org.bouncycastle.crypto.tls

Class TlsUtils

java.lang.Object

org.bouncycastle.crypto.tls.TlsUtils

public class TlsUtils
extends java.lang.Object

Some helper functions for MicroTLS.

Field Summary

Fields

Modifier and Type	Field and Description
static byte[]	EMPTY_BYTES
static int[]	EMPTY_INTS
static long[]	EMPTY_LONGS
static short[]	EMPTY_SHORTS
static java.lang.Integer	EXT_signature_algorithms

Constructor Summary

Constructors

Constructor and Description
TlsUtils()

Method Summary

Modifier and Type	Method and Description
static void	addSignatureAlgorithmsExtension(java.util.Hashtable extensions, java.util.Vector supportedSignatureAlgorithms) Add a 'signature_algorithms' extension to existing extensions.
static void	checkUint16(int i)
static void	checkUint16(long i)
static void	checkUint24(int i)
static void	checkUint24(long i)
static void	checkUint32(long i)
static void	checkUint48(long i)
static void	checkUint64(long i)
static void	checkUint8(int i)
static void	checkUint8(long i)
static void	checkUint8(short i)
static Digest	cloneHash(short hashAlgorithm, Digest hash)
static Digest	clonePRFHash(int prfAlgorithm, Digest hash)
static Digest	createHash(short hashAlgorithm)
static Digest	createHash(SignatureAndHashAlgorithm signatureAndHashAlgorithm)
static Digest	createPRFHash(int prfAlgorithm)
static byte[]	createSignatureAlgorithmsExtension(java.util.Vector supportedSignatureAlgorithms) Create a 'signature_algorithms' extension value.
static TlsSigner	createTlsSigner(short clientCertificateType)
static byte[]	encodeOpaque8(byte[] buf)
static void	encodeSupportedSignatureAlgorithms(java.util.Vector supportedSignatureAlgorithms, boolean allowAnonymous, java.io.OutputStream output)
static byte[]	encodeUint16ArrayWithUint16Length(int[] uints)
static byte[]	encodeUint8ArrayWithUint8Length(short[] uints)
static java.util.Vector	getAllSignatureAlgorithms()
static int	getCipherType(int ciphersuite)
static java.util.Vector	getDefaultDSSSignatureAlgorithms()
static java.util.Vector	getDefaultECDSASignatureAlgorithms()
static java.util.Vector	getDefaultRSASignatureAlgorithms()
static java.util.Vector	getDefaultSupportedSignatureAlgorithms()
static int	getEncryptionAlgorithm(int ciphersuite)
static byte[]	getExtensionData(java.util.Hashtable extensions, java.lang.Integer extensionType)
static short	getHashAlgorithmForPRFAlgorithm(int prfAlgorithm)
static int	getKeyExchangeAlgorithm(int ciphersuite)
static int	getMACAlgorithm(int ciphersuite)
static ProtocolVersion	getMinimumVersion(int ciphersuite)
static ASN1ObjectIdentifier	getOIDForHashAlgorithm(short hashAlgorithm)
static java.util.Vector	getSignatureAlgorithmsExtension(java.util.Hashtable extensions) Get a 'signature_algorithms' extension from extensions.
static SignatureAndHashAlgorithm	getSignatureAndHashAlgorithm(TlsContext context, TlsSignerCredentials signerCredentials)
static java.util.Vector	getUsableSignatureAlgorithms(java.util.Vector sigHashAlgs)
static boolean	hasExpectedEmptyExtensionData(java.util.Hashtable extensions, java.lang.Integer extensionType, short alertDescription)
static boolean	hasSigningCapability(short clientCertificateType)
static TlsSession	importSession(byte[] sessionID, SessionParameters sessionParameters)
static boolean	isAEADCipherSuite(int ciphersuite)
static boolean	isBlockCipherSuite(int ciphersuite)
static boolean	isSignatureAlgorithmsExtensionAllowed(ProtocolVersion clientVersion)
static boolean	isSSL(TlsContext context)
static boolean	isStreamCipherSuite(int ciphersuite)
static boolean	isTLSv11(ProtocolVersion version)
static boolean	isTLSv11(TlsContext context)
static boolean	isTLSv12(ProtocolVersion version)
static boolean	isTLSv12(TlsContext context)
static boolean	isValidCipherSuiteForSignatureAlgorithms(int cipherSuite, java.util.Vector sigAlgs)
static boolean	isValidCipherSuiteForVersion(int cipherSuite, ProtocolVersion serverVersion)
static boolean	isValidUint16(int i)
static boolean	isValidUint16(long i)
