SshContext (Common API 3.0.4-FINAL API)

java.lang.Object
- com.sshtools.synergy.nio.ProtocolContext
- - com.sshtools.synergy.ssh.SshContext

All Implemented Interfaces:

Context, ExecutorServiceProvider
```
public abstract class SshContext
extends ProtocolContext
implements ExecutorServiceProvider, Context
```
This class defines an SSH context for listening interfaces on the SshEngine.

Field Summary

Fields
Modifier and Type	Field and Description
`protected com.sshtools.common.util.ByteBufferPool`	`byteBufferPool`
`static java.lang.String`	`CIPHER_AES_GCM_128`
`static java.lang.String`	`CIPHER_AES_GCM_256`
`static java.lang.String`	`CIPHER_AES128_CBC`
`static java.lang.String`	`CIPHER_AES128_CTR`
`static java.lang.String`	`CIPHER_AES192_CBC`
`static java.lang.String`	`CIPHER_AES192_CTR`
`static java.lang.String`	`CIPHER_AES256_CBC`
`static java.lang.String`	`CIPHER_AES256_CTR`
`static java.lang.String`	`CIPHER_ARCFOUR`
`static java.lang.String`	`CIPHER_ARCFOUR_128`
`static java.lang.String`	`CIPHER_ARCFOUR_256`
`static java.lang.String`	`CIPHER_BLOWFISH_CBC`
`static java.lang.String`	`CIPHER_TRIPLEDES_CBC`
`static java.lang.String`	`CIPHER_TRIPLEDES_CTR`
`protected ComponentFactory<SshCipher>`	`ciphersCS`
`protected ComponentFactory<SshCipher>`	`ciphersSC`
`protected ComponentManager`	`componentManager`
`static java.lang.String`	`COMPRESSION_NONE` Compression off
`static java.lang.String`	`COMPRESSION_ZLIB` ZLIB compression
`protected int`	`compressionLevel`
`protected ComponentFactory<SshCompression>`	`compressionsCS`
`protected ComponentFactory<SshCompression>`	`compressionsSC`
`protected SshEngine`	`daemon`
`protected static java.util.concurrent.ExecutorService`	`executor`
`static java.lang.String`	`HMAC_MD5` MD5 message authentication
`static java.lang.String`	`HMAC_MD5_96` MD5 96 bit message authentication
`static java.lang.String`	`HMAC_MD5_ETM`
`static java.lang.String`	`HMAC_RIPEMD160`
`static java.lang.String`	`HMAC_RIPEMD160_ETM`
`static java.lang.String`	`HMAC_SHA1` SHA1 message authentication
`static java.lang.String`	`HMAC_SHA1_96` SHA1 96 bit message authentication
`static java.lang.String`	`HMAC_SHA1_ETM`
`static java.lang.String`	`HMAC_SHA256`
`static java.lang.String`	`HMAC_SHA256_96`
`static java.lang.String`	`HMAC_SHA256_ETM`
`static java.lang.String`	`HMAC_SHA512`
`static java.lang.String`	`HMAC_SHA512_96`
`static java.lang.String`	`HMAC_SHA512_ETM`
`protected int`	`idleAuthenticationTimeoutSeconds`
`protected int`	`idleConnectionTimeout`
`protected int`	`keepAliveDataMaxLength`
`protected int`	`keepAliveInterval`
`static java.lang.String`	`KEX_DIFFIE_HELLMAN_ECDH_NISTP_256`
`static java.lang.String`	`KEX_DIFFIE_HELLMAN_ECDH_NISTP_384`
`static java.lang.String`	`KEX_DIFFIE_HELLMAN_ECDH_NISTP_521`
`static java.lang.String`	`KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA1` Constant for the algorithm name "diffie-hellman-group-exchange-sha1".
`static java.lang.String`	`KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA256`
`static java.lang.String`	`KEX_DIFFIE_HELLMAN_GROUP1_SHA1` Constant for the algorithm name "diffie-hellman-group1-sha1".
`static java.lang.String`	`KEX_DIFFIE_HELLMAN_GROUP14_SHA1` Constant for the algorithm name "diffie-hellman-group14-sha1".
`static java.lang.String`	`KEX_DIFFIE_HELLMAN_GROUP14_SHA256` Constant for the algorithm name "diffie-hellman-group14-sha256".
`static java.lang.String`	`KEX_DIFFIE_HELLMAN_GROUP15_SHA512` Constant for the algorithm name "diffie-hellman-group15-sha512".
`static java.lang.String`	`KEX_DIFFIE_HELLMAN_GROUP16_SHA512` Constant for the algorithm name "diffie-hellman-group16-sha512".
`static java.lang.String`	`KEX_DIFFIE_HELLMAN_GROUP17_SHA512` Constant for the algorithm name "diffie-hellman-group17-sha512".
`static java.lang.String`	`KEX_DIFFIE_HELLMAN_GROUP18_SHA512` Constant for the algorithm name "diffie-hellman-group18-sha512".
`static java.lang.String`	`KEYBOARD_INTERACTIVE_AUTHENTICATION`
`protected ComponentFactory<SshKeyExchange<? extends SshContext>>`	`keyExchanges`
`protected boolean`	`killTunnelsOnRemoteForwardingCancel`
`protected java.util.Locale`	`locale`
`protected ComponentFactory<SshHmac>`	`macCS`
`protected ComponentFactory<SshHmac>`	`macSC`
`protected long`	`MAX_NUM_BYTES_BEFORE_REKEY`
`protected long`	`MAX_NUM_PACKETS_BEFORE_REKEY`
`protected int`	`maxChannels`
`protected int`	`maxDHGroupExchangeKeySize`
`protected int`	`maximumPacketLength`
`protected int`	`maximumSocketsBacklogPerRemotelyForwardedConnection`
`protected int`	`minDHGroupExchangeKeySize`
`static java.lang.String`	`PASSWORD_AUTHENTICATION` Identifier for password authentication
`protected java.lang.String`	`prefCipherCS`
`protected java.lang.String`	`prefCipherSC`
`protected java.lang.String`	`prefCompressionCS`
`protected java.lang.String`	`prefCompressionSC`
`protected int`	`preferredDHGroupExchangeKeySize`
`protected java.lang.String`	`prefKeyExchange`
`protected java.lang.String`	`prefMacCS`
`protected java.lang.String`	`prefMacSC`
`protected java.lang.String`	`prefPublicKey`
`static java.lang.String`	`PUBLIC_KEY_ECDSA_SHA2_NISPTP_256` ECDSA 256 bit Public Key
`static java.lang.String`	`PUBLIC_KEY_ECDSA_SHA2_NISPTP_384` ECDSA 384 bit Public Key
`static java.lang.String`	`PUBLIC_KEY_ECDSA_SHA2_NISPTP_521` ECDSA 521 bit Public Key
`static java.lang.String`	`PUBLIC_KEY_ED25519` ED25519 Public key
`static java.lang.String`	`PUBLIC_KEY_RSA_SHA256` RSA key with SHA256 signature
`static java.lang.String`	`PUBLIC_KEY_RSA_SHA512` RSA key with SHA512 signature
`static java.lang.String`	`PUBLIC_KEY_SSHDSS` SSH2 DSA Public Key
`static java.lang.String`	`PUBLIC_KEY_SSHRSA` SSH2 RSA Public Key
`static java.lang.String`	`PUBLICKEY_AUTHENTICATION` Identifier for public key authentication
`protected ComponentFactory<SshPublicKey>`	`publicKeys`
`protected boolean`	`sendIgnorePacketOnIdle`
`protected SocketConnectionFactory`	`socketConnectionFactory`
`protected java.lang.String`	`softwareVersionComments`

