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OpenSSL provides implementations of several AES modes which use bitslicing and can be accelerated on CPUs which support the NEON extension. This patch adds arm platform support to ossl(4) and provides an AES-CBC implementation, though bsaes_cbc_encrypt() only implements decryption. The real goal is to provide an accelerated AES-GCM implementation; this will be added in a subsequent patch. Initially derived from https://reviews.freebsd.org/D37420. Reviewed by: jhb Sponsored by: Klara, Inc. Sponsored by: Stormshield MFC after: 3 months Differential Revision: https://reviews.freebsd.org/D41304
62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2021 Stormshield.
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* Copyright (c) 2021 Semihalf.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __OSSL_CIPHER_H__
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#define __OSSL_CIPHER_H__
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#include <sys/types.h>
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#include <crypto/rijndael/rijndael.h>
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struct ossl_session_cipher;
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struct cryptop;
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struct crypto_session_params;
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typedef int (ossl_cipher_setkey_t)(const unsigned char*, int, void*);
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typedef int (ossl_cipher_process_t)(struct ossl_session_cipher*, struct cryptop*,
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const struct crypto_session_params*);
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typedef void (ossl_cipher_encrypt_t)(const unsigned char*, unsigned char*, size_t,
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const void*, unsigned char*, int);
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ossl_cipher_encrypt_t ossl_aes_cbc_encrypt;
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struct ossl_cipher {
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int type;
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uint16_t blocksize;
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uint16_t ivsize;
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ossl_cipher_setkey_t *set_encrypt_key;
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ossl_cipher_setkey_t *set_decrypt_key;
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ossl_cipher_process_t *process;
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};
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struct ossl_aes_keysched {
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uint32_t ks[4 * (RIJNDAEL_MAXNR + 1)];
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int rounds;
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};
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#endif
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