| /* |
| * Copyright (c) 2017, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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.ssl; |
| |
| import java.security.*; |
| import java.math.BigInteger; |
| import java.util.regex.Pattern; |
| import java.util.regex.Matcher; |
| import java.util.Map; |
| import java.util.HashMap; |
| import java.util.Collections; |
| import javax.crypto.spec.DHParameterSpec; |
| |
| /** |
| * Predefined default DH ephemeral parameters. |
| */ |
| final class PredefinedDHParameterSpecs { |
| private final static boolean debugIsOn = |
| (Debug.getInstance("ssl") != null) && Debug.isOn("sslctx"); |
| |
| // |
| // Default DH ephemeral parameters |
| // |
| private static final BigInteger p512 = new BigInteger( // generated |
| "D87780E15FF50B4ABBE89870188B049406B5BEA98AB23A02" + |
| "41D88EA75B7755E669C08093D3F0CA7FC3A5A25CF067DCB9" + |
| "A43DD89D1D90921C6328884461E0B6D3", 16); |
| private static final BigInteger p768 = new BigInteger( // RFC 2409 |
| "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" + |
| "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" + |
| "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" + |
| "E485B576625E7EC6F44C42E9A63A3620FFFFFFFFFFFFFFFF", 16); |
| |
| private static final BigInteger p1024 = new BigInteger( // RFC 2409 |
| "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" + |
| "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" + |
| "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" + |
| "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" + |
| "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381" + |
| "FFFFFFFFFFFFFFFF", 16); |
| private static final BigInteger p1536 = new BigInteger( // RFC 3526 |
| "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" + |
| "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" + |
| "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" + |
| "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" + |
| "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" + |
| "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" + |
| "83655D23DCA3AD961C62F356208552BB9ED529077096966D" + |
| "670C354E4ABC9804F1746C08CA237327FFFFFFFFFFFFFFFF", 16); |
| private static final BigInteger p2048 = new BigInteger( // TLS FFDHE |
| "FFFFFFFFFFFFFFFFADF85458A2BB4A9AAFDC5620273D3CF1" + |
| "D8B9C583CE2D3695A9E13641146433FBCC939DCE249B3EF9" + |
| "7D2FE363630C75D8F681B202AEC4617AD3DF1ED5D5FD6561" + |
| "2433F51F5F066ED0856365553DED1AF3B557135E7F57C935" + |
| "984F0C70E0E68B77E2A689DAF3EFE8721DF158A136ADE735" + |
| "30ACCA4F483A797ABC0AB182B324FB61D108A94BB2C8E3FB" + |
| "B96ADAB760D7F4681D4F42A3DE394DF4AE56EDE76372BB19" + |
