org.apache.sshd.client.kex

Class FixedDHGEX

java.lang.Object

org.apache.sshd.client.kex.DHGEX

org.apache.sshd.client.kex.FixedDHGEX

All Implemented Interfaces:

org.apache.sshd.common.KeyExchange

Direct Known Subclasses:

FixedDHGEX256

public class FixedDHGEX
extends org.apache.sshd.client.kex.DHGEX

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FixedDHGEX.Factory Named factory for DHGEX key exchange

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_DHGEX_KEY_SIZE
static int	MAX_DHGEX_KEY_SIZE
static String	MAX_DHGEX_KEY_SIZE_PROP System property used to configure the value for the maximum supported Diffie-Hellman Group Exchange key size.
static int	MIN_DHGEX_KEY_SIZE The min.
static int	PREFERRED_DHGEX_KEY_SIZE

Constructor Summary

Constructors

Constructor and Description
FixedDHGEX()

Method Summary

Methods inherited from class org.apache.sshd.client.kex.DHGEX

getDH, getH, getHash, getK, getServerKey, init, next

Methods inherited from class java.lang.Object

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

Field Detail

MAX_DHGEX_KEY_SIZE_PROP

public static final String MAX_DHGEX_KEY_SIZE_PROP

System property used to configure the value for the maximum supported Diffie-Hellman Group Exchange key size. If not set, then an internal auto-discovery mechanism is employed. If set to negative value then Diffie-Hellman Group Exchange is disabled. If set to a negative value then Diffie-Hellman Group Exchange is disabled

See Also:

Constant Field Values

MIN_DHGEX_KEY_SIZE

public static final int MIN_DHGEX_KEY_SIZE

The min. key size value used for testing whether Diffie-Hellman Group Exchange is supported or not. According to RFC 4419 section 3: "Servers and clients SHOULD support groups with a modulus length of k bits, where 1024 <= k <= 8192".

See Also:

Constant Field Values

DEFAULT_DHGEX_KEY_SIZE

public static final int DEFAULT_DHGEX_KEY_SIZE

See Also:

Constant Field Values

PREFERRED_DHGEX_KEY_SIZE

public static final int PREFERRED_DHGEX_KEY_SIZE

See Also:

Constant Field Values

MAX_DHGEX_KEY_SIZE

public static final int MAX_DHGEX_KEY_SIZE

See Also:

Constant Field Values

Constructor Detail

FixedDHGEX

public FixedDHGEX()