org.bouncycastle.jcajce.provider.asymmetric.util

Class ECUtil

java.lang.Object

org.bouncycastle.jcajce.provider.asymmetric.util.ECUtil

public class ECUtil
extends Object

utility class for converting jce/jca ECDSA, ECDH, and ECDHC objects into their org.bouncycastle.crypto counterparts.

Constructor Summary

Constructors

Constructor and Description
ECUtil()

Method Summary

Modifier and Type	Method and Description
static AsymmetricKeyParameter	generatePrivateKeyParameter(PrivateKey key)
static AsymmetricKeyParameter	generatePublicKeyParameter(PublicKey key)
static String	getCurveName(ASN1ObjectIdentifier oid)
static X9ECParameters	getNamedCurveByName(String curveName)
static X9ECParameters	getNamedCurveByOid(ASN1ObjectIdentifier oid)
static ASN1ObjectIdentifier	getNamedCurveOid(ECParameterSpec ecParameterSpec)
static ASN1ObjectIdentifier	getNamedCurveOid(String curveName)
static int	getOrderBitLength(BigInteger order, BigInteger privateValue)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ECUtil

public ECUtil()

Method Detail

generatePublicKeyParameter

public static AsymmetricKeyParameter generatePublicKeyParameter(PublicKey key)
                                                         throws InvalidKeyException

Throws:

InvalidKeyException

generatePrivateKeyParameter

public static AsymmetricKeyParameter generatePrivateKeyParameter(PrivateKey key)
                                                          throws InvalidKeyException

Throws:

InvalidKeyException

getOrderBitLength

public static int getOrderBitLength(BigInteger order,
                                    BigInteger privateValue)

getNamedCurveOid

public static ASN1ObjectIdentifier getNamedCurveOid(String curveName)

getNamedCurveOid

public static ASN1ObjectIdentifier getNamedCurveOid(ECParameterSpec ecParameterSpec)

getNamedCurveByOid

public static X9ECParameters getNamedCurveByOid(ASN1ObjectIdentifier oid)

getNamedCurveByName

public static X9ECParameters getNamedCurveByName(String curveName)

getCurveName

public static String getCurveName(ASN1ObjectIdentifier oid)