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gnu.crypto.mode
Class ModeFactory

java.lang.Object
  |
  +--gnu.crypto.mode.ModeFactory
All Implemented Interfaces:
Registry

public class ModeFactory
extends java.lang.Object
implements Registry

A Factory to instantiate block cipher modes of operations.

Version:
$Revision: 1.4 $

Fields inherited from interface gnu.crypto.Registry
AES_CIPHER, ANUBIS_CIPHER, CTR_MODE, DSA_KPG, DSA_SIG, DSS_KPG, DSS_SIG, ECB_MODE, GNU_CRYPTO, HMAC_NAME_PREFIX, ICM_MODE, ICM_PRNG, KHAZAD_CIPHER, MD_PRNG, MD4_HASH, MD5_HASH, NULL_CIPHER, OFB_MODE, PKCS7_PAD, RIJNDAEL_CIPHER, RIPEMD_128_HASH, RIPEMD_160_HASH, RIPEMD128_HASH, RIPEMD160_HASH, RSA_KPG, RSA_PSS_SIG, SERPENT_CIPHER, SHA_1_HASH, SHA_HASH, SHA1_HASH, SHA160_HASH, SQUARE_CIPHER, TBC_PAD, TMMH16, TWOFISH_CIPHER, UHASH32, UMAC_PRNG, UMAC32, WHIRLPOOL_HASH
 
Method Summary
static IMode getInstance(java.lang.String mode, IBlockCipher cipher, int cipherBlockSize)
           
static IMode getInstance(java.lang.String mode, java.lang.String cipher, int cipherBlockSize)
          Returns an instance of a block cipher mode of operations given its name and characteristics of the underlying block cipher.
static java.util.Set getNames()
          Returns a Set of names of mode supported by this Factory.
 
Methods inherited from class java.lang.Object
, clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Method Detail

getInstance

public static IMode getInstance(java.lang.String mode,
                                java.lang.String cipher,
                                int cipherBlockSize)

Returns an instance of a block cipher mode of operations given its name and characteristics of the underlying block cipher.

Parameters:
mode - the case-insensitive name of the mode of operations.
cipher - the case-insensitive name of the block cipher.
cipherBlockSize - the block size, in bytes, of the underlying cipher.
Returns:
an instance of the block cipher algorithm, operating in a given mode of operations, or null if none found.
Throws:
InternalError - if either the mode or the underlying block cipher implementation does not pass its self-test.

getInstance

public static IMode getInstance(java.lang.String mode,
                                IBlockCipher cipher,
                                int cipherBlockSize)

getNames

public static final java.util.Set getNames()

Returns a Set of names of mode supported by this Factory.

Returns:
a Set of mode names (Strings).

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