6bf52c4271
NativeCrypto is a conscrypt class that contained several OpenSSL constants. NativeConstants is the new class that contains the same thing, but the latter is automatically generated and thus won't drift from the C headers. Bug: 20521989 Change-Id: I45c7b9a6844a06e3ffd09be692ebf733e1ebbbcc
80 lines
2.0 KiB
C++
80 lines
2.0 KiB
C++
/*
|
|
* 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 <stdlib.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");
|
|
}
|