/*
* Copyright ( c ) 2018 , 2021 , 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 jdk.test.lib.security;
import java.io.File;
import java.security.KeyStore;
import java.security.Security;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
/**
* Common library for various security test helper functions .
*/
public final class SecurityUtils {
private static String getCacerts() {
String sep = File.separator;
return System.getProperty("java.home" ) + sep
+ "lib" + sep + "security" + sep + "cacerts" ;
}
/**
* Returns the cacerts keystore with the configured CA certificates .
*/
public static KeyStore getCacertsKeyStore() throws Exception {
File file = new File(getCacerts());
if (!file.exists()) {
return null ;
}
return KeyStore.getInstance(file, (char [])null );
}
/**
* Removes the specified protocols from the jdk . tls . disabledAlgorithms
* security property .
*/
public static void removeFromDisabledTlsAlgs(String... protocols) {
removeFromDisabledAlgs("jdk.tls.disabledAlgorithms" ,
List.<String>of(protocols));
}
/**
* Removes constraints that contain the specified constraint from the
* specified security property . For example , List . of ( " SHA1 " ) will remove
* any constraint containing " SHA1 " .
*/
public static void removeFromDisabledAlgs(String prop,
List<String> constraints) {
String value = Security.getProperty(prop);
value = Arrays.stream(value.split("," ))
.map(s -> s.trim())
.filter(s -> constraints.stream()
.allMatch(constraint -> !s.contains(constraint)))
.collect(Collectors.joining("," ));
Security.setProperty(prop, value);
}
/**
* Removes the specified algorithms from the
* jdk . xml . dsig . secureValidationPolicy security property . Matches any
* part of the algorithm URI .
*/
public static void removeAlgsFromDSigPolicy(String... algs) {
removeFromDSigPolicy("disallowAlg" , List.<String>of(algs));
}
private static void removeFromDSigPolicy(String rule, List<String> algs) {
String value = Security.getProperty("jdk.xml.dsig.secureValidationPolicy" );
value = Arrays.stream(value.split("," ))
.filter(v -> !v.contains(rule) ||
!anyMatch(v, algs))
.collect(Collectors.joining("," ));
Security.setProperty("jdk.xml.dsig.secureValidationPolicy" , value);
}
private static boolean anyMatch(String value, List<String> algs) {
for (String alg : algs) {
if (value.contains(alg)) {
return true ;
}
}
return false ;
}
private SecurityUtils() {}
}
Messung V0.5 in Prozent C=91 H=87 G=88
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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