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Diffstat (limited to 'src/crypto/modes/internal.h')
| -rw-r--r-- | src/crypto/modes/internal.h | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/src/crypto/modes/internal.h b/src/crypto/modes/internal.h new file mode 100644 index 0000000..9662e0d --- /dev/null +++ b/src/crypto/modes/internal.h @@ -0,0 +1,199 @@ +/* ==================================================================== + * Copyright (c) 2008 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_MODES_INTERNAL_H +#define OPENSSL_HEADER_MODES_INTERNAL_H + +#include <openssl/base.h> + +#if defined(__cplusplus) +extern "C" { +#endif + + +#define asm __asm__ + +#define STRICT_ALIGNMENT 1 +#if defined(OPENSSL_X86_64) || defined(OPENSSL_X86) || defined(OPENSSL_AARCH64) +#undef STRICT_ALIGNMENT +#define STRICT_ALIGNMENT 0 +#endif + +#if !defined(PEDANTIC) && !defined(OPENSSL_NO_ASM) +#if defined(__GNUC__) && __GNUC__ >= 2 +#if defined(OPENSSL_X86_64) +#define BSWAP8(x) \ + ({ \ + uint64_t ret = (x); \ + asm("bswapq %0" : "+r"(ret)); \ + ret; \ + }) +#define BSWAP4(x) \ + ({ \ + uint32_t ret = (x); \ + asm("bswapl %0" : "+r"(ret)); \ + ret; \ + }) +#elif defined(OPENSSL_X86) +#define BSWAP8(x) \ + ({ \ + uint32_t lo = (uint64_t)(x) >> 32, hi = (x); \ + asm("bswapl %0; bswapl %1" : "+r"(hi), "+r"(lo)); \ + (uint64_t) hi << 32 | lo; \ + }) +#define BSWAP4(x) \ + ({ \ + uint32_t ret = (x); \ + asm("bswapl %0" : "+r"(ret)); \ + ret; \ + }) +#elif defined(OPENSSL_AARCH64) +#define BSWAP8(x) \ + ({ \ + uint64_t ret; \ + asm("rev %0,%1" : "=r"(ret) : "r"(x)); \ + ret; \ + }) +#define BSWAP4(x) \ + ({ \ + uint32_t ret; \ + asm("rev %w0,%w1" : "=r"(ret) : "r"(x)); \ + ret; \ + }) +#elif defined(OPENSSL_ARM) && !defined(STRICT_ALIGNMENT) +#define BSWAP8(x) \ + ({ \ + uint32_t lo = (uint64_t)(x) >> 32, hi = (x); \ + asm("rev %0,%0; rev %1,%1" : "+r"(hi), "+r"(lo)); \ + (uint64_t) hi << 32 | lo; \ + }) +#define BSWAP4(x) \ + ({ \ + uint32_t ret; \ + asm("rev %0,%1" : "=r"(ret) : "r"((uint32_t)(x))); \ + ret; \ + }) +#endif +#elif defined(_MSC_VER) +#if _MSC_VER >= 1300 +#pragma intrinsic(_byteswap_uint64, _byteswap_ulong) +#define BSWAP8(x) _byteswap_uint64((uint64_t)(x)) +#define BSWAP4(x) _byteswap_ulong((uint32_t)(x)) +#elif defined(OPENSSL_X86) +__inline uint32_t _bswap4(uint32_t val) { + _asm mov eax, val + _asm bswap eax +} +#define BSWAP4(x) _bswap4(x) +#endif +#endif +#endif + +#if defined(BSWAP4) && !defined(STRICT_ALIGNMENT) +#define GETU32(p) BSWAP4(*(const uint32_t *)(p)) +#define PUTU32(p, v) *(uint32_t *)(p) = BSWAP4(v) +#else +#define GETU32(p) \ + ((uint32_t)(p)[0] << 24 | (uint32_t)(p)[1] << 16 | (uint32_t)(p)[2] << 8 | (uint32_t)(p)[3]) +#define PUTU32(p, v) \ + ((p)[0] = (uint8_t)((v) >> 24), (p)[1] = (uint8_t)((v) >> 16), \ + (p)[2] = (uint8_t)((v) >> 8), (p)[3] = (uint8_t)(v)) +#endif + + +/* GCM definitions */ +typedef struct { uint64_t hi,lo; } u128; + +struct gcm128_context { + /* Following 6 names follow names in GCM specification */ + union { + uint64_t u[2]; + uint32_t d[4]; + uint8_t c[16]; + size_t t[16 / sizeof(size_t)]; + } Yi, EKi, EK0, len, Xi, H; + + /* Relative position of Xi, H and pre-computed Htable is used in some + * assembler modules, i.e. don't change the order! */ + u128 Htable[16]; + void (*gmult)(uint64_t Xi[2], const u128 Htable[16]); + void (*ghash)(uint64_t Xi[2], const u128 Htable[16], const uint8_t *inp, + size_t len); + + unsigned int mres, ares; + block128_f block; + void *key; +}; + +struct xts128_context { + void *key1, *key2; + block128_f block1, block2; +}; + +struct ccm128_context { + union { + uint64_t u[2]; + uint8_t c[16]; + } nonce, cmac; + uint64_t blocks; + block128_f block; + void *key; +}; + +#if defined(OPENSSL_X86) || defined(OPENSSL_X86_64) +/* crypto_gcm_clmul_enabled returns one if the CLMUL implementation of GCM is + * used. */ +int crypto_gcm_clmul_enabled(void); +#endif + + +#if defined(__cplusplus) +} /* extern C */ +#endif + +#endif /* OPENSSL_HEADER_MODES_INTERNAL_H */ |