de.schlichtherle.key
Interface AesKeyProvider

All Superinterfaces:

KeyProvider

All Known Implementing Classes:

PromptingAesKeyProvider

public interface AesKeyProvider
extends KeyProvider

A KeyProvider which allows to select the cipher key strength when creating a new AES encrypted resource or replacing the entire contents of an already existing AES encrypted resource. The cipher key strength for the AES encryption may be either 128, 192 or 256 bits.

Since:

TrueZIP 6.1

Version:

TrueZIP 6.7

Author:

Christian Schlichtherle

Field Summary

static int	KEY_STRENGTH_128 Identifier for a 128 bit ciphering key.
static int	KEY_STRENGTH_192 Identifier for a 192 bit ciphering key.
static int	KEY_STRENGTH_256 Identifier for a 256 bit ciphering key.

Fields inherited from interface de.schlichtherle.key.KeyProvider

MIN_KEY_RETRY_DELAY

Method Summary

int	getKeyStrength() Returns the cipher key strength for the AES encryption.
void	setKeyStrength(int keyStrength) Sets the cipher key strength for the AES encryption.

Methods inherited from interface de.schlichtherle.key.KeyProvider

getCreateKey, getOpenKey, invalidOpenKey

Field Detail

KEY_STRENGTH_128

static final int KEY_STRENGTH_128

Identifier for a 128 bit ciphering key.

See Also:

Constant Field Values

KEY_STRENGTH_192

static final int KEY_STRENGTH_192

Identifier for a 192 bit ciphering key.

See Also:

Constant Field Values

KEY_STRENGTH_256

static final int KEY_STRENGTH_256

Identifier for a 256 bit ciphering key.

See Also:

Constant Field Values

Method Detail

getKeyStrength

int getKeyStrength()

Returns the cipher key strength for the AES encryption.

Returns:

One of KEY_STRENGTH_128, KEY_STRENGTH_192 or KEY_STRENGTH_256.

setKeyStrength

void setKeyStrength(int keyStrength)

Sets the cipher key strength for the AES encryption.

Parameters:

keyStrength - One of KEY_STRENGTH_128, KEY_STRENGTH_192 or KEY_STRENGTH_256.

Throws:

IllegalArgumentException - If the preconditions for the parameter do not hold.