public class ECUtil
extends java.lang.Object
Constructor and Description |
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ECUtil() |
Modifier and Type | Method and Description |
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static AsymmetricKeyParameter |
generatePrivateKeyParameter(java.security.PrivateKey key) |
static AsymmetricKeyParameter |
generatePublicKeyParameter(java.security.PublicKey key) |
static java.lang.String |
getCurveName(ASN1ObjectIdentifier oid) |
static X9ECParameters |
getNamedCurveByOid(ASN1ObjectIdentifier oid) |
static ASN1ObjectIdentifier |
getNamedCurveOid(java.lang.String name) |
static int |
getOrderBitLength(java.math.BigInteger order,
java.math.BigInteger privateValue) |
public static AsymmetricKeyParameter generatePublicKeyParameter(java.security.PublicKey key) throws java.security.InvalidKeyException
java.security.InvalidKeyException
public static AsymmetricKeyParameter generatePrivateKeyParameter(java.security.PrivateKey key) throws java.security.InvalidKeyException
java.security.InvalidKeyException
public static int getOrderBitLength(java.math.BigInteger order, java.math.BigInteger privateValue)
public static ASN1ObjectIdentifier getNamedCurveOid(java.lang.String name)
public static X9ECParameters getNamedCurveByOid(ASN1ObjectIdentifier oid)
public static java.lang.String getCurveName(ASN1ObjectIdentifier oid)