public class ECUtil
extends java.lang.Object
| Constructor and Description |
|---|
ECUtil() |
| Modifier and Type | Method and Description |
|---|---|
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.InvalidKeyExceptionpublic static AsymmetricKeyParameter generatePrivateKeyParameter(java.security.PrivateKey key) throws java.security.InvalidKeyException
java.security.InvalidKeyExceptionpublic 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)