Package com.sshtools.common.ssh.components.jce

Class ECUtils

java.lang.Object

com.sshtools.common.ssh.components.jce.ECUtils

public class ECUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
ECUtils()

Method Summary

Modifier and Type	Method	Description
static ECPublicKey	convertKey(byte[] encodedKey)
static ECPublicKey	decodeJCEKey(byte[] encoded)
static ECPublicKey	decodeKey(byte[] encoded, String namedCurve)
static ECPrivateKey	decodePrivateKey(byte[] key, ECPublicKey pub)
static byte[]	ensureLeadingZero(byte[] x)
static ECPoint	fromByteArray(byte[] b, EllipticCurve curve)
static String	getNameFromEncodedKey(PrivateKey prv)
static byte[]	getOidBytes(String curve)
static byte[]	stripLeadingZeros(byte[] b)
static byte[]	toByteArray(ECPoint e, EllipticCurve curve)

Methods inherited from class java.lang.Object

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

Constructor Details

ECUtils

public ECUtils()

Method Details

toByteArray

public static byte[] toByteArray(ECPoint e,
 EllipticCurve curve)

fromByteArray

public static ECPoint fromByteArray(byte[] b,
 EllipticCurve curve)

ensureLeadingZero

public static byte[] ensureLeadingZero(byte[] x)

getNameFromEncodedKey

public static String getNameFromEncodedKey(PrivateKey prv)

convertKey

public static ECPublicKey convertKey(byte[] encodedKey)
                              throws InvalidKeySpecException

Throws:

InvalidKeySpecException

decodePrivateKey

public static ECPrivateKey decodePrivateKey(byte[] key,
 ECPublicKey pub)
                                     throws InvalidKeySpecException

Throws:

InvalidKeySpecException

stripLeadingZeros

public static byte[] stripLeadingZeros(byte[] b)

decodeKey

public static ECPublicKey decodeKey(byte[] encoded,
 String namedCurve)
                             throws IOException,
InvalidKeySpecException,
NoSuchAlgorithmException,
InvalidAlgorithmParameterException

Throws:

IOException

InvalidKeySpecException

NoSuchAlgorithmException

InvalidAlgorithmParameterException

decodeJCEKey

public static ECPublicKey decodeJCEKey(byte[] encoded)
                                throws IOException,
InvalidKeySpecException,
NoSuchAlgorithmException,
InvalidAlgorithmParameterException

Throws:

IOException

InvalidKeySpecException

NoSuchAlgorithmException

InvalidAlgorithmParameterException

getOidBytes

public static byte[] getOidBytes(String curve)