org.apache.sshd.common.config.keys.loader

Class AbstractPrivateKeyObfuscator

java.lang.Object

org.apache.sshd.common.config.keys.loader.AbstractPrivateKeyObfuscator

All Implemented Interfaces:

PrivateKeyObfuscator

Direct Known Subclasses:

AESPrivateKeyObfuscator, DESPrivateKeyObfuscator

public abstract class AbstractPrivateKeyObfuscator
extends Object
implements PrivateKeyObfuscator

Author:

Apache MINA SSHD Project

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractPrivateKeyObfuscator(String name)

Method Summary

Modifier and Type	Method and Description
<A extends Appendable> A	appendPrivateKeyEncryptionContext(A sb, PrivateKeyEncryptionContext encContext)
protected byte[]	applyPrivateKeyCipher(byte[] bytes, PrivateKeyEncryptionContext encContext, int numBits, byte[] keyValue, boolean encryptIt)
protected byte[]	deriveEncryptionKey(PrivateKeyEncryptionContext encContext, int outputKeyLength)
protected byte[]	generateInitializationVector(int keyLength)
byte[]	generateInitializationVector(PrivateKeyEncryptionContext encContext)
String	getCipherName()
protected abstract int	resolveKeyLength(PrivateKeyEncryptionContext encContext)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.sshd.common.config.keys.loader.PrivateKeyObfuscator

applyPrivateKeyCipher, getSupportedKeySizes

Constructor Detail

AbstractPrivateKeyObfuscator

protected AbstractPrivateKeyObfuscator(String name)

Method Detail

getCipherName

public final String getCipherName()

Specified by:

getCipherName in interface PrivateKeyObfuscator

Returns:

Basic cipher used to obfuscate

generateInitializationVector

public byte[] generateInitializationVector(PrivateKeyEncryptionContext encContext)
                                    throws GeneralSecurityException

Specified by:

generateInitializationVector in interface PrivateKeyObfuscator

Parameters:

encContext - The encryption context

Returns:

An initialization vector suitable to the specified context

Throws:

GeneralSecurityException

appendPrivateKeyEncryptionContext

public <A extends Appendable> A appendPrivateKeyEncryptionContext(A sb,
                                                                  PrivateKeyEncryptionContext encContext)
                                                           throws IOException

Specified by:

appendPrivateKeyEncryptionContext in interface PrivateKeyObfuscator

Type Parameters:

A - Appendable generic type

Parameters:

sb - The Appendable instance to update

Returns:

Same appendable instance

Throws:

IOException

generateInitializationVector

protected byte[] generateInitializationVector(int keyLength)

resolveKeyLength

protected abstract int resolveKeyLength(PrivateKeyEncryptionContext encContext)
                                 throws GeneralSecurityException

Throws:

GeneralSecurityException

deriveEncryptionKey

protected byte[] deriveEncryptionKey(PrivateKeyEncryptionContext encContext,
                                     int outputKeyLength)
                              throws GeneralSecurityException

Throws:

GeneralSecurityException

applyPrivateKeyCipher

protected byte[] applyPrivateKeyCipher(byte[] bytes,
                                       PrivateKeyEncryptionContext encContext,
                                       int numBits,
                                       byte[] keyValue,
                                       boolean encryptIt)
                                throws GeneralSecurityException

Throws:

GeneralSecurityException