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Diffstat (limited to 'keystore-cts/java/com/google/security/wycheproof/JsonUtil.java')
-rw-r--r--keystore-cts/java/com/google/security/wycheproof/JsonUtil.java91
1 files changed, 0 insertions, 91 deletions
diff --git a/keystore-cts/java/com/google/security/wycheproof/JsonUtil.java b/keystore-cts/java/com/google/security/wycheproof/JsonUtil.java
deleted file mode 100644
index 6ff9e2f..0000000
--- a/keystore-cts/java/com/google/security/wycheproof/JsonUtil.java
+++ /dev/null
@@ -1,91 +0,0 @@
-/**
- * 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 com.google.security.wycheproof;
-
-import static java.nio.charset.StandardCharsets.UTF_8;
-
-import com.google.gson.JsonElement;
-import com.google.gson.JsonObject;
-import com.google.gson.JsonParseException;
-import com.google.gson.JsonParser;
-import com.google.gson.stream.JsonReader;
-import java.io.FileInputStream;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.IOException;
-import java.math.BigInteger;
-
-/** Utilities for reading test vectors in JSON format */
-public class JsonUtil {
-
- /**
- * Reads a set of test vectors from a file.
- * @param filename the name of the file, local to the directory with the
- * the test vectors.
- * @return a JsonObject with a test
- * @throws IOException if the test vectors could not be read.
- * @throws JsonParseException if the file is not valid JSON.
- */
- public static JsonObject getTestVectors(Class ref, String filename) throws
- IOException {
- // The directory where the test vectors are.
- String testVectorsDir = "/";
- try (InputStream is = ref.getResourceAsStream(testVectorsDir + filename)) {
- JsonReader reader = new JsonReader(new InputStreamReader(is, UTF_8));
- JsonParser parser = new JsonParser();
- JsonElement elem = parser.parse(reader);
- return elem.getAsJsonObject();
- }
- }
-
- /**
- * Converts a JsonElement into a byte array.
- * @param element a JsonElement containing an encoded byte array.
- * Wycheproof represents byte arrays as hexadeciamal strings.
- * @throws ClassCastException if element is not a valid string value.
- * @throws IllegalStateException - if element contains an array.
- */
- public static byte[] asByteArray(JsonElement element) {
- String hex = element.getAsString();
- return TestUtil.hexToBytes(hex);
- }
-
- /**
- * Converts a JsonElement into a BigInteger.
- * @param element a JsonElement containing a BigInteger.
- * Wycheproof represents BigIntegers as hexadecimal strings using
- * twos complement representation.
- * <p> E.g., 31 is represented as "1f", -1 is represented as "f", and
- * 255 is represented as "0ff".
- * @throws ClassCastException if element is not a valid string value.
- * @throws IllegalStateException if element contains an array.
- * @throws NumberFormatException if representation of the BigInteger is invalid.
- */
- public static BigInteger asBigInteger(JsonElement element) {
- String hex = element.getAsString();
- return asBigInteger(hex);
- }
- public static BigInteger asBigInteger(String hex) {
- // TODO(bleichen): Consider to change the representation of BigIntegers in
- // Wycheproof as hexadecimal string with a sign.
- if (hex.length() % 2 == 1) {
- if (hex.charAt(0) >= '0' && hex.charAt(0) <= '7') {
- hex = "0" + hex;
- } else {
- hex = "f" + hex;
- }
- }
- return new BigInteger(TestUtil.hexToBytes(hex));
- }
-}