📅 Original date posted:2014-07-19 📝 Original message:Hey all, I'm wondering if ...

Richard Moore [ARCHIVE] /

npub1rxq…etyf

2023-06-07 15:24:17

in reply to nevent1q…vqcp

📅 Original date posted:2014-07-19
📝 Original message:Hey all,

I'm wondering if anyone can help explain to me tx 70f7c15c6f62139cc41afa858894650344eda9975b46656d893ee59df8914a3d...

(https://blockchain.info/tx/70f7c15c6f62139cc41afa858894650344eda9975b46656d893ee59df8914a3d)

The input signature script is:

304402206b5c3b1c86748dcf328b9f3a65e10085afcf5d1af5b40970d8ce3a9355e06b5b0220cdbdc23e6d3618e47056fccc60c5f73d1a542186705197e5791e97f0e6582a3201

Which decodes to:

r= 48560432700441876832361368709121298776045893858160378595187765610521057848155
s= -22732680560694206332190468058638664750027418114195068375538144640549433890254

(http://lapo.it/asn1js/#304402206B5C3B1C86748DCF328B9F3A65E10085AFCF5D1AF5B40970D8CE3A9355E06B5B0220CDBDC23E6D3618E47056FCCC60C5F73D1A542186705197E5791E97F0E6582A32)

The ECC library I'm using is failing to verify this, which I think makes sense, since I the point needs to be positive, no? But it is obviously valid, as it has been verified and spent. I have tried simply modulo curve.order to positive-ify it, but that didn't seem to work either. Given a point P (with Py < 0) is there some fancy way to bring it into the elliptic curve space, such that Px >= 0 and Py >= 0?

Thanks!

RicMoo

.·´¯`·.¸¸.·´¯`·.¸¸.·´¯`·.¸¸.·´¯`·.¸¸.·´¯`·.¸><(((º>

Richard Moore ~ Founder
Genetic Mistakes Software inc.
phone: (778) 882-6125
email: ricmoo at geneticmistakes.com
www: http://GeneticMistakes.com

Author Public Key

npub1rxqlcf4n2aw0urx6l4g7rjkyng8d5w0lkqphnaycrchyh3dwktzsejetyf

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Published at

2023-06-07 15:24:17

Kind type

1 Short Text Note

Event JSON

{ "id": "b0537b5459d29de81e5ad649d5fb6cfbed7bc6d4139c80bbb40534fdec2bc175", "pubkey": "1981fc26b3575cfe0cdafd51e1cac49a0eda39ffb00379f4981e2e4bc5aeb2c5", "created_at": 1686151457, "kind": 1, "tags": [ [ "e", "4f25a31dcd63865dc9cd1af2681ad13307f00cab0c024388cf97e57a179adde5", "", "reply" ], [ "p", "a23dbf6c6cc83e14cc3df4e56cc71845f611908084cfe620e83e40c06ccdd3d0" ] ], "content": "📅 Original date posted:2014-07-19\n📝 Original message:Hey all,\n\nI'm wondering if anyone can help explain to me tx 70f7c15c6f62139cc41afa858894650344eda9975b46656d893ee59df8914a3d...\n\n(https://blockchain.info/tx/70f7c15c6f62139cc41afa858894650344eda9975b46656d893ee59df8914a3d)\n\n\nThe input signature script is:\n\n304402206b5c3b1c86748dcf328b9f3a65e10085afcf5d1af5b40970d8ce3a9355e06b5b0220cdbdc23e6d3618e47056fccc60c5f73d1a542186705197e5791e97f0e6582a3201 \n\n\nWhich decodes to:\n\nr= 48560432700441876832361368709121298776045893858160378595187765610521057848155\ns= -22732680560694206332190468058638664750027418114195068375538144640549433890254\n\n(http://lapo.it/asn1js/#304402206B5C3B1C86748DCF328B9F3A65E10085AFCF5D1AF5B40970D8CE3A9355E06B5B0220CDBDC23E6D3618E47056FCCC60C5F73D1A542186705197E5791E97F0E6582A32)\n\n\nThe ECC library I'm using is failing to verify this, which I think makes sense, since I the point needs to be positive, no? But it is obviously valid, as it has been verified and spent. I have tried simply modulo curve.order to positive-ify it, but that didn't seem to work either. Given a point P (with Py \u003c 0) is there some fancy way to bring it into the elliptic curve space, such that Px \u003e= 0 and Py \u003e= 0?\n\nThanks!\n\nRicMoo\n\n\n.·´¯`·.¸¸.·´¯`·.¸¸.·´¯`·.¸¸.·´¯`·.¸¸.·´¯`·.¸\u003e\u003c(((º\u003e\n\nRichard Moore ~ Founder\nGenetic Mistakes Software inc.\nphone: (778) 882-6125\nemail: ricmoo at geneticmistakes.com\nwww: http://GeneticMistakes.com", "sig": "7ba5750868ff774f7e2ceb89ee7416c22aab039b4bdfd1cb3a43b82d9f3fa9e8a3fd494be70f28256ba4f7fe16f27b647f0d1bce102600c3f96e558345b13b7b" }