org.bouncycastle.crypto.tls

Class TlsECCUtils

java.lang.Object

org.bouncycastle.crypto.tls.TlsECCUtils

public class TlsECCUtils
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.Integer	EXT_ec_point_formats
static java.lang.Integer	EXT_elliptic_curves

Constructor Summary

Constructors

Constructor and Description
TlsECCUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static void	addSupportedEllipticCurvesExtension(java.util.Hashtable extensions, int[] namedCurves)
static void	addSupportedPointFormatsExtension(java.util.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 java.math.BigInteger	deserializeECFieldElement(int fieldSize, byte[] encoding)
static ECPoint	deserializeECPoint(short[] ecPointFormats, ECCurve curve, byte[] encoding)
static ECPublicKeyParameters	deserializeECPublicKey(short[] ecPointFormats, ECDomainParameters curve_params, byte[] encoding)
static AsymmetricCipherKeyPair	generateECKeyPair(java.security.SecureRandom random, ECDomainParameters ecParams)
static ECPrivateKeyParameters	generateEphemeralClientKeyExchange(java.security.SecureRandom random, short[] ecPointFormats, ECDomainParameters ecParams, java.io.OutputStream output)
static java.lang.String	getNameOfNamedCurve(int namedCurve)
static ECDomainParameters	getParametersForNamedCurve(int namedCurve)
static int[]	getSupportedEllipticCurvesExtension(java.util.Hashtable extensions)
static short[]	getSupportedPointFormatsExtension(java.util.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, java.io.InputStream input)
static java.math.BigInteger	readECFieldElement(int fieldSize, java.io.InputStream input)
static java.math.BigInteger	readECParameter(java.io.InputStream input)
static ECDomainParameters	readECParameters(int[] namedCurves, short[] ecPointFormats, java.io.InputStream input)
static int[]	readSupportedEllipticCurvesExtension(byte[] extensionData)
static short[]	readSupportedPointFormatsExtension(byte[] extensionData)
static byte[]	serializeECFieldElement(int fieldSize, java.math.BigInteger x)
static byte[]	serializeECPoint(short[] ecPointFormats, ECPoint point)
static byte[]	serializeECPublicKey(short[] ecPointFormats, ECPublicKeyParameters keyParameters)
static ECPublicKeyParameters	validateECPublicKey(ECPublicKeyParameters key)
static void	writeECExponent(int k, java.io.OutputStream output)
static void	writeECFieldElement(ECFieldElement x, java.io.OutputStream output)
static void	writeECFieldElement(int fieldSize, java.math.BigInteger x, java.io.OutputStream output)
static void	writeECParameter(java.math.BigInteger x, java.io.OutputStream output)
static void	writeECPoint(short[] ecPointFormats, ECPoint point, java.io.OutputStream output)
static void	writeExplicitECParameters(short[] ecPointFormats, ECDomainParameters ecParameters, java.io.OutputStream output)
static void	writeNamedECParameters(int namedCurve, java.io.OutputStream output)

Methods inherited from class java.lang.Object

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

Field Detail

EXT_elliptic_curves

public static final java.lang.Integer EXT_elliptic_curves

EXT_ec_point_formats

public static final java.lang.Integer EXT_ec_point_formats

Constructor Detail

TlsECCUtils

public TlsECCUtils()

Method Detail

addSupportedEllipticCurvesExtension

public static void addSupportedEllipticCurvesExtension(java.util.Hashtable extensions,
                                       int[] namedCurves)
                                                throws java.io.IOException

Throws:

java.io.IOException

addSupportedPointFormatsExtension

public static void addSupportedPointFormatsExtension(java.util.Hashtable extensions,
                                     short[] ecPointFormats)
                                              throws java.io.IOException

Throws:

java.io.IOException

getSupportedEllipticCurvesExtension

public static int[] getSupportedEllipticCurvesExtension(java.util.Hashtable extensions)
                                                 throws java.io.IOException

Throws:

java.io.IOException

getSupportedPointFormatsExtension

public static short[] getSupportedPointFormatsExtension(java.util.Hashtable extensions)
                                                 throws java.io.IOException

Throws:

java.io.IOException

createSupportedEllipticCurvesExtension

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

Throws:

java.io.IOException

createSupportedPointFormatsExtension

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

Throws:

java.io.IOException

readSupportedEllipticCurvesExtension

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

Throws:

java.io.IOException

readSupportedPointFormatsExtension

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

Throws:

java.io.IOException

getNameOfNamedCurve

public static java.lang.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,
                             java.math.BigInteger x)
                                      throws java.io.IOException

Throws:

java.io.IOException

serializeECPoint

public static byte[] serializeECPoint(short[] ecPointFormats,
                      ECPoint point)
                               throws java.io.IOException

Throws:

java.io.IOException

serializeECPublicKey

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

Throws:

java.io.IOException

deserializeECFieldElement

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

Throws:

java.io.IOException

deserializeECPoint

public static ECPoint deserializeECPoint(short[] ecPointFormats,
                         ECCurve curve,
                         byte[] encoding)
                                  throws java.io.IOException

Throws:

java.io.IOException

deserializeECPublicKey

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

Throws:

java.io.IOException

calculateECDHBasicAgreement

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

generateECKeyPair

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

generateEphemeralClientKeyExchange

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

Throws:

java.io.IOException

validateECPublicKey

public static ECPublicKeyParameters validateECPublicKey(ECPublicKeyParameters key)
                                                 throws java.io.IOException

Throws:

java.io.IOException

readECExponent

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

Throws:

java.io.IOException

readECFieldElement

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

Throws:

java.io.IOException

readECParameter

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

Throws:

java.io.IOException

readECParameters

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

Throws:

java.io.IOException

writeECExponent

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

Throws:

java.io.IOException

writeECFieldElement

public static void writeECFieldElement(ECFieldElement x,
                       java.io.OutputStream output)
                                throws java.io.IOException

Throws:

java.io.IOException

writeECFieldElement

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

Throws:

java.io.IOException

writeECParameter

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

Throws:

java.io.IOException

writeExplicitECParameters

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

Throws:

java.io.IOException

writeECPoint

public static void writeECPoint(short[] ecPointFormats,
                ECPoint point,
                java.io.OutputStream output)
                         throws java.io.IOException

Throws:

java.io.IOException

writeNamedECParameters

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

Throws:

java.io.IOException