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: 1.2 $

Field Summary

Fields inherited from interface gnu.crypto.Registry

AES_CIPHER, ANUBIS_CIPHER, ARCFOUR_PRNG, BLOWFISH_CIPHER, CAST_128_CIPHER, CAST128_CIPHER, CAST5_CIPHER, CBC_MODE, CFB_MODE, CTR_MODE, DES_CIPHER, DESEDE_CIPHER, DH_KA, DH_KPG, DSA_KPG, DSA_SIG, DSS_KPG, DSS_SIG, ECB_MODE, ELGAMAL_KA, EME_PKCS1_V1_5_PAD, GKR_CERTIFICATES, GKR_CIPHER_AES_128_CBC, GKR_CIPHER_AES_128_OFB, GKR_HMAC_MD5_128, GKR_HMAC_MD5_96, GKR_HMAC_SHA_160, GKR_HMAC_SHA_96, GKR_MAGIC, GKR_PRIVATE_KEYS, GKR_PUBLIC_CREDENTIALS, GNU_CRYPTO, HAVAL_HASH, HMAC_NAME_PREFIX, ICM_MODE, ICM_PRNG, KHAZAD_CIPHER, MAGIC_RAW_DH_PRIVATE_KEY, MAGIC_RAW_DH_PUBLIC_KEY, MAGIC_RAW_DSS_PRIVATE_KEY, MAGIC_RAW_DSS_PUBLIC_KEY, MAGIC_RAW_DSS_SIGNATURE, MAGIC_RAW_RSA_PRIVATE_KEY, MAGIC_RAW_RSA_PSS_SIGNATURE, MAGIC_RAW_RSA_PUBLIC_KEY, MAGIC_RAW_SRP_PRIVATE_KEY, MAGIC_RAW_SRP_PUBLIC_KEY, MD_PRNG, MD2_HASH, MD4_HASH, MD5_HASH, NULL_CIPHER, OFB_MODE, PBKDF2_PRNG_PREFIX, PKCS7_PAD, QOP_AUTH, QOP_AUTH_CONF, QOP_AUTH_INT, RAW_ENCODING, RAW_ENCODING_ID, RC4_PRNG, REUSE_FALSE, REUSE_TRUE, RIJNDAEL_CIPHER, RIPEMD_128_HASH, RIPEMD_160_HASH, RIPEMD128_HASH, RIPEMD160_HASH, RSA_KPG, RSA_PKCS1_V1_5_SIG, RSA_PSS_SIG, SASL_ANONYMOUS_MECHANISM, SASL_AUTH_INFO_PROVIDER_PKGS, SASL_AUTHORISATION_ID, SASL_BUFFER_MAX_LIMIT, SASL_CALLBACK_HANDLER, SASL_CRAM_MD5_MECHANISM, SASL_FOUR_BYTE_MAX_LIMIT, SASL_HMAC_MD5_IALG, SASL_HMAC_SHA_IALG, SASL_ONE_BYTE_MAX_LIMIT, SASL_PASSWORD, SASL_PLAIN_MECHANISM, SASL_PREFIX, SASL_PROTOCOL, SASL_SERVER_NAME, SASL_SRP_MECHANISM, SASL_TWO_BYTE_MAX_LIMIT, SASL_USERNAME, SERPENT_CIPHER, SERVER_AUTH_FALSE, SERVER_AUTH_TRUE, SHA_1_HASH, SHA_HASH, SHA1_HASH, SHA160_HASH, SHA256_HASH, SHA384_HASH, SHA512_HASH, SQUARE_CIPHER, SRP_KPG, SRP_SASL_KA, SRP_TLS_KA, SRP6_KA, STRENGTH_HIGH, STRENGTH_LOW, STRENGTH_MEDIUM, TBC_PAD, TIGER_HASH, TMMH16, TRIPLEDES_CIPHER, 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:

java.lang.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).