Package org.apache.sshd.common.kex

Interface KeyExchange

All Superinterfaces:

NamedResource, SessionContextHolder, SessionHolder<Session>

All Known Implementing Classes:

AbstractDHClientKeyExchange, AbstractDHKeyExchange, AbstractDHServerKeyExchange, DHGClient, DHGEXClient, DHGEXServer, DHGServer

public interface KeyExchange
extends NamedResource, SessionHolder<Session>

Key exchange algorithm.

Author:

Apache MINA SSHD Project

Field Summary

Fields

Modifier and Type	Field	Description
static NavigableMap<Integer,String>	GROUP_KEX_OPCODES_MAP
static NavigableMap<Integer,String>	SIMPLE_KEX_OPCODES_MAP

Fields inherited from interface org.apache.sshd.common.NamedResource

BY_NAME_COMPARATOR, NAME_EXTRACTOR

Method Summary

Modifier and Type	Method	Description
static String	getGroupKexOpcodeName(int cmd)
byte[]	getH()	Retrieves the computed h parameter
Digest	getHash()	The message digest used by this key exchange algorithm.
byte[]	getK()	Retrieves the computed k parameter
static String	getSimpleKexOpcodeName(int cmd)
void	init(byte[] v_s, byte[] v_c, byte[] i_s, byte[] i_c)	Initialize the key exchange algorithm.
static boolean	isValidDHValue(BigInteger value, BigInteger p)
boolean	next(int cmd, Buffer buffer)	Process the next packet

Methods inherited from interface org.apache.sshd.common.NamedResource

getName

Methods inherited from interface org.apache.sshd.common.session.SessionHolder

getSession, getSessionContext

Field Detail

GROUP_KEX_OPCODES_MAP

static final NavigableMap<Integer,String> GROUP_KEX_OPCODES_MAP

SIMPLE_KEX_OPCODES_MAP

static final NavigableMap<Integer,String> SIMPLE_KEX_OPCODES_MAP

Method Detail

init

void init(byte[] v_s,
          byte[] v_c,
          byte[] i_s,
          byte[] i_c)
   throws Exception

Initialize the key exchange algorithm.

Parameters:

v_s - the server identification string

v_c - the client identification string

i_s - the server key initialization packet

i_c - the client key initialization packet

Throws:

Exception - if an error occurs

next

boolean next(int cmd,
             Buffer buffer)
      throws Exception

Process the next packet

Parameters:

cmd - the command

buffer - the packet contents positioned after the command

Returns:

a boolean indicating if the processing is complete or if more packets are to be received

Throws:

Exception - if an error occurs

getHash

Digest getHash()

The message digest used by this key exchange algorithm.

Returns:

the message digest

getH

byte[] getH()

Retrieves the computed h parameter

Returns:

The h parameter

getK

byte[] getK()

Retrieves the computed k parameter

Returns:

The k parameter

getGroupKexOpcodeName

static String getGroupKexOpcodeName(int cmd)

getSimpleKexOpcodeName

static String getSimpleKexOpcodeName(int cmd)

isValidDHValue

static boolean isValidDHValue(BigInteger value,
                              BigInteger p)