| /* |
| * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.security.rsa; |
| |
| import java.math.BigInteger; |
| |
| import java.security.*; |
| import java.security.spec.AlgorithmParameterSpec; |
| import java.security.spec.RSAKeyGenParameterSpec; |
| |
| import sun.security.x509.AlgorithmId; |
| import static sun.security.rsa.RSAUtil.KeyType; |
| |
| /** |
| * A fake RSA keypair generation. |
| */ |
| public abstract class RSAKeyPairGenerator extends KeyPairGeneratorSpi { |
| |
| // public exponent to use |
| private BigInteger publicExponent; |
| |
| // size of the key to generate, >= RSAKeyFactory.MIN_MODLEN |
| private int keySize; |
| |
| private final KeyType type; |
| private AlgorithmId rsaId; |
| |
| RSAKeyPairGenerator(KeyType type, int defKeySize) { |
| this.type = type; |
| // initialize to default in case the app does not call initialize() |
| initialize(defKeySize, null); |
| } |
| |
| // initialize the generator. See JCA doc |
| public void initialize(int keySize, SecureRandom random) { |
| try { |
| initialize(new RSAKeyGenParameterSpec(keySize, |
| RSAKeyGenParameterSpec.F4), random); |
| } catch (InvalidAlgorithmParameterException iape) { |
| throw new InvalidParameterException(iape.getMessage()); |
| } |
| } |
| |
| // second initialize method. See JCA doc. |
| public void initialize(AlgorithmParameterSpec params, SecureRandom random) |
| throws InvalidAlgorithmParameterException { |
| if (params instanceof RSAKeyGenParameterSpec == false) { |
| throw new InvalidAlgorithmParameterException |
| ("Params must be instance of RSAKeyGenParameterSpec"); |
| } |
| |
| RSAKeyGenParameterSpec rsaSpec = (RSAKeyGenParameterSpec)params; |
| int tmpKeySize = rsaSpec.getKeysize(); |
| BigInteger tmpPublicExponent = rsaSpec.getPublicExponent(); |
| AlgorithmParameterSpec tmpParams = rsaSpec.getKeyParams(); |
| |
| if (tmpPublicExponent == null) { |
| tmpPublicExponent = RSAKeyGenParameterSpec.F4; |
| } else { |
| if (tmpPublicExponent.compareTo(RSAKeyGenParameterSpec.F0) < 0) { |
| throw new InvalidAlgorithmParameterException |
| ("Public exponent must be 3 or larger"); |
| } |
| if (tmpPublicExponent.bitLength() > tmpKeySize) { |
| throw new InvalidAlgorithmParameterException |
| ("Public exponent must be smaller than key size"); |
| } |
| } |
| |
| // do not allow unreasonably large key sizes, probably user error |
| try { |
| RSAKeyFactory.checkKeyLengths(tmpKeySize, tmpPublicExponent, |
| 512, 64 * 1024); |
| } catch (InvalidKeyException e) { |
| throw new InvalidAlgorithmParameterException( |
| "Invalid key sizes", e); |
| } |
| |
| try { |
| this.rsaId = RSAUtil.createAlgorithmId(type, tmpParams); |
| } catch (ProviderException e) { |
| throw new InvalidAlgorithmParameterException( |
| "Invalid key parameters", e); |
| } |
| |
| this.keySize = tmpKeySize; |
| this.publicExponent = tmpPublicExponent; |
| } |
| |
| // generate the keypair. See JCA doc |
| public KeyPair generateKeyPair() { |
| |
| // accommodate odd key sizes in case anybody wants to use them |
| BigInteger e = publicExponent; |
| if (!e.equals(RSAKeyGenParameterSpec.F4)) { |
| throw new AssertionError("Only support F4 now"); |
| } |
| BigInteger p, q, n; |
| |
| // Pre-calculated p and q for e == RSAKeyGenParameterSpec.F4 |
| switch (keySize) { |
| case 1024: |
| p = new BigInteger("1220491537800192366196661816910427" |
| + "2375185130493819649338056226264568132442590" |
| + "2306195110391300298681932797393339089272174" |
| + "24490645345596103420476757417659909"); |
| |
| q = new BigInteger("8480533592205316739308384508307319" |
| + "3310632635895778398980504245932789486455154" |
| + "4265220956952343855842030266079089174423047" |
| + "7382175514060777025691485728713063"); |
