3sperad0 to countermine [link] [comments]

Dan Kaminsky Predicts The End Of The Current Proof-Of-Work Function - Bitcoin Forum - The Unofficial Bitcoin Forum

submitted by bitcoinforum to Bitcoinforum [link] [comments]

Dan Kaminsky Highlights Flaws Bitcoin

Dan Kaminsky Highlights Flaws Bitcoin submitted by nafe19 to technology [link] [comments]

Craig Wright: The Real Satoshi Or The Real Scammer

Today we will focus on Craig Wright, the person who took the liberty to declare himself as true Satoshi Nakamoto and who tries to take all the credit of the creator of Bitcoin, the main cryptocurrency.
Bitcoin is considered to be one of the progressive forms of payments — absolutely transparent, distributed and resistant to external influence. Its creator must be at least a genius, and most importantly, a billionaire — because a significant amount of Bitcoins mined in the early stages of the project is concentrated in his hands. It is known that Satoshi Nakamoto retired from the project around 2010 and no one knows exactly who is he really is.
In December 2015, two American publications — Gizmodo and Wired — published huge investigations aimed at finding a man who has been hiding under the name of Satoshi Nakamoto since 2008. Clues led journalists to Craig Wright, a 45-year-old entrepreneur from Australia, which on many grounds could be reckoned as a true Satoshi. For example, there were publications about the ideas of a decentralized payment system similar to Bitcoin in Wright’s blog in 2008, a year before Satoshi Nakamoto himself created BTC. Another interesting fact is that in 2013 he invested more than one million BTC in the project to create his Bitcoin Bank — supposedly only the creator of Bitcoin could own such amount of coins.
In correspondence with the publications, Craig indirectly confirmed that he is Nakamoto. At the same time, in December, 2015, Wright said that he was not going to talk about himself publicly. But almost six months later Craig Wright appeared on the front pages. Unexpectedly for many, Craig decides to give an interview to the BBC and The Economist, in which once again, but already publicly assures that he is Satoshi Nakamoto. As the main proof, Wright provided a “cryptographic signature” from the private key used in the first Bitcoin transactions by Satoshi Nakamoto himself.
Since then, Dr. Wright did not give up his words and continued to tell everyone that he is Satoshi. Later Craig said that he would sue anyone who slanders him and generally denies his merits in the creation of Bitcoin.
And while he was just talking around declaring himself as the creator of BTC — all this was tolerated and ignored. But when Wright began to threaten all who disagreed with his lies, the crypto-community decided to teach him a lesson.
Binance CEO Changpeng Zhao wrote the following on his Twitter:
“Craig Wright is not Satoshi. Anymore of this sh!t, we delist!”
His example was followed by some other exchanges, like ShapeShift and Kraken, which also announced the delisting of BSV.
Blogger and ex-hacker Nik Cubrilovic and cybersecurity researcher Dan Kaminsky published their own investigations in which Wright is exposed as a great deceiver. Enthusiasts also investigated the activities of Wright and his companies. It turned out that the purpose of the existence of many of them was to draw tax refunds and the operation of other benefits that are provided to companies focused on research activities.
