mirror of https://github.com/vacp2p/zerokit.git
516 lines
21 KiB
Rust
516 lines
21 KiB
Rust
#[cfg(test)]
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mod test {
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use rln::circuit::{
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circom_from_folder, vk_from_folder, zkey_from_folder, Fr, TEST_RESOURCES_FOLDER,
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TEST_TREE_HEIGHT,
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};
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use rln::hashers::{hash_to_field, poseidon_hash};
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use rln::poseidon_tree::PoseidonTree;
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use rln::protocol::*;
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use rln::utils::str_to_fr;
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use utils::{ZerokitMerkleProof, ZerokitMerkleTree};
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type ConfigOf<T> = <T as ZerokitMerkleTree>::Config;
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// Input generated with https://github.com/oskarth/zk-kit/commit/b6a872f7160c7c14e10a0ea40acab99cbb23c9a8
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const WITNESS_JSON_15: &str = r#"
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{
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"identity_secret": "12825549237505733615964533204745049909430608936689388901883576945030025938736",
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"path_elements": [
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"18622655742232062119094611065896226799484910997537830749762961454045300666333",
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"20590447254980891299813706518821659736846425329007960381537122689749540452732",
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"7423237065226347324353380772367382631490014989348495481811164164159255474657",
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"11286972368698509976183087595462810875513684078608517520839298933882497716792",
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"3607627140608796879659380071776844901612302623152076817094415224584923813162",
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"19712377064642672829441595136074946683621277828620209496774504837737984048981",
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"20775607673010627194014556968476266066927294572720319469184847051418138353016",
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"3396914609616007258851405644437304192397291162432396347162513310381425243293",
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"21551820661461729022865262380882070649935529853313286572328683688269863701601",
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"6573136701248752079028194407151022595060682063033565181951145966236778420039",
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"12413880268183407374852357075976609371175688755676981206018884971008854919922",
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"14271763308400718165336499097156975241954733520325982997864342600795471836726",
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"20066985985293572387227381049700832219069292839614107140851619262827735677018",
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"9394776414966240069580838672673694685292165040808226440647796406499139370960",
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"11331146992410411304059858900317123658895005918277453009197229807340014528524"
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],
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"identity_path_index": [
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1,
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1,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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0
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],
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"x": "8143228284048792769012135629627737459844825626241842423967352803501040982",
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"epoch": "0x0000005b612540fc986b42322f8cb91c2273afad58ed006fdba0c97b4b16b12f",
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"rln_identifier": "11412926387081627876309792396682864042420635853496105400039841573530884328439"
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}
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"#;
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// Input generated with protocol::random_rln_witness
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const WITNESS_JSON_19: &str = r#"
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{
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"identity_secret": "922538810348594125658702672067738675294669207539999802857585668079702330450",
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"path_elements": [
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"16059714054680148404543504061485737353203416489071538960876865983954285286166",
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"3041470753871943901334053763207316028823782848445723460227667780327106380356",
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"2557297527793326315072058421057853700096944625924483912548759909801348042183",
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"6677578602456189582427063963562590713054668181987223110955234085327917303436",
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"2250827150965576973906150764756422151438812678308727218463995574869267980301",
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"1895457427602709606993445561553433669787657053834360973759981803464906070980",
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"11033689991077061346803816826729204895841441316315304395980565540264104346466",
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"18588752216879570844240300406954267039026327526134910835334500497981810174976",
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"19346480964028499661277403659363466542857230928032088490855656809181891953123",
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"21460193770370072688835316363068413651465631481105148051902686770759127189327",
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"20906347653364838502964722817589315918082261023317339146393355650507243340078",
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"13466599592974387800162739317046838825289754472645703919149409009404541432954",
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"9617165663598957201253074168824246164494443748556931540348223968573884172285",
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"6936463137584425684797785981770877165377386163416057257854261010817156666898",
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"369902028235468424790098825415813437044876310542601948037281422841675126849",
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"13510969869821080499683463562609720931680005714401083864659516045615497273644",
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"2567921390740781421487331055530491683313154421589525170472201828596388395736",
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"14360870889466292805403568662660511177232987619663547772298178013674025998478",
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"4735344599616284973799984501493858013178071155960162022656706545116168334293"
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],
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"identity_path_index": [
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1,
