+++ /dev/null
-/*
- * Support for Intel AES-NI intruction set
- * Author: Huang Ying <ying.huang@intel.com>
- *
- * Intel AES-NI is a new set of Single Instruction Multiple Data
- * (SIMD) instructions that are going to be introduced in the next
- * generation of Intel processor, as of 2009. These instructions
- * enable fast and secure data encryption and decryption, using the
- * Advanced Encryption Standard (AES), defined by FIPS Publication
- * number 197. The architecture introduces six instructions that
- * offer full hardware support for AES. Four of them support high
- * performance data encryption and decryption, and the other two
- * instructions support the AES key expansion procedure.
- *
- * The white paper can be downloaded from:
- * http://softwarecommunity.intel.com/isn/downloads/intelavx/AES-Instructions-Set_WP.pdf
- *
- * This file is based on engines/e_padlock.c
- */
-
-/* ====================================================================
- * Copyright (c) 1999-2001 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
- * licensing@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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-
-
-#include <openssl/opensslconf.h>
-
-#if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_AES_NI) && !defined(OPENSSL_NO_AES)
-
-#include <stdio.h>
-#include "cryptlib.h"
-#include <openssl/dso.h>
-#include <openssl/engine.h>
-#include <openssl/evp.h>
-#include <openssl/aes.h>
-#include <openssl/err.h>
-#include <openssl/modes.h>
-
-/* AES-NI is available *ONLY* on some x86 CPUs. Not only that it
- doesn't exist elsewhere, but it even can't be compiled on other
- platforms! */
-#undef COMPILE_HW_AESNI
-#if (defined(__x86_64) || defined(__x86_64__) || \
- defined(_M_AMD64) || defined(_M_X64) || \
- defined(OPENSSL_IA32_SSE2)) && !defined(OPENSSL_NO_ASM)
-#define COMPILE_HW_AESNI
-static ENGINE *ENGINE_aesni (void);
-#endif
-
-void ENGINE_load_aesni (void)
-{
-/* On non-x86 CPUs it just returns. */
-#ifdef COMPILE_HW_AESNI
- ENGINE *toadd = ENGINE_aesni();
- if (!toadd)
- return;
- ENGINE_add (toadd);
- ENGINE_free (toadd);
- ERR_clear_error ();
-#endif
-}
-
-#ifdef COMPILE_HW_AESNI
-
-typedef unsigned int u32;
-typedef unsigned char u8;
-
-#if defined(__GNUC__) && __GNUC__>=2 && !defined(PEDANTIC)
-# define BSWAP4(x) ({ u32 ret=(x); \
- asm volatile ("bswapl %0" \
- : "+r"(ret)); ret; })
-#elif defined(_MSC_VER)
-# if _MSC_VER>=1300
-# pragma intrinsic(_byteswap_ulong)
-# define BSWAP4(x) _byteswap_ulong((u32)(x))
-# elif defined(_M_IX86)
- __inline u32 _bswap4(u32 val) {
- _asm mov eax,val
- _asm bswap eax
- }
-# define BSWAP4(x) _bswap4(x)
-# endif
-#endif
-
-#ifdef BSWAP4
-#define GETU32(p) BSWAP4(*(const u32 *)(p))
-#define PUTU32(p,v) *(u32 *)(p) = BSWAP4(v)
-#else
-#define GETU32(p) ((u32)(p)[0]<<24|(u32)(p)[1]<<16|(u32)(p)[2]<<8|(u32)(p)[3])
