📅 Original date posted:2013-04-01
📝 Original message:On 1 April 2013 20:28, Petr Praus <petr at praus.net> wrote:
> An attacker would have to find a collision between two specific pieces of
> code - his malicious code and a useful innoculous code that would be
> accepted as pull request. This is the second, much harder case in the
> birthday problem. When people talk about SHA-1 being broken they actually
> mean the first case in the birthday problem - find any two arbitrary values
> that hash to the same value. So, no I don't think it's a feasible attack
> vector any time soon.
>
> Besides, with that kind of hashing power, it might be more feasible to
> cause problems in the chain by e.g. constantly splitting it.
>
OK, maybe im being *way* too paranoid here ... but what if someone had
access to github, could they replace one file with one they had prepared at
some point?
>
>
> On 1 April 2013 03:26, Melvin Carvalho <melvincarvalho at gmail.com> wrote:
>
>> I was just looking at:
>>
>> https://bitcointalk.org/index.php?topic=4571.0
>>
>> I'm just curious if there is a possible attack vector here based on the
>> fact that git uses the relatively week SHA1
>>
>> Could a seemingly innocuous pull request generate another file with a
>> backdoor/nonce combination that slips under the radar?
>>
>> Apologies if this has come up before ...
>>
>>
>> ------------------------------------------------------------------------------
>> Own the Future-Intel® Level Up Game Demo Contest 2013
>> Rise to greatness in Intel's independent game demo contest.
>> Compete for recognition, cash, and the chance to get your game
>> on Steam. $5K grand prize plus 10 genre and skill prizes.
>> Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d
>> _______________________________________________
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>> https://lists.sourceforge.net/lists/listinfo/bitcoin-development
>>
>>
>
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Melvin Carvalho [ARCHIVE] /
npub1uv…saxrt
2023-06-07 13:42:37
in reply to nevent1q…22hm
Author Public Key
npub1uvtfvcegcn9kds68r8he57emc480vqtx8t22kpsctxgjxae44gvsksaxrtPublished at
2023-06-07 13:42:37Event JSON
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"content": "📅 Original date posted:2013-04-01\n📝 Original message:On 1 April 2013 20:28, Petr Praus \u003cpetr at praus.net\u003e wrote:\n\n\u003e An attacker would have to find a collision between two specific pieces of\n\u003e code - his malicious code and a useful innoculous code that would be\n\u003e accepted as pull request. This is the second, much harder case in the\n\u003e birthday problem. When people talk about SHA-1 being broken they actually\n\u003e mean the first case in the birthday problem - find any two arbitrary values\n\u003e that hash to the same value. So, no I don't think it's a feasible attack\n\u003e vector any time soon.\n\u003e\n\u003e Besides, with that kind of hashing power, it might be more feasible to\n\u003e cause problems in the chain by e.g. constantly splitting it.\n\u003e\n\nOK, maybe im being *way* too paranoid here ... but what if someone had\naccess to github, could they replace one file with one they had prepared at\nsome point?\n\n\n\u003e\n\u003e\n\u003e On 1 April 2013 03:26, Melvin Carvalho \u003cmelvincarvalho at gmail.com\u003e wrote:\n\u003e\n\u003e\u003e I was just looking at:\n\u003e\u003e\n\u003e\u003e https://bitcointalk.org/index.php?topic=4571.0\n\u003e\u003e\n\u003e\u003e I'm just curious if there is a possible attack vector here based on the\n\u003e\u003e fact that git uses the relatively week SHA1\n\u003e\u003e\n\u003e\u003e Could a seemingly innocuous pull request generate another file with a\n\u003e\u003e backdoor/nonce combination that slips under the radar?\n\u003e\u003e\n\u003e\u003e Apologies if this has come up before ...\n\u003e\u003e\n\u003e\u003e\n\u003e\u003e ------------------------------------------------------------------------------\n\u003e\u003e Own the Future-Intel\u0026reg; Level Up Game Demo Contest 2013\n\u003e\u003e Rise to greatness in Intel's independent game demo contest.\n\u003e\u003e Compete for recognition, cash, and the chance to get your game\n\u003e\u003e on Steam. $5K grand prize plus 10 genre and skill prizes.\n\u003e\u003e Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d\n\u003e\u003e _______________________________________________\n\u003e\u003e Bitcoin-development mailing list\n\u003e\u003e Bitcoin-development at lists.sourceforge.net\n\u003e\u003e https://lists.sourceforge.net/lists/listinfo/bitcoin-development\n\u003e\u003e\n\u003e\u003e\n\u003e\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20130401/073ada84/attachment.html\u003e",
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