Ssh2Context (J2SSH Maverick 1.5.0 API)

java.lang.Object
- com.sshtools.ssh2.Ssh2Context

All Implemented Interfaces:

SshContext
```
public final class Ssh2Context
extends Object
implements SshContext
```
This class implements SshContextto provide SSH2 connection configuration through the SshConnector class.

To configure an authentication banner for SSH2 connections see BannerDisplay.

The preferred message authentication algorithm for each data stream can be set using:
```
 SshConnector con = SshConnector.getInstance();
 Ssh2Context context = (Ssh2Context) con.getContext(SshConnector.SSH2);
 
 context.setPreferredMacCS(Ssh2Context.HMAC_MD5); // Client->Server data stream
 context.setPreferredMacSC(Ssh2Context.HMAC_MD5); // Server->Client data stream
 
```
Once further cipher, public key and compression algorithms have been implemented the same process will apply.
Author:

Lee David Painter

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`CIPHER_AES128_CBC`
`static String`	`CIPHER_AES128_CTR`
`static String`	`CIPHER_AES192_CBC`
`static String`	`CIPHER_AES192_CTR`
`static String`	`CIPHER_AES256_CBC`
`static String`	`CIPHER_AES256_CTR`
`static String`	`CIPHER_ARCFOUR`
`static String`	`CIPHER_ARCFOUR_128`
`static String`	`CIPHER_ARCFOUR_256`
`static String`	`CIPHER_BLOWFISH_CBC`
`static String`	`CIPHER_TRIPLEDES_CBC`
`static String`	`CIPHER_TRIPLEDES_CTR`
`static String`	`COMPRESSION_NONE` Compression off
`static String`	`COMPRESSION_ZLIB` Optional zlib compression (requires sshtools-zlib.jar in classpath)
`static String`	`HMAC_MD5` MD5 message authentication
`static String`	`HMAC_MD5_96` MD5 96 bit message authentication
`static String`	`HMAC_SHA1` SHA1 message authentication
`static String`	`HMAC_SHA1_96` SHA1 96 bit message authentication
`static String`	`HMAC_SHA256`
`static String`	`KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA1` Optional key exchange mechanism in which the server maintains a list of acceptable generators and primes
`static String`	`KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA256`
`static String`	`KEX_DIFFIE_HELLMAN_GROUP1_SHA1` The required key exchange method
`static String`	`KEX_DIFFIE_HELLMAN_GROUP14_SHA1`
`static String`	`PUBLIC_KEY_SSHDSS` SSH2 DSA Public Key
`static String`	`PUBLIC_KEY_SSHRSA` SSH2 RSA Public Key

Constructor Summary

Constructors
Constructor and Description

Ssh2Context()
Contructs a default context

Constructors
Constructor and Description
`Ssh2Context()` Contructs a default context