-#define PUTU32(p,v) ((p)[0]=(u8)((v)>>24),(p)[1]=(u8)((v)>>16),(p)[2]=(u8)((v)>>8),(p)[3]=(u8)(v))
-#endif
-
-int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
- AES_KEY *key);
-int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
- AES_KEY *key);
-
-void aesni_encrypt(const unsigned char *in, unsigned char *out,
- const AES_KEY *key);
-void aesni_decrypt(const unsigned char *in, unsigned char *out,
- const AES_KEY *key);
-
-void aesni_ecb_encrypt(const unsigned char *in,
- unsigned char *out,
- size_t length,
- const AES_KEY *key,
- int enc);
-void aesni_cbc_encrypt(const unsigned char *in,
- unsigned char *out,
- size_t length,
- const AES_KEY *key,
- unsigned char *ivec, int enc);
-
-void aesni_ctr32_encrypt_blocks(const unsigned char *in,
- unsigned char *out,
- size_t blocks,
- const void *key,
- const unsigned char *ivec);
-
-/* Function for ENGINE detection and control */
-static int aesni_init(ENGINE *e);
-
-/* Cipher Stuff */
-static int aesni_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
- const int **nids, int nid);
-
-#define AESNI_MIN_ALIGN 16
-#define AESNI_ALIGN(x) \
- ((void *)(((size_t)(x)+AESNI_MIN_ALIGN-1)&~(AESNI_MIN_ALIGN-1)))
-
-/* Engine names */
-static const char aesni_id[] = "aesni",
- aesni_name[] = "Intel AES-NI engine",
- no_aesni_name[] = "Intel AES-NI engine (no-aesni)";
-
-/* ===== Engine "management" functions ===== */
-
-/* Prepare the ENGINE structure for registration */
-static int
-aesni_bind_helper(ENGINE *e)
-{
- int engage = (OPENSSL_ia32cap_P[1] & (1 << (57-32))) != 0;
-
- /* Register everything or return with an error */
- if (!ENGINE_set_id(e, aesni_id) ||
- !ENGINE_set_name(e, engage ? aesni_name : no_aesni_name) ||
-
- !ENGINE_set_init_function(e, aesni_init) ||
- (engage && !ENGINE_set_ciphers (e, aesni_ciphers))
- )
- return 0;
-
- /* Everything looks good */
- return 1;
-}
-
-/* Constructor */
-static ENGINE *
-ENGINE_aesni(void)
-{
- ENGINE *eng = ENGINE_new();
-
- if (!eng) {
- return NULL;
- }
-
- if (!aesni_bind_helper(eng)) {
- ENGINE_free(eng);
- return NULL;
- }
-
- return eng;
-}
-
-/* Check availability of the engine */
-static int
-aesni_init(ENGINE *e)
-{
- return 1;
-}
-
-#if defined(NID_aes_128_cfb128) && ! defined (NID_aes_128_cfb)
-#define NID_aes_128_cfb NID_aes_128_cfb128
-#endif
-
-#if defined(NID_aes_128_ofb128) && ! defined (NID_aes_128_ofb)
-#define NID_aes_128_ofb NID_aes_128_ofb128
-#endif
-
-#if defined(NID_aes_192_cfb128) && ! defined (NID_aes_192_cfb)
-#define NID_aes_192_cfb NID_aes_192_cfb128
-#endif
-
-#if defined(NID_aes_192_ofb128) && ! defined (NID_aes_192_ofb)
-#define NID_aes_192_ofb NID_aes_192_ofb128
-#endif
-
-#if defined(NID_aes_256_cfb128) && ! defined (NID_aes_256_cfb)
-#define NID_aes_256_cfb NID_aes_256_cfb128
-#endif
-
-#if defined(NID_aes_256_ofb128) && ! defined (NID_aes_256_ofb)
-#define NID_aes_256_ofb NID_aes_256_ofb128