| "0B07A7C8EE0A6D709E02FCE1CDF7E2ECC03404CD28342F61" + |
| "9172FE9CE98583FF8E4F1232EEF28183C3FE3B1B4C6FAD73" + |
| "3BB5FCBC2EC22005C58EF1837D1683B2C6F34A26C1B2EFFA" + |
| "886B423861285C97FFFFFFFFFFFFFFFF", 16); |
| private static final BigInteger p3072 = new BigInteger( // TLS FFDHE |
| "FFFFFFFFFFFFFFFFADF85458A2BB4A9AAFDC5620273D3CF1" + |
| "D8B9C583CE2D3695A9E13641146433FBCC939DCE249B3EF9" + |
| "7D2FE363630C75D8F681B202AEC4617AD3DF1ED5D5FD6561" + |
| "2433F51F5F066ED0856365553DED1AF3B557135E7F57C935" + |
| "984F0C70E0E68B77E2A689DAF3EFE8721DF158A136ADE735" + |
| "30ACCA4F483A797ABC0AB182B324FB61D108A94BB2C8E3FB" + |
| "B96ADAB760D7F4681D4F42A3DE394DF4AE56EDE76372BB19" + |
| "0B07A7C8EE0A6D709E02FCE1CDF7E2ECC03404CD28342F61" + |
| "9172FE9CE98583FF8E4F1232EEF28183C3FE3B1B4C6FAD73" + |
| "3BB5FCBC2EC22005C58EF1837D1683B2C6F34A26C1B2EFFA" + |
| "886B4238611FCFDCDE355B3B6519035BBC34F4DEF99C0238" + |
| "61B46FC9D6E6C9077AD91D2691F7F7EE598CB0FAC186D91C" + |
| "AEFE130985139270B4130C93BC437944F4FD4452E2D74DD3" + |
| "64F2E21E71F54BFF5CAE82AB9C9DF69EE86D2BC522363A0D" + |
| "ABC521979B0DEADA1DBF9A42D5C4484E0ABCD06BFA53DDEF" + |
| "3C1B20EE3FD59D7C25E41D2B66C62E37FFFFFFFFFFFFFFFF", 16); |
| private static final BigInteger p4096 = new BigInteger( // TLS FFDHE |
| "FFFFFFFFFFFFFFFFADF85458A2BB4A9AAFDC5620273D3CF1" + |
| "D8B9C583CE2D3695A9E13641146433FBCC939DCE249B3EF9" + |
| "7D2FE363630C75D8F681B202AEC4617AD3DF1ED5D5FD6561" + |
| "2433F51F5F066ED0856365553DED1AF3B557135E7F57C935" + |
| "984F0C70E0E68B77E2A689DAF3EFE8721DF158A136ADE735" + |
| "30ACCA4F483A797ABC0AB182B324FB61D108A94BB2C8E3FB" + |
| "B96ADAB760D7F4681D4F42A3DE394DF4AE56EDE76372BB19" + |
| "0B07A7C8EE0A6D709E02FCE1CDF7E2ECC03404CD28342F61" + |
| "9172FE9CE98583FF8E4F1232EEF28183C3FE3B1B4C6FAD73" + |
| "3BB5FCBC2EC22005C58EF1837D1683B2C6F34A26C1B2EFFA" + |
| "886B4238611FCFDCDE355B3B6519035BBC34F4DEF99C0238" + |
| "61B46FC9D6E6C9077AD91D2691F7F7EE598CB0FAC186D91C" + |
| "AEFE130985139270B4130C93BC437944F4FD4452E2D74DD3" + |
| "64F2E21E71F54BFF5CAE82AB9C9DF69EE86D2BC522363A0D" + |
| "ABC521979B0DEADA1DBF9A42D5C4484E0ABCD06BFA53DDEF" + |
| "3C1B20EE3FD59D7C25E41D2B669E1EF16E6F52C3164DF4FB" + |
| "7930E9E4E58857B6AC7D5F42D69F6D187763CF1D55034004" + |
| "87F55BA57E31CC7A7135C886EFB4318AED6A1E012D9E6832" + |
| "A907600A918130C46DC778F971AD0038092999A333CB8B7A" + |
| "1A1DB93D7140003C2A4ECEA9F98D0ACC0A8291CDCEC97DCF" + |
| "8EC9B55A7F88A46B4DB5A851F44182E1C68A007E5E655F6A" + |
| "FFFFFFFFFFFFFFFF", 16); |
| private static final BigInteger p6144 = new BigInteger( // TLS FFDHE |
| "FFFFFFFFFFFFFFFFADF85458A2BB4A9AAFDC5620273D3CF1" + |
