jdk/test/sun/security/provider/SecureRandom/DRBGAlg.java
changeset 37796 256c45c4af5d
child 37896 cd841af7dcd0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/security/provider/SecureRandom/DRBGAlg.java	Fri May 06 11:38:44 2016 +0800
@@ -0,0 +1,180 @@
+/*
+ * Copyright (c) 2016, 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 sun.security.provider.MoreDrbgParameters;
+
+import java.security.DrbgParameters;
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+import java.security.SecureRandomParameters;
+import java.security.Security;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import static java.security.DrbgParameters.Capability.*;
+
+/**
+ * @test
+ * @bug 8051408
+ * @modules java.base/sun.security.provider
+ * @summary make sure DRBG alg can be defined and instantiated freely
+ */
+public class DRBGAlg {
+
+    public static void main(String[] args) throws Exception {
+
+        check(null, "Hash_DRBG", "SHA-256", "reseed_only", ",128");
+        check("", "Hash_DRBG", "SHA-256", "reseed_only", ",128");
+        check("sha-1", "Hash_DRBG", "SHA-1", "reseed_only", ",128");
+        check("sha-256", "Hash_DRBG", "SHA-256", "reseed_only", ",128");
+        check("SHA-3");
+        check("hash_drbg", "Hash_DRBG", "SHA-256", "reseed_only", ",128");
+        check("hmac_drbg", "HMAC_DRBG", "SHA-256", "reseed_only", ",128");
+        check("ctr_drbg", "CTR_DRBG", "AES-", "reseed_only", ",128", "use_df");
+
+        // trying all permutations
+        checkPermutations(
+                Collections.emptyList(),
+                Arrays.asList("hash_drbg","sha-512","Pr_and_Reseed","192"),
+                "Hash_DRBG", "SHA-512", "pr_and_reseed", ",192");
+
+        check("Hash_DRBG,Hmac_DRBG");
+        check("SHA-1,SHA-256");
+        check("128,256");
+        check("none,reseed_only");
+        check("use_df,no_df");
+        check("Hash_DRBG,,SHA-1");
+
+        check(null, DrbgParameters.instantiation(112, PR_AND_RESEED, null),
+                "Hash_DRBG", "SHA-256", "pr_and_reseed", ",112");
+        check(null, DrbgParameters.instantiation(256, PR_AND_RESEED, null),
+                "Hash_DRBG", "SHA-256", "pr_and_reseed", ",256");
+        check(null, DrbgParameters.instantiation(384, PR_AND_RESEED, null));
+        check("sha-1", DrbgParameters.instantiation(112, PR_AND_RESEED, null),
+                "Hash_DRBG", "SHA-1", "pr_and_reseed", ",112");
+        check("sha-1", DrbgParameters.instantiation(192, PR_AND_RESEED, null));
+        check("hash_drbg,sha-512,Pr_and_Reseed,192",
+                DrbgParameters.instantiation(112, NONE, null),
+                "Hash_DRBG", "SHA-512", "reseed_only", ",112");
+        check("hash_drbg,sha-512,Pr_and_Reseed,192",
+                DrbgParameters.instantiation(-1, NONE, null),
+                "Hash_DRBG", "SHA-512", "reseed_only", ",192");
+        // getInstance params can be stronger than definition
+        check("hash_drbg,sha-256,None,112",
+                DrbgParameters.instantiation(192, PR_AND_RESEED, null),
+                "Hash_DRBG", "SHA-256", "pr_and_reseed", ",192");
+
+        check("hash_drbg,sha-1", new MoreDrbgParameters(
+                    null, null, "sha-512", null, false,
+                    DrbgParameters.instantiation(-1, NONE, null)),
+                "Hash_DRBG", "SHA-512");
+        check("hash_drbg,sha-1", new MoreDrbgParameters(
+                    null, null, null, null, false,
+                    DrbgParameters.instantiation(-1, NONE, null)),
+                "Hash_DRBG", "SHA-1");
+        check("hash_drbg", new MoreDrbgParameters(
+                    null, "hmac_drbg", null, null, false,
+                    DrbgParameters.instantiation(-1, NONE, null)),
+                "HMAC_DRBG", "SHA-256");
+
+        check("hash_drbg,sha-1", new MoreDrbgParameters(
+                    null, null, "sha-3", null, false,
+                    DrbgParameters.instantiation(-1, NONE, null)));
+        check("hash_drbg,sha-1", new MoreDrbgParameters(
+                    null, "Unknown_DRBG", null, null, false,
+                    DrbgParameters.instantiation(-1, NONE, null)));
+    }
+
+    /**
+     * Checks all permutatins of a config. This is a recursive method and
+     * should be called with checkPermutations(empty,config,expected).
+     *
+     * @param current the current chosen aspects
+     * @param remains the remaining
+     * @param expected the expected effective config
+     * @throws Exception when check fails
+     */
+    private static void checkPermutations(List<String> current,
+            List<String> remains, String... expected) throws Exception {
+        if (remains.isEmpty()) {
+            check(current.stream().collect(Collectors.joining(",")), expected);
+        } else {
+            for (String r : remains) {
+                List<String> newCurrent = new ArrayList<>(current);
+                newCurrent.add(r);
+                List<String> newRemains = new ArrayList<>(remains);
+                newRemains.remove(r);
+                checkPermutations(newCurrent, newRemains, expected);
+            }
+        }
+    }
+
+    /**
+     * Checks DRBG definition for getInstance(alg, params).
+     *
+     * @param define DRBG
+     * @param params getInstance request (null if none)
+     * @param expected expected actual instantiate params, empty if should fail
+     */
+    static void check(String define, SecureRandomParameters params,
+                      String... expected) throws Exception {
+        System.out.println("Testing " + define + " with " + params + "...");
+        String old = Security.getProperty("securerandom.drbg.config");
+        if (define != null) {
+            Security.setProperty("securerandom.drbg.config", define);
+        }
+        try {
+            String result = params != null ?
+                    SecureRandom.getInstance("DRBG", params).toString() :
+                    SecureRandom.getInstance("DRBG").toString();
+            System.out.println("Result " + result);
+            if (expected.length == 0) {
+                throw new Exception("should fail");
+            }
+            for (String s : expected) {
+                if (!result.contains(s)) {
+                    throw new Exception(result);
+                }
+            }
+        } catch (NoSuchAlgorithmException e) {
+            System.out.println("Result NSAE");
+            if (expected.length > 0) {
+                throw e;
+            }
+        } finally {
+            Security.setProperty("securerandom.drbg.config", old);
+        }
+    }
+
+    /**
+     * Checks DRBG definition for getInstance(alg).
+     *
+     * @param define DRBG
+     * @param expected expected actual instantiate params, empty if should fail
+     */
+    static void check(String define, String... expected) throws Exception {
+        check(define, null, expected);
+    }
+}