本文整理汇总了Java中sun.security.util.ECUtil.decodePoint方法的典型用法代码示例。如果您正苦于以下问题：Java ECUtil.decodePoint方法的具体用法？Java ECUtil.decodePoint怎么用？Java ECUtil.decodePoint使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类sun.security.util.ECUtil的用法示例。
在下文中一共展示了ECUtil.decodePoint方法的4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: generateKeyPair
import sun.security.util.ECUtil; //导入方法依赖的package包/类
@Override
public KeyPair generateKeyPair() {
byte[] encodedParams =
ECUtil.encodeECParameterSpec(null, (ECParameterSpec)params);
// seed is twice the key size (in bytes) plus 1
byte[] seed = new byte[(((keySize + 7) >> 3) + 1) * 2];
if (random == null) {
random = JCAUtil.getSecureRandom();
}
random.nextBytes(seed);
try {
Object[] keyBytes = generateECKeyPair(keySize, encodedParams, seed);
// The 'params' object supplied above is equivalent to the native
// one so there is no need to fetch it.
// keyBytes[0] is the encoding of the native private key
BigInteger s = new BigInteger(1, (byte[])keyBytes[0]);
PrivateKey privateKey =
new ECPrivateKeyImpl(s, (ECParameterSpec)params);
// keyBytes[1] is the encoding of the native public key
ECPoint w = ECUtil.decodePoint((byte[])keyBytes[1],
((ECParameterSpec)params).getCurve());
PublicKey publicKey =
new ECPublicKeyImpl(w, (ECParameterSpec)params);
return new KeyPair(publicKey, privateKey);
} catch (Exception e) {
throw new ProviderException(e);
}
}
示例2: generateKeyPair
import sun.security.util.ECUtil; //导入方法依赖的package包/类
@Override
public KeyPair generateKeyPair() {
byte[] encodedParams =
ECUtil.encodeECParameterSpec(null, (ECParameterSpec)params);
// seed is twice the key size (in bytes) plus 1
byte[] seed = new byte[(((keySize + 7) >> 3) + 1) * 2];
if (random == null) {
random = JCAUtil.getSecureRandom();
}
random.nextBytes(seed);
try {
long[] handles = generateECKeyPair(keySize, encodedParams, seed);
// The 'params' object supplied above is equivalent to the native
// one so there is no need to fetch it.
// handles[0] points to the native private key
BigInteger s = new BigInteger(1, getEncodedBytes(handles[0]));
PrivateKey privateKey =
new ECPrivateKeyImpl(s, (ECParameterSpec)params);
// handles[1] points to the native public key
ECPoint w = ECUtil.decodePoint(getEncodedBytes(handles[1]),
((ECParameterSpec)params).getCurve());
PublicKey publicKey =
new ECPublicKeyImpl(w, (ECParameterSpec)params);
return new KeyPair(publicKey, privateKey);
} catch (Exception e) {
throw new ProviderException(e);
}
}
示例3: decodePoint
import sun.security.util.ECUtil; //导入方法依赖的package包/类
static ECPoint decodePoint(byte[] encoded, EllipticCurve curve)
throws java.io.IOException {
return ECUtil.decodePoint(encoded, curve);
}
示例4: decodePoint
import sun.security.util.ECUtil; //导入方法依赖的package包/类
static ECPoint decodePoint(byte[] encoded, EllipticCurve curve) throws IOException {
return ECUtil.decodePoint(encoded, curve);
}