org.bouncycastle.math.ec.ECCurve.getEndomorphism()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中org.bouncycastle.math.ec.ECCurve.getEndomorphism()方法的一些代码示例,展示了ECCurve.getEndomorphism()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。ECCurve.getEndomorphism()方法的具体详情如下:
包路径:org.bouncycastle.math.ec.ECCurve
类名称:ECCurve
方法名:getEndomorphism

ECCurve.getEndomorphism介绍

暂无

代码示例

代码示例来源:origin: redfish64/TinyTravelTracker

ECEndomorphism endomorphism = c.getEndomorphism();
if (endomorphism instanceof GLVEndomorphism)

代码示例来源:origin: org.bouncycastle/bcprov-debug-jdk15on

ECEndomorphism endomorphism = c.getEndomorphism();
if (endomorphism instanceof GLVEndomorphism)

代码示例来源:origin: redfish64/TinyTravelTracker

public static ECPoint sumOfTwoMultiplies(ECPoint P, BigInteger a,
  ECPoint Q, BigInteger b)
{
  ECCurve cp = P.getCurve();
  Q = importPoint(cp, Q);
  // Point multiplication for Koblitz curves (using WTNAF) beats Shamir's trick
  if (cp instanceof ECCurve.F2m)
  {
    ECCurve.F2m f2mCurve = (ECCurve.F2m)cp;
    if (f2mCurve.isKoblitz())
    {
      return validatePoint(P.multiply(a).add(Q.multiply(b)));
    }
  }
  ECEndomorphism endomorphism = cp.getEndomorphism();
  if (endomorphism instanceof GLVEndomorphism)
  {
    return validatePoint(
      implSumOfMultipliesGLV(new ECPoint[]{ P, Q }, new BigInteger[]{ a, b }, (GLVEndomorphism)endomorphism));
  }
  return validatePoint(implShamirsTrickWNaf(P, a, Q, b));
}

代码示例来源:origin: org.bouncycastle/bcprov-debug-jdk15on

public static ECPoint sumOfTwoMultiplies(ECPoint P, BigInteger a,
  ECPoint Q, BigInteger b)
{
  ECCurve cp = P.getCurve();
  Q = importPoint(cp, Q);
  // Point multiplication for Koblitz curves (using WTNAF) beats Shamir's trick
  if (cp instanceof ECCurve.AbstractF2m)
  {
    ECCurve.AbstractF2m f2mCurve = (ECCurve.AbstractF2m)cp;
    if (f2mCurve.isKoblitz())
    {
      return implCheckResult(P.multiply(a).add(Q.multiply(b)));
    }
  }
  ECEndomorphism endomorphism = cp.getEndomorphism();
  if (endomorphism instanceof GLVEndomorphism)
  {
    return implCheckResult(
      implSumOfMultipliesGLV(new ECPoint[]{ P, Q }, new BigInteger[]{ a, b }, (GLVEndomorphism)endomorphism));
  }
  return implCheckResult(implShamirsTrickWNaf(P, a, Q, b));
}

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