diff options
Diffstat (limited to 'comm/third_party/libgcrypt/cipher/rijndael-internal.h')
| -rw-r--r-- | comm/third_party/libgcrypt/cipher/rijndael-internal.h | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/comm/third_party/libgcrypt/cipher/rijndael-internal.h b/comm/third_party/libgcrypt/cipher/rijndael-internal.h new file mode 100644 index 0000000000..7e01f6b057 --- /dev/null +++ b/comm/third_party/libgcrypt/cipher/rijndael-internal.h @@ -0,0 +1,194 @@ +/* Rijndael (AES) for GnuPG + * Copyright (C) 2000, 2001, 2002, 2003, 2007, + * 2008, 2011, 2012 Free Software Foundation, Inc. + * + * This file is part of Libgcrypt. + * + * Libgcrypt is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as + * published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * Libgcrypt is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef G10_RIJNDAEL_INTERNAL_H +#define G10_RIJNDAEL_INTERNAL_H + +#include "types.h" /* for byte and u32 typedefs */ + + +#define MAXKC (256/32) +#define MAXROUNDS 14 +#define BLOCKSIZE (128/8) + + +/* Helper macro to force alignment to 16 or 64 bytes. */ +#ifdef HAVE_GCC_ATTRIBUTE_ALIGNED +# define ATTR_ALIGNED_16 __attribute__ ((aligned (16))) +# define ATTR_ALIGNED_64 __attribute__ ((aligned (64))) +#else +# define ATTR_ALIGNED_16 +# define ATTR_ALIGNED_64 +#endif + + +/* USE_AMD64_ASM indicates whether to use AMD64 assembly code. */ +#undef USE_AMD64_ASM +#if defined(__x86_64__) && (defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \ + defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS)) +# define USE_AMD64_ASM 1 +#endif + +/* USE_SSSE3 indicates whether to use SSSE3 code. */ +#if defined(__x86_64__) && defined(HAVE_GCC_INLINE_ASM_SSSE3) && \ + (defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \ + defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS)) +# define USE_SSSE3 1 +#endif + +/* USE_ARM_ASM indicates whether to use ARM assembly code. */ +#undef USE_ARM_ASM +#if defined(__ARMEL__) +# ifdef HAVE_COMPATIBLE_GCC_ARM_PLATFORM_AS +# define USE_ARM_ASM 1 +# endif +#endif +#if defined(__AARCH64EL__) +# ifdef HAVE_COMPATIBLE_GCC_AARCH64_PLATFORM_AS +# define USE_ARM_ASM 1 +# endif +#endif + +/* USE_PADLOCK indicates whether to compile the padlock specific + code. */ +#undef USE_PADLOCK +#ifdef ENABLE_PADLOCK_SUPPORT +# ifdef HAVE_GCC_ATTRIBUTE_ALIGNED +# if (defined (__i386__) && SIZEOF_UNSIGNED_LONG == 4) || defined(__x86_64__) +# define USE_PADLOCK 1 +# endif +# endif +#endif /* ENABLE_PADLOCK_SUPPORT */ + +/* USE_AESNI inidicates whether to compile with Intel AES-NI code. We + need the vector-size attribute which seems to be available since + gcc 3. However, to be on the safe side we require at least gcc 4. */ +#undef USE_AESNI +#ifdef ENABLE_AESNI_SUPPORT +# if ((defined (__i386__) && SIZEOF_UNSIGNED_LONG == 4) || defined(__x86_64__)) +# if __GNUC__ >= 4 +# define USE_AESNI 1 +# endif +# endif +#endif /* ENABLE_AESNI_SUPPORT */ + +/* USE_ARM_CE indicates whether to enable ARMv8 Crypto Extension assembly + * code. */ +#undef USE_ARM_CE +#ifdef ENABLE_ARM_CRYPTO_SUPPORT +# if defined(HAVE_ARM_ARCH_V6) && defined(__ARMEL__) \ + && defined(HAVE_COMPATIBLE_GCC_ARM_PLATFORM_AS) \ + && defined(HAVE_GCC_INLINE_ASM_AARCH32_CRYPTO) +# define USE_ARM_CE 1 +# elif