| break; |
| case 2048: |
| p = new BigInteger("1600840041787354447543653385760927" |
| + "2642568308955833364523274045522752644800599" |
| + "8669541532595690224703734511692014533312515" |
| + "1867029838883431415692353449578487671384896" |
| + "6611685764860941767986520897595108597563035" |
| + "4023785639802607792535812062420427283857665" |
| + "9883578590844700707106157871508280052743363" |
| + "65749456332400771"); |
| q = new BigInteger("1303880717101677622201474394769850" |
| + "7257196073324816341282215626935164930077468" |
| + "5999131251387556761167658937349436378464220" |
| + "4831804147777472146628148336776639855791417" |
| + "3849903041999943901924899580268176393595653" |
| + "7357080543898614581363167420619163047562600" |
| + "6155574020606891195960345238780709194499010" |
| + "43652862954645301"); |
| break; |
| case 3072: |
| p = new BigInteger("2403380417344527161525447148950543" |
| + "9379802436047502603774623852967909282895900" |
| + "7474251859703715384817150107392592636129366" |
| + "5680725148417789414447073716354703692160825" |
| + "9910929198523923851672957013786423746474670" |
| + "5285365870313877239114930859096040034848729" |
| + "0251735848703378313724697081522892607625120" |
| + "0765531003751468146539682665307123591367928" |
| + "1883284784295069877414057796300484015307336" |
| + "5167008365209621810307777651197826810474895" |
| + "858836606799546054179898997210174885200767"); |
| q = new BigInteger("2046511893459993309772203642844931" |
| + "1853027469856467052942666265372903000702193" |
| + "7794121141028918655144044411085405243565188" |
| + "8318027937964509940322691121105328104450287" |
| + "0400405975394764523022670537180050051646095" |
| + "3320242109876620452477757629185501504625999" |
| + "8487187901577781067325277853462587849063313" |
| + "5364789330253471096755661110557598411108366" |
| + "1566266965711522070909440716658568303529454" |
| + "8075296935907088988560548322049196321207173" |
| + "136436923455192617031129191723631954025427"); |
| break; |
| case 3073: |
| p = new BigInteger("358024230418365680745725628188289" |
| + "996969857993064124357766607077169315932503" |
| + "907030633492082868150575329278637502167157" |
| + "345572819552678004302525872656665704012432" |
| + "644868036964802792468216554458209893873320" |
| + "297608885231998895441396822219845215463819" |
| + "216163684222596923153702349718019538798623" |
| + "793830598445085650304217449539016339429747" |
| + "385490484982419227549804698120223647408926" |
| + "021549912791440569127641517442362359166673" |
| + "430151753277549861070074076802118983202554" |
| + "7683523973"); |
| q = new BigInteger("169752169194244078720180277210205" |
| + "255207796420396114596943944148158798629671" |
| + "789863988428383183103705641694331073747120" |
| + "522505020908219489265190380712941311249155" |
| + "156834674079165492105570443486536740756291" |
| + "314279877766807786397193023304245520017295" |
| + "969248707516367324340822062886043618371887" |
| + "320492710434958863952407959935025922006108" |
| + "282752473898685457767312430894004833959025" |
| + "415996648289919841900071076314309778495245" |
| + "505026665971431792707247787031811654193145" |
| + "1044952887"); |
| break; |
| case 4096: |
| p = new BigInteger("2985635754414679487171962796211911" |
| + "1563710734938215274736352092606404045130913" |
| + "2477365484439939846705721840432140066578525" |
| + "0762327458086280430118434094733412377416194" |
| + "8736124795243564050755767519346747209606612" |
| + "5835460937739428885308798309679495432910469" |
| + "0294757621321446003970767164933974474924664" |
| + "1513767092845098947552598109657871041666676" |
| + "2945573325433283821164032766425479703026349" |