Fields inherited from class com.sshtools.synergy.nio.ProtocolContext
keepAlive, receiveBufferSize, reuseAddress, sendBufferSize, tcpNoDelay

Constructor Summary

Constructors
Constructor and Description
`SshContext(ComponentManager componentManager, SecurityLevel securityLevel)` Constructs a default context but does not set the daemon
`SshContext(SshEngine daemon, ComponentManager componentManager, SecurityLevel securityLevel)` Constructs a default context

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addOperationListener(ExecutorOperationListener listener)`
`protected abstract void`	`configureKeyExchanges()`
`abstract ProtocolEngine`	`createEngine(ConnectRequestFuture connectFuture)` Create a protocol engine.
`void`	`enableFIPSMode()`
`protected AuthenticatedFuture`	`getAuthenticatedFuture()`
`com.sshtools.common.util.ByteBufferPool`	`getByteBufferPool()`
`abstract ChannelFactory<? extends SshContext>`	`getChannelFactory()`
`int`	`getChannelLimit()` Get the maximum number of open channels allowed by each client.
`java.lang.String`	`getCiphersCS()`
`java.lang.String`	`getCiphersSC()` Get the ciphers for the Server->Client stream.
`ComponentManager`	`getComponentManager()`
`int`	`getCompressionLevel()` Get the current compression level
`abstract ConnectionManager<? extends SshContext>`	`getConnectionManager()`
`SshEngineContext`	`getDaemonContext()`
`SshEngine`	`getEngine()` Get the instance of the SSHD for this context.
`java.util.List<ExecutorOperationListener>`	`getExecutorListeners()`
`java.util.concurrent.ExecutorService`	`getExecutorService()`
`abstract ForwardingManager<? extends SshContext>`	`getForwardingManager()`
`ForwardingPolicy`	`getForwardingPolicy()`
`abstract GlobalRequestHandler<? extends SshContext>`	`getGlobalRequestHandler(java.lang.String requestname)`
`java.lang.String`	`getHttpRedirectUrl()`
`int`	`getIdleAuthenticationTimeoutSeconds()`
`int`	`getIdleConnectionTimeoutSeconds()` Should the connection be disconnected on session timeout?
`int`	`getKeepAliveDataMaxLength()` Get the maximum data length for the keep-alive packet.
`int`	`getKeepAliveInterval()` Get the current keep-alive interval (in seconds).
`long`	`getKeyExchangePacketLimit()` Get the number of packets to send before a key exchange is forced
`java.lang.String`	`getKeyExchanges()` Get the ciphers for the Server->Client stream.
`long`	`getKeyExchangeTransferLimit()` Get the number of bytes to transfer before a key exchange is forced.
`java.util.Locale`	`getLocale()`
`java.lang.String`	`getMacsCS()` Get the ciphers for the Client->Server stream.
`java.lang.String`	`getMacsSC()` Get the ciphers for the Server->Client stream.
`int`	`getMaxDHGroupExchangeKeySize()`
`int`	`getMaximumPacketLength()` Get the maximum supported length of an SSH packet.
`int`	`getMaximumSocketsBacklogPerRemotelyForwardedConnection()`
`int`	`getMinDHGroupExchangeKeySize()`
`<P> P`	`getPolicy(java.lang.Class<P> clz)`
`<P> P`	`getPolicy(java.lang.Class<P> clz, P defaultValue)`
`java.lang.String`	`getPreferredCipherCS()` Get the currently preferred cipher for the Client->Server stream.
`java.lang.String`	`getPreferredCipherSC()` Get the currently preferred cipher for the Server->Client stream.
`java.lang.String`	`getPreferredCompressionCS()` Get the currently preferred compression for the Client->Server stream.
`java.lang.String`	`getPreferredCompressionSC()` Get the currently preferred compression for the Server->Client stream.
`int`	`getPreferredDHGroupExchangeKeySize()`
`java.lang.String`	`getPreferredKeyExchange()` Get the currently preferred key exchange method.
`java.lang.String`	`getPreferredMacCS()` Get the currently preferred mac for the Client->Server stream.
`java.lang.String`	`getPreferredMacSC()` Get the currently supported mac for the Server-Client stream.
`abstract java.lang.String`	`getPreferredPublicKey()`
`java.lang.String`	`getPublicKeys()` Get the ciphers for the Server->Client stream.
`boolean`	`getRemoteForwardingCancelKillsTunnels()` Determines whether the cancellation of a remote forwarding drops currently active tunnels
`SocketConnectionFactory`	`getSocketConnectionFactory()`
`java.lang.String`	`getSoftwareVersionComments()` Get the software/version/comments field that is to be used in the SSH protocols negotiation procedure.
`abstract java.lang.String`	`getSupportedPublicKeys()`
`boolean`	`hasPolicy(java.lang.Class<?> clz)`
`void`	`init(SshEngine daemon)` Initialise the SshContext by setting the daemon
`boolean`	`isHttpRedirect()`
`boolean`	`isSendIgnorePacketOnIdle()`
`protected java.lang.String`	`listPublicKeys(java.lang.String... keys)`
`void`	`removeOperationListener(ExecutorOperationListener listener)`
`void`	`setChannelLimit(int maxChannels)` Set the maximum number of open channels allowed by each client (defaults to 100).
`void`	`setCipherPreferredPositionCS(java.lang.String name, int position)`
`void`	`setCipherPreferredPositionSC(java.lang.String name, int position)`
`void`	`setCompressionLevel(int compressionLevel)` Set the compression level to use if compression is enabled
`void`	`setHttpRedirect(boolean httpRedirect)`
`void`	`setHttpRedirectUrl(java.lang.String httpRedirectUrl)`
`void`	`setIdleAuthenticationTimeoutSeconds(int idleAuthenticationTimeoutSeconds)`
`void`	`setIdleConnectionTimeoutSeconds(int idleConnectionTimeout)` Inform the context that the connection should be disconnected on session timeout
`void`	`setKeepAliveDataMaxLength(int keepAliveDataMaxLength)` Set the maximum data length for the keep-alive packet.
`void`	`setKeepAliveInterval(int keepAliveInterval)` Set the keep-alive interval (in seconds).
`void`	`setKeyExchangePacketLimit(int MAX_NUM_PACKETS_BEFORE_REKEY)` This tells the server how many packets to use before a key exchange.
`void`	`setKeyExchangePreferredPosition(java.lang.String name, int position)`
`void`	`setKeyExchangeTransferLimit(long MAX_NUM_BYTES_BEFORE_REKEY)` This limit tells the server when to force a key exchange.
`void`	`setLocale(java.util.Locale locale)`
`void`	`setMacPreferredPositionCS(java.lang.String name, int position)`
`void`	`setMacPreferredPositionSC(java.lang.String name, int position)`
`void`	`setMaxDHGroupExchangeKeySize(int maxDHGroupExchangeKeySize)`
`void`	`setMaximumPacketLength(int maximumPacketLength)` Set the maximum supported length of an SSH packet.
`void`	`setMaximumSocketsBacklogPerRemotelyForwardedConnection(int maximumSocketsBacklogPerRemotelyForwardedConnection)`
`void`	`setMinDHGroupExchangeKeySize(int minDHGroupExchangeKeySize)`
`void`	`setPolicy(java.lang.Class<?> clz, java.lang.Object policy)`
`void`	`setPreferredCipherCS(int[] order)` Set the preferred SC cipher order
`void`	`setPreferredCipherCS(java.lang.String name)` Set the preferred cipher for the Client->Server stream.
`void`	`setPreferredCipherCS(java.lang.String[] order)` Set the preferred CS cipher order
`void`	`setPreferredCipherSC(int[] order)` Set the preferred SC cipher order
`void`	`setPreferredCipherSC(java.lang.String name)` Set the preferred cipher for the Server->Client stream.
`void`	`setPreferredCipherSC(java.lang.String[] order)` Set the preferred SC cipher order
`void`	`setPreferredCompressionCS(java.lang.String name)` Set the preferred compression for the Client->Server stream.
`void`	`setPreferredCompressionSC(java.lang.String name)` Set the preferred compression for the Server->Client stream.
`void`	`setPreferredDHGroupExchangeKeySize(int preferredDHGroupExchangeKeySize)`
`void`	`setPreferredKeyExchange(java.lang.String name)` Set the preferred key exchange method.
`void`	`setPreferredKeyExchange(java.lang.String[] order)`
`void`	`setPreferredMacCS(int[] order)` Set the preferred CS Mac order
`void`	`setPreferredMacCS(java.lang.String name)` Set the preferred MAC for the Client->Server stream.
`void`	`setPreferredMacCS(java.lang.String[] order)`
`void`	`setPreferredMacSC(int[] order)` Set the preferred SC Mac order
`void`	`setPreferredMacSC(java.lang.String name)` Set the preferred mac for the Server->Client stream.
`void`	`setPreferredMacSC(java.lang.String[] order)`
`void`	`setPublicKeyPreferredPosition(java.lang.String name, int position)`
`void`	`setRemoteForwardingCancelKillsTunnels(boolean killTunnelsOnRemoteForwardingCancel)` When the user cancels a remote forwarding should active tunnels be dropped?
`void`	`setSendIgnorePacketOnIdle(boolean sendIgnorePacketOnIdle)`
`void`	`setSocketConnectionFactory(SocketConnectionFactory socketConnectionFactory)`
`void`	`setSoftwareVersionComments(java.lang.String softwareVersionComments)` Set the current implementations software/version/comments field that is used during the SSH protocols negotiation procedure.
`void`	`shutdown()`
`ComponentFactory<SshCipher>`	`supportedCiphersCS()` Returns a factory implementation that enables configuration of the available ciphers.
`ComponentFactory<SshCipher>`	`supportedCiphersSC()`
`ComponentFactory<SshCompression>`	`supportedCompressionsCS()` Get the supported compression algorithms.
`ComponentFactory<SshCompression>`	`supportedCompressionsSC()`
`ComponentFactory<SshKeyExchange<? extends SshContext>>`	`supportedKeyExchanges()` Get the supported key exchange methods.
`ComponentFactory<SshHmac>`	`supportedMacsCS()` Get the supported message authentication algorithms.
`ComponentFactory<SshHmac>`	`supportedMacsSC()`
`ComponentFactory<SshPublicKey>`	`supportedPublicKeys()`