| "D8B9C583CE2D3695A9E13641146433FBCC939DCE249B3EF9" + |
| "7D2FE363630C75D8F681B202AEC4617AD3DF1ED5D5FD6561" + |
| "2433F51F5F066ED0856365553DED1AF3B557135E7F57C935" + |
| "984F0C70E0E68B77E2A689DAF3EFE8721DF158A136ADE735" + |
| "30ACCA4F483A797ABC0AB182B324FB61D108A94BB2C8E3FB" + |
| "B96ADAB760D7F4681D4F42A3DE394DF4AE56EDE76372BB19" + |
| "0B07A7C8EE0A6D709E02FCE1CDF7E2ECC03404CD28342F61" + |
| "9172FE9CE98583FF8E4F1232EEF28183C3FE3B1B4C6FAD73" + |
| "3BB5FCBC2EC22005C58EF1837D1683B2C6F34A26C1B2EFFA" + |
| "886B4238611FCFDCDE355B3B6519035BBC34F4DEF99C0238" + |
| "61B46FC9D6E6C9077AD91D2691F7F7EE598CB0FAC186D91C" + |
| "AEFE130985139270B4130C93BC437944F4FD4452E2D74DD3" + |
| "64F2E21E71F54BFF5CAE82AB9C9DF69EE86D2BC522363A0D" + |
| "ABC521979B0DEADA1DBF9A42D5C4484E0ABCD06BFA53DDEF" + |
| "3C1B20EE3FD59D7C25E41D2B669E1EF16E6F52C3164DF4FB" + |
| "7930E9E4E58857B6AC7D5F42D69F6D187763CF1D55034004" + |
| "87F55BA57E31CC7A7135C886EFB4318AED6A1E012D9E6832" + |
| "A907600A918130C46DC778F971AD0038092999A333CB8B7A" + |
| "1A1DB93D7140003C2A4ECEA9F98D0ACC0A8291CDCEC97DCF" + |
| "8EC9B55A7F88A46B4DB5A851F44182E1C68A007E5E0DD902" + |
| "0BFD64B645036C7A4E677D2C38532A3A23BA4442CAF53EA6" + |
| "3BB454329B7624C8917BDD64B1C0FD4CB38E8C334C701C3A" + |
| "CDAD0657FCCFEC719B1F5C3E4E46041F388147FB4CFDB477" + |
| "A52471F7A9A96910B855322EDB6340D8A00EF092350511E3" + |
| "0ABEC1FFF9E3A26E7FB29F8C183023C3587E38DA0077D9B4" + |
| "763E4E4B94B2BBC194C6651E77CAF992EEAAC0232A281BF6" + |
| "B3A739C1226116820AE8DB5847A67CBEF9C9091B462D538C" + |
| "D72B03746AE77F5E62292C311562A846505DC82DB854338A" + |
| "E49F5235C95B91178CCF2DD5CACEF403EC9D1810C6272B04" + |
| "5B3B71F9DC6B80D63FDD4A8E9ADB1E6962A69526D43161C1" + |
| "A41D570D7938DAD4A40E329CD0E40E65FFFFFFFFFFFFFFFF", 16); |
| private static final BigInteger p8192 = new BigInteger( // TLS FFDHE |
| "FFFFFFFFFFFFFFFFADF85458A2BB4A9AAFDC5620273D3CF1" + |
| "D8B9C583CE2D3695A9E13641146433FBCC939DCE249B3EF9" + |
| "7D2FE363630C75D8F681B202AEC4617AD3DF1ED5D5FD6561" + |
| "2433F51F5F066ED0856365553DED1AF3B557135E7F57C935" + |
| "984F0C70E0E68B77E2A689DAF3EFE8721DF158A136ADE735" + |
| "30ACCA4F483A797ABC0AB182B324FB61D108A94BB2C8E3FB" + |
| "B96ADAB760D7F4681D4F42A3DE394DF4AE56EDE76372BB19" + |
| "0B07A7C8EE0A6D709E02FCE1CDF7E2ECC03404CD28342F61" + |
| "9172FE9CE98583FF8E4F1232EEF28183C3FE3B1B4C6FAD73" + |
| "3BB5FCBC2EC22005C58EF1837D1683B2C6F34A26C1B2EFFA" + |
| "886B4238611FCFDCDE355B3B6519035BBC34F4DEF99C0238" + |
| "61B46FC9D6E6C9077AD91D2691F7F7EE598CB0FAC186D91C" + |
| "AEFE130985139270B4130C93BC437944F4FD4452E2D74DD3" + |
| "64F2E21E71F54BFF5CAE82AB9C9DF69EE86D2BC522363A0D" + |
| "ABC521979B0DEADA1DBF9A42D5C4484E0ABCD06BFA53DDEF" + |