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0,
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1,
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0,
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1,
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1,
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0,
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0,
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1,
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1,
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1,
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0,
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0,
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0,
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1,
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0,
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1,
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1,
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0
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],
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"x": "6427050788896290028100534859169645070970780055911091444144195464808120686416",
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"epoch": "0x2bd155d9f85c741044da6909d144f9cc5ce8e0d545a9ed4921b156e8b8569bab",
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"rln_identifier": "2193983000213424579594329476781986065965849144986973472766961413131458022566"
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}
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"#;
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const WITNESS_JSON_20: &str = r#"
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{
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"identity_secret": "13732353453861280511150022598793312186188599006979552959297495195757997428306",
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"path_elements": [
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"20463525608687844300981085488128968694844212760055234622292326942405619575964",
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"8040856403709217901175408904825741112286158901303127670929462145501210871313",
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"3776499751255585163563840252112871568402966629435152937692711318702338789837",
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"19415813252626942110541463414404411443562242499365750694284604341271149125679",
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"19414720788761208006634240390286942738242262010168559813148115573784354129237",
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"17680594732844291740094158892269696200077963275550625226493856898849422516043",
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"16009199741350632715210088346611798597033333293348807000623441780059543674510",
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"18743496911007535170857676824393811326863602477260615792503039058813338644738",
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"1029572792321380246989475723806770724699749375691788486434716005338938722216",
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"21713138150151063186050010182615713685603650963220209951496401043119768920892",
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"6713732504049401389983008178456811894856018247924860823028704114266363984580",
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"2746686888799473963221285145390361693256731812094259845879519459924507786594",
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"18620748467731297359505500266677881218553438497271819903304075323783392031715",
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"2446201221122671119406471414204229600430018713181038717206670749886932158104",
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"12037171942017611311954851302868199608036334625783560875426350283156617524597",
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"21798743392351780927808323348278035105395367759688979232116905142049921734349",
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"17450230289417496971557215666910229260621413088991137405744457922069827319039",
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"20936854099128086256353520300046664152516566958630447858438908748907198510485",
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"13513344965831154386658059617477268600255664386844920822248038939666265737046",
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"15546319496880899251450021422131511560001766832580480193115646510655765306630"
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],
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"identity_path_index": [
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0,
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1,
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0,
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0,
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1,
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1,
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0,
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0,
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1,
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1,
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0,
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0,
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0,
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1,
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0,
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1,
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1,
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0,
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0,
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0
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],
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"x": "18073935665561339809445069958310044423750771681863480888589546877024349720547",
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"epoch": "0x147e4c23a43a1ddca78d94bcd28147f62ca74b3dc7e56bb0a314a954b9f0e567",
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"rln_identifier": "2193983000213424579594329476781986065965849144986973472766961413131458022566"
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}
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"#;
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#[test]
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// We test Merkle tree generation, proofs and verification
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fn test_merkle_proof() {
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let tree_height = TEST_TREE_HEIGHT;
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let leaf_index = 3;
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// generate identity
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let identity_secret_hash = hash_to_field(b"test-merkle-proof");
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let id_commitment = poseidon_hash(&vec![identity_secret_hash]);
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// generate merkle tree
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let default_leaf = Fr::from(0);
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let mut tree = PoseidonTree::new(
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tree_height,
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default_leaf,
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ConfigOf::<PoseidonTree>::default(),
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)
