diff -r 4ebc2e2fb97c -r 71c04702a3d5 src/java.base/share/classes/sun/security/ssl/PredefinedDHParameterSpecs.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/java.base/share/classes/sun/security/ssl/PredefinedDHParameterSpecs.java Tue Sep 12 19:03:39 2017 +0200 @@ -0,0 +1,314 @@ +/* + * 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 definedParams; + + // cache of Finite Field DH Ephemeral parameters (RFC 7919/FFDHE) + final static Map ffdheParams; + + static { + String property = AccessController.doPrivileged( + new PrivilegedAction() { + 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 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 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.unmodifiableMap(tempFFDHEs); + definedParams = + Collections.unmodifiableMap(defaultParams); + } +}