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`disableCompression()`
`void`	`enableCompression()`
`void`	`enableFIPSMode()` Enables FIPS compatible algorithms and disables any other non-compatible algorithms.
`BannerDisplay`	`getBannerDisplay()` Get the contexts banner display
`int`	`getChannelLimit()` Get the maximum number of channels that are allowed open at any one time.
`String`	`getCiphersCS()` Get the ciphers for the Client->Server stream.
`String`	`getCiphersSC()` Get the ciphers for the Server->Client stream.
`int`	`getDHGroupExchangeKeySize()`
`MaverickCallbackHandler`	`getGssCallback()`
`HostKeyVerification`	`getHostKeyVerification()` Get the host key verification implementation
`int`	`getIdleConnectionTimeoutSeconds()`
`int`	`getKeepAliveMaxDataLength()`
`String`	`getKeyExchanges()` Get the ciphers for the Server->Client stream.
`String`	`getMacsCS()` Get the ciphers for the Client->Server stream.
`String`	`getMacsSC()` Get the ciphers for the Server->Client stream.
`int`	`getMaximumPacketLength()` Get the maximim packet size supported by the transport layer.
`int`	`getPartialMessageTimeout()`
`String`	`getPreferredCipherCS()` Get the currently preferred cipher for the Client->Server stream.
`String`	`getPreferredCipherSC()` Get the currently preferred cipher for the Server->Client stream.
`String`	`getPreferredCompressionCS()` Get the currently preferred compression for the Client->Server stream.
`String`	`getPreferredCompressionSC()` Get the currently preferred compression for the Server->Client stream.
`String`	`getPreferredKeyExchange()` Get the currently preferred key exchange method.
`String`	`getPreferredMacCS()` Get the currently preferred mac for the Client->Server stream.
`String`	`getPreferredMacSC()` Get the currently supported mac for the Server-Client stream.
`String`	`getPreferredPublicKey()` Get the currently preferred public key algorithm.
`String`	`getPublicKeys()` Get the ciphers for the Server->Client stream.
`String`	`getSFTPProvider()` Get the path to the SFTP provider.
`int`	`getSocketTimeout()`
`byte[]`	`getX11AuthenticationCookie()` Get a fake random cookie for X11 authentication
`String`	`getX11Display()` Get the currently configured XDisplay setting which will be null if no display is currently set.
`byte[]`	`getX11RealCookie()` Get the real X11 authentication cookie, if not cookie has been set the fake cookie will be returned.
`ForwardingRequestListener`	`getX11RequestListener()` Get the X11 forwarding request listener.
`boolean`	`isDHGroupExchangeBackwardsCompatible()`
`boolean`	`isKeyReExchangeDisabled()`
`boolean`	`isSendIgnorePacketOnIdle()`
`void`	`setBannerDisplay(BannerDisplay bannerdisplay)` Set a banner display for callback of authentication banners
`void`	`setChannelLimit(int maxChannels)` Set the maximum number of channels that are allowed open at any one time.
`void`	`setCipherPreferredPositionCS(String name, int position)`
`void`	`setCipherPreferredPositionSC(String name, int position)`
`void`	`setDHGroupExchangeBackwardsCompatible(boolean dhGroupExchangeBackwardCompatible)`
`void`	`setDHGroupExchangeKeySize(int dhGroupExchangeKeySize)`
`void`	`setGssCallback(MaverickCallbackHandler gsscall)`
`void`	`setHostKeyVerification(HostKeyVerification verify)` Set the host key verification implementation
`void`	`setIdleConnectionTimeoutSeconds(int idleConnectionTimeoutSeconds)`
`void`	`setKeepAliveMaxDataLength(int keepAliveMaxDataLength)`
`void`	`setKeyExchangePreferredPosition(String name, int position)`
`void`	`setKeyReExchangeDisabled(boolean keyReExchangeDisabled)`
`void`	`setMacPreferredPositionCS(String name, int position)`
`void`	`setMacPreferredPositionSC(String name, int position)`
`void`	`setMaximumPacketLength(int maxPacketLength)` Set the maximum packet size supported by the transport layer.
`void`	`setPartialMessageTimeout(int partialMessageTimeout)`
`void`	`setPreferredCipherCS(int[] order)` Set the preferred SC cipher order
`void`	`setPreferredCipherCS(String name)` Set the preferred cipher for the Client->Server stream.
`void`	`setPreferredCipherSC(int[] order)` Set the preferred SC cipher order
`void`	`setPreferredCipherSC(String name)` Set the preferred cipher for the Server->Client stream.
`void`	`setPreferredCompressionCS(String name)` Set the preferred compression for the Client->Server stream.
`void`	`setPreferredCompressionSC(String name)` Set the preferred compression for the Server->Client stream.
`void`	`setPreferredKeyExchange(String name)` Set the preferred key exchange method.
`void`	`setPreferredMacCS(int[] order)` Set the preferred CS Mac order
`void`	`setPreferredMacCS(String name)` Set the preferred mac for the Client->Server stream.
`void`	`setPreferredMacSC(int[] order)` Set the preferred SC Mac order
`void`	`setPreferredMacSC(String name)` Set the preferred mac for the Server->Client stream.
`void`	`setPreferredPublicKey(String name)` Set the preferred public key algorithm.
`void`	`setPublicKeyPreferredPosition(String name, int position)`
`void`	`setSendIgnorePacketOnIdle(boolean sendIgnorePacketOnIdle)`
`void`	`setSFTPProvider(String sftpProvider)` Set the path to the SFTP provider.
`void`	`setSocketTimeout(int socketTimeout)`
`void`	`setX11AuthenticationCookie(byte[] x11FakeCookie)` Set the fake cookie used for X11 authentication
`void`	`setX11Display(String xDisplay)` Set the DISPLAY variable for the SSH connection.
`void`	`setX11RealCookie(byte[] x11RealCookie)` Sets the real X11 authentication cookie which can be obtained from the users $HOME/.Xauthority file.
`void`	`setX11RequestListener(ForwardingRequestListener x11Listener)` Set the listener to which X11 forwarding requests will be processed.
`ComponentFactory`	`supportedCiphersCS()`
`ComponentFactory`	`supportedCiphersSC()` Returns this context's supported cipher algorithms.
`ComponentFactory`	`supportedCompressionsCS()` Get this context's supported CS compression algorithms.
`ComponentFactory`	`supportedCompressionsSC()` Get this context's supported SC compression algorithms.
`ComponentFactory`	`supportedKeyExchanges()` Get this context's supported key exchange methods.
`ComponentFactory`	`supportedMacsCS()` Get this context's supported message authentication algorithms CS.
`ComponentFactory`	`supportedMacsSC()` Get this context's supported message authentication algorithms SC.
`ComponentFactory`	`supportedPublicKeys()` Get this context's supported public keys.

