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A new policy constraint to enforce p12 password quality.
The new *p12ExportPasswordConstraintImpl* constraint allows to check: * `password.minSize` - the minimum size for the password; * `password.minCharCategory` - a csv of minimum characters in each category, they are _capital_, _lower_, _digit_ and _punctuation_; * `password.substringMatch` - the size of substring sequence which cannot be repeated; * `password.maxRepeatedChar` - maximum number of repeating for each character; * `password.cracklibCheck` - a boolean to request an additional check with *cracklib* (it has to be installed if not present).
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base/ca/src/main/java/com/netscape/cms/profile/constraint/P12ExportPasswordConstraint.java
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| // --- BEGIN COPYRIGHT BLOCK --- | ||
| // This program is free software; you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation; version 2 of the License. | ||
| // | ||
| // This program 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 for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License along | ||
| // with this program; if not, write to the Free Software Foundation, Inc., | ||
| // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| // | ||
| // (C) 2007 Red Hat, Inc. | ||
| // All rights reserved. | ||
| // --- END COPYRIGHT BLOCK --- | ||
| package com.netscape.cms.profile.constraint; | ||
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| import java.io.BufferedReader; | ||
| import java.io.BufferedWriter; | ||
| import java.io.IOException; | ||
| import java.util.Locale; | ||
| import java.util.Map; | ||
| import java.util.regex.Matcher; | ||
| import java.util.regex.Pattern; | ||
| import java.util.stream.Collectors; | ||
|
|
||
| import org.mozilla.jss.netscape.security.x509.X509CertInfo; | ||
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| import com.netscape.certsrv.profile.ERejectException; | ||
| import com.netscape.certsrv.property.EPropertyException; | ||
| import com.netscape.certsrv.property.IDescriptor; | ||
| import com.netscape.cms.profile.def.NoDefault; | ||
| import com.netscape.cms.profile.def.PolicyDefault; | ||
| import com.netscape.cmscore.apps.CMS; | ||
| import com.netscape.cmscore.request.Request; | ||
|
|
||
| /** | ||
| * This class supports renewal grace period, which has two | ||
| * parameters: graceBefore and graceAfter | ||
| * | ||
| * @author Christina Fu | ||
| * @version $Revision$, $Date$ | ||
| */ | ||
| public class P12ExportPasswordConstraint extends EnrollConstraint { | ||
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| public static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(P12ExportPasswordConstraint.class); | ||
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| public static final String CONFIG_PASSWORD_MIN_SIZE = "password.minSize"; | ||
| public static final String CONFIG_PASSWORD_MIN_CHAR_CATEGORY = "password.minCharCategory"; | ||
| public static final String CONFIG_PASSWORD_SUBSTRING_MATCH = "password.substringMatch"; | ||
| public static final String CONFIG_PASSWORD_MAX_REPEATED_CHAR = "password.maxRepeatedChar"; | ||
| public static final String CONFIG_PASSWORD_CRACKLIB_CHECK = "password.cracklibCheck"; | ||
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| public P12ExportPasswordConstraint() { | ||
| super(); | ||
| addConfigName(CONFIG_PASSWORD_MIN_SIZE); | ||
| } | ||
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| @Override | ||
| public void setConfig(String name, String value) | ||
| throws EPropertyException { | ||
| if (name.equals(CONFIG_PASSWORD_MIN_SIZE) || | ||
| name.equals(CONFIG_PASSWORD_SUBSTRING_MATCH) || | ||
| name.equals(CONFIG_PASSWORD_MAX_REPEATED_CHAR)) { | ||
| try { | ||
| Integer.parseInt(value); | ||
| } catch (Exception e) { | ||
| throw new EPropertyException(CMS.getUserMessage( | ||
| "CMS_INVALID_PROPERTY", name)); | ||
| } | ||
| } | ||
| super.setConfig(name, value); | ||
| } | ||
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| @Override | ||
| public IDescriptor getConfigDescriptor(Locale locale, String name) { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public void validate(Request req, X509CertInfo info) | ||
| throws ERejectException { | ||
| String method = "P12ExportPasswordConstraint: validate: "; | ||
