com.chatwork.scala.jwk.ECParameterTable.scala Maven / Gradle / Ivy

Go to download
package com.chatwork.scala.jwk

import java.math.BigInteger
import java.security.spec.{ ECFieldFp, ECParameterSpec, ECPoint, EllipticCurve }

object ECParameterTable {

  val P_256_SPEC = new ECParameterSpec(
    new EllipticCurve(
      new ECFieldFp(new BigInteger("115792089210356248762697446949407573530086143415290314195533631308867097853951")),
      new BigInteger("115792089210356248762697446949407573530086143415290314195533631308867097853948"),
      new BigInteger("41058363725152142129326129780047268409114441015993725554835256314039467401291")
    ),
    new ECPoint(
      new BigInteger("48439561293906451759052585252797914202762949526041747995844080717082404635286"),
      new BigInteger("36134250956749795798585127919587881956611106672985015071877198253568414405109")
    ),
    new BigInteger("115792089210356248762697446949407573529996955224135760342422259061068512044369"),
    1
  )

  val P_384_SPEC = new ECParameterSpec(
    new EllipticCurve(
      new ECFieldFp(
        new BigInteger(
          "39402006196394479212279040100143613805079739270465446667948293404245721771496870329047266088258938001861606973112319"
        )
      ),
      new BigInteger(
        "39402006196394479212279040100143613805079739270465446667948293404245721771496870329047266088258938001861606973112316"
      ),
      new BigInteger(
        "27580193559959705877849011840389048093056905856361568521428707301988689241309860865136260764883745107765439761230575"
      )
    ),
    new ECPoint(
      new BigInteger(
        "26247035095799689268623156744566981891852923491109213387815615900925518854738050089022388053975719786650872476732087"
      ),
      new BigInteger(
        "8325710961489029985546751289520108179287853048861315594709205902480503199884419224438643760392947333078086511627871"
      )
    ),
    new BigInteger(
      "39402006196394479212279040100143613805079739270465446667946905279627659399113263569398956308152294913554433653942643"
    ),
    1
  )

  val P_521_SPEC = new ECParameterSpec(
    new EllipticCurve(
      new ECFieldFp(
        new BigInteger(
          "6864797660130609714981900799081393217269435300143305409394463459185543183397656052122559640661454554977296311391480858037121987999716643812574028291115057151"
        )
      ),
      new BigInteger(
        "6864797660130609714981900799081393217269435300143305409394463459185543183397656052122559640661454554977296311391480858037121987999716643812574028291115057148"
      ),
      new BigInteger(
        "1093849038073734274511112390766805569936207598951683748994586394495953116150735016013708737573759623248592132296706313309438452531591012912142327488478985984"
      )
    ),
    new ECPoint(
      new BigInteger(
        "2661740802050217063228768716723360960729859168756973147706671368418802944996427808491545080627771902352094241225065558662157113545570916814161637315895999846"
      ),
      new BigInteger(
        "3757180025770020463545507224491183603594455134769762486694567779615544477440556316691234405012945539562144444537289428522585666729196580810124344277578376784"
      )
    ),
    new BigInteger(
      "6864797660130609714981900799081393217269435300143305409394463459185543183397655394245057746333217197532963996371363321113864768612440380340372808892707005449"
    ),
    1
  )

  def get(curve: Curve): Option[ECParameterSpec] = {
    curve match {
      case Curve.P_256 =>
        Some(P_256_SPEC)
      case Curve.P_384 =>
        Some(P_384_SPEC)
      case Curve.P_521 =>
        Some(P_521_SPEC)
      case _ =>
        None
    }
  }

  def get(spec: ECParameterSpec): Option[Curve] = {
    if (
      spec.getCurve.getField.getFieldSize == P_256_SPEC.getCurve.getField.getFieldSize &&
      spec.getCurve.getA.equals(P_256_SPEC.getCurve.getA) &&
      spec.getCurve.getB.equals(P_256_SPEC.getCurve.getB) &&
      spec.getGenerator.getAffineX.equals(P_256_SPEC.getGenerator.getAffineX) &&
      spec.getGenerator.getAffineY.equals(P_256_SPEC.getGenerator.getAffineY) &&
      spec.getOrder.equals(P_256_SPEC.getOrder) &&
      spec.getCofactor == P_256_SPEC.getCofactor
    ) {
      Some(Curve.P_256)
    } else if (
      spec.getCurve.getField.getFieldSize == P_384_SPEC.getCurve.getField.getFieldSize &&
      spec.getCurve.getA.equals(P_384_SPEC.getCurve.getA) &&
      spec.getCurve.getB.equals(P_384_SPEC.getCurve.getB) &&
      spec.getGenerator.getAffineX.equals(P_384_SPEC.getGenerator.getAffineX) &&
      spec.getGenerator.getAffineY.equals(P_384_SPEC.getGenerator.getAffineY) &&
      spec.getOrder.equals(P_384_SPEC.getOrder) &&
      spec.getCofactor == P_384_SPEC.getCofactor
    ) {
      Some(Curve.P_384)
    } else if (
      spec.getCurve.getField.getFieldSize == P_521_SPEC.getCurve.getField.getFieldSize &&
      spec.getCurve.getA.equals(P_521_SPEC.getCurve.getA) &&
      spec.getCurve.getB.equals(P_521_SPEC.getCurve.getB) &&
      spec.getGenerator.getAffineX.equals(P_521_SPEC.getGenerator.getAffineX) &&
      spec.getGenerator.getAffineY.equals(P_521_SPEC.getGenerator.getAffineY) &&
      spec.getOrder.equals(P_521_SPEC.getOrder) &&
      spec.getCofactor == P_521_SPEC.getCofactor
    ) {
      Some(Curve.P_521)
    } else {
      None
    }
  }

}