When an entrepreneur’s business started to decline and companies have earned an unpleasant reputation, Wright decides to appear before the public as Satoshi Nakamoto. According to Cubrilovic’s opinion, this could improve Craig’s affairs, attract new investments and add excitement since it is known that Nakamoto owns large amounts of Bitcoins.
Craig’s opponents also notice one detail: Satoshi Nakamoto would certainly stand on the side of the Bitcoin community that would like to leave the BTC system in its original form. However, in a conversation with The Economist Wright drew a different picture: if Bitcoin power can be repeatedly scaled, then it will be able to replace not only all banking systems but many others, becoming a truly mainstream currency.
In this case, the regulation and support of such cryptocurrency would have to be taken up by large organizations — from banks, already interested in using blockchain technology, to entire states. If this happens, Bitcoin will really replace conventional currency but will lose its independence — the main reason for its creation.
Here are some interesting facts about Craig Wright:
  1. In the early 1990s, worked as a sauce cook at a French restaurant.
  2. Wright filed about 114 Blockchain-related patents since 2017
  3. Craig Wright has his own companies, for example, the Tulip Trading company, which has been very successful in developing supercomputers, as well as DeMorgan Ltd and Panopticrypt Pty Ltd, engaged in various operations with cryptocurrencies. But Wright’s main project is, of course, his own Bitcoin SV (Satoshi Vision), which appeared as a result of the fork of Bitcoin Cash in November 2018. The fork’s reason was the dissatisfaction of developers and miners with a size of the blockchain that was originally written in code. Transactions were processed very slowly, so Bitcoin Cash ABC appeared, where the size was increased to 8 megabytes. But this was not enough for Craig Wright, and he initiated the second fork, setting the block size to 128 megabytes in the currency he was in charge of.
  4. In February 2018 Wright was sued by David Kleiman — a computer scientist and cyber-security expert suspected to be one of the developers behind the Bitcoin and the blockchain tech. Kleiman said that Wright stole between 550,000 and 1,100,000 BTC.
  5. In 2018, Craig Wright was sued, accusing him of forging contracts and signatures in order to assign Bitcoins in the amount of $5 billion.
  6. In October 2017, Cointelegraph published a list of the most influential individuals from the blockchain industry. Not finding his name in it, Craig Wright appealed to the media with a comment about their negative mood regarding his personality. At the same time in the Cointelegraph ranking was the name Satoshi Nakamoto. This situation was noted as Wright’s recognition that he is not the creator of Bitcoin.
  7. Craig is suspected of repeatedly conducting operations to cash large amounts of BTC. During one of the checks, he brought the family from his native Sydney and moved to London to continue working and creating his own business.
What do you think about Craig Wright? Write your opinion in the comments below!
Like and share this article if you find it useful. Want more interesting articles on the crypto world? Follow us on Medium,Twitter, Facebook, and Reddit to get Stealthex.io updates and the latest news about the crypto world. For all requests message us at [[email protected]](mailto:[email protected]).
submitted by Stealthex_io to btc [link] [comments]

