1package plonk
  2
  3import (
  4	"math/big"
  5	"testing"
  6
  7	"github.com/consensys/gnark/frontend"
  8	"github.com/consensys/gnark/test"
  9	"github.com/succinctlabs/gnark-plonky2-verifier/field"
 10	"github.com/succinctlabs/gnark-plonky2-verifier/poseidon"
 11)
 12
 13type TestChallengerCircuit struct {
 14	PublicInputs              []field.F
 15	CircuitDigest             poseidon.PoseidonBN128HashOut
 16	WiresCap                  [16]poseidon.PoseidonBN128HashOut
 17	PlonkZsPartialProductsCap [16]poseidon.PoseidonBN128HashOut
 18	QuotientPolysCap          [16]poseidon.PoseidonBN128HashOut
 19}
 20
 21func (circuit *TestChallengerCircuit) Define(api frontend.API) error {
 22	fieldAPI := field.NewFieldAPI(api)
 23	qeAPI := field.NewQuadraticExtensionAPI(api, fieldAPI)
 24	poseidonChip := poseidon.NewPoseidonChip(api, fieldAPI, qeAPI)
 25	poseidonBN128Chip := poseidon.NewPoseidonBN128Chip(api, fieldAPI)
 26	challengerChip := NewChallengerChip(api, fieldAPI, poseidonChip, poseidonBN128Chip)
 27
 28	challengerChip.ObserveBN128Hash(circuit.CircuitDigest)
 29	publicInputHash := poseidonChip.HashNoPad(circuit.PublicInputs[:])
 30	challengerChip.ObserveHash(publicInputHash)
 31	challengerChip.ObserveCap(circuit.WiresCap[:])
 32
 33	numChallenges := uint64(2)
 34	plonkBetas := challengerChip.GetNChallenges(numChallenges)
 35	plonkGammas := challengerChip.GetNChallenges(numChallenges)
 36
 37	expectedPublicInputHash := [4]field.F{
 38		field.NewFieldConstFromString("0"),
 39		field.NewFieldConstFromString("0"),
 40		field.NewFieldConstFromString("0"),
 41		field.NewFieldConstFromString("0"),
 42	}
 43
 44	for i := 0; i < 4; i++ {
 45		fieldAPI.AssertIsEqual(publicInputHash[i], expectedPublicInputHash[i])
 46	}
 47
 48	expectedPlonkBetas := [2]field.F{
 49		field.NewFieldConstFromString("17615363392879944733"),
 50		field.NewFieldConstFromString("9422446877322953047"),
 51	}
 52
 53	expectedPlonkGammas := [2]field.F{
 54		field.NewFieldConstFromString("15174493176564484303"),
 55		field.NewFieldConstFromString("6175150444166239851"),
 56	}
 57
 58	for i := 0; i < 2; i++ {
 59		fieldAPI.AssertIsEqual(plonkBetas[i], expectedPlonkBetas[i])
 60		fieldAPI.AssertIsEqual(plonkGammas[i], expectedPlonkGammas[i])
 61	}
 62
 63	challengerChip.ObserveCap(circuit.PlonkZsPartialProductsCap[:])
 64	plonkAlphas := challengerChip.GetNChallenges(numChallenges)
 65
 66	expectedPlonkAlphas := [2]field.F{
 67		field.NewFieldConstFromString("9276470834414745550"),
 68		field.NewFieldConstFromString("5302812342351431915"),
 69	}
 70
 71	for i := 0; i < 2; i++ {
 72		fieldAPI.AssertIsEqual(plonkAlphas[i], expectedPlonkAlphas[i])
 73	}
 74
 75	challengerChip.ObserveCap(circuit.QuotientPolysCap[:])
 76	plonkZeta := challengerChip.GetExtensionChallenge()
 77
 78	expectedPlonkZeta := field.QuadraticExtension{
 79		field.NewFieldConstFromString("3892795992421241388"),
 80		field.NewFieldConstFromString("15786647757418200302"),
 81	}
 82
 83	for i := 0; i < 2; i++ {
 84		fieldAPI.AssertIsEqual(plonkZeta[i], expectedPlonkZeta[i])
 85	}
 86
 87	return nil
 88}
 89
 90func StringToBN128Hash(hashStr string) poseidon.PoseidonBN128HashOut {
 91	hashBigInt, ok := new(big.Int).SetString(hashStr, 10)
 92	if !(ok) {
 93		panic("Invalid hash: " + hashStr)
 94	}
 95
 96	hashVar := frontend.Variable(*hashBigInt)
 97	return poseidon.PoseidonBN128HashOut(hashVar)
 98}
 99
100func TestChallengerWitness(t *testing.T) {
101	assert := test.NewAssert(t)
102
103	testCase := func(
104		publicInputs []field.F,
105		circuitDigest poseidon.PoseidonBN128HashOut,
106		wiresCap [16]poseidon.PoseidonBN128HashOut,
107		plonkZsPartialProductsCap [16]poseidon.PoseidonBN128HashOut,
