diff options
Diffstat (limited to '')
| -rw-r--r-- | lib/cryptopp/misc.cpp | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/lib/cryptopp/misc.cpp b/lib/cryptopp/misc.cpp deleted file mode 100644 index 93760e3a3..000000000 --- a/lib/cryptopp/misc.cpp +++ /dev/null @@ -1,189 +0,0 @@ -// misc.cpp - written and placed in the public domain by Wei Dai - -#include "pch.h" - -#ifndef CRYPTOPP_IMPORTS - -#include "misc.h" -#include "words.h" -#include <new> - -#if defined(CRYPTOPP_MEMALIGN_AVAILABLE) || defined(CRYPTOPP_MM_MALLOC_AVAILABLE) || defined(QNX) -#include <malloc.h> -#endif - -NAMESPACE_BEGIN(CryptoPP) - -void xorbuf(byte *buf, const byte *mask, size_t count) -{ - size_t i; - - if (IsAligned<word32>(buf) && IsAligned<word32>(mask)) - { - if (!CRYPTOPP_BOOL_SLOW_WORD64 && IsAligned<word64>(buf) && IsAligned<word64>(mask)) - { - for (i=0; i<count/8; i++) - ((word64*)buf)[i] ^= ((word64*)mask)[i]; - count -= 8*i; - if (!count) - return; - buf += 8*i; - mask += 8*i; - } - - for (i=0; i<count/4; i++) - ((word32*)buf)[i] ^= ((word32*)mask)[i]; - count -= 4*i; - if (!count) - return; - buf += 4*i; - mask += 4*i; - } - - for (i=0; i<count; i++) - buf[i] ^= mask[i]; -} - -void xorbuf(byte *output, const byte *input, const byte *mask, size_t count) -{ - size_t i; - - if (IsAligned<word32>(output) && IsAligned<word32>(input) && IsAligned<word32>(mask)) - { - if (!CRYPTOPP_BOOL_SLOW_WORD64 && IsAligned<word64>(output) && IsAligned<word64>(input) && IsAligned<word64>(mask)) - { - for (i=0; i<count/8; i++) - ((word64*)output)[i] = ((word64*)input)[i] ^ ((word64*)mask)[i]; - count -= 8*i; - if (!count) - return; - output += 8*i; - input += 8*i; - mask += 8*i; - } - - for (i=0; i<count/4; i++) - ((word32*)output)[i] = ((word32*)input)[i] ^ ((word32*)mask)[i]; - count -= 4*i; - if (!count) - return; - output += 4*i; - input += 4*i; - mask += 4*i; - } - - for (i=0; i<count; i++) - output[i] = input[i] ^ mask[i]; -} - -bool VerifyBufsEqual(const byte *buf, const byte *mask, size_t count) -{ - size_t i; - byte acc8 = 0; - - if (IsAligned<word32>(buf) && IsAligned<word32>(mask)) - { - word32 acc32 = 0; - if (!CRYPTOPP_BOOL_SLOW_WORD64 && IsAligned<word64>(buf) && IsAligned<word64>(mask)) - { - word64 acc64 = 0; - for (i=0; i<count/8; i++) - acc64 |= ((word64*)buf)[i] ^ ((word64*)mask)[i]; - count -= 8*i; - if (!count) - return acc64 == 0; - buf += 8*i; - mask += 8*i; - acc32 = word32(acc64) | word32(acc64>>32); - } - - for (i=0; i<count/4; i++) - acc32 |= ((word32*)buf)[i] ^ ((word32*)mask)[i]; - count -= 4*i; - if (!count) - return acc32 == 0; - buf += 4*i; - mask += 4*i; - acc8 = byte(acc32) | byte(acc32>>8) | byte(acc32>>16) | byte(acc32>>24); - } - - for (i=0; i<count; i++) - acc8 |= buf[i] ^ mask[i]; - return acc8 == 0; -} - -#if !(defined(_MSC_VER) && (_MSC_VER < 1300)) && !defined(ANDROID_NDK) -using std::new_handler; -using std::set_new_handler; -#endif - -void CallNewHandler() -{ -#if !defined(ANDROID_NDK) - new_handler newHandler = set_new_handler(NULL); - if (newHandler) - set_new_handler(newHandler); - - if (newHandler) - newHandler(); - else - throw std::bad_alloc(); -#endif -} - -#if CRYPTOPP_BOOL_ALIGN16_ENABLED - -void * AlignedAllocate(size_t size) -{ - byte *p; -#ifdef CRYPTOPP_MM_MALLOC_AVAILABLE - while (!(p = (byte *)_mm_malloc(size, 16))) -#elif defined(CRYPTOPP_MEMALIGN_AVAILABLE) - while (!(p = (byte *)memalign(16, size))) -#elif defined(CRYPTOPP_MALLOC_ALIGNMENT_IS_16) - while (!(p = (byte *)malloc(size))) -#else - while (!(p = (byte *)malloc(size + 16))) -#endif - CallNewHandler(); - -#ifdef CRYPTOPP_NO_ALIGNED_ALLOC - size_t adjustment = 16-((size_t)p%16); - p += adjustment; - p[-1] = (byte)adjustment; -#endif - - assert(IsAlignedOn(p, 16)); - return p; -} - -void AlignedDeallocate(void *p) -{ -#ifdef CRYPTOPP_MM_MALLOC_AVAILABLE - _mm_free(p); -#elif defined(CRYPTOPP_NO_ALIGNED_ALLOC) - p = (byte *)p - ((byte *)p)[-1]; - free(p); -#else - free(p); -#endif -} - -#endif - -void * UnalignedAllocate(size_t size) -{ - void *p; - while (!(p = malloc(size))) - CallNewHandler(); - return p; -} - -void UnalignedDeallocate(void *p) -{ - free(p); -} - -NAMESPACE_END - -#endif |