static boolean	isValidUint24(int i)
static boolean	isValidUint24(long i)
static boolean	isValidUint32(long i)
static boolean	isValidUint48(long i)
static boolean	isValidUint64(long i)
static boolean	isValidUint8(int i)
static boolean	isValidUint8(long i)
static boolean	isValidUint8(short i)
static java.util.Vector	parseSupportedSignatureAlgorithms(boolean allowAnonymous, java.io.InputStream input)
static byte[]	PRF_legacy(byte[] secret, java.lang.String asciiLabel, byte[] seed, int size)
static byte[]	PRF(TlsContext context, byte[] secret, java.lang.String asciiLabel, byte[] seed, int size)
static byte[]	readAllOrNothing(int length, java.io.InputStream input)
static ASN1Primitive	readASN1Object(byte[] encoding)
static ASN1Primitive	readDERObject(byte[] encoding)
static void	readFully(byte[] buf, java.io.InputStream input)
static byte[]	readFully(int length, java.io.InputStream input)
static byte[]	readOpaque16(java.io.InputStream input)
static byte[]	readOpaque24(java.io.InputStream input)
static byte[]	readOpaque8(java.io.InputStream input)
static java.util.Vector	readSignatureAlgorithmsExtension(byte[] extensionData) Read 'signature_algorithms' extension data.
static int	readUint16(byte[] buf, int offset)
static int	readUint16(java.io.InputStream input)
static int[]	readUint16Array(int count, java.io.InputStream input)
static int	readUint24(byte[] buf, int offset)
static int	readUint24(java.io.InputStream input)
static long	readUint32(byte[] buf, int offset)
static long	readUint32(java.io.InputStream input)
static long	readUint48(byte[] buf, int offset)
static long	readUint48(java.io.InputStream input)
static short	readUint8(byte[] buf, int offset)
static short	readUint8(java.io.InputStream input)
static short[]	readUint8Array(int count, java.io.InputStream input)
static ProtocolVersion	readVersion(byte[] buf, int offset)
static ProtocolVersion	readVersion(java.io.InputStream input)
static int	readVersionRaw(byte[] buf, int offset)
static int	readVersionRaw(java.io.InputStream input)
static void	verifySupportedSignatureAlgorithm(java.util.Vector supportedSignatureAlgorithms, SignatureAndHashAlgorithm signatureAlgorithm)
static void	writeGMTUnixTime(byte[] buf, int offset)
static void	writeOpaque16(byte[] buf, java.io.OutputStream output)
static void	writeOpaque24(byte[] buf, java.io.OutputStream output)
static void	writeOpaque8(byte[] buf, java.io.OutputStream output)
static void	writeUint16(int i, byte[] buf, int offset)
static void	writeUint16(int i, java.io.OutputStream output)
static void	writeUint16Array(int[] uints, byte[] buf, int offset)
static void	writeUint16Array(int[] uints, java.io.OutputStream output)
static void	writeUint16ArrayWithUint16Length(int[] uints, byte[] buf, int offset)
static void	writeUint16ArrayWithUint16Length(int[] uints, java.io.OutputStream output)
static void	writeUint24(int i, byte[] buf, int offset)
static void	writeUint24(int i, java.io.OutputStream output)
static void	writeUint32(long i, byte[] buf, int offset)
static void	writeUint32(long i, java.io.OutputStream output)
static void	writeUint48(long i, byte[] buf, int offset)
static void	writeUint48(long i, java.io.OutputStream output)
static void	writeUint64(long i, byte[] buf, int offset)
static void	writeUint64(long i, java.io.OutputStream output)
static void	writeUint8(int i, byte[] buf, int offset)
static void	writeUint8(int i, java.io.OutputStream output)
static void	writeUint8(short i, byte[] buf, int offset)
static void	writeUint8(short i, java.io.OutputStream output)
static void	writeUint8Array(short[] uints, byte[] buf, int offset)
static void	writeUint8Array(short[] uints, java.io.OutputStream output)
static void	writeUint8ArrayWithUint8Length(short[] uints, byte[] buf, int offset)
static void	writeUint8ArrayWithUint8Length(short[] uints, java.io.OutputStream output)
static void	writeVersion(ProtocolVersion version, byte[] buf, int offset)
static void	writeVersion(ProtocolVersion version, java.io.OutputStream output)