| "3C1B20EE3FD59D7C25E41D2B669E1EF16E6F52C3164DF4FB" + |
| "7930E9E4E58857B6AC7D5F42D69F6D187763CF1D55034004" + |
| "87F55BA57E31CC7A7135C886EFB4318AED6A1E012D9E6832" + |
| "A907600A918130C46DC778F971AD0038092999A333CB8B7A" + |
| "1A1DB93D7140003C2A4ECEA9F98D0ACC0A8291CDCEC97DCF" + |
| "8EC9B55A7F88A46B4DB5A851F44182E1C68A007E5E0DD902" + |
| "0BFD64B645036C7A4E677D2C38532A3A23BA4442CAF53EA6" + |
| "3BB454329B7624C8917BDD64B1C0FD4CB38E8C334C701C3A" + |
| "CDAD0657FCCFEC719B1F5C3E4E46041F388147FB4CFDB477" + |
| "A52471F7A9A96910B855322EDB6340D8A00EF092350511E3" + |
| "0ABEC1FFF9E3A26E7FB29F8C183023C3587E38DA0077D9B4" + |
| "763E4E4B94B2BBC194C6651E77CAF992EEAAC0232A281BF6" + |
| "B3A739C1226116820AE8DB5847A67CBEF9C9091B462D538C" + |
| "D72B03746AE77F5E62292C311562A846505DC82DB854338A" + |
| "E49F5235C95B91178CCF2DD5CACEF403EC9D1810C6272B04" + |
| "5B3B71F9DC6B80D63FDD4A8E9ADB1E6962A69526D43161C1" + |
| "A41D570D7938DAD4A40E329CCFF46AAA36AD004CF600C838" + |
| "1E425A31D951AE64FDB23FCEC9509D43687FEB69EDD1CC5E" + |
| "0B8CC3BDF64B10EF86B63142A3AB8829555B2F747C932665" + |
| "CB2C0F1CC01BD70229388839D2AF05E454504AC78B758282" + |
| "2846C0BA35C35F5C59160CC046FD8251541FC68C9C86B022" + |
| "BB7099876A460E7451A8A93109703FEE1C217E6C3826E52C" + |
| "51AA691E0E423CFC99E9E31650C1217B624816CDAD9A95F9" + |
| "D5B8019488D9C0A0A1FE3075A577E23183F81D4A3F2FA457" + |
| "1EFC8CE0BA8A4FE8B6855DFE72B0A66EDED2FBABFBE58A30" + |
| "FAFABE1C5D71A87E2F741EF8C1FE86FEA6BBFDE530677F0D" + |
| "97D11D49F7A8443D0822E506A9F4614E011E2A94838FF88C" + |
| "D68C8BB7C5C6424CFFFFFFFFFFFFFFFF", 16); |
| |
| private static final BigInteger[] supportedPrimes = { |
| p512, p768, p1024, p1536, p2048, p3072, p4096, p6144, p8192}; |
| |
| private static final BigInteger[] ffdhePrimes = { |
| p2048, p3072, p4096, p6144, p8192}; |
| |
| // a measure of the uncertainty that prime modulus p is not a prime |
| // |
| // see BigInteger.isProbablePrime(int certainty) |
| private final static int PRIME_CERTAINTY = 120; |
| |
| // the known security property, jdk.tls.server.defaultDHEParameters |
| private final static String PROPERTY_NAME = |
| "jdk.tls.server.defaultDHEParameters"; |
| |
| private static final Pattern spacesPattern = Pattern.compile("\\s+"); |
| |
| private final static Pattern syntaxPattern = Pattern.compile( |
| "(\\{[0-9A-Fa-f]+,[0-9A-Fa-f]+\\})" + |
| "(,\\{[0-9A-Fa-f]+,[0-9A-Fa-f]+\\})*"); |
| |
| private static final Pattern paramsPattern = Pattern.compile( |
| "\\{([0-9A-Fa-f]+),([0-9A-Fa-f]+)\\}"); |
| |
| // cache of predefined default DH ephemeral parameters |
| final static Map<Integer, DHParameterSpec> definedParams; |
| |