| String password = req.getExtDataInString("serverSideKeygenP12Passwd"); | ||
| String param = getConfig(CONFIG_PASSWORD_MIN_SIZE); | ||
| if (!param.equals("") && password.length() < Integer.parseInt(param)) { | ||
| throw new ERejectException(CMS.getUserMessage(getLocale(req), | ||
| "CMS_PROFILE_P12EXPORT_PASSWORD_TOO_SHORT", param)); | ||
| } | ||
|
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| param = getConfig(CONFIG_PASSWORD_MIN_CHAR_CATEGORY); | ||
| if (!param.equals("")) { | ||
| String[] catCharSize = param.split(","); | ||
| Pattern pattern = Pattern.compile("^\\p{Upper}*(.*?)\\d*$"); | ||
| Matcher matcher = pattern.matcher(password); | ||
| int[] catChars = {0, 0, 0, 0}; | ||
| if (matcher.find()) { | ||
| String passwordSubset = matcher.group(1); | ||
| catChars[0] = passwordSubset.split("(?<=\\p{Upper})", -6).length -1; | ||
| catChars[1] = passwordSubset.split("(?<=\\p{Lower})", -6).length -1; | ||
| catChars[2] = passwordSubset.split("(?<=\\d)", -6).length -1; | ||
| catChars[3] = passwordSubset.split("(?<=\\p{Punct})", -6).length -1; | ||
| } | ||
| for (int i = 0; i < 4; i++) { | ||
| if (catChars[i] < Integer.parseInt(catCharSize[i])) { | ||
| throw new ERejectException(CMS.getUserMessage(getLocale(req), | ||
| "CMS_PROFILE_P12EXPORT_PASSWORD_FEW_CHARS_CATEGORY", catCharSize)); | ||
| } | ||
| } | ||
| } | ||
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| param = getConfig(CONFIG_PASSWORD_SUBSTRING_MATCH); | ||
| if (!param.equals("")) { | ||
| int seqSize = Integer.parseInt(param); | ||
| for (int i = 0; i< password.length() - (seqSize * 2); i++) { | ||
| String seq = password.substring(i, i + seqSize); | ||
| String invSeq = new StringBuilder(seq).reverse().toString(); | ||
| if(password.indexOf(seq, i + seqSize) > 0 || password.indexOf(invSeq, i + seqSize) > 0){ | ||
| throw new ERejectException(CMS.getUserMessage(getLocale(req), | ||
| "CMS_PROFILE_P12EXPORT_PASSWORD_SEQUENCE")); | ||
| } | ||
| } | ||
| } | ||
|
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| param = getConfig(CONFIG_PASSWORD_MAX_REPEATED_CHAR); | ||
| if (!param.equals("")) { | ||
| int maxRepeat = Integer.parseInt(param); | ||
| int mostRepeatedChar = password.chars().mapToObj(x -> (char) x) | ||
| .collect(Collectors.groupingBy(x -> x, Collectors.counting())) | ||
| .entrySet().stream().max(Map.Entry.comparingByValue()) | ||
| .get().getValue().intValue(); | ||
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| if (maxRepeat < mostRepeatedChar) { | ||
| throw new ERejectException(CMS.getUserMessage(getLocale(req), | ||
| "CMS_PROFILE_P12EXPORT_PASSWORD_REPEATED_CHAR", param)); | ||
| } | ||
| } | ||
|
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| if (getConfigBoolean(CONFIG_PASSWORD_CRACKLIB_CHECK)) { | ||
| try { | ||
| Process crack = new ProcessBuilder("/usr/sbin/cracklib-check").start(); | ||
| BufferedWriter crackIn = crack.outputWriter(); | ||
| BufferedReader crackOut = crack.inputReader(); | ||
| crackIn.write(password); | ||
| crackIn.close(); | ||
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| String crackResult = crackOut.readLine().substring(password.length() + 2); | ||
| if (!crackResult.equals("OK")) { | ||
| throw new ERejectException(CMS.getUserMessage(getLocale(req), | ||
| "CMS_PROFILE_P12EXPORT_PASSWORD_CRACKLIB_FAILS", crackResult)); | ||
| } | ||
|
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| } catch (IOException e) { | ||
| logger.error(method + "impossible check password with cracklib.", e); | ||
| } | ||
|
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| } | ||
| } | ||
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| @Override | ||
| public String getText(Locale locale) { | ||
| String[] params = { | ||
| getConfig(CONFIG_PASSWORD_MIN_SIZE, "-1"), | ||
| getConfig(CONFIG_PASSWORD_MIN_CHAR_CATEGORY, "-1"), | ||
| getConfig(CONFIG_PASSWORD_SUBSTRING_MATCH, "-1"), | ||
| getConfig(CONFIG_PASSWORD_MAX_REPEATED_CHAR, "-1"), | ||
| getConfig(CONFIG_PASSWORD_CRACKLIB_CHECK, "False") | ||
| }; | ||
| return CMS.getUserMessage(locale, "CMS_PROFILE_CONSTRAINT_P12EXPORT_PASSWORD_TEXT", params); | ||
| } | ||
|
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||
| @Override | ||
| public boolean isApplicable(PolicyDefault def) { | ||
| return (def instanceof NoDefault); | ||
| } | ||
| } |
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