-#endif
-
-/* List of supported ciphers. */
-static int aesni_cipher_nids[] = {
- NID_aes_128_ecb,
- NID_aes_128_cbc,
- NID_aes_128_cfb,
- NID_aes_128_ofb,
- NID_aes_128_ctr,
-
- NID_aes_192_ecb,
- NID_aes_192_cbc,
- NID_aes_192_cfb,
- NID_aes_192_ofb,
- NID_aes_192_ctr,
-
- NID_aes_256_ecb,
- NID_aes_256_cbc,
- NID_aes_256_cfb,
- NID_aes_256_ofb,
- NID_aes_256_ctr,
-};
-static int aesni_cipher_nids_num =
- (sizeof(aesni_cipher_nids)/sizeof(aesni_cipher_nids[0]));
-
-typedef struct
-{
- AES_KEY ks;
- unsigned int _pad1[3];
-} AESNI_KEY;
-
-static int
-aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *user_key,
- const unsigned char *iv, int enc)
-{
- int ret;
- AES_KEY *key = AESNI_ALIGN(ctx->cipher_data);
-
- if (((ctx->cipher->flags & EVP_CIPH_MODE) == EVP_CIPH_ECB_MODE
- || (ctx->cipher->flags & EVP_CIPH_MODE) == EVP_CIPH_CBC_MODE)
- && !enc)
- ret=aesni_set_decrypt_key(user_key, ctx->key_len * 8, key);
- else
- ret=aesni_set_encrypt_key(user_key, ctx->key_len * 8, key);
-
- if(ret < 0) {
- EVPerr(EVP_F_AESNI_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
- return 0;
- }
-
- return 1;
-}
-
-static int aesni_cipher_ecb(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t inl)
-{ AES_KEY *key = AESNI_ALIGN(ctx->cipher_data);
- aesni_ecb_encrypt(in, out, inl, key, ctx->encrypt);
- return 1;
-}
-static int aesni_cipher_cbc(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t inl)
-{ AES_KEY *key = AESNI_ALIGN(ctx->cipher_data);
- aesni_cbc_encrypt(in, out, inl, key,
- ctx->iv, ctx->encrypt);
- return 1;
-}
-static int aesni_cipher_cfb(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t inl)
-{ AES_KEY *key = AESNI_ALIGN(ctx->cipher_data);
- CRYPTO_cfb128_encrypt(in, out, inl, key, ctx->iv,
- &ctx->num, ctx->encrypt,
- (block128_f)aesni_encrypt);
- return 1;
-}
-static int aesni_cipher_ofb(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t inl)
-{ AES_KEY *key = AESNI_ALIGN(ctx->cipher_data);
- CRYPTO_ofb128_encrypt(in, out, inl, key, ctx->iv,
- &ctx->num, (block128_f)aesni_encrypt);
- return 1;
-}
-
-#define AES_BLOCK_SIZE 16
-
-#define EVP_CIPHER_block_size_ECB AES_BLOCK_SIZE
-#define EVP_CIPHER_block_size_CBC AES_BLOCK_SIZE
-#define EVP_CIPHER_block_size_OFB 1
-#define EVP_CIPHER_block_size_CFB 1
-
-/* Declaring so many ciphers by hand would be a pain.
- Instead introduce a bit of preprocessor magic :-) */
-#define DECLARE_AES_EVP(ksize,lmode,umode) \
-static const EVP_CIPHER aesni_##ksize##_##lmode = { \
- NID_aes_##ksize##_##lmode, \
- EVP_CIPHER_block_size_##umode, \
- ksize / 8, \
- AES_BLOCK_SIZE, \
- 0 | EVP_CIPH_##umode##_MODE, \
- aesni_init_key, \
- aesni_cipher_##lmode, \
- NULL, \
- sizeof(AESNI_KEY), \
- EVP_CIPHER_set_asn1_iv, \
- EVP_CIPHER_get_asn1_iv, \
- NULL, \
- NULL \
-}
-
-DECLARE_AES_EVP(128,ecb,ECB);
-DECLARE_AES_EVP(128,cbc,CBC);
-DECLARE_AES_EVP(128,cfb,CFB);