| // cache of Finite Field DH Ephemeral parameters (RFC 7919/FFDHE) |
| final static Map<Integer, DHParameterSpec> ffdheParams; |
| |
| static { |
| String property = AccessController.doPrivileged( |
| new PrivilegedAction<String>() { |
| public String run() { |
| return Security.getProperty(PROPERTY_NAME); |
| } |
| }); |
| |
| if (property != null && !property.isEmpty()) { |
| // remove double quote marks from beginning/end of the property |
| if (property.length() >= 2 && property.charAt(0) == '"' && |
| property.charAt(property.length() - 1) == '"') { |
| property = property.substring(1, property.length() - 1); |
| } |
| |
| property = property.trim(); |
| } |
| |
| if (property != null && !property.isEmpty()) { |
| Matcher spacesMatcher = spacesPattern.matcher(property); |
| property = spacesMatcher.replaceAll(""); |
| |
| if (debugIsOn) { |
| System.out.println("The Security Property " + |
| PROPERTY_NAME + ": " + property); |
| } |
| } |
| |
| Map<Integer,DHParameterSpec> defaultParams = new HashMap<>(); |
| if (property != null && !property.isEmpty()) { |
| Matcher syntaxMatcher = syntaxPattern.matcher(property); |
| if (syntaxMatcher.matches()) { |
| Matcher paramsFinder = paramsPattern.matcher(property); |
| while(paramsFinder.find()) { |
| String primeModulus = paramsFinder.group(1); |
| BigInteger p = new BigInteger(primeModulus, 16); |
| if (!p.isProbablePrime(PRIME_CERTAINTY)) { |
| if (debugIsOn) { |
| System.out.println( |
| "Prime modulus p in Security Property, " + |
| PROPERTY_NAME + ", is not a prime: " + |
| primeModulus); |
| } |
| |
| continue; |
| } |
| |
| String baseGenerator = paramsFinder.group(2); |
| BigInteger g = new BigInteger(baseGenerator, 16); |
| |
| DHParameterSpec spec = new DHParameterSpec(p, g); |
| int primeLen = p.bitLength(); |
| defaultParams.put(primeLen, spec); |
| } |
| } else if (debugIsOn) { |
| System.out.println("Invalid Security Property, " + |
| PROPERTY_NAME + ", definition"); |
| } |
| } |
| |
| Map<Integer,DHParameterSpec> tempFFDHEs = new HashMap<>(); |
| for (BigInteger p : ffdhePrimes) { |
| int primeLen = p.bitLength(); |
| DHParameterSpec dhps = new DHParameterSpec(p, BigInteger.TWO); |
| tempFFDHEs.put(primeLen, dhps); |
| defaultParams.putIfAbsent(primeLen, dhps); |
| } |
| |
| for (BigInteger p : supportedPrimes) { |
| int primeLen = p.bitLength(); |
| if (defaultParams.get(primeLen) == null) { |
| defaultParams.put(primeLen, |
| new DHParameterSpec(p, BigInteger.TWO)); |
| } |
| } |
| |
| ffdheParams = |
| Collections.<Integer,DHParameterSpec>unmodifiableMap(tempFFDHEs); |
| definedParams = |
| Collections.<Integer,DHParameterSpec>unmodifiableMap(defaultParams); |
| } |
| } |