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meck93/evote-crypto

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Similar blocks of code found in 2 locations. Consider refactoring.
Open

export interface MembershipProof {
  a0: CurvePoint
  a1: CurvePoint
  b0: CurvePoint
  b1: CurvePoint
Severity: Major
Found in src/ec-elgamal/proofs/models.ts and 1 other location - About 2 hrs to fix
src/ff-elgamal/proofs/models.ts on lines 8..17

Similar blocks of code found in 2 locations. Consider refactoring.
Open

export interface MembershipProof {
  a0: BN
  a1: BN
  b0: BN
  b1: BN
Severity: Major
Found in src/ff-elgamal/proofs/models.ts and 1 other location - About 2 hrs to fix
src/ec-elgamal/proofs/models.ts on lines 9..18

Similar blocks of code found in 2 locations. Consider refactoring.
Open

  if (!test1.eq(GlobalHelper.newBN(1))) {
    throw new Error(
      `g^q mod p != 1 (== ${test1.toNumber()}. for p: ${p}, q: ${sysParams.q.toNumber()} and g: ${g}`
    )
  }
Severity: Major
Found in src/ff-elgamal/systemSetup.ts and 1 other location - About 1 hr to fix
src/ff-elgamal/systemSetup.ts on lines 59..63

Similar blocks of code found in 2 locations. Consider refactoring.
Open

  if (!test2.eq(GlobalHelper.newBN(1))) {
    throw new Error(
      `h^q mod p != 1 (== ${test2.toNumber()}. for p: ${p}, q: ${sysParams.q.toNumber()} and g: ${g}`
    )
  }
Severity: Major
Found in src/ff-elgamal/systemSetup.ts and 1 other location - About 1 hr to fix
src/ff-elgamal/systemSetup.ts on lines 51..55

Similar blocks of code found in 2 locations. Consider refactoring.
Open

export const combinePublicKeys = (params: SystemParameters, publicKeyShares: BN[]): BN => {
  isSystemParameters(params)
  return publicKeyShares.reduce((product, share) => GlobalHelper.mulBN(product, share, params.p))
}
Severity: Major
Found in src/ff-elgamal/systemSetup.ts and 1 other location - About 1 hr to fix
src/ff-elgamal/systemSetup.ts on lines 83..86

Similar blocks of code found in 2 locations. Consider refactoring.
Open

export const combinePrivateKeys = (params: SystemParameters, privateKeyShares: BN[]): BN => {
  isSystemParameters(params)
  return privateKeyShares.reduce((sum, share) => GlobalHelper.addBN(sum, share, params.q))
}
Severity: Major
Found in src/ff-elgamal/systemSetup.ts and 1 other location - About 1 hr to fix
src/ff-elgamal/systemSetup.ts on lines 75..78

Similar blocks of code found in 2 locations. Consider refactoring.
Open

defineCurve('p192', {
  type: 'short',
  prime: 'p192',
  p: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff',
  a: 'ffffffff ffffffff ffffffff fffffffe ffffffff fffffffc',
Severity: Major
Found in curves.js and 1 other location - About 1 hr to fix
curves.js on lines 55..68

Similar blocks of code found in 2 locations. Consider refactoring.
Open

defineCurve('p224', {
  type: 'short',
  prime: 'p224',
  p: 'ffffffff ffffffff ffffffff ffffffff 00000000 00000000 00000001',
  a: 'ffffffff ffffffff ffffffff fffffffe ffffffff ffffffff fffffffe',
Severity: Major
Found in curves.js and 1 other location - About 1 hr to fix
curves.js on lines 40..53

Function generateNoProof has 29 lines of code (exceeds 25 allowed). Consider refactoring.
Open

export const generateNoProof = (
  encryptedVote: Cipher,
  params: SystemParameters | SystemParametersSerialized,
  publicKey: CurvePoint | string,
  id: string
Severity: Minor
Found in src/ec-elgamal/proofs/membership.ts - About 1 hr to fix

