97227dc52d
This finally removes the last Android hack. Both Chromium and Android end up needing this thing (Chromium needs it for WebCrypto but currently uses the EVP_AEAD version and Android needs it by way of wpa_supplicant). On the Android side, the alternative is we finish upstream's NEED_INTERNAL_AES_WRAP patch, but then it just uses its own key-wrap implementation. This seems a little silly, considering we have a version of key-wrap under a different API anyway. It also doesn't make much sense to leave the EVP_AEAD API around if we don't want people to use it and Chromium's the only consumer. Remove it and I'll switch Chromium to the new---er, old--- APIs next roll. Change-Id: I23a89cda25bddb6ac1033e4cd408165f393d1e6c Reviewed-on: https://boringssl-review.googlesource.com/11410 Commit-Queue: David Benjamin <davidben@google.com> Reviewed-by: Adam Langley <agl@google.com>
171 lines
7.2 KiB
C
171 lines
7.2 KiB
C
/* ====================================================================
|
|
* Copyright (c) 2002-2006 The OpenSSL Project. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* 3. All advertising materials mentioning features or use of this
|
|
* software must display the following acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
|
|
*
|
|
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
|
|
* endorse or promote products derived from this software without
|
|
* prior written permission. For written permission, please contact
|
|
* openssl-core@openssl.org.
|
|
*
|
|
* 5. Products derived from this software may not be called "OpenSSL"
|
|
* nor may "OpenSSL" appear in their names without prior written
|
|
* permission of the OpenSSL Project.
|
|
*
|
|
* 6. Redistributions of any form whatsoever must retain the following
|
|
* acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
|
|
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
|
|
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
* ==================================================================== */
|
|
|
|
#ifndef OPENSSL_HEADER_AES_H
|
|
#define OPENSSL_HEADER_AES_H
|
|
|
|
#include <openssl/base.h>
|
|
|
|
#if defined(__cplusplus)
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/* Raw AES functions. */
|
|
|
|
|
|
#define AES_ENCRYPT 1
|
|
#define AES_DECRYPT 0
|
|
|
|
/* AES_MAXNR is the maximum number of AES rounds. */
|
|
#define AES_MAXNR 14
|
|
|
|
#define AES_BLOCK_SIZE 16
|
|
|
|
/* aes_key_st should be an opaque type, but EVP requires that the size be
|
|
* known. */
|
|
struct aes_key_st {
|
|
uint32_t rd_key[4 * (AES_MAXNR + 1)];
|
|
unsigned rounds;
|
|
};
|
|
typedef struct aes_key_st AES_KEY;
|
|
|
|
/* AES_set_encrypt_key configures |aeskey| to encrypt with the |bits|-bit key,
|
|
* |key|.
|
|
*
|
|
* WARNING: unlike other OpenSSL functions, this returns zero on success and a
|
|
* negative number on error. */
|
|
OPENSSL_EXPORT int AES_set_encrypt_key(const uint8_t *key, unsigned bits,
|
|
AES_KEY *aeskey);
|
|
|
|
/* AES_set_decrypt_key configures |aeskey| to decrypt with the |bits|-bit key,
|
|
* |key|.