Methods inherited from class com.sshtools.synergy.nio.ProtocolContext
getReceiveBufferSize, getSendBufferSize, getSocketOptionKeepAlive, getSocketOptionReuseAddress, getSocketOptionTcpNoDelay, setReceiveBufferSize, setSendBufferSize, setSocketOptionKeepAlive, setSocketOptionReuseAddress, setSocketOptionTcpNoDelay

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - CIPHER_TRIPLEDES_CBC
```
public static final java.lang.String CIPHER_TRIPLEDES_CBC
```
    See Also:
    
    Constant Field Values
  - CIPHER_TRIPLEDES_CTR
```
public static final java.lang.String CIPHER_TRIPLEDES_CTR
```
    See Also:
    
    Constant Field Values
  - CIPHER_BLOWFISH_CBC
```
public static final java.lang.String CIPHER_BLOWFISH_CBC
```
    See Also:
    
    Constant Field Values
  - CIPHER_AES128_CBC
```
public static final java.lang.String CIPHER_AES128_CBC
```
    See Also:
    
    Constant Field Values
  - CIPHER_AES192_CBC
```
public static final java.lang.String CIPHER_AES192_CBC
```
    See Also:
    
    Constant Field Values
  - CIPHER_AES256_CBC
```
public static final java.lang.String CIPHER_AES256_CBC
```
    See Also:
    
    Constant Field Values
  - CIPHER_AES128_CTR
```
public static final java.lang.String CIPHER_AES128_CTR
```
    See Also:
    
    Constant Field Values
  - CIPHER_AES192_CTR
```
public static final java.lang.String CIPHER_AES192_CTR
```
    See Also:
    
    Constant Field Values
  - CIPHER_AES256_CTR
```
public static final java.lang.String CIPHER_AES256_CTR
```
    See Also:
    
    Constant Field Values
  - CIPHER_ARCFOUR
```
public static final java.lang.String CIPHER_ARCFOUR
```
    See Also:
    
    Constant Field Values
  - CIPHER_ARCFOUR_128
```
public static final java.lang.String CIPHER_ARCFOUR_128
```
    See Also:
    
    Constant Field Values
  - CIPHER_ARCFOUR_256
```
public static final java.lang.String CIPHER_ARCFOUR_256
```
    See Also:
    
    Constant Field Values
  - CIPHER_AES_GCM_128
```
public static final java.lang.String CIPHER_AES_GCM_128
```
    See Also:
    
    Constant Field Values
  - CIPHER_AES_GCM_256
```
public static final java.lang.String CIPHER_AES_GCM_256
```
    See Also:
    
    Constant Field Values
  - HMAC_SHA1
```
public static final java.lang.String HMAC_SHA1
```
    SHA1 message authentication
    
    See Also:
    
    Constant Field Values
  - HMAC_SHA1_ETM
```
public static final java.lang.String HMAC_SHA1_ETM
```
    See Also:
    
    Constant Field Values
  - HMAC_SHA1_96
```
public static final java.lang.String HMAC_SHA1_96
```
    SHA1 96 bit message authentication
    
    See Also:
    
    Constant Field Values
  - HMAC_MD5
```
public static final java.lang.String HMAC_MD5
```
    MD5 message authentication
    
    See Also:
    
    Constant Field Values
  - HMAC_MD5_ETM
```
public static final java.lang.String HMAC_MD5_ETM
```
    See Also:
    
