gnu.crypto.mac
Class HMacFactory

java.lang.Object
  gnu.crypto.mac.HMacFactory

All Implemented Interfaces:

Registry

public class HMacFactory

extends java.lang.Object

implements Registry

A Factory to instantiate Keyed-Hash Message Authentication Code (HMAC) algorithm instances.

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 IMac	getInstance(java.lang.String name) Return an instance of a HMAC algorithm given the name of its underlying hash function, prefixed with the literal defined in Registry.HMAC_NAME_PREFIX.
static java.util.Set	getNames() Returns a Set of names of HMAC algorithms 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 IMac getInstance(java.lang.String name)

Return an instance of a HMAC algorithm given the name of its underlying hash function, prefixed with the literal defined in Registry.HMAC_NAME_PREFIX.

Parameters:

name - the fully qualified name of the underlying algorithm: composed as the concatenation of a literal prefix (see Registry.HMAC_NAME_PREFIX) and the name of the underlying hash algorithm.

Returns:

an instance of the HMAC algorithm, or null if none can be constructed.

Throws:

java.lang.InternalError - if the implementation does not pass its self-test.

getNames

public static final java.util.Set getNames()

Returns a Set of names of HMAC algorithms supported by this Factory.

Returns:

a Set of HMAC algorithm names (Strings).