Move all to deprecated folder.
This commit is contained in:
182
deprecated/3P/wolfssl/wolfcrypt/src/misc.c
Normal file
182
deprecated/3P/wolfssl/wolfcrypt/src/misc.c
Normal file
@@ -0,0 +1,182 @@
|
||||
/* misc.c
|
||||
*
|
||||
* Copyright (C) 2006-2015 wolfSSL Inc.
|
||||
*
|
||||
* This file is part of wolfSSL. (formerly known as CyaSSL)
|
||||
*
|
||||
* wolfSSL is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wolfSSL 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 General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
|
||||
*/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include <config.h>
|
||||
#endif
|
||||
|
||||
#include <wolfssl/wolfcrypt/settings.h>
|
||||
|
||||
#include <wolfssl/wolfcrypt/misc.h>
|
||||
|
||||
/* inlining these functions is a huge speed increase and a small size decrease,
|
||||
because the functions are smaller than function call setup/cleanup, e.g.,
|
||||
md5 benchmark is twice as fast with inline. If you don't want it, then
|
||||
define NO_INLINE and compile this file into wolfssl, otherwise it's used as
|
||||
a source header
|
||||
*/
|
||||
|
||||
#ifdef NO_INLINE
|
||||
#define STATIC
|
||||
#else
|
||||
#define STATIC static
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef INTEL_INTRINSICS
|
||||
|
||||
#include <stdlib.h> /* get intrinsic definitions */
|
||||
|
||||
/* for non visual studio probably need no long version, 32 bit only
|
||||
* i.e., _rotl and _rotr */
|
||||
#pragma intrinsic(_lrotl, _lrotr)
|
||||
|
||||
STATIC INLINE word32 rotlFixed(word32 x, word32 y)
|
||||
{
|
||||
return y ? _lrotl(x, y) : x;
|
||||
}
|
||||
|
||||
STATIC INLINE word32 rotrFixed(word32 x, word32 y)
|
||||
{
|
||||
return y ? _lrotr(x, y) : x;
|
||||
}
|
||||
|
||||
#else /* generic */
|
||||
|
||||
STATIC INLINE word32 rotlFixed(word32 x, word32 y)
|
||||
{
|
||||
return (x << y) | (x >> (sizeof(y) * 8 - y));
|
||||
}
|
||||
|
||||
|
||||
STATIC INLINE word32 rotrFixed(word32 x, word32 y)
|
||||
{
|
||||
return (x >> y) | (x << (sizeof(y) * 8 - y));
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
STATIC INLINE word32 ByteReverseWord32(word32 value)
|
||||
{
|
||||
#ifdef PPC_INTRINSICS
|
||||
/* PPC: load reverse indexed instruction */
|
||||
return (word32)__lwbrx(&value,0);
|
||||
#elif defined(KEIL_INTRINSICS)
|
||||
return (word32)__rev(value);
|
||||
#elif defined(FAST_ROTATE)
|
||||
/* 5 instructions with rotate instruction, 9 without */
|
||||
return (rotrFixed(value, 8U) & 0xff00ff00) |
|
||||
(rotlFixed(value, 8U) & 0x00ff00ff);
|
||||
#else
|
||||
/* 6 instructions with rotate instruction, 8 without */
|
||||
value = ((value & 0xFF00FF00) >> 8) | ((value & 0x00FF00FF) << 8);
|
||||
return rotlFixed(value, 16U);
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
STATIC INLINE void ByteReverseWords(word32* out, const word32* in,
|
||||
word32 byteCount)
|
||||
{
|
||||
word32 count = byteCount/(word32)sizeof(word32), i;
|
||||
|
||||
for (i = 0; i < count; i++)
|
||||
out[i] = ByteReverseWord32(in[i]);
|
||||
|
||||
}
|
||||
|
||||
|
||||
#ifdef WORD64_AVAILABLE
|
||||
|
||||
|
||||
STATIC INLINE word64 rotlFixed64(word64 x, word64 y)
|
||||
{
|
||||
return (x << y) | (x >> (sizeof(y) * 8 - y));
|
||||
}
|
||||
|
||||
|
||||
STATIC INLINE word64 rotrFixed64(word64 x, word64 y)
|
||||
{
|
||||
return (x >> y) | (x << (sizeof(y) * 8 - y));
|
||||
}
|
||||
|
||||
|
||||
STATIC INLINE word64 ByteReverseWord64(word64 value)
|
||||
{
|
||||
#ifdef WOLFCRYPT_SLOW_WORD64
|
||||
return (word64)(ByteReverseWord32((word32)value)) << 32 |
|
||||
ByteReverseWord32((word32)(value>>32));
|
||||
#else
|
||||
value = ((value & W64LIT(0xFF00FF00FF00FF00)) >> 8) |
|
||||
((value & W64LIT(0x00FF00FF00FF00FF)) << 8);
|
||||
value = ((value & W64LIT(0xFFFF0000FFFF0000)) >> 16) |
|
||||
((value & W64LIT(0x0000FFFF0000FFFF)) << 16);
|
||||
return rotlFixed64(value, 32U);
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
STATIC INLINE void ByteReverseWords64(word64* out, const word64* in,
|
||||
word32 byteCount)
|
||||
{
|
||||
word32 count = byteCount/(word32)sizeof(word64), i;
|
||||
|
||||
for (i = 0; i < count; i++)
|
||||
out[i] = ByteReverseWord64(in[i]);
|
||||
|
||||
}
|
||||
|
||||
#endif /* WORD64_AVAILABLE */
|
||||
|
||||
|
||||
STATIC INLINE void XorWords(wolfssl_word* r, const wolfssl_word* a, word32 n)
|
||||
{
|
||||
word32 i;
|
||||
|
||||
for (i = 0; i < n; i++) r[i] ^= a[i];
|
||||
}
|
||||
|
||||
|
||||
STATIC INLINE void xorbuf(void* buf, const void* mask, word32 count)
|
||||
{
|
||||
if (((wolfssl_word)buf | (wolfssl_word)mask | count) % WOLFSSL_WORD_SIZE == 0)
|
||||
XorWords( (wolfssl_word*)buf,
|
||||
(const wolfssl_word*)mask, count / WOLFSSL_WORD_SIZE);
|
||||
else {
|
||||
word32 i;
|
||||
byte* b = (byte*)buf;
|
||||
const byte* m = (const byte*)mask;
|
||||
|
||||
for (i = 0; i < count; i++) b[i] ^= m[i];
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* Make sure compiler doesn't skip */
|
||||
STATIC INLINE void ForceZero(const void* mem, word32 len)
|
||||
{
|
||||
volatile byte* z = (volatile byte*)mem;
|
||||
|
||||
while (len--) *z++ = 0;
|
||||
}
|
||||
|
||||
#undef STATIC
|
||||
Reference in New Issue
Block a user