What Do the Latest NSA Leaks Mean for Bitcoin? | An older article from 2013 but still filled with great questions and concerns regarding cryptography and security of technology like Bitcoin.

What Do the Latest NSA Leaks Mean for Bitcoin? | An older article from 2013 but still filled with great questions and concerns regarding cryptography and security of technology like Bitcoin. submitted by brownestrabbit to Bitcoin [link] [comments]

Craig Wright: The Real Satoshi Or The Real Scammer

Today we will focus on Craig Wright, the person who took the liberty to declare himself as true Satoshi Nakamoto and who tries to take all the credit of the creator of Bitcoin, the main cryptocurrency.
Bitcoin is considered to be one of the progressive forms of payments — absolutely transparent, distributed and resistant to external influence. Its creator must be at least a genius, and most importantly, a billionaire — because a significant amount of Bitcoins mined in the early stages of the project is concentrated in his hands. It is known that Satoshi Nakamoto retired from the project around 2010 and no one knows exactly who is he really is.
In December 2015, two American publications — Gizmodo and Wired — published huge investigations aimed at finding a man who has been hiding under the name of Satoshi Nakamoto since 2008. Clues led journalists to Craig Wright, a 45-year-old entrepreneur from Australia, which on many grounds could be reckoned as a true Satoshi. For example, there were publications about the ideas of a decentralized payment system similar to Bitcoin in Wright’s blog in 2008, a year before Satoshi Nakamoto himself created BTC. Another interesting fact is that in 2013 he invested more than one million BTC in the project to create his Bitcoin Bank — supposedly only the creator of Bitcoin could own such amount of coins.
In correspondence with the publications, Craig indirectly confirmed that he is Nakamoto. At the same time, in December, 2015, Wright said that he was not going to talk about himself publicly. But almost six months later Craig Wright appeared on the front pages. Unexpectedly for many, Craig decides to give an interview to the BBC and The Economist, in which once again, but already publicly assures that he is Satoshi Nakamoto. As the main proof, Wright provided a “cryptographic signature” from the private key used in the first Bitcoin transactions by Satoshi Nakamoto himself.
Since then, Dr. Wright did not give up his words and continued to tell everyone that he is Satoshi. Later Craig said that he would sue anyone who slanders him and generally denies his merits in the creation of Bitcoin.
And while he was just talking around declaring himself as the creator of BTC — all this was tolerated and ignored. But when Wright began to threaten all who disagreed with his lies, the crypto-community decided to teach him a lesson.
Binance CEO Changpeng Zhao wrote the following on his Twitter:
“Craig Wright is not Satoshi. Anymore of this sh!t, we delist!”
His example was followed by some other exchanges, like ShapeShift and Kraken, which also announced the delisting of BSV.
Blogger and ex-hacker Nik Cubrilovic and cybersecurity researcher Dan Kaminsky published their own investigations in which Wright is exposed as a great deceiver. Enthusiasts also investigated the activities of Wright and his companies. It turned out that the purpose of the existence of many of them was to draw tax refunds and the operation of other benefits that are provided to companies focused on research activities.
When an entrepreneur’s business started to decline and companies have earned an unpleasant reputation, Wright decides to appear before the public as Satoshi Nakamoto. According to Cubrilovic’s opinion, this could improve Craig’s affairs, attract new investments and add excitement since it is known that Nakamoto owns large amounts of Bitcoins.
Craig’s opponents also notice one detail: Satoshi Nakamoto would certainly stand on the side of the Bitcoin community that would like to leave the BTC system in its original form. However, in a conversation with The Economist Wright drew a different picture: if Bitcoin power can be repeatedly scaled, then it will be able to replace not only all banking systems but many others, becoming a truly mainstream currency.
In this case, the regulation and support of such cryptocurrency would have to be taken up by large organizations — from banks, already interested in using blockchain technology, to entire states. If this happens, Bitcoin will really replace conventional currency but will lose its independence — the main reason for its creation.
Here are some interesting facts about Craig Wright:
  1. In the early 1990s, worked as a sauce cook at a French restaurant.
  2. Wright filed about 114 Blockchain-related patents since 2017
  3. Craig Wright has his own companies, for example, the Tulip Trading company, which has been very successful in developing supercomputers, as well as DeMorgan Ltd and Panopticrypt Pty Ltd, engaged in various operations with cryptocurrencies. But Wright’s main project is, of course, his own Bitcoin SV (Satoshi Vision), which appeared as a result of the fork of Bitcoin Cash in November 2018. The fork’s reason was the dissatisfaction of developers and miners with a size of the blockchain that was originally written in code. Transactions were processed very slowly, so Bitcoin Cash ABC appeared, where the size was increased to 8 megabytes. But this was not enough for Craig Wright, and he initiated the second fork, setting the block size to 128 megabytes in the currency he was in charge of.
  4. In February 2018 Wright was sued by David Kleiman — a computer scientist and cyber-security expert suspected to be one of the developers behind the Bitcoin and the blockchain tech. Kleiman said that Wright stole between 550,000 and 1,100,000 BTC.
  5. In 2018, Craig Wright was sued, accusing him of forging contracts and signatures in order to assign Bitcoins in the amount of $5 billion.
  6. In October 2017, Cointelegraph published a list of the most influential individuals from the blockchain industry. Not finding his name in it, Craig Wright appealed to the media with a comment about their negative mood regarding his personality. At the same time in the Cointelegraph ranking was the name Satoshi Nakamoto. This situation was noted as Wright’s recognition that he is not the creator of Bitcoin.
  7. Craig is suspected of repeatedly conducting operations to cash large amounts of BTC. During one of the checks, he brought the family from his native Sydney and moved to London to continue working and creating his own business.
What do you think about Craig Wright? Write your opinion in the comments below!
Like and share this article if you find it useful. Want more interesting articles on the crypto world? Follow us onMedium,Twitter, Facebook, and Reddit to get Stealthex.io updates and the latest news about the crypto world. For all requests message us at [[email protected]](mailto:[email protected]).
submitted by Stealthex_io to BitcoinAUS [link] [comments]

