Type0RaesReadOnlyFile (TrueZIP 6.8.3 API)

Overview

Package

Class

Use

Tree

Deprecated

Index

TrueZIP 6.8.3

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

de.schlichtherle.crypto.io.raes
Class Type0RaesReadOnlyFile

java.lang.Object
  de.schlichtherle.io.rof.AbstractReadOnlyFile
      de.schlichtherle.io.rof.FilterReadOnlyFile
          de.schlichtherle.crypto.io.CipherReadOnlyFile
              de.schlichtherle.crypto.io.raes.RaesReadOnlyFile
                  de.schlichtherle.crypto.io.raes.Type0RaesReadOnlyFile

All Implemented Interfaces:: ReadOnlyFile

class Type0RaesReadOnlyFile
extends RaesReadOnlyFile
extends RaesReadOnlyFile

Reads a type 0 RAES file.

Since:: TrueZIP 6.0
Author:: Christian Schlichtherle

Field Summary
`private byte[]`	`footer` The footer of the data envelope containing the authentication codes.
`private int`	`keyStrength` The key strength.
`private CipherParameters`	`macParam` The parameters required to init the Message Authentication Code (MAC).
`private static long`	`MIN_KEY_RETRY_DELAY` The minimum delay between subsequent attempts to authenticate a key in milliseconds.

Fields inherited from class de.schlichtherle.io.rof.FilterReadOnlyFile
`rof`

Constructor Summary
`Type0RaesReadOnlyFile(ReadOnlyFile rof, Type0RaesParameters parameters)`

Method Summary
`void`	`authenticate()` Authenticates all encrypted data in the read only file.
`private static long`	`enforceSuspensionPenalty(long last)`
`int`	`getKeySizeBits()` Returns the key size in bits which is actually used to decrypt the data of this RAES file.

Methods inherited from class de.schlichtherle.crypto.io.raes.RaesReadOnlyFile
`getInstance, getInstance, readUByte, readUInt, readUShort`

Methods inherited from class de.schlichtherle.crypto.io.CipherReadOnlyFile
`close, computeMac, getFilePointer, init, length, read, read, seek`

Methods inherited from class de.schlichtherle.io.rof.AbstractReadOnlyFile
`read, readFully, readFully, skipBytes`

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

Field Detail

MIN_KEY_RETRY_DELAY

private static final long MIN_KEY_RETRY_DELAY

The minimum delay between subsequent attempts to authenticate a key in milliseconds.

See Also:: Constant Field Values

keyStrength

private final int keyStrength

The key strength.

macParam

private final CipherParameters macParam

The parameters required to init the Message Authentication Code (MAC).

footer

private final byte[] footer

The footer of the data envelope containing the authentication codes.

Constructor Detail

Type0RaesReadOnlyFile

Type0RaesReadOnlyFile(ReadOnlyFile rof,
                      Type0RaesParameters parameters)
                throws NullPointerException,
                       FileNotFoundException,
                       RaesException,
                       RaesKeyException,
                       IOException

Throws:: NullPointerException; FileNotFoundException; RaesException; RaesKeyException; IOException

Method Detail

enforceSuspensionPenalty

private static long enforceSuspensionPenalty(long last)

getKeySizeBits

public int getKeySizeBits()

Description copied from class: RaesReadOnlyFile

Returns the key size in bits which is actually used to decrypt the data of this RAES file.

Specified by:: getKeySizeBits in class RaesReadOnlyFile

authenticate

public void authenticate()
                  throws RaesAuthenticationException,
                         IOException