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 String CIPHER_TRIPLEDES_CBC
```
    See Also:
    Constant Field Values
  - CIPHER_TRIPLEDES_CTR
```
public static final String CIPHER_TRIPLEDES_CTR
```
    See Also:
    Constant Field Values
  - CIPHER_BLOWFISH_CBC
```
public static final String CIPHER_BLOWFISH_CBC
```
    See Also:
    Constant Field Values
  - CIPHER_AES128_CBC
```
public static final String CIPHER_AES128_CBC
```
    See Also:
    Constant Field Values
  - CIPHER_AES192_CBC
```
public static final String CIPHER_AES192_CBC
```
    See Also:
    Constant Field Values
  - CIPHER_AES256_CBC
```
public static final String CIPHER_AES256_CBC
```
    See Also:
    Constant Field Values
  - CIPHER_AES128_CTR
```
public static final String CIPHER_AES128_CTR
```
    See Also:
    Constant Field Values
  - CIPHER_AES192_CTR
```
public static final String CIPHER_AES192_CTR
```
    See Also:
    Constant Field Values
  - CIPHER_AES256_CTR
```
public static final String CIPHER_AES256_CTR
```
    See Also:
    Constant Field Values
  - CIPHER_ARCFOUR
```
public static final String CIPHER_ARCFOUR
```
    See Also:
    Constant Field Values
  - CIPHER_ARCFOUR_128
```
public static final String CIPHER_ARCFOUR_128
```
    See Also:
    Constant Field Values
  - CIPHER_ARCFOUR_256
```
public static final String CIPHER_ARCFOUR_256
```
    See Also:
    Constant Field Values
  - HMAC_SHA1
```
public static final String HMAC_SHA1
```
    SHA1 message authentication
    
    See Also:
    Constant Field Values
  - HMAC_SHA1_96
```
public static final String HMAC_SHA1_96
```
    SHA1 96 bit message authentication
    
    See Also:
    Constant Field Values
  - HMAC_MD5
```
public static final String HMAC_MD5
```
    MD5 message authentication
    
    See Also:
    Constant Field Values
  - HMAC_MD5_96
```
public static final String HMAC_MD5_96
```
    MD5 96 bit message authentication
    
    See Also:
    Constant Field Values
  - HMAC_SHA256
```
public static final String HMAC_SHA256
```
    See Also:
    Constant Field Values
  - COMPRESSION_NONE
```
public static final String COMPRESSION_NONE
```
    Compression off
    
    See Also:
    Constant Field Values
  - COMPRESSION_ZLIB
```
public static final String COMPRESSION_ZLIB
```
    Optional zlib compression (requires sshtools-zlib.jar in classpath)
    
    See Also:
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_GROUP1_SHA1
```
public static final String KEX_DIFFIE_HELLMAN_GROUP1_SHA1
```
    The required key exchange method
    
    See Also:
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_GROUP14_SHA1
```
public static final String KEX_DIFFIE_HELLMAN_GROUP14_SHA1
```
    See Also:
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA1
```
public static final String KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA1
```
    Optional key exchange mechanism in which the server maintains a list of acceptable generators and primes
    
    See Also:
    Constant Field Values
  - KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA256
```
public static final String KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA256
```
    See Also:
    Constant Field Values
  - PUBLIC_KEY_SSHDSS
```
public static final String PUBLIC_KEY_SSHDSS
```
    SSH2 DSA Public Key
    
    See Also:
    Constant Field Values
  - PUBLIC_KEY_SSHRSA
```
public static final String PUBLIC_KEY_SSHRSA
```
    SSH2 RSA Public Key
    
    See Also:
    Constant Field Values
- Constructor Detail
  - Ssh2Context
```
public Ssh2Context()
            throws SshException
```
    Contructs a default context
    
    Throws:
    
    SshException
- Method Detail
  - getMaximumPacketLength
```
public int getMaximumPacketLength()
```
    Get the maximim packet size supported by the transport layer.
    
    Returns:
    int
  - setGssCallback
```
public void setGssCallback(MaverickCallbackHandler gsscall)
```
  - getGssCallback
```
public MaverickCallbackHandler getGssCallback()
```
  - setMaximumPacketLength
```
public void setMaximumPacketLength(int maxPacketLength)
```
    Set the maximum packet size supported by the transport layer. This would not normally require changing but some servers may support larger packets. The default and minimum size is 35,000 bytes.
    
    Parameters:
    maxPacketLength - int
  - setChannelLimit
```
public void setChannelLimit(int maxChannels)
```
    Description copied from interface: SshContext
    
    Set the maximum number of channels that are allowed open at any one time.
    
    Specified by:
    
    setChannelLimit in interface SshContext
  - getChannelLimit
```
public int getChannelLimit()
```
    Description copied from interface: SshContext
    
    Get the maximum number of channels that are allowed open at any one time.
    
    Specified by:
    
    getChannelLimit in interface SshContext
    
    Returns:
    the maximum number of channels
  - setX11Display
```
public void setX11Display(String xDisplay)
```
    Description copied from interface: SshContext
    