Craig Wright: The Real Satoshi Or The Real Scammer

Today we will focus on Craig Wright, the person who took the liberty to declare himself as true Satoshi Nakamoto and who tries to take all the credit of the creator of Bitcoin, the main cryptocurrency.
Bitcoin is considered to be one of the progressive forms of payments — absolutely transparent, distributed and resistant to external influence. Its creator must be at least a genius, and most importantly, a billionaire — because a significant amount of Bitcoins mined in the early stages of the project is concentrated in his hands. It is known that Satoshi Nakamoto retired from the project around 2010 and no one knows exactly who is he really is.
In December 2015, two American publications — Gizmodo and Wired — published huge investigations aimed at finding a man who has been hiding under the name of Satoshi Nakamoto since 2008. Clues led journalists to Craig Wright, a 45-year-old entrepreneur from Australia, which on many grounds could be reckoned as a true Satoshi. For example, there were publications about the ideas of a decentralized payment system similar to Bitcoin in Wright’s blog in 2008, a year before Satoshi Nakamoto himself created BTC. Another interesting fact is that in 2013 he invested more than one million BTC in the project to create his Bitcoin Bank — supposedly only the creator of Bitcoin could own such amount of coins.
In correspondence with the publications, Craig indirectly confirmed that he is Nakamoto. At the same time, in December, 2015, Wright said that he was not going to talk about himself publicly. But almost six months later Craig Wright appeared on the front pages. Unexpectedly for many, Craig decides to give an interview to the BBC and The Economist, in which once again, but already publicly assures that he is Satoshi Nakamoto. As the main proof, Wright provided a “cryptographic signature” from the private key used in the first Bitcoin transactions by Satoshi Nakamoto himself.
Since then, Dr. Wright did not give up his words and continued to tell everyone that he is Satoshi. Later Craig said that he would sue anyone who slanders him and generally denies his merits in the creation of Bitcoin.
And while he was just talking around declaring himself as the creator of BTC — all this was tolerated and ignored. But when Wright began to threaten all who disagreed with his lies, the crypto-community decided to teach him a lesson.
Binance CEO Changpeng Zhao wrote the following on his Twitter:
“Craig Wright is not Satoshi. Anymore of this sh!t, we delist!”
His example was followed by some other exchanges, like ShapeShift and Kraken, which also announced the delisting of BSV.
Blogger and ex-hacker Nik Cubrilovic and cybersecurity researcher Dan Kaminsky published their own investigations in which Wright is exposed as a great deceiver. Enthusiasts also investigated the activities of Wright and his companies. It turned out that the purpose of the existence of many of them was to draw tax refunds and the operation of other benefits that are provided to companies focused on research activities.
When an entrepreneur’s business started to decline and companies have earned an unpleasant reputation, Wright decides to appear before the public as Satoshi Nakamoto. According to Cubrilovic’s opinion, this could improve Craig’s affairs, attract new investments and add excitement since it is known that Nakamoto owns large amounts of Bitcoins.
Craig’s opponents also notice one detail: Satoshi Nakamoto would certainly stand on the side of the Bitcoin community that would like to leave the BTC system in its original form. However, in a conversation with The Economist Wright drew a different picture: if Bitcoin power can be repeatedly scaled, then it will be able to replace not only all banking systems but many others, becoming a truly mainstream currency.
In this case, the regulation and support of such cryptocurrency would have to be taken up by large organizations — from banks, already interested in using blockchain technology, to entire states. If this happens, Bitcoin will really replace conventional currency but will lose its independence — the main reason for its creation.
Here are some interesting facts about Craig Wright:
  1. In the early 1990s, worked as a sauce cook at a French restaurant.
  2. Wright filed about 114 Blockchain-related patents since 2017
  3. Craig Wright has his own companies, for example, the Tulip Trading company, which has been very successful in developing supercomputers, as well as DeMorgan Ltd and Panopticrypt Pty Ltd, engaged in various operations with cryptocurrencies. But Wright’s main project is, of course, his own Bitcoin SV (Satoshi Vision), which appeared as a result of the fork of Bitcoin Cash in November 2018. The fork’s reason was the dissatisfaction of developers and miners with a size of the blockchain that was originally written in code. Transactions were processed very slowly, so Bitcoin Cash ABC appeared, where the size was increased to 8 megabytes. But this was not enough for Craig Wright, and he initiated the second fork, setting the block size to 128 megabytes in the currency he was in charge of.
  4. In February 2018 Wright was sued by David Kleiman — a computer scientist and cyber-security expert suspected to be one of the developers behind the Bitcoin and the blockchain tech. Kleiman said that Wright stole between 550,000 and 1,100,000 BTC.
  5. In 2018, Craig Wright was sued, accusing him of forging contracts and signatures in order to assign Bitcoins in the amount of $5 billion.
  6. In October 2017, Cointelegraph published a list of the most influential individuals from the blockchain industry. Not finding his name in it, Craig Wright appealed to the media with a comment about their negative mood regarding his personality. At the same time in the Cointelegraph ranking was the name Satoshi Nakamoto. This situation was noted as Wright’s recognition that he is not the creator of Bitcoin.
  7. Craig is suspected of repeatedly conducting operations to cash large amounts of BTC. During one of the checks, he brought the family from his native Sydney and moved to London to continue working and creating his own business.
What do you think about Craig Wright? Write your opinion in the comments below!
Like and share this article if you find it useful. Want more interesting articles on the crypto world? Follow us onMedium,Twitter, Facebook, and Reddit to get Stealthex.io updates and the latest news about the crypto world. For all requests message us at [[email protected]](mailto:[email protected]).
submitted by Stealthex_io to CryptoMarkets [link] [comments]