    Constant Field Values
  - HMAC_MD5_96
```
public static final java.lang.String HMAC_MD5_96
```
    MD5 96 bit message authentication
    
    See Also:
    
    Constant Field Values
  - HMAC_SHA256
```
public static final java.lang.String HMAC_SHA256
```
    See Also:
    
    Constant Field Values
  - HMAC_SHA256_ETM
```
public static final java.lang.String HMAC_SHA256_ETM
```
    See Also:
    
    Constant Field Values
  - HMAC_SHA256_96
```
public static final java.lang.String HMAC_SHA256_96
```
    See Also:
    
    Constant Field Values
  - HMAC_SHA512
```
public static final java.lang.String HMAC_SHA512
```
    See Also:
    
    Constant Field Values
  - HMAC_SHA512_ETM
```
public static final java.lang.String HMAC_SHA512_ETM
```
    See Also:
    
    Constant Field Values
  - HMAC_SHA512_96
```
public static final java.lang.String HMAC_SHA512_96
```
    See Also:
    
    Constant Field Values
  - HMAC_RIPEMD160
```
public static final java.lang.String HMAC_RIPEMD160
```
    See Also:
    
    Constant Field Values
  - HMAC_RIPEMD160_ETM
```
public static final java.lang.String HMAC_RIPEMD160_ETM
```
    See Also:
    
    Constant Field Values
  - COMPRESSION_NONE
```
public static final java.lang.String COMPRESSION_NONE
```
    Compression off
    
    See Also:
    
    Constant Field Values
  - COMPRESSION_ZLIB
```
public static final java.lang.String COMPRESSION_ZLIB
```
    ZLIB compression
    
    See Also:
    
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_GROUP1_SHA1
```
public static final java.lang.String KEX_DIFFIE_HELLMAN_GROUP1_SHA1
```
    Constant for the algorithm name "diffie-hellman-group1-sha1".
    
    See Also:
    
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA1
```
public static final java.lang.String KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA1
```
    Constant for the algorithm name "diffie-hellman-group-exchange-sha1".
    
    See Also:
    
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA256
```
public static final java.lang.String KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA256
```
    See Also:
    
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_GROUP14_SHA1
```
public static final java.lang.String KEX_DIFFIE_HELLMAN_GROUP14_SHA1
```
    Constant for the algorithm name "diffie-hellman-group14-sha1".
    
    See Also:
    
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_GROUP14_SHA256
```
public static final java.lang.String KEX_DIFFIE_HELLMAN_GROUP14_SHA256
```
    Constant for the algorithm name "diffie-hellman-group14-sha256".
    
    See Also:
    
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_GROUP15_SHA512
```
public static final java.lang.String KEX_DIFFIE_HELLMAN_GROUP15_SHA512
```
    Constant for the algorithm name "diffie-hellman-group15-sha512".
    
    See Also:
    
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_GROUP16_SHA512
```
public static final java.lang.String KEX_DIFFIE_HELLMAN_GROUP16_SHA512
```
    Constant for the algorithm name "diffie-hellman-group16-sha512".
    
    See Also:
    
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_GROUP17_SHA512
```
public static final java.lang.String KEX_DIFFIE_HELLMAN_GROUP17_SHA512
```
    Constant for the algorithm name "diffie-hellman-group17-sha512".
    
    See Also:
    
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_GROUP18_SHA512
```
public static final java.lang.String KEX_DIFFIE_HELLMAN_GROUP18_SHA512
```
    Constant for the algorithm name "diffie-hellman-group18-sha512".
    
    See Also:
    
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_ECDH_NISTP_256
```
public static final java.lang.String KEX_DIFFIE_HELLMAN_ECDH_NISTP_256
```
    See Also:
    
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_ECDH_NISTP_384
```
public static final java.lang.String KEX_DIFFIE_HELLMAN_ECDH_NISTP_384
```
    See Also:
    
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_ECDH_NISTP_521
```
public static final java.lang.String KEX_DIFFIE_HELLMAN_ECDH_NISTP_521
```
    See Also:
    
    Constant Field Values
  - PUBLIC_KEY_SSHDSS
```
public static final java.lang.String PUBLIC_KEY_SSHDSS
```
    SSH2 DSA Public Key
    
    See Also:
    
    Constant Field Values
  - PUBLIC_KEY_ED25519
```
public static final java.lang.String PUBLIC_KEY_ED25519
```
    ED25519 Public key
    
    See Also:
    
    Constant Field Values
  - PUBLIC_KEY_SSHRSA
```
public static final java.lang.String PUBLIC_KEY_SSHRSA
```
    SSH2 RSA Public Key
    
    See Also:
    
    Constant Field Values
  - PUBLIC_KEY_ECDSA_SHA2_NISPTP_256
```
public static final java.lang.String PUBLIC_KEY_ECDSA_SHA2_NISPTP_256
```
    ECDSA 256 bit Public Key
    
    See Also:
    
    Constant Field Values
  - PUBLIC_KEY_ECDSA_SHA2_NISPTP_384
```
public static final java.lang.String PUBLIC_KEY_ECDSA_SHA2_NISPTP_384
```
    ECDSA 384 bit Public Key
    
    See Also:
    
    Constant Field Values
  - PUBLIC_KEY_ECDSA_SHA2_NISPTP_521
```
public static final java.lang.String PUBLIC_KEY_ECDSA_SHA2_NISPTP_521
```
    ECDSA 521 bit Public Key
    
    See Also:
    
    Constant Field Values
  - PUBLIC_KEY_RSA_SHA256
```
public static final java.lang.String PUBLIC_KEY_RSA_SHA256
```
    RSA key with SHA256 signature
    
    See Also:
    
    Constant Field Values
  - PUBLIC_KEY_RSA_SHA512
```
public static final java.lang.String PUBLIC_KEY_RSA_SHA512
```
    RSA key with SHA512 signature
    
    See Also:
    
    Constant Field Values
  - PASSWORD_AUTHENTICATION
```
public static final java.lang.String PASSWORD_AUTHENTICATION
```
    Identifier for password authentication
    
    See Also:
    
    Constant Field Values
  - PUBLICKEY_AUTHENTICATION
```
public static final java.lang.String PUBLICKEY_AUTHENTICATION
```
    Identifier for public key authentication
    
    See Also:
    
    Constant Field Values
  - KEYBOARD_INTERACTIVE_AUTHENTICATION
```
public static final java.lang.String KEYBOARD_INTERACTIVE_AUTHENTICATION
```
    See Also:
    
