1 /*

     2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 package sun.security.provider;

    25 

    26 import java.math.BigInteger;

    27 

    28 import java.security.*;

    29 import java.security.SecureRandom;

    30 import java.security.spec.AlgorithmParameterSpec;

    31 

    32 /**

    33  * A fake DSA key pair generator

    34  */

    35 class DSAKeyPairGenerator extends KeyPairGenerator {

    36 

    37     private int plen;

    38 

    39     DSAKeyPairGenerator(int defaultKeySize) {

    40         super("DSA");

    41         this.plen = defaultKeySize;

    42     }

    43 

    44     public void initialize(int modlen, SecureRandom random) {

    45         this.plen = modlen;

    46     }

    47 

    48     public void initialize(AlgorithmParameterSpec params, SecureRandom random) {

    49         throw new UnsupportedOperationException();

    50     }

    51 

    52     public KeyPair generateKeyPair() {

    53         BigInteger p, q, g, x, y;

    54         switch (plen) {

    55             case 1024:

    56                 p = new BigInteger("178011905478542266528237562450159990145232"

    57                         + "156369120674273274450314442865788737020770612695252"

    58                         + "123463079567156784778466449970650770920727857050009"

    59                         + "668388144034129745221171818506047231150039301079959"

    60                         + "358067395348717066319802262019714966524135060945913"

    61                         + "707594956514672855690606794135837542707371727429551"

    62                         + "343320695239");

    63                 q = new BigInteger("864205495604807476120572616017955259175325"

    64                         + "408501");

    65                 g = new BigInteger("174068207532402095185811980123523436538604"

    66                         + "490794561350978495831040599953488455823147851597408"

    67                         + "940950725307797094915759492368300574252438761037084"

    68                         + "473467180148876118103083043754985190983472601550494"

    69                         + "691329488083395492313850000361646482644608492304078"

    70                         + "721818959999056496097769368017749273708962006689187"

    71                         + "956744210730");

    72                 x = new BigInteger("442684721233431748836258763370873041965448"

    73                         + "305045");

    74                 y = new BigInteger("123777377875361061959303516913138943002334"

    75                         + "907914087825062123737715425120688699041350157178201"

    76                         + "400875613890444051801751930684745642628053940339973"

    77                         + "838660880918443284038995141330502246221730915504106"

    78                         + "313025753680709037893119973285385498869618080832350"

    79                         + "844717549458284541384384444940685082987448444197127"

    80                         + "109727215326");

    81                 break;

    82             case 3072:

    83                 p = new BigInteger("532424770282957507167558442446475365039221"

    84                         + "865310725601984444684810811113744209961033785957055"

    85                         + "545569814329215072178264469737927701168579964248618"

    86                         + "212671015750272795670312875451455848633455356647610"

    87                         + "802537682630581977793580392148938495801039643027210"

    88                         + "168055234243089546290868853109011307872303192870862"

    89                         + "928522910714047973751079687063489704904165319118754"

    90                         + "414656318529199596549052269402875554159175957058778"

    91                         + "440558421673575502884909440510567191072050738584727"

    92                         + "120524174557883883057055053123583287619621138916493"

    93                         + "103747092870334536468061850120264153241617645557971"

    94                         + "369719361654590867807897284715299844320510777830158"

    95                         + "726099043158186232574541934847234927190558272654504"

    96                         + "899757279197741136733127726856995584055651857157703"

    97                         + "730144527174175430693903863066052387871964460507889"

    98                         + "647358151911550149297202134918108185581732063173116"

    99                         + "923323722454275514471399056679497166381315291238166"

   100                         + "678637058042047687405023560967657729197010282296512"

   101                         + "1019243318222397");

   102                 q = new BigInteger("890750162030504407723769200757822201430799"

   103                         + "34855896740921457815099167207156753");

   104                 g = new BigInteger("151817606774376623890824510431247991418389"

   105                         + "715779225250508738780526725946562383344295250350988"

   106                         + "771843988677909140611473778208677098146023000408394"

   107                         + "159085130929460916510001933636711147155614261913281"

   108                         + "024881629605746742555704817858764668833915862917006"

   109                         + "598838541275997577579609978297421111961935816027196"

   110                         + "483840098753346970227821715342000582711792748060856"

   111                         + "726896896804543780217869880654497603605897208724113"

   112                         + "159746510357451233393865294043543249227656881945445"

   113                         + "911394836487973565655780621125471620102365417701222"

   114                         + "942700788591992318925980959657031578942777920589286"

   115                         + "616050851348109471636081284309144953091734152913609"

   116                         + "446411782660994503265873790796828974300693496175976"

   117                         + "687169380996928285288177682058646187108156643041984"

   118                         + "849723272840833108573298006600021948389582796433112"

   119                         + "947515654733901137745000270350091408182905439114222"

   120                         + "789179830877253611946986888461931792357280552721443"

   121                         + "254779196196933589018709692301251250169609249601817"

   122                         + "4795480503442737");

   123                 x = new BigInteger("837184725379267020693579006510066460977336"

   124                         + "11851797067505263114214549968402803");

   125                 y = new BigInteger("395340495486576955293430186860596538887519"

   126                         + "532234445217156133155957480616804094258448364164620"

   127                         + "019669119585215430588435624960233328621409901309332"

   128                         + "192899527076171337665680476899693664056285881110265"

   129                         + "747619109873269836751712303602309960796986216520795"

   130                         + "801714761851172570535758859846766099312622783018124"

   131                         + "479033035974495130498276693342256396509951099944860"

   132                         + "886247767918456849069941054372775951688384599525157"

   133                         + "707186634084399395289878437457318095050730531728857"

   134                         + "772445883395712924633196197942869159234956079072812"

   135                         + "033713932103618702222793066673087288841096282175640"

   136                         + "243353943285718935517693389945339235110435667386410"

   137                         + "827568246083609394541667076709869892137539964277111"

   138                         + "881671381034966060604088870102183420000265271778711"

   139                         + "380501229707440889595235145225482336904915838699846"

   140                         + "941323450568220944649213026904670943083185766542427"

   141                         + "196471392765688014947830444837953042683779059773143"

   142                         + "877079141940001705246446188097009313372159366032655"

   143                         + "5436444354063312");

   144                 break;

   145             default:

   146                 throw new AssertionError("Unknown keySize " + plen);

   147         }

   148 

   149         try {

   150             return new KeyPair(new DSAPublicKeyImpl(y, p, q, g),

   151                     new DSAPrivateKey(x, p, q, g));

   152         } catch (InvalidKeyException e) {

   153             throw new ProviderException(e);

   154         }

   155     }

   156 }