How Craig constructed the "message" that he "signed" using Satoshi's key

Craig was a bit clever here. He did not cheat, and did not use modified command line tools. He indeed posted a message signed by Satoshi's key, that validates correctly. This might explain how he fooled a few people. However, that message just so happens to be a hash of an early Bitcoin transaction, not anything proving his identity. Here's how he did it.
First, check out Dan Kaminsky's blogpost for less-stupid instructions and an archive of the files you need (instead of having to transcribe hex from Craig's post). Although Dan concludes that the signature does not validate, that's actually only due to the & vs. && bug in the last bash command. If you run the corrected command, it works:
$ base64 --decode signiture.der > sig.asn1 && openssl dgst -verify sn-pub.pem -signature sig.asn1 sn7-message.txt Verified OK 
What's the signed message? This:
$ xxd sn7-message.txt 00000000: 479f 9dff 0155 c045 da78 4021 7785 5fdb [email protected]!w._. 00000010: 4f0f 396d c0d2 c24f 7376 dd56 e2e6 8b05 O.9m...Osv.V.... 
That's just binary junk. It was really signed by Satoshi though.
We now know that the signature turned out to correspond to a real Bitcoin transaction (credit to JoukeH). Compare its input script with:
$ xxd sig.asn1 00000000: 3045 0221 00c1 2a7d 5497 2f26 d14c b311 0E.!..*}T./&.L.. 00000010: 339b 5122 f8c1 8741 7dde 1e8e fb68 41f5 3.Q"...A}....hA. 00000020: 5c34 220a e002 2066 632c 5cd4 161e fa3a \4"... fc,\....: 00000030: 2837 764e ee9e b849 75dd 54c2 de28 65e9 (7vN...Iu.T..(e. 00000040: 7525 85c5 3e7c ce u%..>|. 
So where did sn7-message.txt come from? To put it together, we need to follow the OP_CHECKSIG documentation. Specifically, the message to be signed is the transaction, but with the input script replaced with the output script of the transaction that sent the coins in the first place, plus the hash type value of '1'.
First we download the two transactions:
$ curl -so send.bin https://webbtc.com/tx/12b5633bad1f9c167d523ad1aa1947b2732a865bf5414eab2f9e5ae5d5c191ba.bin $ curl -so spend.bin https://webbtc.com/tx/828ef3b079f9c23829c56fe86e85b4a69d9e06e5b54ea597eef5fb3ffef509fe.bin 
Then we dike out the script bit from send.bin and insert it into spend.bin, replacing the input script, and append '1' as a 32-bit little endian integer:
$ head -c 41 spend.bin >sig_txn.bin $ dd if=send.bin bs=1 skip=204 count=68 status=none >>sig_txn.bin $ tail -c 161 spend.bin >>sig_txn.bin $ echo -ne '\x01\x00\x00\x00' >>sig_txn.bin 
Take the SHA-256 hash and there you go:
$ sha256sum sig_txn.bin 479f9dff0155c045da78402177855fdb4f0f396dc0d2c24f7376dd56e2e68b05 sig_txn.bin 
You can also validate this against the Signature Hash field in webbtc's script debug view. Bitcoin actually does a double SHA-256 here, once as part of the protocol, and once as part of the elliptic curve code. So apply sha256sum again:
$ sha256sum sn7-message.txt 3ec9cbc0d1aa849c16a1b276b246e057e7232b21926e428cc09b692c14336f44 sn7-message.txt 
... and you get the Signature Hash.
Interestingly, the source address of this transaction (the bit cut out from send.bin) is the same as in the example on the OP_CHECKSIG documentation wiki page - so he was too lazy even to pick another address, although he picked a different spend transaction.
This is what us security guys call a replay attack. Well played, Craig.
Edits: links and spelling.
Edit2: to make it clear, as bedstefar points out, this doesn't prove that Craig is not Satoshi. It only proves that his blog post doesn't prove that he is Satoshi, and anyone could've written a similar blog post.
Edit3: the blog post does claim that the (incompletely displayed, unverifiable) Sartre text hashes to the same hash as my sig_txn.bin. That much is obviously a lie and patent nonsense, unless you believe he's the first person in the world to come up with a SHA-256 preimage attack. He didn't have to doctor any screenshots or tools for that, the lie is that where he says "The contents of this file have been displayed in the figure below." he's displaying the contents of a different file.
Edit4: Wow, thanks for the gold!
submitted by marcan42 to Bitcoin [link] [comments]