108		quotientPolysCap [16]poseidon.PoseidonBN128HashOut,
109	) {
110		circuit := TestChallengerCircuit{
111			PublicInputs:              publicInputs,
112			CircuitDigest:             circuitDigest,
113			WiresCap:                  wiresCap,
114			PlonkZsPartialProductsCap: plonkZsPartialProductsCap,
115			QuotientPolysCap:          quotientPolysCap,
116		}
117		witness := TestChallengerCircuit{
118			PublicInputs:              publicInputs,
119			CircuitDigest:             circuitDigest,
120			WiresCap:                  wiresCap,
121			PlonkZsPartialProductsCap: plonkZsPartialProductsCap,
122			QuotientPolysCap:          quotientPolysCap,
123		}
124		err := test.IsSolved(&circuit, &witness, field.TEST_CURVE.ScalarField())
125		assert.NoError(err)
126	}
127
128	publicInputs := []field.F{}
129
130	circuitDigest := StringToBN128Hash("11532502846882484230992726008257788785937565673229400981185786126842727172973")
131
132	wiresCaps := [16]poseidon.PoseidonBN128HashOut{}
133	wiresCaps[0] = StringToBN128Hash("6232016528318542211523647364792867346449137823066292895075623303633330508214")
134	wiresCaps[1] = StringToBN128Hash("3849229275985461680629770572508259203226163621677714310355251582693130685288")
135	wiresCaps[2] = StringToBN128Hash("5987556171512366759354088598227343740440477791444099795740854232780130336082")
136	wiresCaps[3] = StringToBN128Hash("8523377779888975334090507575349048869294640263235559121841789718805736414837")
137	wiresCaps[4] = StringToBN128Hash("4173305429039088756536564029627250985745421317354666614089039608061166671898")
138	wiresCaps[5] = StringToBN128Hash("19514742808406256372169729907222415291809011606011679387563713660256488346125")
139	wiresCaps[6] = StringToBN128Hash("8519703011007005463193900985655355044586093539828702987016626948657512235078")
140	wiresCaps[7] = StringToBN128Hash("13337062986664638507390757043422262298890182385759661595000247205380836291424")
141	wiresCaps[8] = StringToBN128Hash("13956988298720968721248573872513053256190487207048215310365406791617256823071")
142	wiresCaps[9] = StringToBN128Hash("4139118776078237399422219240136866906229498819930564462151328936368637474741")
143	wiresCaps[10] = StringToBN128Hash("20010683036854145765538326917745039166608941517703057250025522185331298063240")
144	wiresCaps[11] = StringToBN128Hash("16542849340693186579674885260236043503488748690860552251132996633211111581047")
145	wiresCaps[12] = StringToBN128Hash("15340310232736118098606223218073833983285921571850333937460777227732109309104")
146	wiresCaps[13] = StringToBN128Hash("14370557250059545670244193708996703450518439828341533154117610442161777001185")
147	wiresCaps[14] = StringToBN128Hash("18844434454299441334771065219656682212700835025465734281792408139929868142021")
148	wiresCaps[15] = StringToBN128Hash("19676343740377898318702605893881480074303742058989194823248293456630167789460")
149
150	plonkZsPartialProductsCaps := [16]poseidon.PoseidonBN128HashOut{}
151	plonkZsPartialProductsCaps[0] = StringToBN128Hash("18630303757724954689095079665308152603926320437432442392614316813333911252124")
152	plonkZsPartialProductsCaps[1] = StringToBN128Hash("1941509032097423911575973752610668722198580889286836043016771886256831254944")
153	plonkZsPartialProductsCaps[2] = StringToBN128Hash("6147898094056673441182607282006528423230906496770003193057422314911254596722")
154	plonkZsPartialProductsCaps[3] = StringToBN128Hash("8711744418341460096856191310559061094028644913424948320707020455945693390966")
155	plonkZsPartialProductsCaps[4] = StringToBN128Hash("3170507894509162329082713944669012510679535839018490515228566075949014704871")
