本文整理汇总了Java中org.bouncycastle.crypto.params.ECKeyParameters类的典型用法代码示例。如果您正苦于以下问题：Java ECKeyParameters类的具体用法？Java ECKeyParameters怎么用？Java ECKeyParameters使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
ECKeyParameters类属于org.bouncycastle.crypto.params包，在下文中一共展示了ECKeyParameters类的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: getKeyLength
import org.bouncycastle.crypto.params.ECKeyParameters; //导入依赖的package包/类
/**
* Get the key size of a key represented by key parameters.
*
* @param keyParams The key parameters
* @return The key size, {@link #UNKNOWN_KEY_SIZE} if not known
*/
public static int getKeyLength(AsymmetricKeyParameter keyParams)
{
if (keyParams instanceof RSAKeyParameters)
{
return ((RSAKeyParameters) keyParams).getModulus().bitLength();
}
else if (keyParams instanceof DSAKeyParameters)
{
return ((DSAKeyParameters) keyParams).getParameters().getP().bitLength();
}
else if (keyParams instanceof DHKeyParameters)
{
return ((DHKeyParameters) keyParams).getParameters().getP().bitLength();
}
else if (keyParams instanceof ECKeyParameters)
{
// TODO: how to get key length from these?
return UNKNOWN_KEY_SIZE;
}
LOG.warning("Don't know how to get key size from parameters " + keyParams);
return UNKNOWN_KEY_SIZE;
}
示例2: init
import org.bouncycastle.crypto.params.ECKeyParameters; //导入依赖的package包/类
/**
* Initialise the ECIES-KEM.
*
* @param key the recipient's public (for encryption) or private (for decryption) key.
*/
public void init(CipherParameters key)
throws IllegalArgumentException
{
if (!(key instanceof ECKeyParameters))
{
throw new IllegalArgumentException("EC key required");
}
else
{
this.key = (ECKeyParameters)key;
}
}
示例3: engineGetOutputSize
import org.bouncycastle.crypto.params.ECKeyParameters; //导入依赖的package包/类
public int engineGetOutputSize(int inputLen)
{
int len1, len2, len3;
if (key == null)
{
throw new IllegalStateException("cipher not initialised");
}
len1 = engine.getMac().getMacSize();
if (otherKeyParameter == null)
{
len2 = 1 + 2 * (((ECKeyParameters)key).getParameters().getCurve().getFieldSize() + 7) / 8;
}
else
{
len2 = 0;
}
if (engine.getCipher() == null)
{
len3 = inputLen;
}
else if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE)
{
len3 = engine.getCipher().getOutputSize(inputLen);
}
else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE)
{
len3 = engine.getCipher().getOutputSize(inputLen - len1 - len2);
}
else
{
throw new IllegalStateException("cipher not initialised");
}
if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE)
{
return buffer.size() + len1 + len2 + len3;
}
else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE)
{
return buffer.size() - len1 - len2 + len3;
}
else
{
throw new IllegalStateException("cipher not initialised");
}
}