Craig Wright: The Real Satoshi Or The Real Scammer

Today we will focus on Craig Wright, the person who took the liberty to declare himself as true Satoshi Nakamoto and who tries to take all the credit of the creator of Bitcoin, the main cryptocurrency.
Bitcoin is considered to be one of the progressive forms of payments — absolutely transparent, distributed and resistant to external influence. Its creator must be at least a genius, and most importantly, a billionaire — because a significant amount of Bitcoins mined in the early stages of the project is concentrated in his hands. It is known that Satoshi Nakamoto retired from the project around 2010 and no one knows exactly who is he really is.
In December 2015, two American publications — Gizmodo and Wired — published huge investigations aimed at finding a man who has been hiding under the name of Satoshi Nakamoto since 2008. Clues led journalists to Craig Wright, a 45-year-old entrepreneur from Australia, which on many grounds could be reckoned as a true Satoshi. For example, there were publications about the ideas of a decentralized payment system similar to Bitcoin in Wright’s blog in 2008, a year before Satoshi Nakamoto himself created BTC. Another interesting fact is that in 2013 he invested more than one million BTC in the project to create his Bitcoin Bank — supposedly only the creator of Bitcoin could own such amount of coins.
In correspondence with the publications, Craig indirectly confirmed that he is Nakamoto. At the same time, in December, 2015, Wright said that he was not going to talk about himself publicly. But almost six months later Craig Wright appeared on the front pages. Unexpectedly for many, Craig decides to give an interview to the BBC and The Economist, in which once again, but already publicly assures that he is Satoshi Nakamoto. As the main proof, Wright provided a “cryptographic signature” from the private key used in the first Bitcoin transactions by Satoshi Nakamoto himself.
Since then, Dr. Wright did not give up his words and continued to tell everyone that he is Satoshi. Later Craig said that he would sue anyone who slanders him and generally denies his merits in the creation of Bitcoin.
And while he was just talking around declaring himself as the creator of BTC — all this was tolerated and ignored. But when Wright began to threaten all who disagreed with his lies, the crypto-community decided to teach him a lesson.
Binance CEO Changpeng Zhao wrote the following on his Twitter:
“Craig Wright is not Satoshi. Anymore of this sh!t, we delist!”
His example was followed by some other exchanges, like ShapeShift and Kraken, which also announced the delisting of BSV.
Blogger and ex-hacker Nik Cubrilovic and cybersecurity researcher Dan Kaminsky published their own investigations in which Wright is exposed as a great deceiver. Enthusiasts also investigated the activities of Wright and his companies. It turned out that the purpose of the existence of many of them was to draw tax refunds and the operation of other benefits that are provided to companies focused on research activities.
When an entrepreneur’s business started to decline and companies have earned an unpleasant reputation, Wright decides to appear before the public as Satoshi Nakamoto. According to Cubrilovic’s opinion, this could improve Craig’s affairs, attract new investments and add excitement since it is known that Nakamoto owns large amounts of Bitcoins.
Craig’s opponents also notice one detail: Satoshi Nakamoto would certainly stand on the side of the Bitcoin community that would like to leave the BTC system in its original form. However, in a conversation with The Economist Wright drew a different picture: if Bitcoin power can be repeatedly scaled, then it will be able to replace not only all banking systems but many others, becoming a truly mainstream currency.
In this case, the regulation and support of such cryptocurrency would have to be taken up by large organizations — from banks, already interested in using blockchain technology, to entire states. If this happens, Bitcoin will really replace conventional currency but will lose its independence — the main reason for its creation.
Here are some interesting facts about Craig Wright:
  1. In the early 1990s, worked as a sauce cook at a French restaurant.
  2. Wright filed about 114 Blockchain-related patents since 2017
  3. Craig Wright has his own companies, for example, the Tulip Trading company, which has been very successful in developing supercomputers, as well as DeMorgan Ltd and Panopticrypt Pty Ltd, engaged in various operations with cryptocurrencies. But Wright’s main project is, of course, his own Bitcoin SV (Satoshi Vision), which appeared as a result of the fork of Bitcoin Cash in November 2018. The fork’s reason was the dissatisfaction of developers and miners with a size of the blockchain that was originally written in code. Transactions were processed very slowly, so Bitcoin Cash ABC appeared, where the size was increased to 8 megabytes. But this was not enough for Craig Wright, and he initiated the second fork, setting the block size to 128 megabytes in the currency he was in charge of.
  4. In February 2018 Wright was sued by David Kleiman — a computer scientist and cyber-security expert suspected to be one of the developers behind the Bitcoin and the blockchain tech. Kleiman said that Wright stole between 550,000 and 1,100,000 BTC.
  5. In 2018, Craig Wright was sued, accusing him of forging contracts and signatures in order to assign Bitcoins in the amount of $5 billion.
  6. In October 2017, Cointelegraph published a list of the most influential individuals from the blockchain industry. Not finding his name in it, Craig Wright appealed to the media with a comment about their negative mood regarding his personality. At the same time in the Cointelegraph ranking was the name Satoshi Nakamoto. This situation was noted as Wright’s recognition that he is not the creator of Bitcoin.
  7. Craig is suspected of repeatedly conducting operations to cash large amounts of BTC. During one of the checks, he brought the family from his native Sydney and moved to London to continue working and creating his own business.
What do you think about Craig Wright? Write your opinion in the comments below!
Like and share this article if you find it useful. Want more interesting articles on the crypto world? Follow us onMedium,Twitter, Facebook, and Reddit to get Stealthex.io updates and the latest news about the crypto world. For all requests message us at [[email protected]](mailto:[email protected]).
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Craig Wright: The Real Satoshi Or The Real Scammer