    Function generateYesProof has 28 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

    export const generateYesProof = (
      encryptedVote: Cipher,
      params: SystemParameters | SystemParametersSerialized,
      publicKey: CurvePoint | string,
      id: string
    Severity: Minor
    Found in src/ec-elgamal/proofs/membership.ts - About 1 hr to fix

      Similar blocks of code found in 3 locations. Consider refactoring.
      Open

      export const addBN = (a: BN, b: BN, modulus: BN): BN => a.add(b).mod(modulus)
      Severity: Major
      Found in src/helper.ts and 2 other locations - About 1 hr to fix
      src/helper.ts on lines 7..7
      src/helper.ts on lines 8..8

      Similar blocks of code found in 3 locations. Consider refactoring.
      Open

      export const mulBN = (a: BN, b: BN, modulus: BN): BN => a.mul(b).mod(modulus)
      Severity: Major
      Found in src/helper.ts and 2 other locations - About 1 hr to fix
      src/helper.ts on lines 6..6
      src/helper.ts on lines 7..7

      Similar blocks of code found in 3 locations. Consider refactoring.
      Open

      export const subBN = (a: BN, b: BN, modulus: BN): BN => a.sub(b).mod(modulus)
      Severity: Major
      Found in src/helper.ts and 2 other locations - About 1 hr to fix
      src/helper.ts on lines 6..6
      src/helper.ts on lines 8..8

      Function generateNoProof has 26 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

      export const generateNoProof = (
        cipher: Cipher,
        sp: SystemParameters,
        pk: BN,
        uniqueID: string
      Severity: Minor
      Found in src/ff-elgamal/proofs/membership.ts - About 1 hr to fix

        Similar blocks of code found in 2 locations. Consider refactoring.
        Open

        const generateChallenge = (
          q: BN,
          uniqueID: string,
          a: BN,
          b: BN,
        Severity: Major
        Found in src/ff-elgamal/proofs/membership.ts and 1 other location - About 1 hr to fix
        src/ec-elgamal/proofs/membership.ts on lines 17..39

        Similar blocks of code found in 2 locations. Consider refactoring.
        Open

        export const generateChallenge = (
          n: BN,
          id: string,
          c1: CurvePoint,
          c2: CurvePoint,
        Severity: Major
        Found in src/ec-elgamal/proofs/membership.ts and 1 other location - About 1 hr to fix
        src/ff-elgamal/proofs/membership.ts on lines 28..43

        Identical blocks of code found in 2 locations. Consider refactoring.
        Open

        const add = (a: BN, b: BN, sp: SystemParameters): BN => GlobalHelper.addBN(a, b, sp.q)
        Severity: Minor
        Found in src/ff-elgamal/proofs/membership.ts and 1 other location - About 55 mins to fix
        src/ff-elgamal/proofs/decryption.ts on lines 22..22

        Identical blocks of code found in 2 locations. Consider refactoring.
        Open

        const add = (a: BN, b: BN, sp: SystemParameters): BN => GlobalHelper.addBN(a, b, sp.q)
        Severity: Minor
        Found in src/ff-elgamal/proofs/decryption.ts and 1 other location - About 55 mins to fix
        src/ff-elgamal/proofs/membership.ts on lines 21..21

        Identical blocks of code found in 2 locations. Consider refactoring.
        Open

        const pow = (a: BN, b: BN, sp: SystemParameters): BN => GlobalHelper.powBN(a, b, sp.p)
        Severity: Minor
        Found in src/ff-elgamal/proofs/membership.ts and 1 other location - About 55 mins to fix
        src/ff-elgamal/proofs/decryption.ts on lines 24..24

        Identical blocks of code found in 2 locations. Consider refactoring.
        Open

        const pow = (a: BN, b: BN, sp: SystemParameters): BN => GlobalHelper.powBN(a, b, sp.p)
        Severity: Minor
        Found in src/ff-elgamal/proofs/decryption.ts and 1 other location - About 55 mins to fix
        src/ff-elgamal/proofs/membership.ts on lines 25..25
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