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

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.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/java/security/MessageDigest/TestSameLength.java
+++ b/test/jdk/java/security/MessageDigest/TestSameLength.java
@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2015, 2020, 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.
+ */
+
+import static java.lang.System.out;
+import java.nio.ByteBuffer;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.security.Security;
+import jdk.test.lib.RandomFactory;
+
+/**
+ * @test
+ * @bug 8050371 8156059
+ * @summary Check md.getDigestLength() equal digest output length with various
+ *          algorithm/dataLen/(update,digest methods).
+ * @author Kevin Liu
+ * @key randomness
+ * @library /test/lib
+ * @build jdk.test.lib.RandomFactory
+ * @run main TestSameLength
+ */
+
+public class TestSameLength {
+
+    public static void main(String[] args) throws Exception {
+        TestSameLength test = new TestSameLength();
+        test.run();
+    }
+
+    private void run() throws Exception {
+        String[] algorithmArr = { "SHA", "Sha", "SHA-1", "sha-1", "SHA1",
+                "sha1", "MD5", "md5", "SHA-224", "SHA-256", "SHA-384",
+                "SHA-512", "SHA3-224", "SHA3-256", "SHA3-384", "SHA3-512" };
+        int[] nUpdatesArr = { 0, 1, 2, 3 };
+        int[] dataLenArr = { 1, 50, 2500, 125000, 6250000 };
+
+        for (String algorithm : algorithmArr) {
+            for (UpdateMethod update : UpdateMethod.values()) {
+                for (int dataLen : dataLenArr) {
+                    if (!runTest(algorithm, dataLen, update)) {
+                        throw new RuntimeException(
+                                "Test failed at algorithm/dataLen/numUpdate:"
+                                        + algorithm + "/" + dataLen + "/"
+                                        + update.toString());
+                    }
+                }
+            }
+        }
+
+        out.println("All "
+                + algorithmArr.length * nUpdatesArr.length * dataLenArr.length
+                + " tests Passed");
+    }
+
+    private boolean runTest(String algo, long dataLen, UpdateMethod whichUpdate)
+            throws Exception {
+        try {
+            // Do initialization
+            byte[] data = new byte[(int) dataLen];
+            RandomFactory.getRandom().nextBytes(data);
+            MessageDigest md = MessageDigest.getInstance(algo);
+            int outputLen = md.getDigestLength();
+
+            // Perform the update using all available/possible update methods
+            whichUpdate.updateDigest(data, md, dataLen);
+            // Get the output
+            byte[] output = md.digest();
+
+            // Compare input and output
+            return outputLen == output.length;
+        } catch (NoSuchAlgorithmException nae) {
+            throw nae;
+        } catch (Exception ex) {
+            System.err.println("Testing: " + algo + "/" + dataLen + "/"
+                    + whichUpdate.toString()
+                    + " failed with unexpected exception");
+            ex.printStackTrace();
+            throw ex;
+        }
+    }
+
+    private static enum UpdateMethod {
+        UPDATE_BYTE {
+            @Override
+            public void updateDigest(byte[] data, MessageDigest md,
+                    long dataLen) {
+
+                for (int i = 0; i < dataLen; i++) {
+                    md.update(data[i]);
+                }
+            }
+        },
+
+        UPDATE_BUFFER {
+            @Override
+            public void updateDigest(byte[] data, MessageDigest md,
+                    long dataLen) {
+
+                md.update(data);
+            }
+        },
+
+        UPDATE_BUFFER_LEN {
+            @Override
+            public void updateDigest(byte[] data, MessageDigest md,
+                    long dataLen) {
+
+                for (int i = 0; i < dataLen; i++) {
+                    md.update(data, i, 1);
+                }
+            }
+        },
+
+        UPDATE_BYTE_BUFFER {
+            @Override
+            public void updateDigest(byte[] data, MessageDigest md,
+                    long dataLen) {
+
+                md.update(ByteBuffer.wrap(data));
+            }
+        };
+
+        public abstract void updateDigest(byte[] data, MessageDigest md,
+                long dataLen);
+    }
+}