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

x33g5p2x  于2022-01-19 转载在 其他  
字(9.1k)|赞(0)|评价(0)|浏览(162)

本文整理了Java中org.bouncycastle.math.ec.ECPoint.getRawYCoord()方法的一些代码示例，展示了ECPoint.getRawYCoord()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。ECPoint.getRawYCoord()方法的具体详情如下：
包路径：org.bouncycastle.math.ec.ECPoint
类名称：ECPoint
方法名：getRawYCoord

ECPoint.getRawYCoord介绍

暂无

代码示例

代码示例来源：origin: redfish64/TinyTravelTracker

public String toString()
{
  if (this.isInfinity())
  {
    return "INF";
  }
  StringBuffer sb = new StringBuffer();
  sb.append('(');
  sb.append(getRawXCoord());
  sb.append(',');
  sb.append(getRawYCoord());
  for (int i = 0; i < zs.length; ++i)
  {
    sb.append(',');
    sb.append(zs[i]);
  }
  sb.append(')');
  return sb.toString();
}

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

public String toString()
{
  if (this.isInfinity())
  {
    return "INF";
  }
  StringBuffer sb = new StringBuffer();
  sb.append('(');
  sb.append(getRawXCoord());
  sb.append(',');
  sb.append(getRawYCoord());
  for (int i = 0; i < zs.length; ++i)
  {
    sb.append(',');
    sb.append(zs[i]);
  }
  sb.append(')');
  return sb.toString();
}

代码示例来源：origin: com.cryptape.cita/crypto

public static String getAddress(ECPoint key) {
  String publicKey = key.getRawXCoord().toString() + key.getRawYCoord().toString();
  return getAddress(publicKey);
}

代码示例来源：origin: RUB-NDS/TLS-Attacker

private CustomECPoint toCustomECPoint(ECPublicKey key) {
  ECPoint q = key.getQ();
  return new CustomECPoint(q.getRawXCoord().toBigInteger(), q.getRawYCoord().toBigInteger());
}

代码示例来源：origin: redfish64/TinyTravelTracker

protected ECPoint createScaledPoint(ECFieldElement sx, ECFieldElement sy)
{
  return this.getCurve().createRawPoint(getRawXCoord().multiply(sx), getRawYCoord().multiply(sy), this.withCompression);
}

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

protected ECPoint createScaledPoint(ECFieldElement sx, ECFieldElement sy)
{
  return this.getCurve().createRawPoint(getRawXCoord().multiply(sx), getRawYCoord().multiply(sy), this.withCompression);
}

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

public ECPoint scaleY(ECFieldElement scale)
{
  return isInfinity()
    ?   this
    :   getCurve().createRawPoint(getRawXCoord(), getRawYCoord().multiply(scale), getRawZCoords(), this.withCompression);
}

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

public ECPoint scaleX(ECFieldElement scale)
{
  return isInfinity()
    ?   this
    :   getCurve().createRawPoint(getRawXCoord().multiply(scale), getRawYCoord(), getRawZCoords(), this.withCompression);
}

代码示例来源：origin: redfish64/TinyTravelTracker

public ECPoint scaleX(ECFieldElement scale)
{
  return isInfinity()
    ?   this
    :   getCurve().createRawPoint(getRawXCoord().multiply(scale), getRawYCoord(), getRawZCoords(), this.withCompression);
}

代码示例来源：origin: redfish64/TinyTravelTracker

public ECPoint scaleY(ECFieldElement scale)
{
  return isInfinity()
    ?   this
    :   getCurve().createRawPoint(getRawXCoord(), getRawYCoord().multiply(scale), getRawZCoords(), this.withCompression);
}

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

Nat256.copy(((SecP256R1FieldElement)p.getRawYCoord()).x, 0, table, pos); pos += FE_INTS;

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

Nat256.copy(((Curve25519FieldElement)p.getRawYCoord()).x, 0, table, pos); pos += FE_INTS;

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

Nat256.copy64(((SecT193FieldElement)p.getRawYCoord()).x, 0, table, pos); pos += FE_LONGS;

