Revert "Move frameworks/base/tools/ to frameworks/tools/"
This reverts commit 9f6a119c8aa276432ece4fe2118bd8a3c9b1067e.
diff --git a/tools/obbtool/pbkdf2gen.cpp b/tools/obbtool/pbkdf2gen.cpp
new file mode 100644
index 0000000..98d67c0
--- /dev/null
+++ b/tools/obbtool/pbkdf2gen.cpp
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#include <openssl/evp.h>
+
+#include <sys/types.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+/**
+ * Simple program to generate a key based on PBKDF2 with preset inputs.
+ *
+ * Will print out the salt and key in hex.
+ */
+
+#define SALT_LEN 8
+#define ROUNDS 1024
+#define KEY_BITS 128
+
+int main(int argc, char* argv[])
+{
+ if (argc != 2) {
+ fprintf(stderr, "Usage: %s <password>\n", argv[0]);
+ exit(1);
+ }
+
+ int fd = open("/dev/urandom", O_RDONLY);
+ if (fd < 0) {
+ fprintf(stderr, "Could not open /dev/urandom: %s\n", strerror(errno));
+ close(fd);
+ exit(1);
+ }
+
+ unsigned char salt[SALT_LEN];
+
+ if (read(fd, &salt, SALT_LEN) != SALT_LEN) {
+ fprintf(stderr, "Could not read salt from /dev/urandom: %s\n", strerror(errno));
+ close(fd);
+ exit(1);
+ }
+ close(fd);
+
+ unsigned char rawKey[KEY_BITS];
+
+ if (PKCS5_PBKDF2_HMAC_SHA1(argv[1], strlen(argv[1]), salt, SALT_LEN,
+ ROUNDS, KEY_BITS, rawKey) != 1) {
+ fprintf(stderr, "Could not generate PBKDF2 output: %s\n", strerror(errno));
+ exit(1);
+ }
+
+ printf("salt=");
+ for (int i = 0; i < SALT_LEN; i++) {
+ printf("%02x", salt[i]);
+ }
+ printf("\n");
+
+ printf("key=");
+ for (int i = 0; i < (KEY_BITS / 8); i++) {
+ printf("%02x", rawKey[i]);
+ }
+ printf("\n");
+}