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8181048: Refactor existing providers to refer to the same constants for default values for key length

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Reviewed-by: mullan, ahgross
This commit is contained in:
Valerie Peng 2017-07-13 20:41:59 +00:00
parent 7cf3c0ff14
commit b3f1165f7d
16 changed files with 378 additions and 136 deletions
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131
src/java.base/share/classes/sun/security/util/SecurityProviderConstants.java Normal file
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/*
* 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.util;
import java.util.regex.PatternSyntaxException;
import java.security.InvalidParameterException;
import sun.security.action.GetPropertyAction;
/**
* Various constants such as version number, default key length, used by
* the JDK security/crypto providers.
*/
public final class SecurityProviderConstants {
private static final Debug debug =
Debug.getInstance("jca", "ProviderConfig");
// Cannot create one of these
private SecurityProviderConstants () {
}
public static final int getDefDSASubprimeSize(int primeSize) {
if (primeSize <= 1024) {
return 160;
} else if (primeSize == 2048) {
return 224;
} else if (primeSize == 3072) {
return 256;
} else {
throw new InvalidParameterException("Invalid DSA Prime Size: " +
primeSize);
}
}
public static final int DEF_DSA_KEY_SIZE;
public static final int DEF_RSA_KEY_SIZE;
public static final int DEF_DH_KEY_SIZE;
public static final int DEF_EC_KEY_SIZE;
private static final String KEY_LENGTH_PROP =
"jdk.security.defaultKeySize";
static {
String keyLengthStr = GetPropertyAction.privilegedGetProperty
(KEY_LENGTH_PROP);
int dsaKeySize = 1024;
int rsaKeySize = 2048;
int dhKeySize = 2048;
int ecKeySize = 256;
if (keyLengthStr != null) {
try {
String[] pairs = keyLengthStr.split(",");
for (String p : pairs) {
String[] algoAndValue = p.split(":");
if (algoAndValue.length != 2) {
// invalid pair, skip to next pair
if (debug != null) {
debug.println("Ignoring invalid pair in " +
KEY_LENGTH_PROP + " property: " + p);
}
continue;
}
String algoName = algoAndValue[0].trim().toUpperCase();
int value = -1;
try {
value = Integer.parseInt(algoAndValue[1].trim());
} catch (NumberFormatException nfe) {
// invalid value, skip to next pair
if (debug != null) {
debug.println("Ignoring invalid value in " +
KEY_LENGTH_PROP + " property: " + p);
}
continue;
}
if (algoName.equals("DSA")) {
dsaKeySize = value;
} else if (algoName.equals("RSA")) {
rsaKeySize = value;
} else if (algoName.equals("DH")) {
dhKeySize = value;
} else if (algoName.equals("EC")) {
ecKeySize = value;
} else {
if (debug != null) {
debug.println("Ignoring unsupported algo in " +
KEY_LENGTH_PROP + " property: " + p);
}
continue;
}
if (debug != null) {
debug.println("Overriding default " + algoName +
" keysize with value from " +
KEY_LENGTH_PROP + " property: " + value);
}
}
} catch (PatternSyntaxException pse) {
// if property syntax is not followed correctly
if (debug != null) {
debug.println("Unexpected exception while parsing " +
KEY_LENGTH_PROP + " property: " + pse);
}
}
}
DEF_DSA_KEY_SIZE = dsaKeySize;
DEF_RSA_KEY_SIZE = rsaKeySize;
DEF_DH_KEY_SIZE = dhKeySize;
DEF_EC_KEY_SIZE = ecKeySize;
}
}