📅 Original date posted:2012-07-29
📝 Original message:I was baffled by this exact script, too. :)
Big props to Gavin for adding those data-driven test cases. I can't
overstate how useful they are.
Is there interest to port more tests (P2SH, checksig, checkmultisig,
block verification, maybe even DoS rules) into data-driven format? It
might be something that I'd like to help with if pull requests in that
direction are welcome.
On 7/29/2012 6:42 PM, Amir Taaki wrote:
> oh, bitcoin...
>
> Thanks justmoon :D
>
>
>
> ----- Original Message -----
> From: Stefan Thomas <moon at justmoon.de>
> To: bitcoin-development at lists.sourceforge.net
> Cc:
> Sent: Sunday, July 29, 2012 1:33 PM
> Subject: Re: [Bitcoin-development] script tests - invalid script in script_valid.json?
>
> OP_WITHIN is lower-bound-inclusive, but upper bound exclusive, so 1 0 1 WITHIN is false.
>
>
> bool fValue = (bn2 <= bn1 && bn1 < bn3);
>
> https://github.com/bitcoin/bitcoin/blob/master/src/script.cpp#L854
>
> On 7/29/2012 6:31 PM, Amir Taaki wrote:
>> Hi!
>>
>> Is this a valid script?
>>
>> ["1 0 1", "WITHIN NOT"]
>>
>> The first value (1) is tested to make sure it is between the lower (0) and upper (1) value. This evaluates to true, placing on the stack a single byte of [01]. NOT then inverses this to a 0 byte false value of [].
>>
>> What am I missing here?
>>
>> Thanks
>>
>> ------------------------------------------------------------------------------
>> Live Security Virtual Conference
>> Exclusive live event will cover all the ways today's security and
>> threat landscape has changed and how IT managers can respond. Discussions
>> will include endpoint security, mobile security and the latest in malware
>> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
>> _______________________________________________
>> Bitcoin-development mailing list
>> Bitcoin-development at lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/bitcoin-development
>>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> _______________________________________________
> Bitcoin-development mailing list
> Bitcoin-development at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bitcoin-development
>
>
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and
> threat landscape has changed and how IT managers can respond. Discussions
> will include endpoint security, mobile security and the latest in malware
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> _______________________________________________
> Bitcoin-development mailing list
> Bitcoin-development at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bitcoin-development
>
Stefan Thomas [ARCHIVE] /
npub1f8…ap20e
2023-06-07 10:26:47
in reply to nevent1q…yzwn
Author Public Key
npub1f8c8h5evqyy29yp6p7jelyzw6vfwp6jz05exn66l4ygwkj57ytzqmap20ePublished at
2023-06-07 10:26:47Event JSON
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"pubkey": "49f07bd32c0108a2903a0fa59f904ed312e0ea427d3269eb5fa910eb4a9e22c4",
"created_at": 1686133607,
"kind": 1,
"tags": [
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"content": "📅 Original date posted:2012-07-29\n📝 Original message:I was baffled by this exact script, too. :)\n\nBig props to Gavin for adding those data-driven test cases. I can't\noverstate how useful they are.\n\nIs there interest to port more tests (P2SH, checksig, checkmultisig,\nblock verification, maybe even DoS rules) into data-driven format? It\nmight be something that I'd like to help with if pull requests in that\ndirection are welcome.\n\nOn 7/29/2012 6:42 PM, Amir Taaki wrote:\n\u003e oh, bitcoin...\n\u003e\n\u003e Thanks justmoon :D\n\u003e\n\u003e\n\u003e\n\u003e ----- Original Message -----\n\u003e From: Stefan Thomas \u003cmoon at justmoon.de\u003e\n\u003e To: bitcoin-development at lists.sourceforge.net\n\u003e Cc: \n\u003e Sent: Sunday, July 29, 2012 1:33 PM\n\u003e Subject: Re: [Bitcoin-development] script tests - invalid script in script_valid.json?\n\u003e\n\u003e OP_WITHIN is lower-bound-inclusive, but upper bound exclusive, so 1 0 1 WITHIN is false.\n\u003e\n\u003e\n\u003e bool fValue = (bn2 \u003c= bn1 \u0026\u0026 bn1 \u003c bn3);\n\u003e\n\u003e https://github.com/bitcoin/bitcoin/blob/master/src/script.cpp#L854\n\u003e\n\u003e On 7/29/2012 6:31 PM, Amir Taaki wrote:\n\u003e\u003e Hi!\n\u003e\u003e\n\u003e\u003e Is this a valid script?\n\u003e\u003e\n\u003e\u003e [\"1 0 1\", \"WITHIN NOT\"]\n\u003e\u003e\n\u003e\u003e The first value (1) is tested to make sure it is between the lower (0) and upper (1) value. This evaluates to true, placing on the stack a single byte of [01]. NOT then inverses this to a 0 byte false value of [].\n\u003e\u003e\n\u003e\u003e What am I missing here?\n\u003e\u003e\n\u003e\u003e Thanks\n\u003e\u003e\n\u003e\u003e ------------------------------------------------------------------------------\n\u003e\u003e Live Security Virtual Conference\n\u003e\u003e Exclusive live event will cover all the ways today's security and \n\u003e\u003e threat landscape has changed and how IT managers can respond. Discussions \n\u003e\u003e will include endpoint security, mobile security and the latest in malware \n\u003e\u003e threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/\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\n\u003e ------------------------------------------------------------------------------\n\u003e Live Security Virtual Conference\n\u003e Exclusive live event will cover all the ways today's security and \n\u003e threat landscape has changed and how IT managers can respond. Discussions \n\u003e will include endpoint security, mobile security and the latest in malware \n\u003e threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/\n\u003e _______________________________________________\n\u003e Bitcoin-development mailing list\n\u003e Bitcoin-development at lists.sourceforge.net\n\u003e https://lists.sourceforge.net/lists/listinfo/bitcoin-development\n\u003e\n\u003e\n\u003e ------------------------------------------------------------------------------\n\u003e Live Security Virtual Conference\n\u003e Exclusive live event will cover all the ways today's security and \n\u003e threat landscape has changed and how IT managers can respond. Discussions \n\u003e will include endpoint security, mobile security and the latest in malware \n\u003e threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/\n\u003e _______________________________________________\n\u003e Bitcoin-development mailing list\n\u003e Bitcoin-development at lists.sourceforge.net\n\u003e https://lists.sourceforge.net/lists/listinfo/bitcoin-development\n\u003e",
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