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.unwrap();
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tree.set(leaf_index, id_commitment.into()).unwrap();
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// We check correct computation of the root
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let root = tree.root();
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if TEST_TREE_HEIGHT == 15 {
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assert_eq!(
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root,
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str_to_fr(
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"0x1984f2e01184aef5cb974640898a5f5c25556554e2b06d99d4841badb8b198cd",
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16
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)
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.unwrap()
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);
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} else if TEST_TREE_HEIGHT == 19 {
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assert_eq!(
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root,
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str_to_fr(
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"0x219ceb53f2b1b7a6cf74e80d50d44d68ecb4a53c6cc65b25593c8d56343fb1fe",
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16
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)
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.unwrap()
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);
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} else if TEST_TREE_HEIGHT == 20 {
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assert_eq!(
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root,
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str_to_fr(
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"0x21947ffd0bce0c385f876e7c97d6a42eec5b1fe935aab2f01c1f8a8cbcc356d2",
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16
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)
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.unwrap()
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);
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}
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let merkle_proof = tree.proof(leaf_index).expect("proof should exist");
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let path_elements = merkle_proof.get_path_elements();
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let identity_path_index = merkle_proof.get_path_index();
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// We check correct computation of the path and indexes
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// These values refers to TEST_TREE_HEIGHT == 16
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let mut expected_path_elements = vec![
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str_to_fr(
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"0x0000000000000000000000000000000000000000000000000000000000000000",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x2098f5fb9e239eab3ceac3f27b81e481dc3124d55ffed523a839ee8446b64864",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x1069673dcdb12263df301a6ff584a7ec261a44cb9dc68df067a4774460b1f1e1",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x18f43331537ee2af2e3d758d50f72106467c6eea50371dd528d57eb2b856d238",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x07f9d837cb17b0d36320ffe93ba52345f1b728571a568265caac97559dbc952a",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x2b94cf5e8746b3f5c9631f4c5df32907a699c58c94b2ad4d7b5cec1639183f55",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x2dee93c5a666459646ea7d22cca9e1bcfed71e6951b953611d11dda32ea09d78",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x078295e5a22b84e982cf601eb639597b8b0515a88cb5ac7fa8a4aabe3c87349d",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x2fa5e5f18f6027a6501bec864564472a616b2e274a41211a444cbe3a99f3cc61",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x0e884376d0d8fd21ecb780389e941f66e45e7acce3e228ab3e2156a614fcd747",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x1b7201da72494f1e28717ad1a52eb469f95892f957713533de6175e5da190af2",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x1f8d8822725e36385200c0b201249819a6e6e1e4650808b5bebc6bface7d7636",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x2c5d82f66c914bafb9701589ba8cfcfb6162b0a12acf88a8d0879a0471b5f85a",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x14c54148a0940bb820957f5adf3fa1134ef5c4aaa113f4646458f270e0bfbfd0",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x190d33b12f986f961e10c0ee44d8b9af11be25588cad89d416118e4bf4ebe80c",
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16,
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)
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.unwrap(),
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];
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let mut expected_identity_path_index: Vec<u8> =
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vec![1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
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// We add the remaining elements for the case TEST_TREE_HEIGHT = 20
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if TEST_TREE_HEIGHT == 19 || TEST_TREE_HEIGHT == 20 {
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expected_path_elements.append(&mut vec![
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str_to_fr(
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"0x22f98aa9ce704152ac17354914ad73ed1167ae6596af510aa5b3649325e06c92",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x2a7c7c9b6ce5880b9f6f228d72bf6a575a526f29c66ecceef8b753d38bba7323",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x2e8186e558698ec1c67af9c14d463ffc470043c9c2988b954d75dd643f36b992",
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16,
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)
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.unwrap(),
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str_to_fr(
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"0x0f57c5571e9a4eab49e2c8cf050dae948aef6ead647392273546249d1c1ff10f",
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16,
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)
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.unwrap(),
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]);
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expected_identity_path_index.append(&mut vec![0, 0, 0, 0]);
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}
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if TEST_TREE_HEIGHT == 20 {
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expected_path_elements.append(&mut vec![str_to_fr(
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"0x1830ee67b5fb554ad5f63d4388800e1cfe78e310697d46e43c9ce36134f72cca",
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16,
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)
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.unwrap()]);
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expected_identity_path_index.append(&mut vec![0]);
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}
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assert_eq!(path_elements, expected_path_elements);
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assert_eq!(identity_path_index, expected_identity_path_index);
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// We check correct verification of the proof