Today we will focus on Craig Wright, the person who took the liberty to declare himself as true Satoshi Nakamoto and who tries to take all the credit of the creator of Bitcoin, the main cryptocurrency.
Bitcoin is considered to be one of the progressive forms of payments — absolutely transparent, distributed and resistant to external influence. Its creator must be at least a genius, and most importantly, a billionaire — because a significant amount of Bitcoins mined in the early stages of the project is concentrated in his hands. It is known that Satoshi Nakamoto retired from the project around 2010 and no one knows exactly who is he really is.
In December 2015, two American publications — Gizmodo and Wired — published huge investigations aimed at finding a man who has been hiding under the name of Satoshi Nakamoto since 2008. Clues led journalists to Craig Wright, a 45-year-old entrepreneur from Australia, which on many grounds could be reckoned as a true Satoshi. For example, there were publications about the ideas of a decentralized payment system similar to Bitcoin in Wright’s blog in 2008, a year before Satoshi Nakamoto himself created BTC. Another interesting fact is that in 2013 he invested more than one million BTC in the project to create his Bitcoin Bank — supposedly only the creator of Bitcoin could own such amount of coins.
In correspondence with the publications, Craig indirectly confirmed that he is Nakamoto. At the same time, in December, 2015, Wright said that he was not going to talk about himself publicly. But almost six months later Craig Wright appeared on the front pages. Unexpectedly for many, Craig decides to give an interview to the BBC and The Economist, in which once again, but already publicly assures that he is Satoshi Nakamoto. As the main proof, Wright provided a “cryptographic signature” from the private key used in the first Bitcoin transactions by Satoshi Nakamoto himself.
Since then, Dr. Wright did not give up his words and continued to tell everyone that he is Satoshi. Later Craig said that he would sue anyone who slanders him and generally denies his merits in the creation of Bitcoin.
And while he was just talking around declaring himself as the creator of BTC — all this was tolerated and ignored. But when Wright began to threaten all who disagreed with his lies, the crypto-community decided to teach him a lesson.
Binance CEO Changpeng Zhao wrote the following on his Twitter:
“Craig Wright is not Satoshi. Anymore of this sh!t, we delist!”
His example was followed by some other exchanges, like ShapeShift and Kraken, which also announced the delisting of BSV.
Blogger and ex-hacker Nik Cubrilovic and cybersecurity researcher Dan Kaminsky published their own investigations in which Wright is exposed as a great deceiver. Enthusiasts also investigated the activities of Wright and his companies. It turned out that the purpose of the existence of many of them was to draw tax refunds and the operation of other benefits that are provided to companies focused on research activities.
When an entrepreneur’s business started to decline and companies have earned an unpleasant reputation, Wright decides to appear before the public as Satoshi Nakamoto. According to Cubrilovic’s opinion, this could improve Craig’s affairs, attract new investments and add excitement since it is known that Nakamoto owns large amounts of Bitcoins.
Craig’s opponents also notice one detail: Satoshi Nakamoto would certainly stand on the side of the Bitcoin community that would like to leave the BTC system in its original form. However, in a conversation with The Economist Wright drew a different picture: if Bitcoin power can be repeatedly scaled, then it will be able to replace not only all banking systems but many others, becoming a truly mainstream currency.
In this case, the regulation and support of such cryptocurrency would have to be taken up by large organizations — from banks, already interested in using blockchain technology, to entire states. If this happens, Bitcoin will really replace conventional currency but will lose its independence — the main reason for its creation.
Here are some interesting facts about Craig Wright:
  1. In the early 1990s, worked as a sauce cook at a French restaurant.
  2. Wright filed about 114 Blockchain-related patents since 2017
  3. Craig Wright has his own companies, for example, the Tulip Trading company, which has been very successful in developing supercomputers, as well as DeMorgan Ltd and Panopticrypt Pty Ltd, engaged in various operations with cryptocurrencies. But Wright’s main project is, of course, his own Bitcoin SV (Satoshi Vision), which appeared as a result of the fork of Bitcoin Cash in November 2018. The fork’s reason was the dissatisfaction of developers and miners with a size of the blockchain that was originally written in code. Transactions were processed very slowly, so Bitcoin Cash ABC appeared, where the size was increased to 8 megabytes. But this was not enough for Craig Wright, and he initiated the second fork, setting the block size to 128 megabytes in the currency he was in charge of.
  4. In February 2018 Wright was sued by David Kleiman — a computer scientist and cyber-security expert suspected to be one of the developers behind the Bitcoin and the blockchain tech. Kleiman said that Wright stole between 550,000 and 1,100,000 BTC.
  5. In 2018, Craig Wright was sued, accusing him of forging contracts and signatures in order to assign Bitcoins in the amount of $5 billion.
  6. In October 2017, Cointelegraph published a list of the most influential individuals from the blockchain industry. Not finding his name in it, Craig Wright appealed to the media with a comment about their negative mood regarding his personality. At the same time in the Cointelegraph ranking was the name Satoshi Nakamoto. This situation was noted as Wright’s recognition that he is not the creator of Bitcoin.
  7. Craig is suspected of repeatedly conducting operations to cash large amounts of BTC. During one of the checks, he brought the family from his native Sydney and moved to London to continue working and creating his own business.
What do you think about Craig Wright? Write your opinion in the comments below!
Like and share this article if you find it useful. Want more interesting articles on the crypto world? Follow us on Medium,Twitter, Facebook, and Reddit to get Stealthex.io updates and the latest news about the crypto world. For all requests message us at [[email protected]](mailto:[email protected]).
submitted by Stealthex_io to Anarcho_Capitalism [link] [comments]