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

Nat192.copy64(((SecT163FieldElement)p.getRawYCoord()).x, 0, table, pos); pos += FE_LONGS;

代码示例来源：origin: RUB-NDS/TLS-Attacker

public static CustomECPoint createClassicEcPublicKey(NamedGroup group, BigInteger privateKey) {
  if (!group.isStandardCurve()) {
    throw new IllegalArgumentException(
        "Cannot create ClassicEcPublicKey for group which is not a classic curve:" + group.name());
  }
  ECDomainParameters ecDomainParameters = generateEcParameters(group);
  ECPoint ecPoint = ecDomainParameters.getG().multiply(privateKey);
  ecPoint = ecPoint.normalize();
  if (ecPoint.isInfinity()) {
    // TODO ???
    return new CustomECPoint(BigInteger.ZERO, BigInteger.ZERO);
  }
  return new CustomECPoint(ecPoint.getRawXCoord().toBigInteger(), ecPoint.getRawYCoord().toBigInteger());
}

代码示例来源：origin: RUB-NDS/TLS-Attacker

private void adjustClientPublicKey(ECDHClientKeyExchangeMessage message) {
  byte[] serializedPoint = message.getPublicKey().getValue();
  List<ECPointFormat> pointFormatList = tlsContext.getChooser().getServerSupportedPointFormats();
  ECPointFormat[] formatArray = pointFormatList.toArray(new ECPointFormat[pointFormatList.size()]);
  NamedGroup usedGroup = tlsContext.getChooser().getSelectedNamedGroup();
  ECDomainParameters ecParams = getDomainParameters(tlsContext.getChooser().getEcCurveType(), usedGroup);
  short[] pointFormats = ECCUtilsBCWrapper.convertPointFormats(formatArray);
  try {
    ECPublicKeyParameters clientPublicKey = TlsECCUtils.deserializeECPublicKey(pointFormats, ecParams,
        serializedPoint);
    tlsContext.setClientEcPublicKey(new CustomECPoint(clientPublicKey.getQ().getRawXCoord().toBigInteger(),
        clientPublicKey.getQ().getRawYCoord().toBigInteger()));
  } catch (IOException ex) {
    LOGGER.info("Could not deserialize EC point (it is possible that some of your modifications made "
        + "the EC point invalid)");
    LOGGER.debug(
        "EC point that was attempted to be deserialized: "
            + ArrayConverter.bytesToHexString(serializedPoint), ex);
  }
}

代码示例来源：origin: com.cryptape.cita/crypto

public static byte[] getSignature(Signature signature, ECPoint publicKey) {
  String publicKeyBytes = fillStr64(publicKey.getRawXCoord().toString()) + fillStr64(publicKey.getRawYCoord().toString());
  return join(HexUtil.hexToBytes(signature.getSign()), HexUtil.hexToBytes(publicKeyBytes));
}

代码示例来源：origin: RUB-NDS/TLS-Attacker

protected void setComputationPublicKey(T msg, boolean clientMode) {
  if (clientMode) {
    msg.getComputations().setPublicKey(chooser.getServerEcPublicKey().getX(),
        chooser.getServerEcPublicKey().getY());
  } else {
    serializedPoint = msg.getPublicKey().getValue();
    List<ECPointFormat> pointFormatList = chooser.getServerSupportedPointFormats();
    ECPointFormat[] formatArray = pointFormatList.toArray(new ECPointFormat[pointFormatList.size()]);
    NamedGroup usedGroup = chooser.getSelectedNamedGroup();
    ECDomainParameters ecParams = getDomainParameters(chooser.getEcCurveType(), usedGroup);
    short[] pointFormats = ECCUtilsBCWrapper.convertPointFormats(formatArray);
    try {
      ECPublicKeyParameters clientPublicKey = TlsECCUtils.deserializeECPublicKey(pointFormats, ecParams,
          serializedPoint);
      ECPoint q = clientPublicKey.getQ();
      q = q.normalize();
      msg.getComputations().setPublicKey(q.getRawXCoord().toBigInteger(), q.getRawYCoord().toBigInteger());
    } catch (IOException ex) {
      throw new PreparationException("Could not deserialize EC Point: "
          + ArrayConverter.bytesToHexString(serializedPoint), ex);
    }
  }
  LOGGER.debug("Computation PublicKey: " + msg.getComputations().getPublicKey().toString());
}