|
|
*
|
|
* WARNING: unlike other OpenSSL functions, this returns zero on success and a
|
|
* negative number on error. */
|
|
OPENSSL_EXPORT int AES_set_decrypt_key(const uint8_t *key, unsigned bits,
|
|
AES_KEY *aeskey);
|
|
|
|
/* AES_encrypt encrypts a single block from |in| to |out| with |key|. The |in|
|
|
* and |out| pointers may overlap. */
|
|
OPENSSL_EXPORT void AES_encrypt(const uint8_t *in, uint8_t *out,
|
|
const AES_KEY *key);
|
|
|
|
/* AES_decrypt decrypts a single block from |in| to |out| with |key|. The |in|
|
|
* and |out| pointers may overlap. */
|
|
OPENSSL_EXPORT void AES_decrypt(const uint8_t *in, uint8_t *out,
|
|
const AES_KEY *key);
|
|
|
|
|
|
/* Block cipher modes. */
|
|
|
|
/* AES_ctr128_encrypt encrypts (or decrypts, it's the same in CTR mode) |len|
|
|
* bytes from |in| to |out|. The |num| parameter must be set to zero on the
|
|
* first call and |ivec| will be incremented. */
|
|
OPENSSL_EXPORT void AES_ctr128_encrypt(const uint8_t *in, uint8_t *out,
|
|
size_t len, const AES_KEY *key,
|
|
uint8_t ivec[AES_BLOCK_SIZE],
|
|
uint8_t ecount_buf[AES_BLOCK_SIZE],
|
|
unsigned int *num);
|
|
|
|
/* AES_ecb_encrypt encrypts (or decrypts, if |enc| == |AES_DECRYPT|) a single,
|
|
* 16 byte block from |in| to |out|. */
|
|
OPENSSL_EXPORT void AES_ecb_encrypt(const uint8_t *in, uint8_t *out,
|
|
const AES_KEY *key, const int enc);
|
|
|
|
/* AES_cbc_encrypt encrypts (or decrypts, if |enc| == |AES_DECRYPT|) |len|
|
|
* bytes from |in| to |out|. The length must be a multiple of the block size. */
|
|
OPENSSL_EXPORT void AES_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t len,
|
|
const AES_KEY *key, uint8_t *ivec,
|
|
const int enc);
|
|
|
|
/* AES_ofb128_encrypt encrypts (or decrypts, it's the same in OFB mode) |len|
|
|
* bytes from |in| to |out|. The |num| parameter must be set to zero on the
|
|
* first call. */
|
|
OPENSSL_EXPORT void AES_ofb128_encrypt(const uint8_t *in, uint8_t *out,
|
|
size_t len, const AES_KEY *key,
|
|
uint8_t *ivec, int *num);
|
|
|
|
/* AES_cfb128_encrypt encrypts (or decrypts, if |enc| == |AES_DECRYPT|) |len|
|
|
* bytes from |in| to |out|. The |num| parameter must be set to zero on the
|
|
* first call. */
|
|
OPENSSL_EXPORT void AES_cfb128_encrypt(const uint8_t *in, uint8_t *out,
|
|
size_t len, const AES_KEY *key,
|
|
uint8_t *ivec, int *num, int enc);
|
|
|
|
|
|
/* AES key wrap.
|
|
*
|
|
* These functions implement AES Key Wrap mode, as defined in RFC 3394. They
|
|
* should never be used except to interoperate with existing systems that use
|
|
* this mode. */
|
|
|
|
/* AES_wrap_key performs AES key wrap on |in| which must be a multiple of 8
|
|
* bytes. |iv| must point to an 8 byte value or be NULL to use the default IV.
|
|
* |key| must have been configured for encryption. On success, it writes
|
|
* |in_len| + 8 bytes to |out| and returns |in_len| + 8. Otherwise, it returns
|
|
* -1. */
|
|
OPENSSL_EXPORT int AES_wrap_key(const AES_KEY *key, const uint8_t *iv,
|
|
uint8_t *out, const uint8_t *in, size_t in_len);
|
|
|
|
/* AES_unwrap_key performs AES key unwrap on |in| which must be a multiple of 8
|
|
* bytes. |iv| must point to an 8 byte value or be NULL to use the default IV.
|
|
* |key| must have been configured for decryption. On success, it writes
|
|
* |in_len| - 8 bytes to |out| and returns |in_len| - 8. Otherwise, it returns
|
|
* -1. */
|
|
OPENSSL_EXPORT int AES_unwrap_key(const AES_KEY *key, const uint8_t *iv,
|
|
uint8_t *out, const uint8_t *in,
|
|
size_t in_len);
|
|
|
|
|
|
#if defined(__cplusplus)
|
|
} /* extern C */
|
|
#endif
|
|
|
|
#endif /* OPENSSL_HEADER_AES_H */
|