| + "9433641551427112483593214628620450175257586" |
| + "4350119143877183562692754400346175237007314" |
| + "7121580349193179272551363894896336921717843" |
| + "3734726842184251708799134654802475890197293" |
| + "9094908310578403843742664173424031260840446" |
| + "591633359364559754200663"); |
| q = new BigInteger("2279248439141087793789384816271625" |
| + "1304008816573950275844533962181244003563987" |
| + "6638461665174020058827698592331066726709304" |
| + "9231319346136709972639455506783245161859951" |
| + "6191872757335765533547033659834427437142631" |
| + "3801232751161907082392011429712327250253948" |
| + "6012497852063361866175243227579880020724881" |
| + "9393797645220239009219998518884396282407710" |
| + "7199202450846395844337846503427790307364624" |
| + "5124871273035872938616425951596065309519651" |
| + "1519189356431513094684173807318945903212527" |
| + "7712469749366620048658571121822171067675915" |
| + "5479178304648399924549334007222294762969503" |
| + "5341584429803583589276956979963609078497238" |
| + "760757619468018224491053"); |
| break; |
| case 7680: |
| p = new BigInteger("7034022146817764608206409206476311" |
| + "1371065855827199565170055133179419153145313" |
| + "9446295819321510144417300286482767498463255" |
| + "3370362723164324606829434617977090251035572" |
| + "4237546099249090966627372485629853471350368" |
| + "1497807044971675189990783927066958945388379" |
| + "4004871857862380913954692362042250112646330" |
| + "0515873693830575810241740671573357342073942" |
| + "4924331206670599086552994426505996651481869" |
| + "2750320309695596383830444337180596058381417" |
| + "7804256675894755482917598033151085120879826" |
| + "5373459707672000040090469058320463160804122" |
| + "8041026671361647347262771363754358441620179" |
| + "3861076191970047581401830740749715862725492" |
| + "5750077182986169592435996668282677192000592" |
| + "8019204141383012670399208092972174321639234" |
| + "6398779487064860458178135981700487728919191" |
| + "2418625085287791733119321378648688730352488" |
| + "6446800847442687530322927871063574241918202" |
| + "1883228799435533794167861499482410970370569" |
| + "6964781912514810444018313637829915454156777" |
| + "4591735979781496237582756842195362757823524" |
| + "2054367976655738752756266147542536910268553" |
| + "7448833810249238249431673425245843356607647" |
| + "4372260685985882252621076435844355190011754" |
| + "0656637395317040751098009821385816878380790" |
| + "9017022563392158510700243843871343995665725" |
| + "9447"); |
| q = new BigInteger("7006097449483280289139842436346899" |
| + "9530483972793167261845287040200424598484519" |
| + "0516644904497480849788319004016685820778949" |
| + "8514891188272714344395538114013074460410497" |
| + "8359325044727263936454825245761418873141623" |
| + "2797767712619624879346520836103128457266811" |
| + "0175147598232556414901292143389437071453369" |
| + "4867355570712858957689566849950544938172174" |
| + "9136345403774445991224311311204082279382451" |
| + "1977673518543939329498617563049052032259503" |
| + "1057378839061411322975567618416093845144604" |
| + "4563500271329350225709899627798126176885843" |
| + "9953695524756659384424971651654225913916902" |
| + "7087953078966988666226779422822854729725410" |
| + "1118666318953891716194309185187152294057704" |
| + "2509582485250984938518224243061447485603856" |
| + "0197517312286511585545481984194518805766300" |
| + "7351141154720653351520788558277866920369211" |
| + "9269193267018615410395030712426882576851775" |
| + "9240726416572698143674385203349496226355950" |
| + "0327319442530888807531774734409411628435155" |
| + "6449625936156829175453919098709371623972260" |
| + "4090598351878256110255744263233419699486705" |
