org.bouncycastle.crypto.tls

Class TlsECCUtils

java.lang.Object

org.bouncycastle.crypto.tls.TlsECCUtils

public class TlsECCUtils
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static Integer	EXT_ec_point_formats
static Integer	EXT_elliptic_curves

Constructor Summary

Constructors

Constructor and Description
TlsECCUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static void	addSupportedEllipticCurvesExtension(Hashtable extensions, int[] namedCurves)
static void	addSupportedPointFormatsExtension(Hashtable extensions, short[] ecPointFormats)
static boolean	areOnSameCurve(ECDomainParameters a, ECDomainParameters b)
static byte[]	calculateECDHBasicAgreement(ECPublicKeyParameters publicKey, ECPrivateKeyParameters privateKey)
static boolean	containsECCCipherSuites(int[] cipherSuites)
static byte[]	createSupportedEllipticCurvesExtension(int[] namedCurves)
static byte[]	createSupportedPointFormatsExtension(short[] ecPointFormats)
static com.joshvm.java.math.BigInteger	deserializeECFieldElement(int fieldSize, byte[] encoding)
static org.bouncycastle.math.ec.ECPoint	deserializeECPoint(short[] ecPointFormats, org.bouncycastle.math.ec.ECCurve curve, byte[] encoding)
static ECPublicKeyParameters	deserializeECPublicKey(short[] ecPointFormats, ECDomainParameters curve_params, byte[] encoding)
static AsymmetricCipherKeyPair	generateECKeyPair(com.joshvm.java.security.SecureRandom random, ECDomainParameters ecParams)
static ECPrivateKeyParameters	generateEphemeralClientKeyExchange(com.joshvm.java.security.SecureRandom random, short[] ecPointFormats, ECDomainParameters ecParams, OutputStream output)
static String	getNameOfNamedCurve(int namedCurve)
static ECDomainParameters	getParametersForNamedCurve(int namedCurve)
static int[]	getSupportedEllipticCurvesExtension(Hashtable extensions)
static short[]	getSupportedPointFormatsExtension(Hashtable extensions)
static boolean	hasAnySupportedNamedCurves()
static boolean	isCompressionPreferred(short[] ecPointFormats, short compressionFormat)
static boolean	isECCCipherSuite(int cipherSuite)
static boolean	isSupportedNamedCurve(int namedCurve)
static int	readECExponent(int fieldSize, InputStream input)
static com.joshvm.java.math.BigInteger	readECFieldElement(int fieldSize, InputStream input)
static com.joshvm.java.math.BigInteger	readECParameter(InputStream input)
static ECDomainParameters	readECParameters(int[] namedCurves, short[] ecPointFormats, InputStream input)
static int[]	readSupportedEllipticCurvesExtension(byte[] extensionData)
static short[]	readSupportedPointFormatsExtension(byte[] extensionData)
static byte[]	serializeECFieldElement(int fieldSize, com.joshvm.java.math.BigInteger x)
static byte[]	serializeECPoint(short[] ecPointFormats, org.bouncycastle.math.ec.ECPoint point)
static byte[]	serializeECPublicKey(short[] ecPointFormats, ECPublicKeyParameters keyParameters)
static ECPublicKeyParameters	validateECPublicKey(ECPublicKeyParameters key)
static void	writeECExponent(int k, OutputStream output)
static void	writeECFieldElement(org.bouncycastle.math.ec.ECFieldElement x, OutputStream output)
static void	writeECFieldElement(int fieldSize, com.joshvm.java.math.BigInteger x, OutputStream output)
static void	writeECParameter(com.joshvm.java.math.BigInteger x, OutputStream output)
static void	writeECPoint(short[] ecPointFormats, org.bouncycastle.math.ec.ECPoint point, OutputStream output)
static void	writeExplicitECParameters(short[] ecPointFormats, ECDomainParameters ecParameters, OutputStream output)
static void	writeNamedECParameters(int namedCurve, OutputStream output)

Methods inherited from class java.lang.Object

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

Field Detail

EXT_elliptic_curves

public static final Integer EXT_elliptic_curves

EXT_ec_point_formats

public static final Integer EXT_ec_point_formats

Constructor Detail

TlsECCUtils

public TlsECCUtils()

Method Detail

addSupportedEllipticCurvesExtension

public static void addSupportedEllipticCurvesExtension(Hashtable extensions,
                                       int[] namedCurves)
                                                throws IOException

Throws:

IOException

addSupportedPointFormatsExtension

public static void addSupportedPointFormatsExtension(Hashtable extensions,
                                     short[] ecPointFormats)
                                              throws IOException

Throws:

IOException

getSupportedEllipticCurvesExtension

public static int[] getSupportedEllipticCurvesExtension(Hashtable extensions)
                                                 throws IOException

Throws:

IOException

getSupportedPointFormatsExtension

public static short[] getSupportedPointFormatsExtension(Hashtable extensions)
                                                 throws IOException

Throws:

IOException

createSupportedEllipticCurvesExtension

public static byte[] createSupportedEllipticCurvesExtension(int[] namedCurves)
                                                     throws IOException

Throws:

IOException

createSupportedPointFormatsExtension

public static byte[] createSupportedPointFormatsExtension(short[] ecPointFormats)
                                                   throws IOException