-DECLARE_AES_EVP(128,ofb,OFB);
-
-DECLARE_AES_EVP(192,ecb,ECB);
-DECLARE_AES_EVP(192,cbc,CBC);
-DECLARE_AES_EVP(192,cfb,CFB);
-DECLARE_AES_EVP(192,ofb,OFB);
-
-DECLARE_AES_EVP(256,ecb,ECB);
-DECLARE_AES_EVP(256,cbc,CBC);
-DECLARE_AES_EVP(256,cfb,CFB);
-DECLARE_AES_EVP(256,ofb,OFB);
-
-#if notused
-static void ctr96_inc(unsigned char *counter) {
- u32 n=12;
- u8 c;
-
- do {
- --n;
- c = counter[n];
- ++c;
- counter[n] = c;
- if (c) return;
- } while (n);
-}
-#endif
-
-static int aesni_counter(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t len)
-{
- AES_KEY *key = AESNI_ALIGN(ctx->cipher_data);
-
- CRYPTO_ctr128_encrypt_ctr32(in,out,len,key,
- ctx->iv,ctx->buf,(unsigned int *)&ctx->num,
- aesni_ctr32_encrypt_blocks);
- return 1;
-}
-
-static const EVP_CIPHER aesni_128_ctr=
- {
- NID_aes_128_ctr,1,16,16,
- EVP_CIPH_CTR_MODE,
- aesni_init_key,
- aesni_counter,
- NULL,
- sizeof(AESNI_KEY),
- NULL,
- NULL,
- NULL,
- NULL
- };
-
-static const EVP_CIPHER aesni_192_ctr=
- {
- NID_aes_192_ctr,1,24,16,
- EVP_CIPH_CTR_MODE,
- aesni_init_key,
- aesni_counter,
- NULL,
- sizeof(AESNI_KEY),
- NULL,
- NULL,
- NULL,
- NULL
- };
-
-static const EVP_CIPHER aesni_256_ctr=
- {
- NID_aes_256_ctr,1,32,16,
- EVP_CIPH_CTR_MODE,
- aesni_init_key,
- aesni_counter,
- NULL,
- sizeof(AESNI_KEY),
- NULL,
- NULL,
- NULL,
- NULL
- };
-
-static int
-aesni_ciphers (ENGINE *e, const EVP_CIPHER **cipher,
- const int **nids, int nid)
-{
- /* No specific cipher => return a list of supported nids ... */
- if (!cipher) {
- *nids = aesni_cipher_nids;
- return aesni_cipher_nids_num;
- }
-
- /* ... or the requested "cipher" otherwise */
- switch (nid) {
- case NID_aes_128_ecb:
- *cipher = &aesni_128_ecb;
- break;
- case NID_aes_128_cbc:
- *cipher = &aesni_128_cbc;
- break;
- case NID_aes_128_cfb:
- *cipher = &aesni_128_cfb;
- break;
- case NID_aes_128_ofb:
- *cipher = &aesni_128_ofb;
- break;
- case NID_aes_128_ctr:
- *cipher = &aesni_128_ctr;
- break;
-
- case NID_aes_192_ecb:
- *cipher = &aesni_192_ecb;
- break;
- case NID_aes_192_cbc:
- *cipher = &aesni_192_cbc;
- break;
- case NID_aes_192_cfb:
- *cipher = &aesni_192_cfb;
- break;
- case NID_aes_192_ofb:
- *cipher = &aesni_192_ofb;
- break;
- case NID_aes_192_ctr:
- *cipher = &aesni_192_ctr;
- break;
-
- case NID_aes_256_ecb:
- *cipher = &aesni_256_ecb;
- break;
- case NID_aes_256_cbc:
- *cipher = &aesni_256_cbc;
- break;
- case NID_aes_256_cfb:
- *cipher = &aesni_256_cfb;
- break;
- case NID_aes_256_ofb:
- *cipher = &aesni_256_ofb;
- break;
- case NID_aes_256_ctr:
- *cipher = &aesni_256_ctr;
- break;
-
- default:
- /* Sorry, we don't support this NID */
- *cipher = NULL;
- return 0;
- }
-
- return 1;
-}
-
-#endif /* COMPILE_HW_AESNI */
-#endif /* !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_AESNI) && !defined(OPENSSL_NO_AES) */
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