    Set the DISPLAY variable for the SSH connection. If this is set the SSH sessions will have their DISPLAY variable set and X sessions will be forwarded over the SSH connection to the display specified.
    
    Specified by:
    
    setX11Display in interface SshContext
    
    Parameters:
    xDisplay - the display in the form localhost:1
  - getX11Display
```
public String getX11Display()
```
    Description copied from interface: SshContext
    
    Get the currently configured XDisplay setting which will be null if no display is currently set.
    
    Specified by:
    
    getX11Display in interface SshContext
    
    Returns:
    String
  - getX11AuthenticationCookie
```
public byte[] getX11AuthenticationCookie()
                                  throws SshException
```
    Description copied from interface: SshContext
    
    Get a fake random cookie for X11 authentication
    
    Specified by:
    
    getX11AuthenticationCookie in interface SshContext
    
    Returns:
    byte[]
    
    Throws:
    
    SshException
  - setX11AuthenticationCookie
```
public void setX11AuthenticationCookie(byte[] x11FakeCookie)
```
    Description copied from interface: SshContext
    
    Set the fake cookie used for X11 authentication
    
    Specified by:
    
    setX11AuthenticationCookie in interface SshContext
  - setX11RealCookie
```
public void setX11RealCookie(byte[] x11RealCookie)
```
    Description copied from interface: SshContext
    
    Sets the real X11 authentication cookie which can be obtained from the users $HOME/.Xauthority file.
    
    Specified by:
    
    setX11RealCookie in interface SshContext
  - getX11RealCookie
```
public byte[] getX11RealCookie()
                        throws SshException
```
    Description copied from interface: SshContext
    
    Get the real X11 authentication cookie, if not cookie has been set the fake cookie will be returned.
    
    Specified by:
    
    getX11RealCookie in interface SshContext
    
    Returns:
    byte[]
    
    Throws:
    
    SshException
  - setX11RequestListener
```
public void setX11RequestListener(ForwardingRequestListener x11Listener)
```
    Description copied from interface: SshContext
    
    Set the listener to which X11 forwarding requests will be processed.
    
    Specified by:
    
    setX11RequestListener in interface SshContext
  - getX11RequestListener
```
public ForwardingRequestListener getX11RequestListener()
```
    Description copied from interface: SshContext
    
    Get the X11 forwarding request listener.
    
    Specified by:
    
    getX11RequestListener in interface SshContext
    
    Returns:
    ForwardingRequestListener
  - getBannerDisplay
```
public BannerDisplay getBannerDisplay()
```
    Get the contexts banner display
    
    Returns:
    the banner display, may be null
  - setBannerDisplay
```
public void setBannerDisplay(BannerDisplay bannerdisplay)
```
    Set a banner display for callback of authentication banners
    
    Parameters:
    bannerdisplay - the banner display, may be null
  - supportedCiphersSC
```
public ComponentFactory supportedCiphersSC()
```
    Returns this context's supported cipher algorithms.
    
    Returns:
    the component factory
  - supportedCiphersCS
```
public ComponentFactory supportedCiphersCS()
```
  - getPreferredCipherCS
```
public String getPreferredCipherCS()
```
    Get the currently preferred cipher for the Client->Server stream.
    
    Returns:
    the preferred Client-Server cipher
  - setPreferredCipherCS
```
public void setPreferredCipherCS(String name)
                          throws SshException
```
    Set the preferred cipher for the Client->Server stream.
    
    Parameters:
    name -
    
    Throws:
    
    SshException
  - getPreferredCipherSC
```
public String getPreferredCipherSC()
```
    Get the currently preferred cipher for the Server->Client stream.
    
    Returns:
    the preferred Server-Client cipher
  - getCiphersCS
```
public String getCiphersCS()
```
    Get the ciphers for the Client->Server stream.
    
    Returns:
    the Client-Server ciphers in order of preference
  - getCiphersSC
```
public String getCiphersSC()
```
    Get the ciphers for the Server->Client stream.
    
    Returns:
    the Server-Client ciphers in order of preference
  - getMacsCS
```
public String getMacsCS()
```
    Get the ciphers for the Client->Server stream.
    
    Returns:
    the Client-Server ciphers in order of preference
  - getMacsSC
```
public String getMacsSC()
```
    Get the ciphers for the Server->Client stream.
    
    Returns:
    the Server-Client ciphers in order of preference
  - getPublicKeys
```
public String getPublicKeys()
```
    Get the ciphers for the Server->Client stream.
    
    Returns:
    the Server-Client ciphers in order of preference
  - getKeyExchanges
```
public 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
  - 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
  - setCipherPreferredPositionCS
```
public void setCipherPreferredPositionCS(String name,
                                int position)
                                  throws SshException
```
    Throws:
    