    Constant Field Values
  - maximumSocketsBacklogPerRemotelyForwardedConnection
```
protected int maximumSocketsBacklogPerRemotelyForwardedConnection
```
  - socketConnectionFactory
```
protected SocketConnectionFactory socketConnectionFactory
```
  - compressionsCS
```
protected ComponentFactory<SshCompression> compressionsCS
```
  - compressionsSC
```
protected ComponentFactory<SshCompression> compressionsSC
```
  - ciphersCS
```
protected ComponentFactory<SshCipher> ciphersCS
```
  - ciphersSC
```
protected ComponentFactory<SshCipher> ciphersSC
```
  - keyExchanges
```
protected ComponentFactory<SshKeyExchange<? extends SshContext>> keyExchanges
```
  - macCS
```
protected ComponentFactory<SshHmac> macCS
```
  - macSC
```
protected ComponentFactory<SshHmac> macSC
```
  - publicKeys
```
protected ComponentFactory<SshPublicKey> publicKeys
```
  - prefCipherCS
```
protected java.lang.String prefCipherCS
```
  - prefCipherSC
```
protected java.lang.String prefCipherSC
```
  - prefMacCS
```
protected java.lang.String prefMacCS
```
  - prefMacSC
```
protected java.lang.String prefMacSC
```
  - prefCompressionCS
```
protected java.lang.String prefCompressionCS
```
  - prefCompressionSC
```
protected java.lang.String prefCompressionSC
```
  - prefKeyExchange
```
protected java.lang.String prefKeyExchange
```
  - prefPublicKey
```
protected java.lang.String prefPublicKey
```
  - maxChannels
```
protected int maxChannels
```
  - compressionLevel
```
protected int compressionLevel
```
  - maximumPacketLength
```
protected int maximumPacketLength
```
  - MAX_NUM_PACKETS_BEFORE_REKEY
```
protected long MAX_NUM_PACKETS_BEFORE_REKEY
```
  - MAX_NUM_BYTES_BEFORE_REKEY
```
protected long MAX_NUM_BYTES_BEFORE_REKEY
```
  - daemon
```
protected SshEngine daemon
```
  - softwareVersionComments
```
protected java.lang.String softwareVersionComments
```
  - killTunnelsOnRemoteForwardingCancel
```
protected boolean killTunnelsOnRemoteForwardingCancel
```
  - sendIgnorePacketOnIdle
```
protected boolean sendIgnorePacketOnIdle
```
  - idleConnectionTimeout
```
protected int idleConnectionTimeout
```
  - idleAuthenticationTimeoutSeconds
```
protected int idleAuthenticationTimeoutSeconds
```
  - keepAliveInterval
```
protected int keepAliveInterval
```
  - keepAliveDataMaxLength
```
protected int keepAliveDataMaxLength
```
  - executor
```
protected static java.util.concurrent.ExecutorService executor
```
  - locale
```
protected java.util.Locale locale
```
  - byteBufferPool
```
protected com.sshtools.common.util.ByteBufferPool byteBufferPool
```
  - minDHGroupExchangeKeySize
```
protected int minDHGroupExchangeKeySize
```
  - preferredDHGroupExchangeKeySize
```
protected int preferredDHGroupExchangeKeySize
```
  - maxDHGroupExchangeKeySize
```
protected int maxDHGroupExchangeKeySize
```
  - componentManager
```
protected ComponentManager componentManager
```
- Constructor Detail
  - SshContext
```
public SshContext(ComponentManager componentManager,
                  SecurityLevel securityLevel)
           throws java.io.IOException,
                  SshException
```
    Constructs a default context but does not set the daemon
    
    Parameters:
    
    componentManager -
    
    Throws:
    
    SshException
    
    java.io.IOException
  - SshContext
```
public SshContext(SshEngine daemon,
                  ComponentManager componentManager,
                  SecurityLevel securityLevel)
           throws java.io.IOException,
                  SshException
```
    Constructs a default context
    
    Parameters:
    
    componentManager -
    
    Throws:
    
    java.io.IOException
    
    SshException
- Method Detail
  - init
```
public void init(SshEngine daemon)
```
    Initialise the SshContext by setting the daemon
  - getConnectionManager
```
public abstract ConnectionManager<? extends SshContext> getConnectionManager()
```
  - createEngine
```
public abstract ProtocolEngine createEngine(ConnectRequestFuture connectFuture)
                                     throws java.io.IOException
```
    Description copied from class: ProtocolContext
    
    Create a protocol engine.
    
    Specified by:
    
    createEngine in class ProtocolContext
    
    Returns:
    
    ProtocolEngine
    
    Throws:
    
    java.io.IOException
  - getSupportedPublicKeys
```
public abstract java.lang.String getSupportedPublicKeys()
```
  - configureKeyExchanges
```
protected abstract void configureKeyExchanges()
```
  - getPreferredPublicKey
```
public abstract java.lang.String getPreferredPublicKey()
```
  - getChannelFactory
```
public abstract ChannelFactory<? extends SshContext> getChannelFactory()
```
  - getPolicy
```
public <P> P getPolicy(java.lang.Class<P> clz)
```
    Specified by:
    
    getPolicy in interface Context
  - getPolicy
```
public <P> P getPolicy(java.lang.Class<P> clz,
                       P defaultValue)
```
  - setPolicy
```
public void setPolicy(java.lang.Class<?> clz,
                      java.lang.Object policy)
```
    Specified by:
    
    setPolicy in interface Context
  - hasPolicy
```
public boolean hasPolicy(java.lang.Class<?> clz)
```
    Specified by:
    
    hasPolicy in interface Context
  - getComponentManager
```
public ComponentManager getComponentManager()
```
    Specified by:
    
    getComponentManager in interface Context
  - addOperationListener
```
public void addOperationListener(ExecutorOperationListener listener)
```
  - removeOperationListener
```
public void removeOperationListener(ExecutorOperationListener listener)
```
  - getExecutorListeners
```
public java.util.List<ExecutorOperationListener> getExecutorListeners()
```
    Specified by:
    
    getExecutorListeners in interface ExecutorServiceProvider
  - setSocketConnectionFactory
```
public void setSocketConnectionFactory(SocketConnectionFactory socketConnectionFactory)
```
    Overrides:
    
    setSocketConnectionFactory in class ProtocolContext
  - getSocketConnectionFactory
```
public SocketConnectionFactory getSocketConnectionFactory()
```
    Overrides:
    
    getSocketConnectionFactory in class ProtocolContext
  - getGlobalRequestHandler
```
public abstract GlobalRequestHandler<? extends SshContext> getGlobalRequestHandler(java.lang.String requestname)
```
  - getEngine
```
public SshEngine getEngine()
```
    Get the instance of the SSHD for this context.
    
    Returns:
    
    Daemon
  - setChannelLimit
```
public void setChannelLimit(int maxChannels)
```
    Set the maximum number of open channels allowed by each client (defaults to 100).
    
    Parameters:
    
    maxChannels -
  - getChannelLimit
```
public int getChannelLimit()
```
    Get the maximum number of open channels allowed by each client.
    
    Returns:
    
    int
  - supportedCiphersCS
```
public ComponentFactory<SshCipher> supportedCiphersCS()
```
    Returns a factory implementation that enables configuration of the available ciphers.
    
