📅 Original date posted:2016-05-20
📝 Original message:Using the hash of multiple blocks does not make it any safer. The miner of the last block always determines the results, by knowing the hashes of all previous blocks.
>
> == Security
> Pay-to-script-hash can be used to protect the details of contracts that use OP_PRANDOM from the prying eyes of miners. However, since there is also a non-zero risk that a participant in a contract may attempt to bribe a miner the inclusion of multiple block hashes as a source of randomness is a must. Every miner would effectively need to be bribed to ensure control over the results of the random numbers, which is already very unlikely. The risk approaches zero as N goes up.
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Johnson Lau [ARCHIVE] /
npub1fy…p2mv9
2023-06-07 19:50:54
in reply to nevent1q…y3ye
Author Public Key
npub1fyh6gqhg8zgyhhywkty047s64z2a7fjr307enrr3kqwtnk64plmsup2mv9Published at
2023-06-07 19:50:54Event JSON
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"content": "📅 Original date posted:2016-05-20\n📝 Original message:Using the hash of multiple blocks does not make it any safer. The miner of the last block always determines the results, by knowing the hashes of all previous blocks.\n\n\u003e \n\u003e == Security\n\u003e Pay-to-script-hash can be used to protect the details of contracts that use OP_PRANDOM from the prying eyes of miners. However, since there is also a non-zero risk that a participant in a contract may attempt to bribe a miner the inclusion of multiple block hashes as a source of randomness is a must. Every miner would effectively need to be bribed to ensure control over the results of the random numbers, which is already very unlikely. The risk approaches zero as N goes up.\n\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20160520/18fa58d6/attachment.html\u003e",
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