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assert!(tree.verify(&id_commitment, &merkle_proof).unwrap());
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}
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#[test]
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// We test a RLN proof generation and verification
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fn test_witness_from_json() {
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// We generate all relevant keys
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let proving_key = zkey_from_folder(TEST_RESOURCES_FOLDER).unwrap();
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let verification_key = vk_from_folder(TEST_RESOURCES_FOLDER).unwrap();
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let builder = circom_from_folder(TEST_RESOURCES_FOLDER).unwrap();
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// We compute witness from the json input example
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let mut witness_json: &str = "";
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if TEST_TREE_HEIGHT == 15 {
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witness_json = WITNESS_JSON_15;
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} else if TEST_TREE_HEIGHT == 19 {
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witness_json = WITNESS_JSON_19;
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} else if TEST_TREE_HEIGHT == 20 {
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witness_json = WITNESS_JSON_20;
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}
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let rln_witness = rln_witness_from_json(witness_json);
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let rln_witness_unwrapped = rln_witness.unwrap();
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// Let's generate a zkSNARK proof
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let proof = generate_proof(builder, &proving_key, &rln_witness_unwrapped).unwrap();
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let proof_values = proof_values_from_witness(&rln_witness_unwrapped);
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// Let's verify the proof
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let verified = verify_proof(&verification_key, &proof, &proof_values);
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assert!(verified.unwrap());
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}
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#[test]
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// We test a RLN proof generation and verification
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fn test_end_to_end() {
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let tree_height = TEST_TREE_HEIGHT;
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let leaf_index = 3;
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// Generate identity pair
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let (identity_secret_hash, id_commitment) = keygen();
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//// generate merkle tree
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let default_leaf = Fr::from(0);
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let mut tree = PoseidonTree::new(
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tree_height,
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default_leaf,
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ConfigOf::<PoseidonTree>::default(),
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)
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.unwrap();
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tree.set(leaf_index, id_commitment.into()).unwrap();
|
|
|
|
let merkle_proof = tree.proof(leaf_index).expect("proof should exist");
|
|
|
|
let signal = b"hey hey";
|
|
let x = hash_to_field(signal);
|
|
|
|
// We set the remaining values to random ones
|
|
let epoch = hash_to_field(b"test-epoch");
|
|
//let rln_identifier = hash_to_field(b"test-rln-identifier");
|
|
|
|
let rln_witness: RLNWitnessInput = rln_witness_from_values(
|
|
identity_secret_hash,
|
|
&merkle_proof,
|
|
x,
|
|
epoch, /*, rln_identifier*/
|
|
);
|
|
|
|
// We generate all relevant keys
|
|
let proving_key = zkey_from_folder(TEST_RESOURCES_FOLDER).unwrap();
|
|
let verification_key = vk_from_folder(TEST_RESOURCES_FOLDER).unwrap();
|
|
let builder = circom_from_folder(TEST_RESOURCES_FOLDER).unwrap();
|
|
|
|
// Let's generate a zkSNARK proof
|
|
let proof = generate_proof(builder, &proving_key, &rln_witness).unwrap();
|
|
|
|
let proof_values = proof_values_from_witness(&rln_witness);
|
|
|
|
// Let's verify the proof
|
|
let success = verify_proof(&verification_key, &proof, &proof_values).unwrap();
|
|
|
|
assert!(success);
|
|
}
|
|
|
|
#[test]
|
|
fn test_witness_serialization() {
|
|
// We test witness serialization
|
|
let mut witness_json: &str = "";
|
|
|
|
if TEST_TREE_HEIGHT == 15 {
|
|
witness_json = WITNESS_JSON_15;
|
|
} else if TEST_TREE_HEIGHT == 19 {
|
|
witness_json = WITNESS_JSON_19;
|
|
} else if TEST_TREE_HEIGHT == 20 {
|
|
witness_json = WITNESS_JSON_20;
|
|
}
|
|
|
|
let rln_witness = rln_witness_from_json(witness_json).unwrap();
|
|
|
|
let ser = serialize_witness(&rln_witness).unwrap();
|
|
let (deser, _) = deserialize_witness(&ser).unwrap();
|
|
assert_eq!(rln_witness, deser);
|
|
|
|
// We test Proof values serialization
|
|
let proof_values = proof_values_from_witness(&rln_witness);
|
|
let ser = serialize_proof_values(&proof_values);
|
|
let (deser, _) = deserialize_proof_values(&ser);
|
|
assert_eq!(proof_values, deser);
|
|
}
|
|
|
|
#[test]
|
|
// Tests seeded keygen
|
|
// Note that hardcoded values are only valid for Bn254
|
|
fn test_seeded_keygen() {
|
|
// Generate identity pair using a seed phrase
|
|
let seed_phrase: &str = "A seed phrase example";
|
|
let (identity_secret_hash, id_commitment) = seeded_keygen(seed_phrase.as_bytes());
|
|
|
|
// We check against expected values
|
|
let expected_identity_secret_hash_seed_phrase = str_to_fr(
|
|
"0x20df38f3f00496f19fe7c6535492543b21798ed7cb91aebe4af8012db884eda3",
|
|
16,
|
|
)
|
|
.unwrap();
|
|
let expected_id_commitment_seed_phrase = str_to_fr(
|
|
"0x1223a78a5d66043a7f9863e14507dc80720a5602b2a894923e5b5147d5a9c325",
|
|
16,
|
|
)
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
identity_secret_hash,
|
|
expected_identity_secret_hash_seed_phrase
|
|
);
|
|
assert_eq!(id_commitment, expected_id_commitment_seed_phrase);
|
|
|
|
// Generate identity pair using an byte array
|
|
let seed_bytes: &[u8] = &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
|
|
let (identity_secret_hash, id_commitment) = seeded_keygen(seed_bytes);
|
|
|
|
// We check against expected values
|
|
let expected_identity_secret_hash_seed_bytes = str_to_fr(
|
|
"0x766ce6c7e7a01bdf5b3f257616f603918c30946fa23480f2859c597817e6716",
|
|
16,
|
|
)
|
|
.unwrap();
|
|
let expected_id_commitment_seed_bytes = str_to_fr(
|
|
"0xbf16d2b5c0d6f9d9d561e05bfca16a81b4b873bb063508fae360d8c74cef51f",
|
|
16,
|
|
)
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
identity_secret_hash,
|
|
expected_identity_secret_hash_seed_bytes
|
|
);
|
|
assert_eq!(id_commitment, expected_id_commitment_seed_bytes);
|
|
|
|
// We check again if the identity pair generated with the same seed phrase corresponds to the previously generated one
|
|
let (identity_secret_hash, id_commitment) = seeded_keygen(seed_phrase.as_bytes());
|
|
|
|
assert_eq!(
|
|
identity_secret_hash,
|
|
expected_identity_secret_hash_seed_phrase
|
|
);
|
|
assert_eq!(id_commitment, expected_id_commitment_seed_phrase);
|
|
}
|
|
}
|