spring-security-crypto: initial integration (#8578)

projects/spring-security/BCryptPasswordEncoderFuzzer.java

@@ -0,0 +1,49 @@
+// Copyright 2022 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import com.code_intelligence.jazzer.api.FuzzedDataProvider;
+import com.code_intelligence.jazzer.api.FuzzerSecurityIssueHigh;
+import org.springframework.security.crypto.bcrypt.BCrypt;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+
+public class BCryptPasswordEncoderFuzzer {
+    public static void fuzzerTestOneInput(FuzzedDataProvider data) {
+        BCryptPasswordEncoder.BCryptVersion bCryptVersion = data.pickValue(new BCryptPasswordEncoder.BCryptVersion[]
+                {BCryptPasswordEncoder.BCryptVersion.$2A, BCryptPasswordEncoder.BCryptVersion.$2B, BCryptPasswordEncoder.BCryptVersion.$2Y});
+
+        BCryptPasswordEncoder encoder;
+        try {
+            if (data.consumeBoolean()) {
+                encoder = new BCryptPasswordEncoder(bCryptVersion);
+            } else {
+                // using MAX_LOG_ROUNDS will slow down the fuzz test
+                encoder = new BCryptPasswordEncoder(bCryptVersion, data.consumeInt(-1, 10));
+            }
+        } catch (IllegalArgumentException ignored) {
+            return;
+        }
+
+        String password = data.consumeRemainingAsString();
+        if (password.isEmpty()) {
+            return;
+        }
+
+        String result = encoder.encode(password);
+        if (!encoder.matches(password, result)) {
+            throw new FuzzerSecurityIssueHigh("Password `" + password + "` does not match encoded one `" + result + "`");
+        }
+    }
+}