    The standard default ciphers installed are 3DES and Blowfish, however the J2SSH Maverick API on which this server is based also supports a number of optional ciphers AES, CAST and Twofish. These can be installed by adding the sshtools-cipher.jar to your class path and using the following code within your SSHD SshDaemon#configure(ConfigurationContext) method.
    // import the cipher package import com.sshtools.cipher.*; // Add AES context.supportedCiphers().add(AES128Cbc.AES128_CBC, AES128Cbc.class); context.supportedCiphers().add(AES192Cbc.AES192_CBC, AES192Cbc.class); context.supportedCiphers().add(AES256Cbc.AES256_CBC, AES256Cbc.class); // Add Twofish - note the 256 bit cipher has two different entries to maintain backwards compatibility context.supportedCiphers().add(Twofish128Cbc.TWOFISH128_CBC, Twofish128Cbc.class); context.supportedCiphers().add(Twofish192Cbc.TWOFISH192_CBC, Twofish192Cbc.class); context.supportedCiphers().add(Twofish256Cbc.TWOFISH256_CBC, Twofish256Cbc.class); context.supportedCiphers().add(Twofish256Cbc.TWOFISH_CBC, Twofish256Cbc.class); // Add CAST context.supportedCiphers().add(CAST128Cbc.CAST128_CBC, CAST128Cbc.class);
    Returns:
    
    the component factory
  - supportedCiphersSC
```
public ComponentFactory<SshCipher> supportedCiphersSC()
```
  - getPreferredCipherCS
```
public java.lang.String getPreferredCipherCS()
```
    Get the currently preferred cipher for the Client->Server stream.
    
    Returns:
    
    the preferred Client-Server cipher
  - setPreferredCipherCS
```
public void setPreferredCipherCS(java.lang.String name)
                          throws java.io.IOException,
                                 SshException
```
    Set the preferred cipher for the Client->Server stream.
    
    Use the static fields available within this class (or the com.sshtools.cipher classes) to identify the correct cipher.
    context.setPreferredCipherCS(ConfigurationContext.CIPHER_BLOWFISH_CBC);
    
    The default cipher is 3DES
    
    Parameters:
    
    name -
    
    Throws:
    
    java.io.IOException - if the cipher is not supported
    
    SshException
  - getPreferredCipherSC
```
public java.lang.String getPreferredCipherSC()
```
    Get the currently preferred cipher for the Server->Client stream.
    
    Returns:
    
    the preferred Server-Client cipher
  - getSoftwareVersionComments
```
public java.lang.String getSoftwareVersionComments()
```
    Get the software/version/comments field that is to be used in the SSH protocols negotiation procedure.
    
    Returns:
    
    String
  - setSoftwareVersionComments
```
public void setSoftwareVersionComments(java.lang.String softwareVersionComments)
```
    Set the current implementations software/version/comments field that is used during the SSH protocols negotiation procedure. This value MUST consist of printable US-ASCII characters with the exception of whitespace and the minus sign (-) and be no longer than 200 characters.
    
    Parameters:
    
    softwareVersionComments -
  - setPreferredCipherSC
```
public void setPreferredCipherSC(java.lang.String name)
                          throws java.io.IOException,
                                 SshException
```
    Set the preferred cipher for the Server->Client stream.
    
    Use the static fields available within this class (or the com.sshtools.cipher classes) to identify the correct cipher.
    context.setPreferredCipherSC(ConfigurationContext.CIPHER_BLOWFISH_CBC);
    
    The default cipher is 3DES
    
    Parameters:
    
    name -
    
    Throws:
    
    java.io.IOException
    
    SshException
  - supportedMacsCS
```
public ComponentFactory<SshHmac> supportedMacsCS()
```
    Get the supported message authentication algorithms.
    
    There are no optional MAC algorithms currently available and this method is supplied in preperation for future enhancements.
    
    Returns:
    
    the component factory
  - supportedMacsSC
```
public ComponentFactory<SshHmac> supportedMacsSC()
```
  - getPreferredMacCS
```
public java.lang.String getPreferredMacCS()
```
    Get the currently preferred mac for the Client->Server stream.
    
    Returns:
    
    the preferred Client-Server mac
  - setPreferredMacCS
```
public void setPreferredMacCS(java.lang.String name)
                       throws java.io.IOException,
                              SshException
```
    Set the preferred MAC for the Client->Server stream.
    
    Use the static fields available within this class to identify the correct MAC.
    context.setPreferredMacCS(ConfigurationContext.HMAC_MD5);
    
    The default MAC is HMAC_SHA1
    
    Parameters:
    
    name -
    
    Throws:
    
    java.io.IOException
    
    SshException
  - getPreferredMacSC
```
public java.lang.String getPreferredMacSC()
```
    Get the currently supported mac for the Server-Client stream.
    
    Returns:
    
    the preferred Server-Client mac
  - setRemoteForwardingCancelKillsTunnels
```
public void setRemoteForwardingCancelKillsTunnels(boolean killTunnelsOnRemoteForwardingCancel)
```
    When the user cancels a remote forwarding should active tunnels be dropped?
    
    Parameters:
    
    killTunnelsOnRemoteForwardingCancel - boolean
  - getRemoteForwardingCancelKillsTunnels
```
public boolean getRemoteForwardingCancelKillsTunnels()
```
    Determines whether the cancellation of a remote forwarding drops currently active tunnels
    
    Returns:
    
    boolean
  - setPreferredMacSC
```
public void setPreferredMacSC(java.lang.String name)
                       throws java.io.IOException,
                              SshException
```
    Set the preferred mac for the Server->Client stream.
    
    Use the static fields available within this class to identify the correct MAC.
    context.setPreferredMacCS(ConfigurationContext.HMAC_MD5);
    
    The default MAC is HMAC_SHA1
    
    Parameters:
    
    name -
    
    Throws:
    
    java.io.IOException
    
    SshException
  - supportedCompressionsCS
```
public ComponentFactory<SshCompression> supportedCompressionsCS()
```
    Get the supported compression algorithms.
    
    There are no optional compression algorithms currently available and this method is supplied in preperation for future enhancements.
    
    Returns:
    
    the component factory
  - supportedCompressionsSC
```
public ComponentFactory<SshCompression> supportedCompressionsSC()
```
  - getPreferredCompressionCS
```
public java.lang.String getPreferredCompressionCS()
```
    Get the currently preferred compression for the Client->Server stream.
    
    Returns:
    
    the preferred Client-Server compression
  - setPreferredCompressionCS
```
public void setPreferredCompressionCS(java.lang.String name)
                               throws java.io.IOException
```
    Set the preferred compression for the Client->Server stream.
    
    It is recommended that you do not set the preferred compression so that the client has control over the compression selection.
    
    Parameters:
    
    name -
    
    Throws:
    
    java.io.IOException
  - getPreferredCompressionSC
```
public java.lang.String getPreferredCompressionSC()
```
    Get the currently preferred compression for the Server->Client stream.
    
    Returns:
    
    the preferred Server->Client compression
  - setPreferredCompressionSC
```
public void setPreferredCompressionSC(java.lang.String name)
                               throws java.io.IOException
```
    Set the preferred compression for the Server->Client stream.
    
    It is recommended that you do not set the preferred compression so that the client has control over the compression selection.
    
    Parameters:
    
    name -
    
    Throws:
    
    java.io.IOException
  - supportedKeyExchanges
```
public ComponentFactory<SshKeyExchange<? extends SshContext>> supportedKeyExchanges()
```
    Get the supported key exchange methods.
    
    There are no optional key exchange algorithms currently available and this method is supplied in preperation for future enhancements.
    
