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SRPRegistry.java

package gnu.crypto.sasl.srp;

// ----------------------------------------------------------------------------
// $Id: SRPRegistry.java,v 1.6 2005/10/06 04:24:18 rsdio Exp $
//
// Copyright (C) 2003 Free Software Foundation, Inc.
//
// This file is part of GNU Crypto.
//
// GNU Crypto is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
//
// GNU Crypto is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; see the file COPYING.  If not, write to the
//
//    Free Software Foundation Inc.,
//    51 Franklin Street, Fifth Floor,
//    Boston, MA 02110-1301
//    USA
//
// Linking this library statically or dynamically with other modules is
// making a combined work based on this library.  Thus, the terms and
// conditions of the GNU General Public License cover the whole
// combination.
//
// As a special exception, the copyright holders of this library give
// you permission to link this library with independent modules to
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// ----------------------------------------------------------------------------

import gnu.crypto.Registry;

/**
 * <p>A list of key names designating the values exchanged between the server
 * and client in an SRP communication authentication phase.</p>
 *
 * @version $Revision: 1.6 $
 */
00054 public interface SRPRegistry {

   /** Indices of (N, g) parameter values for SRP (.conf) password database. */
00057    String N_2048_BITS = "1";
   String N_1536_BITS = "2";
   String N_1280_BITS = "3";
   String N_1024_BITS = "4";
   String N_768_BITS =  "5";
   String N_640_BITS =  "6";
   String N_512_BITS =  "7";

   /** Available hash algorithms for all SRP calculations. */
00066    String[] SRP_ALGORITHMS = {
      Registry.SHA160_HASH, // the default one
      Registry.MD5_HASH,
      Registry.RIPEMD128_HASH,
      Registry.RIPEMD160_HASH,

      Registry.SHA256_HASH,
      Registry.SHA384_HASH,
      Registry.SHA512_HASH
   };

   /**
    * The name of the default message digest algorithm to use when no name is
    * explicitely given. In this implementation it is the <b>first</b> among
    * those supported; i.e. the algorithm at index position #0: SHA with
    * 160-bit output.
    */
00083    String SRP_DEFAULT_DIGEST_NAME = SRP_ALGORITHMS[0];

   /**
    * The property name of the message digest algorithm name to use in a given
    * SRP incarnation.
    */
00089    String SRP_DIGEST_NAME = "srp.digest.name";

      /** The public shared modulus: n. */
00092       String SHARED_MODULUS = "srp.N";

      /** The GF generator used: g. */
00095       String FIELD_GENERATOR = "srp.g";

      /** The list of server's available security options. */
00098       String AVAILABLE_OPTIONS = "srp.L";

      /** The client's chosen security options. */
00101       String CHOSEN_OPTIONS = "srp.o";

      /** The client's username. */
00104       String USER_NAME = "srp.U";

      /** The client's authorization ID. */
00107       String USER_ROLE = "srp.I";

      /** The user's salt. */
00110       String USER_SALT = "srp.s";

      /** The user's password verifier. */
00113       String PASSWORD_VERIFIER = "srp.v";

      /** The client's public ephemeral exponent: A. */
00116       String CLIENT_PUBLIC_KEY = "srp.A";

      /** The server's public ephemeral exponent: B. */
00119       String SERVER_PUBLIC_KEY = "srp.B";

      /** The client's evidence: M1. */
00122       String CLIENT_EVIDENCE = "srp.M1";

      /** The server's evidence: M2. */
00125       String SERVER_EVIDENCE = "srp.M2";

      /** Name of underlying hash algorithm for use with all SRP calculations. */
00128       String SRP_HASH = "gnu.crypto.sasl.srp.hash";

      /** Name of SRP mandatory service property. */
00131       String SRP_MANDATORY = "gnu.crypto.sasl.srp.mandatory";

      /** Name of SRP replay detection property. */
00134       String SRP_REPLAY_DETECTION = "gnu.crypto.sasl.srp.replay.detection";

      /** Name of SRP integrity protection property. */
00137       String SRP_INTEGRITY_PROTECTION = "gnu.crypto.sasl.srp.integrity";

      /** Name of SRP confidentiality protection property. */
00140       String SRP_CONFIDENTIALITY = "gnu.crypto.sasl.srp.confidentiality";

      /** Name of the main SRP password file pathname property. */
00143    String PASSWORD_FILE = "gnu.crypto.sasl.srp.password.file";

      /**
    * Name of the SRP password database property --a reference to
    * {@link gnu.crypto.sasl.srp.PasswordFile} object.
    */
00149    String PASSWORD_DB = "gnu.crypto.sasl.srp.password.db";

      /** Default fully qualified pathname of the SRP password file. */
00152    String DEFAULT_PASSWORD_FILE = "/etc/tpasswd";

   /** Default value for replay detection security service. */
00155    boolean DEFAULT_REPLAY_DETECTION = true;

   /** Default value for integrity protection security service. */
00158    boolean DEFAULT_INTEGRITY = true; // implied by the previous option

   /** Default value for confidentiality protection security service. */
00161    boolean DEFAULT_CONFIDENTIALITY = false;

   // constants defining HMAC names
   String HMAC_SHA1 =       "hmac-sha1";
   String HMAC_MD5 =        "hmac-md5";
   String HMAC_RIPEMD_160 = "hmac-ripemd-160";

   /** Available HMAC algorithms for integrity protection. */
00169    String[] INTEGRITY_ALGORITHMS = { HMAC_SHA1, HMAC_MD5, HMAC_RIPEMD_160 };

   // constants defining Cipher names
   String AES =      "aes";
   String BLOWFISH = "blowfish";

   /** Available Cipher algorithms for confidentiality protection. */
00176    String[] CONFIDENTIALITY_ALGORITHMS = { AES, BLOWFISH };

   /** String for mandatory replay detection. */
00179    String OPTION_MANDATORY = "mandatory";

   /** String for mda: the SRP digest algorithm name. */
00182    String OPTION_SRP_DIGEST = "mda";

   /** String for mandatory replay detection. */
00185    String OPTION_REPLAY_DETECTION = "replay_detection";

   /** String for mandatory integrity protection. */
00188    String OPTION_INTEGRITY = "integrity";

   /** String for mandatory confidentiality protection. */
00191    String OPTION_CONFIDENTIALITY = "confidentiality";

   /** String for mandatory replay detection. */
00194    String OPTION_MAX_BUFFER_SIZE = "maxbuffersize";

   /** String for no mandatory security service. */
00197    String MANDATORY_NONE = "none";

   /** Default mandatory security service required. */
//   String DEFAULT_MANDATORY = MANDATORY_NONE;
00201    String DEFAULT_MANDATORY = OPTION_REPLAY_DETECTION;
//   String DEFAULT_MANDATORY = OPTION_INTEGRITY;
//   String DEFAULT_MANDATORY = OPTION_CONFIDENTIALITY;

   /** Name of the UID field in the plain password file. */
00206    String MD_NAME_FIELD = "srp.md.name";

   /** Name of the GID field in the plain password file. */
00209    String USER_VERIFIER_FIELD = "srp.user.verifier";

   /** Name of the GECOS field in the plain password file. */
00212    String SALT_FIELD = "srp.salt";

   /** Name of the SHELL field in the plain password file. */
00215    String CONFIG_NDX_FIELD = "srp.config.ndx";

   /** Minimum bitlength of the SRP public modulus. */
00218    int MINIMUM_MODULUS_BITLENGTH = 512;
}

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