Throws:

IOException

readSupportedEllipticCurvesExtension

public static int[] readSupportedEllipticCurvesExtension(byte[] extensionData)
                                                  throws IOException

Throws:

IOException

readSupportedPointFormatsExtension

public static short[] readSupportedPointFormatsExtension(byte[] extensionData)
                                                  throws IOException

Throws:

IOException

getNameOfNamedCurve

public static String getNameOfNamedCurve(int namedCurve)

getParametersForNamedCurve

public static ECDomainParameters getParametersForNamedCurve(int namedCurve)

hasAnySupportedNamedCurves

public static boolean hasAnySupportedNamedCurves()

containsECCCipherSuites

public static boolean containsECCCipherSuites(int[] cipherSuites)

isECCCipherSuite

public static boolean isECCCipherSuite(int cipherSuite)

areOnSameCurve

public static boolean areOnSameCurve(ECDomainParameters a,
                     ECDomainParameters b)

isSupportedNamedCurve

public static boolean isSupportedNamedCurve(int namedCurve)

isCompressionPreferred

public static boolean isCompressionPreferred(short[] ecPointFormats,
                             short compressionFormat)

serializeECFieldElement

public static byte[] serializeECFieldElement(int fieldSize,
                             com.joshvm.java.math.BigInteger x)
                                      throws IOException

Throws:

IOException

serializeECPoint

public static byte[] serializeECPoint(short[] ecPointFormats,
                      org.bouncycastle.math.ec.ECPoint point)
                               throws IOException

Throws:

IOException

serializeECPublicKey

public static byte[] serializeECPublicKey(short[] ecPointFormats,
                          ECPublicKeyParameters keyParameters)
                                   throws IOException

Throws:

IOException

deserializeECFieldElement

public static com.joshvm.java.math.BigInteger deserializeECFieldElement(int fieldSize,
                                                        byte[] encoding)
                                                                 throws IOException

Throws:

IOException

deserializeECPoint

public static org.bouncycastle.math.ec.ECPoint deserializeECPoint(short[] ecPointFormats,
                                                  org.bouncycastle.math.ec.ECCurve curve,
                                                  byte[] encoding)
                                                           throws IOException

Throws:

IOException

deserializeECPublicKey

public static ECPublicKeyParameters deserializeECPublicKey(short[] ecPointFormats,
                                           ECDomainParameters curve_params,
                                           byte[] encoding)
                                                    throws IOException

Throws:

IOException

calculateECDHBasicAgreement

public static byte[] calculateECDHBasicAgreement(ECPublicKeyParameters publicKey,
                                 ECPrivateKeyParameters privateKey)

generateECKeyPair

public static AsymmetricCipherKeyPair generateECKeyPair(com.joshvm.java.security.SecureRandom random,
                                        ECDomainParameters ecParams)

generateEphemeralClientKeyExchange

public static ECPrivateKeyParameters generateEphemeralClientKeyExchange(com.joshvm.java.security.SecureRandom random,
                                                        short[] ecPointFormats,
                                                        ECDomainParameters ecParams,
                                                        OutputStream output)
                                                                 throws IOException

Throws:

IOException

validateECPublicKey

public static ECPublicKeyParameters validateECPublicKey(ECPublicKeyParameters key)
                                                 throws IOException

Throws:

IOException

readECExponent

public static int readECExponent(int fieldSize,
                 InputStream input)
                          throws IOException

Throws:

IOException

readECFieldElement

public static com.joshvm.java.math.BigInteger readECFieldElement(int fieldSize,
                                                 InputStream input)
                                                          throws IOException

Throws:

IOException

readECParameter

public static com.joshvm.java.math.BigInteger readECParameter(InputStream input)
                                                       throws IOException

Throws:

IOException

readECParameters

public static ECDomainParameters readECParameters(int[] namedCurves,
                                  short[] ecPointFormats,
                                  InputStream input)
                                           throws IOException

Throws:

IOException

writeECExponent

public static void writeECExponent(int k,
                   OutputStream output)
                            throws IOException

Throws:

IOException

writeECFieldElement

public static void writeECFieldElement(org.bouncycastle.math.ec.ECFieldElement x,
                       OutputStream output)
                                throws IOException

Throws:

IOException

writeECFieldElement

public static void writeECFieldElement(int fieldSize,
                       com.joshvm.java.math.BigInteger x,
                       OutputStream output)
                                throws IOException

Throws:

IOException

writeECParameter

public static void writeECParameter(com.joshvm.java.math.BigInteger x,
                    OutputStream output)
                             throws IOException

Throws:

IOException

writeExplicitECParameters

public static void writeExplicitECParameters(short[] ecPointFormats,
                             ECDomainParameters ecParameters,
                             OutputStream output)
                                      throws IOException

Throws:

IOException

writeECPoint

public static void writeECPoint(short[] ecPointFormats,
                org.bouncycastle.math.ec.ECPoint point,
                OutputStream output)
                         throws IOException

Throws:

IOException

writeNamedECParameters

public static void writeNamedECParameters(int namedCurve,
                          OutputStream output)
                                   throws IOException

Throws:

IOException