    Returns:
    
    the component factory
  - getPreferredKeyExchange
```
public java.lang.String getPreferredKeyExchange()
```
    Get the currently preferred key exchange method.
    
    Returns:
    
    the preferred key exhcange
  - setPreferredKeyExchange
```
public void setPreferredKeyExchange(java.lang.String name)
                             throws java.io.IOException,
                                    SshException
```
    Set the preferred key exchange method.
    
    There is only one supported key exchange algorithm and as such this method is supplied in preperation for future enhancements.
    
    Parameters:
    
    name -
    
    Throws:
    
    java.io.IOException
    
    SshException
  - setCompressionLevel
```
public void setCompressionLevel(int compressionLevel)
```
    Set the compression level to use if compression is enabled
    
    Parameters:
    
    compressionLevel - int
  - getCompressionLevel
```
public int getCompressionLevel()
```
    Get the current compression level
    
    Returns:
    
    int
  - getMaximumSocketsBacklogPerRemotelyForwardedConnection
```
public int getMaximumSocketsBacklogPerRemotelyForwardedConnection()
```
  - setMaximumSocketsBacklogPerRemotelyForwardedConnection
```
public void setMaximumSocketsBacklogPerRemotelyForwardedConnection(int maximumSocketsBacklogPerRemotelyForwardedConnection)
```
  - getCiphersSC
```
public java.lang.String getCiphersSC()
```
    Get the ciphers for the Server->Client stream.
    
    Returns:
    
    the Server-Client ciphers in order of preference
  - getCiphersCS
```
public java.lang.String getCiphersCS()
```
  - getMacsCS
```
public java.lang.String getMacsCS()
```
    Get the ciphers for the Client->Server stream.
    
    Returns:
    
    the Client-Server ciphers in order of preference
  - getMacsSC
```
public java.lang.String getMacsSC()
```
    Get the ciphers for the Server->Client stream.
    
    Returns:
    
    the Server-Client ciphers in order of preference
  - getPublicKeys
```
public java.lang.String getPublicKeys()
```
    Get the ciphers for the Server->Client stream.
    
    Returns:
    
    the Server-Client ciphers in order of preference
  - getKeyExchanges
```
public java.lang.String getKeyExchanges()
```
    Get the ciphers for the Server->Client stream.
    
    Returns:
    
    the Server-Client ciphers in order of preference
  - setPreferredCipherSC
```
public void setPreferredCipherSC(int[] order)
                          throws SshException
```
    Set the preferred SC cipher order
    
    Parameters:
    
    order - , list of indices to be moved to the top.
    
    Throws:
    
    SshException
  - setPreferredCipherSC
```
public void setPreferredCipherSC(java.lang.String[] order)
                          throws SshException
```
    Set the preferred SC cipher order
    
    Parameters:
    
    order -
    
    Throws:
    
    SshException
  - setPreferredCipherCS
```
public void setPreferredCipherCS(int[] order)
                          throws SshException
```
    Set the preferred SC cipher order
    
    Parameters:
    
    order - , list of indices to be moved to the top.
    
    Throws:
    
    SshException
  - setPreferredCipherCS
```
public void setPreferredCipherCS(java.lang.String[] order)
                          throws SshException
```
    Set the preferred CS cipher order
    
    Parameters:
    
    order -
    
    Throws:
    
    SshException
  - setPreferredMacSC
```
public void setPreferredMacSC(int[] order)
                       throws SshException
```
    Set the preferred SC Mac order
    
    Parameters:
    
    order - , list of indices to be moved to the top.
    
    Throws:
    
    SshException
  - setPreferredMacSC
```
public void setPreferredMacSC(java.lang.String[] order)
                       throws SshException
```
    Parameters:
    
    order -
    
    Throws:
    
    SshException
  - setPreferredKeyExchange
```
public void setPreferredKeyExchange(java.lang.String[] order)
                             throws SshException
```
    Parameters:
    
    order -
    
    Throws:
    
    SshException
  - setPreferredMacCS
```
public void setPreferredMacCS(int[] order)
                       throws SshException
```
    Set the preferred CS Mac order
    
    Parameters:
    
    order - , list of indices to be moved to the top.
    
    Throws:
    
    SshException
  - setPreferredMacCS
```
public void setPreferredMacCS(java.lang.String[] order)
                       throws SshException
```
    Throws:
    
    SshException
  - setCipherPreferredPositionCS
```
public void setCipherPreferredPositionCS(java.lang.String name,
                                         int position)
                                  throws SshException
```
    Throws:
    
    SshException
  - setCipherPreferredPositionSC
```
public void setCipherPreferredPositionSC(java.lang.String name,
                                         int position)
                                  throws SshException
```
    Throws:
    
    SshException
  - setMacPreferredPositionSC
```
public void setMacPreferredPositionSC(java.lang.String name,
                                      int position)
                               throws SshException
```
    Throws:
    
    SshException
  - setMacPreferredPositionCS
```
public void setMacPreferredPositionCS(java.lang.String name,
                                      int position)
                               throws SshException
```
    Throws:
    
    SshException
  - setPublicKeyPreferredPosition
```
public void setPublicKeyPreferredPosition(java.lang.String name,
                                          int position)
                                   throws SshException
```
    Throws:
    
    SshException
  - setKeyExchangePreferredPosition
```
public void setKeyExchangePreferredPosition(java.lang.String name,
                                            int position)
                                     throws SshException
```
    Throws:
    
    SshException
  - setMaximumPacketLength
```
public void setMaximumPacketLength(int maximumPacketLength)
```
    Set the maximum supported length of an SSH packet.
    
    Parameters:
    
    maximumPacketLength - int
  - getMaximumPacketLength
```
public int getMaximumPacketLength()
```
    Get the maximum supported length of an SSH packet.
    
    Specified by:
    
    getMaximumPacketLength in interface Context
    
    Returns:
    
    int
  - setKeyExchangeTransferLimit
```
public void setKeyExchangeTransferLimit(long MAX_NUM_BYTES_BEFORE_REKEY)
```
    This limit tells the server when to force a key exchange.
    
    Parameters:
    
    MAX_NUM_BYTES_BEFORE_REKEY - int
  - setKeyExchangePacketLimit
```
public void setKeyExchangePacketLimit(int MAX_NUM_PACKETS_BEFORE_REKEY)
```
    This tells the server how many packets to use before a key exchange.
    
    Parameters:
    
    MAX_NUM_PACKETS_BEFORE_REKEY - int
  - getKeyExchangeTransferLimit
```
public long getKeyExchangeTransferLimit()
```
    Get the number of bytes to transfer before a key exchange is forced.
    
    Returns:
    
    int
  - getKeyExchangePacketLimit
```
public long getKeyExchangePacketLimit()
```
    Get the number of packets to send before a key exchange is forced
    
    Returns:
    
    int
  - getIdleConnectionTimeoutSeconds
```
public int getIdleConnectionTimeoutSeconds()
```
    Should the connection be disconnected on session timeout?
    