代码示例来源：origin: RUB-NDS/TLS-Attacker

@Override
public void prepareAfterParse(boolean clientMode) {
  msg.prepareComputations();
  prepareClientServerRandom(msg);
  NamedGroup usedGroup = chooser.getSelectedNamedGroup();
  LOGGER.debug("Used Group: " + usedGroup.name());
  setComputationPrivateKey(msg, clientMode);
  ECDomainParameters ecParams = getDomainParameters(chooser.getEcCurveType(), usedGroup);
  if (clientMode) {
    ECPoint clientPublicKey = ecParams.getG().multiply(msg.getComputations().getPrivateKey().getValue());
    clientPublicKey = clientPublicKey.normalize();
    if (clientPublicKey.getRawXCoord() != null && clientPublicKey.getRawYCoord() != null) {
      msg.getComputations().setComputedPublicKeyX(clientPublicKey.getRawXCoord().toBigInteger());
      msg.getComputations().setComputedPublicKeyY(clientPublicKey.getRawYCoord().toBigInteger());
    } else {
      LOGGER.warn("Could not compute correct public key. Using empty one instead");
      msg.getComputations().setComputedPublicKeyX(BigInteger.ZERO);
      msg.getComputations().setComputedPublicKeyY(BigInteger.ZERO);
    }
  }
  setComputationPublicKey(msg, clientMode);
  LOGGER.debug("PublicKey used:" + msg.getComputations().getPublicKey().toString());
  LOGGER.debug("PrivateKey used:" + msg.getComputations().getPrivateKey().getValue());
  ECPoint publicKey = ecParams.getCurve().createPoint(msg.getComputations().getPublicKey().getX(),
      msg.getComputations().getPublicKey().getY());
  publicKey = publicKey.normalize();
  premasterSecret = computePremasterSecret(new ECPublicKeyParameters(publicKey, ecParams),
      new ECPrivateKeyParameters(msg.getComputations().getPrivateKey().getValue(), ecParams));
  preparePremasterSecret(msg);
}

代码示例来源：origin: RUB-NDS/TLS-Attacker

protected void adjustECParameter(ECDHEServerKeyExchangeMessage message) {
    tlsContext.setSelectedGroup(NamedGroup.getNamedGroup(message.getNamedGroup().getValue()));
    // TODO avoid BC tool
    byte[] ecParams = ArrayConverter.concatenate(new byte[] { message.getGroupType().getValue() }, message
        .getNamedGroup().getValue(), ArrayConverter.intToBytes(message.getPublicKeyLength().getValue(), 1),
        message.getPublicKey().getValue());
    InputStream is = new ByteArrayInputStream(ecParams);
    ECPublicKeyParameters publicKeyParameters = null;
    try {
      publicKeyParameters = ECCUtilsBCWrapper.readECParametersWithPublicKey(is);
    } catch (TlsFatalAlert alert) {
      throw new AdjustmentException("Problematic EC parameters, we dont support these yet", alert);
    } catch (IOException ex) {
      throw new AdjustmentException("EC public key parsing failed", ex);
    }
    CustomECPoint publicKey = new CustomECPoint(publicKeyParameters.getQ().getRawXCoord().toBigInteger(),
        publicKeyParameters.getQ().getRawYCoord().toBigInteger());
    tlsContext.setServerEcPublicKey(publicKey);
  }
}

内容来源于网络，如有侵权，请联系作者删除！

ECPoint

相关文章

    查看更多
    微信公众号

    热门标签

    更多
    JavaquerypythonNode开发语言requestUtil数据库Table后端算法LoggerMessageElementParser

    最新文章

    更多
    • 蜀ICP备13028337号-1 大数据知识库 https://www.saoniuhuo.com © All rights reserved
    • 本站内容来源互联网,如果侵犯您的权益请联系我们删除, 联系方式：448109455@qq.com