| + "3658219936031243191809689036438631617494147" |
| + "8183898954195399872571907981872765548994005" |
| + "0754996819683869837696561316479950526914796" |
| + "3613549619563212818369365543951734053135086" |
| + "8593"); |
| break; |
| case 7681: |
| p = new BigInteger("1051422012172516922972337796421710" |
| + "1479918158427421377774284533124281583092508" |
| + "4961153980854679659383249048667658521370629" |
| + "6404078819943386006431233653506112030196761" |
| + "7596078830067404622117784094070983115834842" |
| + "0487926993058767148294211654032287322495894" |
| + "1733666341539644761909820700670130074920230" |
| + "0423405253327351685101039824822997870642295" |
| + "8176417666723292317903368285439828460328413" |
| + "9578515412811253729224087502906626189200448" |
| + "4062549581079444644685394008569377879899377" |
| + "0578136407363616816108795867392262638913436" |
| + "2041457188733948013731661456602199370852579" |
| + "2394583215214266552642082043674873685065171" |
| + "9053703728689139119006448644148961706358756" |
| + "0498696516029596534138345596800696824976461" |
| + "8461070371773003241093580622731426623849732" |
| + "8737707046931934781383331589291927520571138" |
| + "2759511573966362005294438252298268405782746" |
| + "9642105075721912120520774388679358659061825" |
| + "8867415333830751976884165265610029632416351" |
| + "6666642762305875140340531095190000199307531" |
| + "2186952558457690950270489966695323839026041" |
| + "0797018634946454573060304991245539422899112" |
| + "9312288231966690989900334936215870198735213" |
| + "6745631923445509394027128331099748294658904" |
| + "6303809606943116678969915369410846798143779" |
| + "89187"); |
| q = new BigInteger("8160183444544784072886152354850963" |
| + "2507221530634202707531181684048014518183560" |
| + "4586261698204521358487995639975786964316103" |
| + "5861955444259138806900123878887948650444640" |
| + "7062365744302695074634248387572850855758081" |
| + "9074631976865727985289995811413472254074432" |
| + "4751574514329862821405069035713821908598155" |
| + "5436571566703295992717666421591959121774983" |
| + "5913798632992394695663301960139778059658979" |
| + "4944466598070019481108421780314115410201334" |
| + "2925668957166258484312039121420100795544341" |
| + "5372918969907063685116069321551182817324799" |
| + "3347159610063964281388144113123539915925090" |
| + "2692309096312451442405059120315891913678403" |
| + "4977738880336169371406947347468157606390086" |
| + "3381587148478097717352225924672548657441771" |
| + "3887371520215341151934095945869956390140929" |
| + "3098286281540595154062683214111934217839063" |
| + "3309526631019699109621050440794920159910038" |
| + "3248965999877529393614116991972153758910967" |
| + "1712258745878268303349611893651932564447696" |
| + "9601760120187828039923387985032881949408596" |
| + "0689784023540256749586591441103043888423326" |
| + "3078541569639917739590630101701573133092711" |
| + "6157430583592378472242178997833136144409256" |
| + "3558220277370179546822023437190315852529873" |
| + "0831890147323301322699740037060134979740963" |
| + "4289"); |
| break; |
| case 8192: |
| p = new BigInteger("9821669838446774374944535804569858" |
| + "0553278885576950130485823829973470553571905" |
| + "3014418421996241500307589880457361653957913" |
| + "9176499436767288125182942994089196450118944" |
| + "8701794862752733776161684616570463744619126" |
| + "4981622564763630694110472008409561205704867" |
| + "0221819623405201369630462487520858670679048" |
| + "5854008441429858453634949980424333056803703" |
| + "1205609490778445762604050796894221725977551" |
| + "1428887194691696420765173256600200430067305" |
| + "4364524177041858044598166859757042904625691" |
| + "4292728453597609683799189454690202563236931" |