    SshException
  - setCipherPreferredPositionSC
```
public void setCipherPreferredPositionSC(String name,
                                int position)
                                  throws SshException
```
    Throws:
    
    SshException
  - setMacPreferredPositionSC
```
public void setMacPreferredPositionSC(String name,
                             int position)
                               throws SshException
```
    Throws:
    
    SshException
  - setMacPreferredPositionCS
```
public void setMacPreferredPositionCS(String name,
                             int position)
                               throws SshException
```
    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
  - 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
  - setPreferredCipherSC
```
public void setPreferredCipherSC(String name)
                          throws SshException
```
    Set the preferred cipher for the Server->Client stream.
    
    Parameters:
    name -
    
    Throws:
    
    SshException
  - supportedMacsSC
```
public ComponentFactory supportedMacsSC()
```
    Get this context's supported message authentication algorithms SC.
    
    Returns:
    the component factory
  - supportedMacsCS
```
public ComponentFactory supportedMacsCS()
```
    Get this context's supported message authentication algorithms CS.
    
    Returns:
    the component factory
  - getPreferredMacCS
```
public String getPreferredMacCS()
```
    Get the currently preferred mac for the Client->Server stream.
    
    Returns:
    the preferred Client-Server mac
  - setPreferredMacCS
```
public void setPreferredMacCS(String name)
                       throws SshException
```
    Set the preferred mac for the Client->Server stream.
    
    Parameters:
    name -
    
    Throws:
    
    SshException
  - getPreferredMacSC
```
public String getPreferredMacSC()
```
    Get the currently supported mac for the Server-Client stream.
    