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_BYTES

public static final byte[] EMPTY_BYTES

EMPTY_SHORTS

public static final short[] EMPTY_SHORTS

EMPTY_INTS

public static final int[] EMPTY_INTS

EMPTY_LONGS

public static final long[] EMPTY_LONGS

EXT_signature_algorithms

public static final java.lang.Integer EXT_signature_algorithms

Constructor Detail

TlsUtils

public TlsUtils()

Method Detail

checkUint8

public static void checkUint8(short i)
                       throws java.io.IOException

Throws:

java.io.IOException

checkUint8

public static void checkUint8(int i)
                       throws java.io.IOException

Throws:

java.io.IOException

checkUint8

public static void checkUint8(long i)
                       throws java.io.IOException

Throws:

java.io.IOException

checkUint16

public static void checkUint16(int i)
                        throws java.io.IOException

Throws:

java.io.IOException

checkUint16

public static void checkUint16(long i)
                        throws java.io.IOException

Throws:

java.io.IOException

checkUint24

public static void checkUint24(int i)
                        throws java.io.IOException

Throws:

java.io.IOException

checkUint24

public static void checkUint24(long i)
                        throws java.io.IOException

Throws:

java.io.IOException

checkUint32

public static void checkUint32(long i)
                        throws java.io.IOException

Throws:

java.io.IOException

checkUint48

public static void checkUint48(long i)
                        throws java.io.IOException

Throws:

java.io.IOException

checkUint64

public static void checkUint64(long i)
                        throws java.io.IOException

Throws:

java.io.IOException

isValidUint8

public static boolean isValidUint8(short i)

isValidUint8

public static boolean isValidUint8(int i)

isValidUint8

public static boolean isValidUint8(long i)

isValidUint16

public static boolean isValidUint16(int i)

isValidUint16

public static boolean isValidUint16(long i)

isValidUint24

public static boolean isValidUint24(int i)

isValidUint24

public static boolean isValidUint24(long i)

isValidUint32

public static boolean isValidUint32(long i)

isValidUint48

public static boolean isValidUint48(long i)

isValidUint64

public static boolean isValidUint64(long i)

isSSL

public static boolean isSSL(TlsContext context)

isTLSv11

public static boolean isTLSv11(ProtocolVersion version)

isTLSv11

public static boolean isTLSv11(TlsContext context)

isTLSv12

public static boolean isTLSv12(ProtocolVersion version)

isTLSv12

public static boolean isTLSv12(TlsContext context)

writeUint8

public static void writeUint8(short i,
                              java.io.OutputStream output)
                       throws java.io.IOException

Throws:

java.io.IOException

writeUint8

public static void writeUint8(int i,
                              java.io.OutputStream output)
                       throws java.io.IOException

Throws:

java.io.IOException

writeUint8

public static void writeUint8(short i,
                              byte[] buf,
                              int offset)

writeUint8

public static void writeUint8(int i,
                              byte[] buf,
                              int offset)

writeUint16

public static void writeUint16(int i,
                               java.io.OutputStream output)
                        throws java.io.IOException

Throws:

java.io.IOException

writeUint16

public static void writeUint16(int i,
                               byte[] buf,
                               int offset)

writeUint24

public static void writeUint24(int i,
                               java.io.OutputStream output)
                        throws java.io.IOException

Throws:

java.io.IOException

writeUint24

public static void writeUint24(int i,
                               byte[] buf,
                               int offset)

writeUint32

public static void writeUint32(long i,
                               java.io.OutputStream output)
                        throws java.io.IOException

Throws:

java.io.IOException

writeUint32

public static void writeUint32(long i,
                               byte[] buf,
                               int offset)

writeUint48

public static void writeUint48(long i,
                               java.io.OutputStream output)
                        throws java.io.IOException

Throws:

java.io.IOException

writeUint48

public static void writeUint48(long i,
                               byte[] buf,
                               int offset)

writeUint64

public static void writeUint64(long i,
                               java.io.OutputStream output)
                        throws java.io.IOException

