Skip to content

Poseidon2 spec: fix round constants #6

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
tcoratger merged 3 commits into from
Aug 25, 2025
Merged

Poseidon2 spec: fix round constants #6

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
d23c79b
Poseidon2 spec: fix round constants
tcoratger Aug 9, 2025
441737f
cleanup
tcoratger Aug 9, 2025
7e86783
update constants
tcoratger Aug 19, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
380 changes: 380 additions & 0 deletions src/lean_spec/subspecs/poseidon2/constants.py
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,380 @@
"""Round constants for the Poseidon2 permutation over the KoalaBear field."""

from typing import List

from ..koalabear.field import Fp

_RAW_CONSTANTS_16: List[int] = [
2128964168,
288780357,
316938561,
2126233899,
426817493,
1714118888,
1045008582,
1738510837,
889721787,
8866516,
681576474,
419059826,
1596305521,
1583176088,
1584387047,
1529751136,
1863858111,
1072044075,
517831365,
1464274176,
1138001621,
428001039,
245709561,
1641420379,
1365482496,
770454828,
693167409,
757905735,
136670447,
436275702,
525466355,
1559174242,
1030087950,
869864998,
322787870,
267688717,
948964561,
740478015,
679816114,
113662466,
2066544572,
1744924186,
367094720,
1380455578,
1842483872,
416711434,
1342291586,
1692058446,
1493348999,
1113949088,
210900530,
1071655077,
610242121,
1136339326,
2020858841,
1019840479,
678147278,
1678413261,
1361743414,
61132629,
1209546658,
64412292,
1936878279,
1980661727,
1423960925,
2101391318,
1915532054,
275400051,
1168624859,
1141248885,
356546469,
1165250474,
1320543726,
932505663,
1204226364,
1452576828,
1774936729,
926808140,
1184948056,
1186493834,
843181003,
185193011,
452207447,
510054082,
1139268644,
630873441,
669538875,
462500858,
876500520,
1214043330,
383937013,
375087302,
636912601,
307200505,
390279673,
1999916485,
1518476730,
1606686591,
1410677749,
1581191572,
1004269969,
143426723,
1747283099,
1016118214,
1749423722,
66331533,
1177761275,
1581069649,
1851371119,
852520128,
1499632627,
1820847538,
150757557,
884787840,
619710451,
1651711087,
505263814,
212076987,
1482432120,
1458130652,
382871348,
417404007,
2066495280,
1996518884,
902934924,
582892981,
1337064375,
1199354861,
2102596038,
1533193853,
1436311464,
2012303432,
839997195,
1225781098,
2011967775,
575084315,
1309329169,
786393545,
995788880,
1702925345,
1444525226,
908073383,
1811535085,
1531002367,
1635653662,
1585100155,
867006515,
879151050,
]

_RAW_CONSTANTS_24: List[int] = [
487143900,
1829048205,
1652578477,
646002781,
1044144830,
53279448,
1519499836,
22697702,
1768655004,
230479744,
1484895689,
705130286,
1429811285,
1695785093,
1417332623,
1115801016,
1048199020,
878062617,
738518649,
249004596,
1601837737,
24601614,
245692625,
364803730,
1857019234,
1906668230,
1916890890,
835590867,
557228239,
352829675,
515301498,
973918075,
954515249,
1142063750,
1795549558,
608869266,
1850421928,
2028872854,
1197543771,
1027240055,
1976813168,
963257461,
652017844,
2113212249,
213459679,
90747280,
1540619478,
324138382,
1377377119,
294744504,
512472871,
668081958,
907306515,
518526882,
1907091534,
1152942192,
1572881424,
720020214,
729527057,
1762035789,
86171731,
205890068,
453077400,
1201344594,
986483134,
125174298,
2050269685,
1895332113,
749706654,
40566555,
742540942,
1735551813,
162985276,
1943496073,
1469312688,
703013107,
1979485151,
1278193166,
548674995,
2118718736,
749596440,
1476142294,
1293606474,
918523452,
890353212,
1691895663,
1932240646,
1180911992,
86098300,
1592168978,
895077289,
724819849,
1697986774,
1608418116,
1083269213,
691256798,
328586442,
1572520009,
1375479591,
322991001,
967600467,
1172861548,
1973891356,
1503625929,
1881993531,
40601941,
1155570620,
571547775,
1361622243,
1495024047,
1733254248,
964808915,
763558040,
1887228519,
994888261,
718330940,
213359415,
603124968,
1038411577,
2099454809,
949846777,
630926956,
1168723439,
222917504,
1527025973,
1009157017,
2029957881,
805977836,
1347511739,
540019059,
589807745,
440771316,
1530063406,
761076336,
87974206,
1412686751,
1230318064,
514464425,
1469011754,
1770970737,
1510972858,
965357206,
209398053,
778802532,
40567006,
1984217577,
1545851069,
879801839,
1611910970,
1215591048,
330802499,
1051639108,
321036,
511927202,
591603098,
1775897642,
115598532,
278200718,
233743176,
525096211,
1335507608,
830017835,
1380629279,
560028578,
598425701,
302162385,
567434115,
1859222575,
958294793,
1582225556,
1781487858,
1570246000,
1067748446,
526608119,
1666453343,
1786918381,
348203640,
1860035017,
1489902626,
1904576699,
860033965,
1954077639,
1685771567,
971513929,
1877873770,
137113380,
520695829,
806829080,
1408699405,
1613277964,
793223662,
648443918,
893435011,
403879071,
1363789863,
1662900517,
2043370,
2109755796,
931751726,
2091644718,
606977583,
185050397,
946157136,
1350065230,
1625860064,
122045240,
880989921,
145137438,
1059782436,
1477755661,
335465138,
1640704282,
1757946479,
1551204074,
681266718,
]

# For width 16 (needs 8*16 + 20 = 148 constants).
ROUND_CONSTANTS_16: List[Fp] = [Fp(value=v) for v in _RAW_CONSTANTS_16]

# For width 24 (needs 8*24 + 23 = 215 constants).
ROUND_CONSTANTS_24: List[Fp] = [Fp(value=v) for v in _RAW_CONSTANTS_24]
Loading
Loading