    Returns:
  - setIdleConnectionTimeoutSeconds
```
public void setIdleConnectionTimeoutSeconds(int idleConnectionTimeout)
```
    Inform the context that the connection should be disconnected on session timeout
    
    Parameters:
    
    idleConnectionTimeout -
  - supportedPublicKeys
```
public ComponentFactory<SshPublicKey> supportedPublicKeys()
```
  - getKeepAliveInterval
```
public int getKeepAliveInterval()
```
    Get the current keep-alive interval (in seconds). The server sends an SSH_MSG_IGNORE every n seconds after no activity on a connection.
    
    Returns:
  - setKeepAliveInterval
```
public void setKeepAliveInterval(int keepAliveInterval)
```
    Set the keep-alive interval (in seconds). The server sends an SSH_MSG_IGNORE message every n seconds after no activity on a connection.
    
    Parameters:
    
    keepAliveInterval -
  - getKeepAliveDataMaxLength
```
public int getKeepAliveDataMaxLength()
```
    Get the maximum data length for the keep-alive packet.
    
    Returns:
  - setKeepAliveDataMaxLength
```
public void setKeepAliveDataMaxLength(int keepAliveDataMaxLength)
```
    Set the maximum data length for the keep-alive packet. Default is 128, the actual number of bytes is random up to this maximum.
    
    Parameters:
    
    keepAliveDataMaxLength -
  - setLocale
```
public void setLocale(java.util.Locale locale)
```
  - getLocale
```
public java.util.Locale getLocale()
```
  - enableFIPSMode
```
public void enableFIPSMode()
                    throws SshException
```
    Throws:
    
    SshException
  - getExecutorService
```
public java.util.concurrent.ExecutorService getExecutorService()
```
    Specified by:
    
    getExecutorService in interface Context
    
    Specified by:
    
    getExecutorService in interface ExecutorServiceProvider
  - shutdown
```
public void shutdown()
```
    Specified by:
    
    shutdown in class ProtocolContext
  - getByteBufferPool
```
public com.sshtools.common.util.ByteBufferPool getByteBufferPool()
```
    Specified by:
    
    getByteBufferPool in interface Context
  - getDaemonContext
```
public SshEngineContext getDaemonContext()
```
  - getIdleAuthenticationTimeoutSeconds
```
public int getIdleAuthenticationTimeoutSeconds()
```
  - setIdleAuthenticationTimeoutSeconds
```
public void setIdleAuthenticationTimeoutSeconds(int idleAuthenticationTimeoutSeconds)
```
  - getMinDHGroupExchangeKeySize
```
public int getMinDHGroupExchangeKeySize()
```
  - setMinDHGroupExchangeKeySize
```
public void setMinDHGroupExchangeKeySize(int minDHGroupExchangeKeySize)
```
  - getForwardingManager
```
public abstract ForwardingManager<? extends SshContext> getForwardingManager()
```
  - listPublicKeys
```
protected java.lang.String listPublicKeys(java.lang.String... keys)
```
  - isSendIgnorePacketOnIdle
```
public boolean isSendIgnorePacketOnIdle()
```
  - setSendIgnorePacketOnIdle
```
public void setSendIgnorePacketOnIdle(boolean sendIgnorePacketOnIdle)
```
  - isHttpRedirect
```
public boolean isHttpRedirect()
```
  - setHttpRedirect
```
public void setHttpRedirect(boolean httpRedirect)
```
  - getHttpRedirectUrl
```
public java.lang.String getHttpRedirectUrl()
```
  - setHttpRedirectUrl
```
public void setHttpRedirectUrl(java.lang.String httpRedirectUrl)
```
  - getPreferredDHGroupExchangeKeySize
```
public int getPreferredDHGroupExchangeKeySize()
```
  - setPreferredDHGroupExchangeKeySize
```
public void setPreferredDHGroupExchangeKeySize(int preferredDHGroupExchangeKeySize)
```
  - getMaxDHGroupExchangeKeySize
```
public int getMaxDHGroupExchangeKeySize()
```
  - setMaxDHGroupExchangeKeySize
```
public void setMaxDHGroupExchangeKeySize(int maxDHGroupExchangeKeySize)
```
  - getForwardingPolicy
```
public ForwardingPolicy getForwardingPolicy()
```
  - getAuthenticatedFuture
```
protected AuthenticatedFuture getAuthenticatedFuture()
```

Class SshContext

Field Summary

Fields inherited from class com.sshtools.synergy.nio.ProtocolContext

Constructor Summary

Method Summary

Methods inherited from class com.sshtools.synergy.nio.ProtocolContext

Methods inherited from class java.lang.Object

Field Detail

CIPHER_TRIPLEDES_CBC

CIPHER_TRIPLEDES_CTR

CIPHER_BLOWFISH_CBC

CIPHER_AES128_CBC

CIPHER_AES192_CBC

CIPHER_AES256_CBC

CIPHER_AES128_CTR

CIPHER_AES192_CTR

CIPHER_AES256_CTR

CIPHER_ARCFOUR

CIPHER_ARCFOUR_128

CIPHER_ARCFOUR_256

CIPHER_AES_GCM_128

CIPHER_AES_GCM_256

HMAC_SHA1

HMAC_SHA1_ETM

HMAC_SHA1_96

HMAC_MD5

HMAC_MD5_ETM

HMAC_MD5_96

HMAC_SHA256

HMAC_SHA256_ETM

HMAC_SHA256_96

HMAC_SHA512

HMAC_SHA512_ETM

HMAC_SHA512_96

HMAC_RIPEMD160

HMAC_RIPEMD160_ETM

COMPRESSION_NONE

COMPRESSION_ZLIB

KEX_DIFFIE_HELLMAN_GROUP1_SHA1

KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA1

KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA256

KEX_DIFFIE_HELLMAN_GROUP14_SHA1

KEX_DIFFIE_HELLMAN_GROUP14_SHA256

KEX_DIFFIE_HELLMAN_GROUP15_SHA512

KEX_DIFFIE_HELLMAN_GROUP16_SHA512

KEX_DIFFIE_HELLMAN_GROUP17_SHA512

KEX_DIFFIE_HELLMAN_GROUP18_SHA512

KEX_DIFFIE_HELLMAN_ECDH_NISTP_256

KEX_DIFFIE_HELLMAN_ECDH_NISTP_384

KEX_DIFFIE_HELLMAN_ECDH_NISTP_521

PUBLIC_KEY_SSHDSS

PUBLIC_KEY_ED25519

PUBLIC_KEY_SSHRSA

PUBLIC_KEY_ECDSA_SHA2_NISPTP_256

PUBLIC_KEY_ECDSA_SHA2_NISPTP_384

PUBLIC_KEY_ECDSA_SHA2_NISPTP_521

PUBLIC_KEY_RSA_SHA256

PUBLIC_KEY_RSA_SHA512

PASSWORD_AUTHENTICATION

PUBLICKEY_AUTHENTICATION

KEYBOARD_INTERACTIVE_AUTHENTICATION

maximumSocketsBacklogPerRemotelyForwardedConnection

socketConnectionFactory

compressionsCS

compressionsSC

ciphersCS

ciphersSC

keyExchanges

macCS

macSC

publicKeys

prefCipherCS

prefCipherSC

prefMacCS

prefMacSC

prefCompressionCS

prefCompressionSC

prefKeyExchange

prefPublicKey

maxChannels