Throws:

java.io.IOException

writeUint64

public static void writeUint64(long i,
                               byte[] buf,
                               int offset)

writeOpaque8

public static void writeOpaque8(byte[] buf,
                                java.io.OutputStream output)
                         throws java.io.IOException

Throws:

java.io.IOException

writeOpaque16

public static void writeOpaque16(byte[] buf,
                                 java.io.OutputStream output)
                          throws java.io.IOException

Throws:

java.io.IOException

writeOpaque24

public static void writeOpaque24(byte[] buf,
                                 java.io.OutputStream output)
                          throws java.io.IOException

Throws:

java.io.IOException

writeUint8Array

public static void writeUint8Array(short[] uints,
                                   java.io.OutputStream output)
                            throws java.io.IOException

Throws:

java.io.IOException

writeUint8Array

public static void writeUint8Array(short[] uints,
                                   byte[] buf,
                                   int offset)
                            throws java.io.IOException

Throws:

java.io.IOException

writeUint8ArrayWithUint8Length

public static void writeUint8ArrayWithUint8Length(short[] uints,
                                                  java.io.OutputStream output)
                                           throws java.io.IOException

Throws:

java.io.IOException

writeUint8ArrayWithUint8Length

public static void writeUint8ArrayWithUint8Length(short[] uints,
                                                  byte[] buf,
                                                  int offset)
                                           throws java.io.IOException

Throws:

java.io.IOException

writeUint16Array

public static void writeUint16Array(int[] uints,
                                    java.io.OutputStream output)
                             throws java.io.IOException

Throws:

java.io.IOException

writeUint16Array

public static void writeUint16Array(int[] uints,
                                    byte[] buf,
                                    int offset)
                             throws java.io.IOException

Throws:

java.io.IOException

writeUint16ArrayWithUint16Length

public static void writeUint16ArrayWithUint16Length(int[] uints,
                                                    java.io.OutputStream output)
                                             throws java.io.IOException

Throws:

java.io.IOException

writeUint16ArrayWithUint16Length

public static void writeUint16ArrayWithUint16Length(int[] uints,
                                                    byte[] buf,
                                                    int offset)
                                             throws java.io.IOException

Throws:

java.io.IOException

encodeOpaque8

public static byte[] encodeOpaque8(byte[] buf)
                            throws java.io.IOException

Throws:

java.io.IOException

encodeUint8ArrayWithUint8Length

public static byte[] encodeUint8ArrayWithUint8Length(short[] uints)
                                              throws java.io.IOException

Throws:

java.io.IOException

encodeUint16ArrayWithUint16Length

public static byte[] encodeUint16ArrayWithUint16Length(int[] uints)
                                                throws java.io.IOException

Throws:

java.io.IOException

readUint8

public static short readUint8(java.io.InputStream input)
                       throws java.io.IOException

Throws:

java.io.IOException

readUint8

public static short readUint8(byte[] buf,
                              int offset)

readUint16

public static int readUint16(java.io.InputStream input)
                      throws java.io.IOException

Throws:

java.io.IOException

readUint16

public static int readUint16(byte[] buf,
                             int offset)

readUint24

public static int readUint24(java.io.InputStream input)
                      throws java.io.IOException

Throws:

java.io.IOException

readUint24

public static int readUint24(byte[] buf,
                             int offset)

readUint32

public static long readUint32(java.io.InputStream input)
                       throws java.io.IOException

Throws:

java.io.IOException

readUint32

public static long readUint32(byte[] buf,
                              int offset)

readUint48

public static long readUint48(java.io.InputStream input)
                       throws java.io.IOException

Throws:

java.io.IOException

readUint48

public static long readUint48(byte[] buf,
                              int offset)

readAllOrNothing

public static byte[] readAllOrNothing(int length,
                                      java.io.InputStream input)
                               throws java.io.IOException

Throws:

java.io.IOException

readFully

public static byte[] readFully(int length,
                               java.io.InputStream input)
                        throws java.io.IOException

Throws:

java.io.IOException

readFully

public static void readFully(byte[] buf,
                             java.io.InputStream input)
                      throws java.io.IOException

Throws:

java.io.IOException

readOpaque8

public static byte[] readOpaque8(java.io.InputStream input)
                          throws java.io.IOException

Throws:

java.io.IOException

readOpaque16

public static byte[] readOpaque16(java.io.InputStream input)
                           throws java.io.IOException

