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gnu.crypto.mac
Class HMacFactory

java.lang.Object
  extended bygnu.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).

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