defined(__AARCH64EL__) \ + && defined(HAVE_COMPATIBLE_GCC_AARCH64_PLATFORM_AS) \ + && defined(HAVE_GCC_INLINE_ASM_AARCH64_CRYPTO) +# define USE_ARM_CE 1 +# endif +#endif /* ENABLE_ARM_CRYPTO_SUPPORT */ + +/* USE_PPC_CRYPTO indicates whether to enable PowerPC vector crypto + * accelerated code. USE_PPC_CRYPTO_WITH_PPC9LE indicates whether to + * enable POWER9 optimized variant. */ +#undef USE_PPC_CRYPTO +#undef USE_PPC_CRYPTO_WITH_PPC9LE +#ifdef ENABLE_PPC_CRYPTO_SUPPORT +# if defined(HAVE_COMPATIBLE_CC_PPC_ALTIVEC) && \ + defined(HAVE_GCC_INLINE_ASM_PPC_ALTIVEC) +# if __GNUC__ >= 4 +# define USE_PPC_CRYPTO 1 +# if !defined(WORDS_BIGENDIAN) && defined(HAVE_GCC_INLINE_ASM_PPC_ARCH_3_00) +# define USE_PPC_CRYPTO_WITH_PPC9LE 1 +# endif +# endif +# endif +#endif /* ENABLE_PPC_CRYPTO_SUPPORT */ + +/* USE_S390X_CRYPTO indicates whether to enable zSeries code. */ +#undef USE_S390X_CRYPTO +#if defined(HAVE_GCC_INLINE_ASM_S390X) +# define USE_S390X_CRYPTO 1 +#endif /* USE_S390X_CRYPTO */ + +struct RIJNDAEL_context_s; + +typedef unsigned int (*rijndael_cryptfn_t)(const struct RIJNDAEL_context_s *ctx, + unsigned char *bx, + const unsigned char *ax); +typedef void (*rijndael_prefetchfn_t)(void); +typedef void (*rijndael_prepare_decfn_t)(struct RIJNDAEL_context_s *ctx); + +/* Our context object. */ +typedef struct RIJNDAEL_context_s +{ + /* The first fields are the keyschedule arrays. This is so that + they are aligned on a 16 byte boundary if using gcc. This + alignment is required for the AES-NI code and a good idea in any + case. The alignment is guaranteed due to the way cipher.c + allocates the space for the context. The PROPERLY_ALIGNED_TYPE + hack is used to force a minimal alignment if not using gcc of if + the alignment requirement is higher that 16 bytes. */ + union + { + PROPERLY_ALIGNED_TYPE dummy; + byte keyschedule[MAXROUNDS+1][4][4]; + u32 keyschedule32[MAXROUNDS+1][4]; +#ifdef USE_PADLOCK + /* The key as passed to the padlock engine. It is only used if + the padlock engine is used (USE_PADLOCK, below). */ + unsigned char padlock_key[16] __attribute__ ((aligned (16))); +#endif /*USE_PADLOCK*/ + } u1; + union + { + PROPERLY_ALIGNED_TYPE dummy; + byte keyschedule[MAXROUNDS+1][4][4]; + u32 keyschedule32[MAXROUNDS+1][4]; + } u2; + int rounds; /* Key-length-dependent number of rounds. */ + unsigned int decryption_prepared:1; /* The decryption key schedule is available. */ +#ifdef USE_AESNI + unsigned int use_avx:1; /* AVX shall be used by AES-NI implementation. */ + unsigned int use_avx2:1; /* AVX2 shall be used by AES-NI implementation. */ +#endif /*USE_AESNI*/ +#ifdef USE_S390X_CRYPTO + byte km_func; + byte km_func_xts; + byte kmc_func; + byte kmac_func; + byte kmf_func; + byte kmo_func; + byte kma_func; +#endif /*USE_S390X_CRYPTO*/ + rijndael_cryptfn_t encrypt_fn; + rijndael_cryptfn_t decrypt_fn; + rijndael_prefetchfn_t prefetch_enc_fn; + rijndael_prefetchfn_t prefetch_dec_fn; + rijndael_prepare_decfn_t prepare_decryption; +} RIJNDAEL_context ATTR_ALIGNED_16; + +/* Macros defining alias for the keyschedules. */ +#define keyschenc u1.keyschedule +#define keyschenc32 u1.keyschedule32 +#define keyschdec u2.keyschedule +#define keyschdec32 u2.keyschedule32 +#define padlockkey u1.padlock_key + +#endif /* G10_RIJNDAEL_INTERNAL_H */ |