Throws:

java.io.IOException

readOpaque24

public static byte[] readOpaque24(java.io.InputStream input)
                           throws java.io.IOException

Throws:

java.io.IOException

readUint8Array

public static short[] readUint8Array(int count,
                                     java.io.InputStream input)
                              throws java.io.IOException

Throws:

java.io.IOException

readUint16Array

public static int[] readUint16Array(int count,
                                    java.io.InputStream input)
                             throws java.io.IOException

Throws:

java.io.IOException

readVersion

public static ProtocolVersion readVersion(byte[] buf,
                                          int offset)
                                   throws java.io.IOException

Throws:

java.io.IOException

readVersion

public static ProtocolVersion readVersion(java.io.InputStream input)
                                   throws java.io.IOException

Throws:

java.io.IOException

readVersionRaw

public static int readVersionRaw(byte[] buf,
                                 int offset)
                          throws java.io.IOException

Throws:

java.io.IOException

readVersionRaw

public static int readVersionRaw(java.io.InputStream input)
                          throws java.io.IOException

Throws:

java.io.IOException

readASN1Object

public static ASN1Primitive readASN1Object(byte[] encoding)
                                    throws java.io.IOException

Throws:

java.io.IOException

readDERObject

public static ASN1Primitive readDERObject(byte[] encoding)
                                   throws java.io.IOException

Throws:

java.io.IOException

writeGMTUnixTime

public static void writeGMTUnixTime(byte[] buf,
                                    int offset)

writeVersion

public static void writeVersion(ProtocolVersion version,
                                java.io.OutputStream output)
                         throws java.io.IOException

Throws:

java.io.IOException

writeVersion

public static void writeVersion(ProtocolVersion version,
                                byte[] buf,
                                int offset)

getAllSignatureAlgorithms

public static java.util.Vector getAllSignatureAlgorithms()

getDefaultDSSSignatureAlgorithms

public static java.util.Vector getDefaultDSSSignatureAlgorithms()

getDefaultECDSASignatureAlgorithms

public static java.util.Vector getDefaultECDSASignatureAlgorithms()

getDefaultRSASignatureAlgorithms

public static java.util.Vector getDefaultRSASignatureAlgorithms()

getDefaultSupportedSignatureAlgorithms

public static java.util.Vector getDefaultSupportedSignatureAlgorithms()

getSignatureAndHashAlgorithm

public static SignatureAndHashAlgorithm getSignatureAndHashAlgorithm(TlsContext context,
                                                                     TlsSignerCredentials signerCredentials)
                                                              throws java.io.IOException

Throws:

java.io.IOException

getExtensionData

public static byte[] getExtensionData(java.util.Hashtable extensions,
                                      java.lang.Integer extensionType)

hasExpectedEmptyExtensionData

public static boolean hasExpectedEmptyExtensionData(java.util.Hashtable extensions,
                                                    java.lang.Integer extensionType,
                                                    short alertDescription)
                                             throws java.io.IOException

Throws:

java.io.IOException

importSession

public static TlsSession importSession(byte[] sessionID,
                                       SessionParameters sessionParameters)

isSignatureAlgorithmsExtensionAllowed

public static boolean isSignatureAlgorithmsExtensionAllowed(ProtocolVersion clientVersion)

addSignatureAlgorithmsExtension

public static void addSignatureAlgorithmsExtension(java.util.Hashtable extensions,
                                                   java.util.Vector supportedSignatureAlgorithms)
                                            throws java.io.IOException

Add a 'signature_algorithms' extension to existing extensions.

Parameters:

extensions - A Hashtable to add the extension to.

supportedSignatureAlgorithms - Vector containing at least 1 SignatureAndHashAlgorithm.

Throws:

java.io.IOException

getSignatureAlgorithmsExtension

public static java.util.Vector getSignatureAlgorithmsExtension(java.util.Hashtable extensions)
                                                        throws java.io.IOException

Get a 'signature_algorithms' extension from extensions.

Parameters:

extensions - A Hashtable to get the extension from, if it is present.

Returns:

A Vector containing at least 1 SignatureAndHashAlgorithm, or null.

Throws:

java.io.IOException

createSignatureAlgorithmsExtension

public static byte[] createSignatureAlgorithmsExtension(java.util.Vector supportedSignatureAlgorithms)
                                                 throws java.io.IOException

Create a 'signature_algorithms' extension value.

