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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
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test/jdk/javax/crypto/Cipher/TestEmptyModePadding.java Normal file
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/*
* Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2025 IBM Corporation. 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.
*/
/*
* @test
* @bug 8359388 8368984
* @summary test that the Cipher.getInstance() would reject improper
* transformations with empty mode and/or padding.
*/
import java.security.NoSuchAlgorithmException;
import java.security.Provider;
import java.security.Security;
import javax.crypto.Cipher;
public class TestEmptyModePadding {
public static void main(String[] args) throws Exception {
Provider provider = Security.getProvider(
System.getProperty("test.provider.name", "SunJCE"));
System.out.println("Testing against " + provider.getName());
String[] testTransformations = {
// transformations w/ only 1 component, i.e. algo
" ",
// transformations w/ only 2 components
"AES/",
"AES/ ",
"AES/CBC",
"PBEWithHmacSHA512/224AndAES_128/",
"PBEWithHmacSHA512/256AndAES_128/ ",
"PBEWithHmacSHA512/224AndAES_128/CBC",
// 3-component transformations w/ empty component(s)
"AES//",
"AES/ /",
"AES// ",
"AES/ / ",
"AES/CBC/", "AES/CBC/ ",
"AES//PKCS5Padding", "AES/ /NoPadding",
"PBEWithHmacSHA512/224AndAES_128//",
"PBEWithHmacSHA512/224AndAES_128/ /",
"PBEWithHmacSHA512/224AndAES_128// ",
"PBEWithHmacSHA512/224AndAES_128/ / ",
"PBEWithHmacSHA512/256AndAES_128/CBC/",
"PBEWithHmacSHA512/256AndAES_128/CBC/ ",
"PBEWithHmacSHA512/256AndAES_128//PKCS5Padding",
"PBEWithHmacSHA512/256AndAES_128/ /PKCS5Padding",
// 4 or more components transformations
"PBEWithHmacSHA512///PKCS5Padding",
"AES/GCM/NoPadding///",
};
for (String t : testTransformations) {
test(t, provider);
}
}
private static void test(String t, Provider p) throws Exception {
try {
Cipher c = Cipher.getInstance(t, p);
throw new RuntimeException("Should throw NSAE for \'" + t + "\'");
} catch (NoSuchAlgorithmException nsae) {
// transformation info is already in the NSAE message
System.out.println("Expected NSAE: " + nsae.getMessage());
}
}
}