Fix #678: New hashing functions for crypto4

powerauth-java-crypto/src/main/java/io/getlime/security/powerauth/crypto/lib/v4/hash/Sha3.java

@@ -0,0 +1,59 @@
+/*
+ * PowerAuth Crypto Library
+ * Copyright 2024 Wultra s.r.o.
+ *
+ * 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.
+ */
+
+package io.getlime.security.powerauth.crypto.lib.v4.hash;
+
+import org.bouncycastle.jcajce.provider.digest.SHA3;
+
+/**
+ * Implementation of SHA-3 algorithms (Keccak).
+ *
+ * @author Roman Strobl, [email protected]
+ */
+public class Sha3 {
+
+    /**
+     * Hash the input data using SHA3-256.
+     *
+     * @param originalBytes Input bytes.
+     * @return Hashed bytes.
+     */
+    public static byte[] hash256(byte[] originalBytes) {
+        return digest256(originalBytes);
+    }
+
+    /**
+     * Hash the input data using SHA3-384.
+     *
+     * @param originalBytes Input bytes.
+     * @return Hashed bytes.
+     */
+    public static byte[] hash384(byte[] originalBytes) {
+        return digest384(originalBytes);
+    }
+
+    private static byte[] digest256(byte[] originalBytes) {
+        final SHA3.DigestSHA3 sha3_256 = new SHA3.Digest256();
+        return sha3_256.digest(originalBytes);
+    }
+
+    private static byte[] digest384(byte[] originalBytes) {
+        final SHA3.DigestSHA3 sha3_384 = new SHA3.Digest384();
+        return sha3_384.digest(originalBytes);
+    }
+
+}

powerauth-java-crypto/src/test/java/io/getlime/security/powerauth/crypto/lib/v4/hash/Sha3Test.java

@@ -0,0 +1,72 @@
+/*
+ * PowerAuth Crypto Library
+ * Copyright 2024 Wultra s.r.o.
+ *
+ * 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.
+ */
+
+package io.getlime.security.powerauth.crypto.lib.v4.hash;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.bouncycastle.util.encoders.Hex;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Stream;
+
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+
+class Sha3Test {
+
+    private static final ObjectMapper MAPPER = new ObjectMapper();
+
+    static Stream<Map<String, String>> jsonDataSha3_256Provider() throws IOException {
+        InputStream sha3_256Stream = Sha3Test.class.getResourceAsStream("/io/getlime/security/powerauth/crypto/lib/v4/hash/SHA3_256_TestVectors.json");
+        Map<String, List<Map<String, String>>> sha3_256Data = MAPPER.readValue(sha3_256Stream, new TypeReference<>() {});
+        return sha3_256Data.get("sha3_256_test_vectors").stream();
+    }
+
+    static Stream<Map<String, String>> jsonDataSha3_384Provider() throws IOException {
+        InputStream sha3_384Stream = Sha3Test.class.getResourceAsStream("/io/getlime/security/powerauth/crypto/lib/v4/hash/SHA3_384_TestVectors.json");
+        Map<String, List<Map<String, String>>> sha3_384Data = MAPPER.readValue(sha3_384Stream, new TypeReference<>() {});
+        return sha3_384Data.get("sha3_384_test_vectors").stream();
+    }
+
+    @ParameterizedTest
+    @MethodSource("jsonDataSha3_256Provider")
+    void testSha3_256(Map<String, String> vector) {
+        String msgHex = vector.get("msg");
+        String expectedMdHex = vector.get("digest");
+        byte[] msgBytes = Hex.decode(msgHex);
+        byte[] expectedMdBytes = Hex.decode(expectedMdHex);
+        byte[] computedMdBytes = Sha3.hash256(msgBytes);
+        assertArrayEquals(expectedMdBytes, computedMdBytes, "SHA3-256 failed for Msg: " + msgHex);
+    }
+
+    @ParameterizedTest
+    @MethodSource("jsonDataSha3_384Provider")
+    void testSha3_384(Map<String, String> vector) {
+        String msgHex = vector.get("msg");
+        String expectedMdHex = vector.get("digest");
+        byte[] msgBytes = Hex.decode(msgHex);
+        byte[] expectedMdBytes = Hex.decode(expectedMdHex);
+        byte[] computedMdBytes = Sha3.hash384(msgBytes);
+        assertArrayEquals(expectedMdBytes, computedMdBytes, "SHA3-384 failed for Msg: " + msgHex);
+    }
+
+}