Parameters:

supportedSignatureAlgorithms - A Vector containing at least 1 SignatureAndHashAlgorithm.

Returns:

A byte array suitable for use as an extension value.

Throws:

java.io.IOException

readSignatureAlgorithmsExtension

public static java.util.Vector readSignatureAlgorithmsExtension(byte[] extensionData)
                                                         throws java.io.IOException

Read 'signature_algorithms' extension data.

Parameters:

extensionData - The extension data.

Returns:

A Vector containing at least 1 SignatureAndHashAlgorithm.

Throws:

java.io.IOException

encodeSupportedSignatureAlgorithms

public static void encodeSupportedSignatureAlgorithms(java.util.Vector supportedSignatureAlgorithms,
                                                      boolean allowAnonymous,
                                                      java.io.OutputStream output)
                                               throws java.io.IOException

Throws:

java.io.IOException

parseSupportedSignatureAlgorithms

public static java.util.Vector parseSupportedSignatureAlgorithms(boolean allowAnonymous,
                                                                 java.io.InputStream input)
                                                          throws java.io.IOException

Throws:

java.io.IOException

verifySupportedSignatureAlgorithm

public static void verifySupportedSignatureAlgorithm(java.util.Vector supportedSignatureAlgorithms,
                                                     SignatureAndHashAlgorithm signatureAlgorithm)
                                              throws java.io.IOException

Throws:

java.io.IOException

PRF

public static byte[] PRF(TlsContext context,
                         byte[] secret,
                         java.lang.String asciiLabel,
                         byte[] seed,
                         int size)

PRF_legacy

public static byte[] PRF_legacy(byte[] secret,
                                java.lang.String asciiLabel,
                                byte[] seed,
                                int size)

createHash

public static Digest createHash(short hashAlgorithm)

createHash

public static Digest createHash(SignatureAndHashAlgorithm signatureAndHashAlgorithm)

cloneHash

public static Digest cloneHash(short hashAlgorithm,
                               Digest hash)

createPRFHash

public static Digest createPRFHash(int prfAlgorithm)

clonePRFHash

public static Digest clonePRFHash(int prfAlgorithm,
                                  Digest hash)

getHashAlgorithmForPRFAlgorithm

public static short getHashAlgorithmForPRFAlgorithm(int prfAlgorithm)

getOIDForHashAlgorithm

public static ASN1ObjectIdentifier getOIDForHashAlgorithm(short hashAlgorithm)

hasSigningCapability

public static boolean hasSigningCapability(short clientCertificateType)

createTlsSigner

public static TlsSigner createTlsSigner(short clientCertificateType)

getCipherType

public static int getCipherType(int ciphersuite)
                         throws java.io.IOException

Throws:

java.io.IOException

getEncryptionAlgorithm

public static int getEncryptionAlgorithm(int ciphersuite)
                                  throws java.io.IOException

Throws:

java.io.IOException

getKeyExchangeAlgorithm

public static int getKeyExchangeAlgorithm(int ciphersuite)
                                   throws java.io.IOException

Throws:

java.io.IOException

getMACAlgorithm

public static int getMACAlgorithm(int ciphersuite)
                           throws java.io.IOException

Throws:

java.io.IOException

getMinimumVersion

public static ProtocolVersion getMinimumVersion(int ciphersuite)

isAEADCipherSuite

public static boolean isAEADCipherSuite(int ciphersuite)
                                 throws java.io.IOException

Throws:

java.io.IOException

isBlockCipherSuite

public static boolean isBlockCipherSuite(int ciphersuite)
                                  throws java.io.IOException

Throws:

java.io.IOException

isStreamCipherSuite

public static boolean isStreamCipherSuite(int ciphersuite)
                                   throws java.io.IOException

Throws:

java.io.IOException

isValidCipherSuiteForSignatureAlgorithms

public static boolean isValidCipherSuiteForSignatureAlgorithms(int cipherSuite,
                                                               java.util.Vector sigAlgs)

isValidCipherSuiteForVersion

public static boolean isValidCipherSuiteForVersion(int cipherSuite,
                                                   ProtocolVersion serverVersion)

getUsableSignatureAlgorithms

public static java.util.Vector getUsableSignatureAlgorithms(java.util.Vector sigHashAlgs)