    Returns:
    the preferred Server-Client mac
  - setPreferredMacSC
```
public void setPreferredMacSC(String name)
                       throws SshException
```
    Set the preferred mac for the Server->Client stream.
    
    Parameters:
    name -
    
    Throws:
    
    SshException
  - supportedCompressionsSC
```
public ComponentFactory supportedCompressionsSC()
```
    Get this context's supported SC compression algorithms.
    
    Returns:
    the component factory
  - supportedCompressionsCS
```
public ComponentFactory supportedCompressionsCS()
```
    Get this context's supported CS compression algorithms.
    
    Returns:
    the component factory
  - getPreferredCompressionCS
```
public String getPreferredCompressionCS()
```
    Get the currently preferred compression for the Client->Server stream.
    
    Returns:
    the preferred Client-Server compression
  - setPreferredCompressionCS
```
public void setPreferredCompressionCS(String name)
                               throws SshException
```
    Set the preferred compression for the Client->Server stream.
    
    Parameters:
    name -
    
    Throws:
    
    SshException
  - getPreferredCompressionSC
```
public String getPreferredCompressionSC()
```
    Get the currently preferred compression for the Server->Client stream.
    
    Returns:
    the preferred Server->Client compression
  - setPreferredCompressionSC
```
public void setPreferredCompressionSC(String name)
                               throws SshException
```
    Set the preferred compression for the Server->Client stream.
    
    Parameters:
    name -
    
    Throws:
    
    SshException
  - enableCompression
```
public void enableCompression()
                       throws SshException
```
    Throws:
    
    SshException
  - disableCompression
```
public void disableCompression()
                        throws SshException
```
    Throws:
    
    SshException
  - supportedKeyExchanges
```
public ComponentFactory supportedKeyExchanges()
```
    Get this context's supported key exchange methods.
    
    Returns:
    the component factory
  - getPreferredKeyExchange
```
public String getPreferredKeyExchange()
```
    Get the currently preferred key exchange method.
    
    Returns:
    the preferred key exhcange
  - setPreferredKeyExchange
```
public void setPreferredKeyExchange(String name)
                             throws SshException
```
    Set the preferred key exchange method.
    
    Parameters:
    name -
    
    Throws:
    
    SshException
  - supportedPublicKeys
```
public ComponentFactory supportedPublicKeys()
```
    Get this context's supported public keys.
    
    Returns:
    the component factory
  - getPreferredPublicKey
```
public String getPreferredPublicKey()
```
    Get the currently preferred public key algorithm.
    
    Returns:
    the preferred public key
  - setPreferredPublicKey
```
public void setPreferredPublicKey(String name)
                           throws SshException
```
    Set the preferred public key algorithm.
    
    Parameters:
    name -
    
    Throws:
    
    SshException
  - setHostKeyVerification
```
public void setHostKeyVerification(HostKeyVerification verify)
```
    Set the host key verification implementation
    
    Specified by:
    
    setHostKeyVerification in interface SshContext
    
    Parameters:
    verify -
  - getHostKeyVerification
```
public HostKeyVerification getHostKeyVerification()
```
    Get the host key verification implementation
    
    Specified by:
    
    getHostKeyVerification in interface SshContext
    
    Returns:
    HostKeyVerification
  - setSFTPProvider
```
public void setSFTPProvider(String sftpProvider)
```
    Description copied from interface: SshContext
    
    Set the path to the SFTP provider. For SSH1 connections an attempt to execute this provider will be made as SSH1 does not support subsystems. For SSH2 connections an attempt will be made to execute this provider if the subsystem cannot be started.
    
    Specified by:
    
    setSFTPProvider in interface SshContext
  - getSFTPProvider
```
public String getSFTPProvider()
```
    Description copied from interface: SshContext
    
    Get the path to the SFTP provider. For SSH1 connections an attempt to execute this provider will be made as SSH1 does not support subsystems. For SSH2 connections an attempt will be made to execute this provider if the subsystem cannot be started. The default is '/usr/libexec/sftp-server'
    