| + "8171122071288244573793276051041975005528757" |
| + "0228306442708182141334279133965507583927772" |
| + "9244311696220253059281524393613278272067808" |
| + "7017494446447670799055720358621918361716353" |
| + "5018317015764698318012095108914870478138809" |
| + "8204738169777192718869484177321870413838036" |
| + "8149216482968887382371881239714335470844573" |
| + "1862934371951394070111726593305334971041399" |
| + "5517260339034138718517336990212463882142363" |
| + "9154412320743552301967162100734381046548816" |
| + "3883737645359595416600487444018399886391071" |
| + "3777667222706059170707223589163679915863781" |
| + "4662302526078720977228426750718207481384357" |
| + "7918717041190413457052439016978578217755022" |
| + "7370720979516554707297685239584071755267452" |
| + "6021894842754355160100506065457679069228273" |
| + "95209345267367982516553449135291473361"); |
| q = new BigInteger("7902448465953646210110784092684896" |
| + "0265474424590294110174550047938700740921014" |
| + "1981650823416127449143596912363210790070524" |
| + "2903784112701128957948996730263815210531364" |
| + "0489145287401377007608600217628773627723381" |
| + "1194123533939872283952535576847014977682278" |
| + "9332064706645169741712060131540562788886577" |
| + "3762235020990267901959745687867018811088495" |
| + "3716021011509120447248882358515954471433808" |
| + "2782236662758287959413069553620728137831579" |
| + "2321174813204514354999978428741310035945405" |
| + "0226661395731921098764192439072425262100813" |
| + "9732949866553839713092238096261034339815187" |
| + "2832617055364163276140160068136296115910569" |
| + "9466440903693740716929166334256441926903849" |
| + "1082968246155177124035336609654226388424434" |
| + "5775783323612758615407928446164631651292743" |
| + "8428509642959278732826297890909454571009075" |
| + "7836191622138731918099379467912681177757761" |
| + "6141378131042432093843778753846726589215845" |
| + "7402160146427434508515156204064224022904659" |
| + "8645441448874409852211668374267341177082462" |
| + "7341410218867175406105046487057429530801973" |
| + "0931082058719258230993681115780999537424968" |
| + "2385515792331573549935317407789344892257264" |
| + "7464569110078675090194686816764429827739815" |
| + "0566036514181547634372488184242167294602000" |
| + "8232780963578241583529875079397308150506597" |
| + "37190564909892937290776929541076192569"); |
| break; |
| default: |
| throw new AssertionError("Unknown keySize " + keySize); |
| } |
| |
| n = p.multiply(q); |
| |
| // phi = (p - 1) * (q - 1) must be relative prime to e |
| // otherwise RSA just won't work ;-) |
| BigInteger p1 = p.subtract(BigInteger.ONE); |
| BigInteger q1 = q.subtract(BigInteger.ONE); |
| BigInteger phi = p1.multiply(q1); |
| // generate new p and q until they work. typically |
| // the first try will succeed when using F4 |
| if (e.gcd(phi).equals(BigInteger.ONE) == false) { |
| throw new AssertionError("Should not happen"); |
| } |
| |
| // private exponent d is the inverse of e mod phi |
| BigInteger d = e.modInverse(phi); |
| |
| // 1st prime exponent pe = d mod (p - 1) |
| BigInteger pe = d.mod(p1); |
| // 2nd prime exponent qe = d mod (q - 1) |
| BigInteger qe = d.mod(q1); |
| |
| // crt coefficient coeff is the inverse of q mod p |
| BigInteger coeff = q.modInverse(p); |
| |
| try { |
| PublicKey publicKey = new RSAPublicKeyImpl(rsaId, n, e); |
| PrivateKey privateKey = new RSAPrivateCrtKeyImpl( |
| rsaId, n, e, d, p, q, pe, qe, coeff); |
| return new KeyPair(publicKey, privateKey); |
| } catch (InvalidKeyException exc) { |
| // invalid key exception only thrown for keys < 512 bit, |
| // will not happen here |
| throw new RuntimeException(exc); |
| } |
| } |
| } |
