dagger-contracts/test/proof.js

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const fs = require("fs")
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const ethers = require("ethers")
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const { BigNumber } = ethers
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const BASE_PATH = __dirname + "/../verifier/networks"
const PROOF_FILE_NAME = "example-proof/proof.json"
const PUBLIC_INPUT_FILE_NAME = "example-proof/public.json"
const VERIFICATION_KEY_FILE_NAME =
"verification-key/proof_main_verification_key.json"
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function G1ToStruct(point) {
return {
x: point[0],
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y: point[1],
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}
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}
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function G2ToStruct(point) {
return {
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x: [point[0][1], point[0][0]],
y: [point[1][1], point[1][0]],
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}
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}
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function loadProof(name) {
const proof = JSON.parse(
fs.readFileSync(`${BASE_PATH}/${name}/${PROOF_FILE_NAME}`)
)
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return {
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a: G1ToStruct(proof["pi_a"]),
b: G2ToStruct(proof["pi_b"]),
c: G1ToStruct(proof["pi_c"]),
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}
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}
function loadPublicInput(name) {
const input = JSON.parse(
fs.readFileSync(`${BASE_PATH}/${name}/${PUBLIC_INPUT_FILE_NAME}`)
)
return input
}
function loadVerificationKey(name) {
const key = JSON.parse(
fs.readFileSync(`${BASE_PATH}/${name}/${VERIFICATION_KEY_FILE_NAME}`)
)
return {
alpha1: G1ToStruct(key["vk_alpha_1"]),
beta2: G2ToStruct(key["vk_beta_2"]),
gamma2: G2ToStruct(key["vk_gamma_2"]),
delta2: G2ToStruct(key["vk_delta_2"]),
IC: key["IC"].map(G1ToStruct),
}
}
module.exports = { loadProof, loadPublicInput, loadVerificationKey }