    Specified by:
    
    getSFTPProvider in interface SshContext
    
    Returns:
    String
  - setPartialMessageTimeout
```
public void setPartialMessageTimeout(int partialMessageTimeout)
```
  - getPartialMessageTimeout
```
public int getPartialMessageTimeout()
```
  - isKeyReExchangeDisabled
```
public boolean isKeyReExchangeDisabled()
```
  - setKeyReExchangeDisabled
```
public void setKeyReExchangeDisabled(boolean keyReExchangeDisabled)
```
  - setPublicKeyPreferredPosition
```
public void setPublicKeyPreferredPosition(String name,
                                 int position)
                                   throws SshException
```
    Throws:
    
    SshException
  - setKeyExchangePreferredPosition
```
public void setKeyExchangePreferredPosition(String name,
                                   int position)
                                     throws SshException
```
    Throws:
    
    SshException
  - getIdleConnectionTimeoutSeconds
```
public int getIdleConnectionTimeoutSeconds()
```
  - setIdleConnectionTimeoutSeconds
```
public void setIdleConnectionTimeoutSeconds(int idleConnectionTimeoutSeconds)
```
  - isDHGroupExchangeBackwardsCompatible
```
public boolean isDHGroupExchangeBackwardsCompatible()
```
  - getDHGroupExchangeKeySize
```
public int getDHGroupExchangeKeySize()
```
  - setDHGroupExchangeKeySize
```
public void setDHGroupExchangeKeySize(int dhGroupExchangeKeySize)
```
  - setDHGroupExchangeBackwardsCompatible
```
public void setDHGroupExchangeBackwardsCompatible(boolean dhGroupExchangeBackwardCompatible)
```
  - isSendIgnorePacketOnIdle
```
public boolean isSendIgnorePacketOnIdle()
```
  - setSendIgnorePacketOnIdle
```
public void setSendIgnorePacketOnIdle(boolean sendIgnorePacketOnIdle)
```
  - getKeepAliveMaxDataLength
```
public int getKeepAliveMaxDataLength()
```
  - setKeepAliveMaxDataLength
```
public void setKeepAliveMaxDataLength(int keepAliveMaxDataLength)
```
  - getSocketTimeout
```
public int getSocketTimeout()
```
  - setSocketTimeout
```
public void setSocketTimeout(int socketTimeout)
```
  - enableFIPSMode
```
public void enableFIPSMode()
                    throws SshException
```
    Description copied from interface: SshContext
    
    Enables FIPS compatible algorithms and disables any other non-compatible algorithms.
    
    Specified by:
    
    enableFIPSMode in interface SshContext
    
    Throws:
    
    SshException

Class Ssh2Context

Field Summary

Constructor Summary

Method Summary

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

HMAC_SHA1

HMAC_SHA1_96

HMAC_MD5

HMAC_MD5_96

HMAC_SHA256

COMPRESSION_NONE

COMPRESSION_ZLIB

KEX_DIFFIE_HELLMAN_GROUP1_SHA1

KEX_DIFFIE_HELLMAN_GROUP14_SHA1

KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA1

KEX_DIFFIE_HELLMAN_GROUP_EXCHANGE_SHA256

PUBLIC_KEY_SSHDSS

PUBLIC_KEY_SSHRSA

Constructor Detail

Ssh2Context

Method Detail

getMaximumPacketLength

setGssCallback

getGssCallback

setMaximumPacketLength

setChannelLimit

getChannelLimit

setX11Display

getX11Display

getX11AuthenticationCookie

setX11AuthenticationCookie

setX11RealCookie

getX11RealCookie

setX11RequestListener

getX11RequestListener

getBannerDisplay

setBannerDisplay

supportedCiphersSC

supportedCiphersCS

getPreferredCipherCS

setPreferredCipherCS

getPreferredCipherSC

getCiphersCS

getCiphersSC

getMacsCS

getMacsSC

getPublicKeys

getKeyExchanges

setPreferredCipherSC

setPreferredCipherCS

setCipherPreferredPositionCS

setCipherPreferredPositionSC

setMacPreferredPositionSC

setMacPreferredPositionCS

setPreferredMacSC

setPreferredMacCS

setPreferredCipherSC

supportedMacsSC

supportedMacsCS

getPreferredMacCS

setPreferredMacCS

getPreferredMacSC

setPreferredMacSC

supportedCompressionsSC

supportedCompressionsCS

getPreferredCompressionCS

setPreferredCompressionCS