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| 1 /* ==================================================================== | |
| 2 * Copyright (c) 2010 The OpenSSL Project. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use is governed by OpenSSL license. | |
| 5 * ==================================================================== | |
| 6 */ | |
| 7 | |
| 8 #include <openssl/modes.h> | |
| 9 | |
| 10 | |
| 11 #if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__) | |
| 12 typedef __int64 i64; | |
| 13 typedef unsigned __int64 u64; | |
| 14 #define U64(C) C##UI64 | |
| 15 #elif defined(__arch64__) | |
| 16 typedef long i64; | |
| 17 typedef unsigned long u64; | |
| 18 #define U64(C) C##UL | |
| 19 #else | |
| 20 typedef long long i64; | |
| 21 typedef unsigned long long u64; | |
| 22 #define U64(C) C##ULL | |
| 23 #endif | |
| 24 | |
| 25 typedef unsigned int u32; | |
| 26 typedef unsigned char u8; | |
| 27 | |
| 28 #define STRICT_ALIGNMENT 1 | |
| 29 #if defined(__i386) || defined(__i386__) || \ | |
| 30 defined(__x86_64) || defined(__x86_64__) || \ | |
| 31 defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64) || \ | |
| 32 defined(__s390__) || defined(__s390x__) || \ | |
| 33 ( (defined(__arm__) || defined(__arm)) && \ | |
| 34 (defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || \ | |
| 35 defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__)) ) | |
| 36 # undef STRICT_ALIGNMENT | |
| 37 #endif | |
| 38 | |
| 39 #if !defined(PEDANTIC) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE
_ASM) | |
| 40 #if defined(__GNUC__) && __GNUC__>=2 | |
| 41 # if defined(__x86_64) || defined(__x86_64__) | |
| 42 # define BSWAP8(x) ({ u64 ret=(x); \ | |
| 43 asm ("bswapq %0" \ | |
| 44 : "+r"(ret)); ret; }) | |
| 45 # define BSWAP4(x) ({ u32 ret=(x); \ | |
| 46 asm ("bswapl %0" \ | |
| 47 : "+r"(ret)); ret; }) | |
| 48 # elif (defined(__i386) || defined(__i386__)) && !defined(I386_ONLY) | |
| 49 # define BSWAP8(x) ({ u32 lo=(u64)(x)>>32,hi=(x); \ | |
| 50 asm ("bswapl %0; bswapl %1" \ | |
| 51 : "+r"(hi),"+r"(lo)); \ | |
| 52 (u64)hi<<32|lo; }) | |
| 53 # define BSWAP4(x) ({ u32 ret=(x); \ | |
| 54 asm ("bswapl %0" \ | |
| 55 : "+r"(ret)); ret; }) | |
| 56 # elif (defined(__arm__) || defined(__arm)) && !defined(STRICT_ALIGNMENT) | |
| 57 # define BSWAP8(x) ({ u32 lo=(u64)(x)>>32,hi=(x); \ | |
| 58 asm ("rev %0,%0; rev %1,%1" \ | |
| 59 : "+r"(hi),"+r"(lo)); \ | |
| 60 (u64)hi<<32|lo; }) | |
| 61 # define BSWAP4(x) ({ u32 ret; \ | |
| 62 asm ("rev %0,%1" \ | |
| 63 : "=r"(ret) : "r"((u32)(x))); \ | |
| 64 ret; }) | |
| 65 # endif | |
| 66 #elif defined(_MSC_VER) | |
| 67 # if _MSC_VER>=1300 | |
| 68 # pragma intrinsic(_byteswap_uint64,_byteswap_ulong) | |
| 69 # define BSWAP8(x) _byteswap_uint64((u64)(x)) | |
| 70 # define BSWAP4(x) _byteswap_ulong((u32)(x)) | |
| 71 # elif defined(_M_IX86) | |
| 72 __inline u32 _bswap4(u32 val) { | |
| 73 _asm mov eax,val | |
| 74 _asm bswap eax | |
| 75 } | |
| 76 # define BSWAP4(x) _bswap4(x) | |
| 77 # endif | |
| 78 #endif | |
| 79 #endif | |
| 80 | |
| 81 #if defined(BSWAP4) && !defined(STRICT_ALIGNMENT) | |
| 82 #define GETU32(p) BSWAP4(*(const u32 *)(p)) | |
| 83 #define PUTU32(p,v) *(u32 *)(p) = BSWAP4(v) | |
| 84 #else | |
| 85 #define GETU32(p) ((u32)(p)[0]<<24|(u32)(p)[1]<<16|(u32)(p)[2]<<8|(u32)(p)
[3]) | |
| 86 #define PUTU32(p,v) ((p)[0]=(u8)((v)>>24),(p)[1]=(u8)((v)>>16),(p)[2]=(u8)((
v)>>8),(p)[3]=(u8)(v)) | |
| 87 #endif | |
| 88 | |
| 89 /* GCM definitions */ | |
| 90 | |
| 91 typedef struct { u64 hi,lo; } u128; | |
| 92 | |
| 93 #ifdef TABLE_BITS | |
| 94 #undef TABLE_BITS | |
| 95 #endif | |
| 96 /* | |
| 97 * Even though permitted values for TABLE_BITS are 8, 4 and 1, it should | |
| 98 * never be set to 8 [or 1]. For further information see gcm128.c. | |
| 99 */ | |
| 100 #define TABLE_BITS 4 | |
| 101 | |
| 102 struct gcm128_context { | |
| 103 /* Following 6 names follow names in GCM specification */ | |
| 104 union { u64 u[2]; u32 d[4]; u8 c[16]; } Yi,EKi,EK0,len, | |
| 105 Xi,H; | |
| 106 /* Relative position of Xi, H and pre-computed Htable is used | |
| 107 * in some assembler modules, i.e. don't change the order! */ | |
| 108 #if TABLE_BITS==8 | |
| 109 u128 Htable[256]; | |
| 110 #else | |
| 111 u128 Htable[16]; | |
| 112 void (*gmult)(u64 Xi[2],const u128 Htable[16]); | |
| 113 void (*ghash)(u64 Xi[2],const u128 Htable[16],const u8 *inp,size_t len); | |
| 114 #endif | |
| 115 unsigned int mres, ares; | |
| 116 block128_f block; | |
| 117 void *key; | |
| 118 }; | |
| 119 | |
| 120 struct xts128_context { | |
| 121 void *key1, *key2; | |
| 122 block128_f block1,block2; | |
| 123 }; | |
| 124 | |
| 125 struct ccm128_context { | |
| 126 union { u64 u[2]; u8 c[16]; } nonce, cmac; | |
| 127 u64 blocks; | |
| 128 block128_f block; | |
| 129 void *key; | |
| 130 }; | |
| 131 | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master