156	plonkZsPartialProductsCaps[5] = StringToBN128Hash("9513443633020527244719737008971091746535961947215556968735061932963144145728")
157	plonkZsPartialProductsCaps[6] = StringToBN128Hash("16440622144490342815400399751667969445057099157732990266662948140364680211732")
158	plonkZsPartialProductsCaps[7] = StringToBN128Hash("16904904288584890809819587275120157893767917607795020298373538872373275028362")
159	plonkZsPartialProductsCaps[8] = StringToBN128Hash("1322883689945010694042124537248103086068476085787048131689196755087178475099")
160	plonkZsPartialProductsCaps[9] = StringToBN128Hash("3859729225679954076862546769780866075152550721517632074656261209033111218654")
161	plonkZsPartialProductsCaps[10] = StringToBN128Hash("5995885491698588595978721670502011088690021401297557688057158353938846681398")
162	plonkZsPartialProductsCaps[11] = StringToBN128Hash("16957177478856199232404038751327729781816109007496656232207408246975862260922")
163	plonkZsPartialProductsCaps[12] = StringToBN128Hash("9422393668093911702915740702404346320943009100616501740579421944206639410155")
164	plonkZsPartialProductsCaps[13] = StringToBN128Hash("15680345727093646870610240619814271686346382346107751208797654607051065248818")
165	plonkZsPartialProductsCaps[14] = StringToBN128Hash("4939261448468032698521878059774016528161329965101885352386001950329280576201")
166	plonkZsPartialProductsCaps[15] = StringToBN128Hash("7003946111898359335505647195128523292498498760325513092978040051648331398446")
167
168	quotientPolysCaps := [16]poseidon.PoseidonBN128HashOut{}
169	quotientPolysCaps[0] = StringToBN128Hash("3918560082526903400389798118659365477465402367561322989181693953047280669646")
170	quotientPolysCaps[1] = StringToBN128Hash("496966935842756068593963213547105605432646958081400837931911611833297095727")
171	quotientPolysCaps[2] = StringToBN128Hash("8683297895986438077633020202252074142721819824824948690853505463451806801507")
172	quotientPolysCaps[3] = StringToBN128Hash("14623770060934618886104076268225324888644340537717836901769942847173950269850")
173	quotientPolysCaps[4] = StringToBN128Hash("902377468311802642056170073282349607767917979325737018777782566011948776523")
174	quotientPolysCaps[5] = StringToBN128Hash("12124340721627925810131860890689432371048624670798932303474977401990312142398")
175	quotientPolysCaps[6] = StringToBN128Hash("21656753786114693289615694183370749990935753681953197920766927707640495235100")
176	quotientPolysCaps[7] = StringToBN128Hash("4651674172794111060599611529192263627230814664669763852917839857516619530510")
177	quotientPolysCaps[8] = StringToBN128Hash("13161231355626784301812735677481006076469384200800574341495987998366265598910")
178	quotientPolysCaps[9] = StringToBN128Hash("20853590455948262404101100028402584187982204016660952863575312077951992942329")
179	quotientPolysCaps[10] = StringToBN128Hash("742867642166478273564934628555265381154191517824405375118170559554873960389")
180	quotientPolysCaps[11] = StringToBN128Hash("17617970388755497287414457313283777609067524774358298322461931046141926005038")
181	quotientPolysCaps[12] = StringToBN128Hash("55496208750959228576253470708262329602643441253143570259294790484739321332")
182	quotientPolysCaps[13] = StringToBN128Hash("18450079114184018679423491604333957974306902732410122012117555285853099024676")
183	quotientPolysCaps[14] = StringToBN128Hash("14403337493956171864251492809058241138806636992110526018123749007090024780352")
184	quotientPolysCaps[15] = StringToBN128Hash("252265115458024097842043026135110356285192501597856208375838682286051476335")
185
186	testCase(publicInputs, circuitDigest, wiresCaps, plonkZsPartialProductsCaps, quotientPolysCaps)
187}