Bitcoin - An Analysis [28C3] 2014 Pantera Bitcoin Conference - Dan Kaminsky How to hack Bitcoin - Cracking CryptoCurrency Brainwallets Earn 180$ To 223$ On Bitcoin Per Day Dan Kaminsky Interview Part III

Dan Kaminsky: No one should be surprised if a cyber attack succeeds somewhere. Everything can be hacked. I assume that all large companies are confronted somehow with hackers in their systems, and in national systems, successful intrusions have increased. The United States, e.g., have recently lost sensitive data of people with “top security” access to state secrets to Chinese hackers. Dan Kaminsky On Bitcoin's Highlights And Flaws. I failed. This was very exciting. It is a fairly open secret that almost all systems can be hacked, somehow.. It is a less spoken of secret that ... #### Dan Kaminsky ##### About. A noted security researcher, Dan Kaminsky has advised Fortune 500 companies such as Cisco and Avaya; worked for Microsoft; and is currently developing systems to ... Ever since BitCoin appeared, I’ve been waiting for two security experts to venture detailed opinions on it: Dan Kaminsky and Ben Laurie. Dan has now weighed in, with a long, thoughtful piece … But for those with an open mind, moving a few chunks of the so-called “bitcoin billion” should be proof enough, says Dan Kaminsky, a well-known security researcher with a history of bitcoin analysis. Even the theory that Wright might have somehow hacked Nakamoto’s computer hardly discounts that proof, Kaminsky argues. “Every computer can be hacked. But if he hacked Satoshi, then this g

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Bitcoin - An Analysis [28C3]

Peter Silva of F5 finishes his chat with IOActive's Dan Kaminsky. Please see Part 1 for complete description. In this segment, DNSSEC conversation continues and Dan explains what's happened since ... dan kaminsky free bitcoin generator 2014 bitcoin generator password bitcoin tools how to hack bitcoin get free bitcoins 2013 hack free bitcoin wallet dat download free bitcoins download get one ... More recently, he co-spoke with Dan Kaminsky at DEF CON 22 and was a finalist in the 2014 Underhanded Crypto Contest. For his day job at White Ops, he finds new and exciting ways to tease out the ... DEF CON 23 - Dan Kaminsky - I Want These * Bugs off My * Internet - Duration: 48:09. DEFCONConference 62,242 views. 48:09 . How to Prepare for the Future and Avoid Being Caught the Crash - Robert ... Dan Kaminski: "En internet hay siete llaves de seguridad y yo tengo una de ellas" - Duration: 6:17. El Futuro Es Apasionante de Vodafone Recommended for you 6:17

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