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Merge pull request #65 from noloader/power8
Add BLAKE2b for POWER8
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/* | ||
BLAKE2 reference source code package - optimized C implementations | ||
Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the | ||
terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at | ||
your option. The terms of these licenses can be found at: | ||
- CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0 | ||
- OpenSSL license : https://www.openssl.org/source/license.html | ||
- Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0 | ||
More information about the BLAKE2 hash function can be found at | ||
https://blake2.net. | ||
*/ | ||
#ifndef BLAKE2_CONFIG_H | ||
#define BLAKE2_CONFIG_H | ||
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#if !defined(__ALTIVEC__) | ||
# error "This code requires at least Altivec." | ||
#endif | ||
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#if !defined(_ARCH_PWR8) | ||
# error "This code requires at least POWER8." | ||
#endif | ||
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/* https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html */ | ||
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#if (defined(__GNUC__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)) || \ | ||
((defined(__xlc__) || defined(__xlC__)) && defined(__LITTLE_ENDIAN__)) | ||
# define NATIVE_LITTLE_ENDIAN 1 | ||
#endif | ||
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#if (defined(__GNUC__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)) || \ | ||
((defined(__xlc__) || defined(__xlC__)) && defined(__BIG_ENDIAN__)) | ||
# define NATIVE_BIG_ENDIAN 1 | ||
#endif | ||
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#endif |
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/* | ||
BLAKE2 reference source code package - reference C implementations | ||
Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the | ||
terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at | ||
your option. The terms of these licenses can be found at: | ||
- CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0 | ||
- OpenSSL license : https://www.openssl.org/source/license.html | ||
- Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0 | ||
More information about the BLAKE2 hash function can be found at | ||
https://blake2.net. | ||
*/ | ||
#ifndef BLAKE2_IMPL_H | ||
#define BLAKE2_IMPL_H | ||
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#include <stdint.h> | ||
#include <string.h> | ||
#include <assert.h> | ||
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#include "blake2-config.h" | ||
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#if !defined(__cplusplus) && (!defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L) | ||
#if defined(__GNUC__) | ||
#define BLAKE2_INLINE __inline__ | ||
#else | ||
#define BLAKE2_INLINE | ||
#endif | ||
#else | ||
#define BLAKE2_INLINE inline | ||
#endif | ||
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#if defined(__ALTIVEC__) | ||
# include <altivec.h> | ||
# undef vector | ||
# undef pixel | ||
# undef bool | ||
#endif | ||
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/* The PowerPC ABI says loads are non-const. Ugh... */ | ||
#ifndef CONST_V8_CAST | ||
#define CONST_V8_CAST(x) ((unsigned char*)(x)) | ||
#endif | ||
#ifndef CONST_V32_CAST | ||
#define CONST_V32_CAST(x) ((unsigned int*)(x)) | ||
#endif | ||
#ifndef NCONST_V8_CAST | ||
#define NCONST_V8_CAST(x) ((unsigned char*)(x)) | ||
#endif | ||
#ifndef NCONST_V32_CAST | ||
#define NCONST_V32_CAST(x) ((unsigned int*)(x)) | ||
#endif | ||
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#ifndef BLAKE2_UNUSED | ||
#define BLAKE2_UNUSED(x) ((void)(x)) | ||
#endif | ||
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#if defined(__ALTIVEC__) | ||
typedef __vector unsigned char uint8x16_p; | ||
typedef __vector unsigned int uint32x4_p; | ||
#if defined(__VSX__) || defined(_ARCH_PWR8) | ||
typedef __vector unsigned long long uint64x2_p; | ||
#endif | ||
#endif | ||
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static BLAKE2_INLINE uint32_t load32( const void *src ) | ||
{ | ||
#if defined(NATIVE_LITTLE_ENDIAN) | ||
uint32_t w; | ||
memcpy(&w, src, sizeof w); | ||
return w; | ||
#else | ||
const uint8_t *p = ( const uint8_t * )src; | ||
return (( uint32_t )( p[0] ) << 0) | | ||
(( uint32_t )( p[1] ) << 8) | | ||
(( uint32_t )( p[2] ) << 16) | | ||
(( uint32_t )( p[3] ) << 24) ; | ||
#endif | ||
} | ||
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static BLAKE2_INLINE uint64_t load64( const void *src ) | ||
{ | ||
#if defined(NATIVE_LITTLE_ENDIAN) | ||
uint64_t w; | ||
memcpy(&w, src, sizeof w); | ||
return w; | ||
#else | ||
const uint8_t *p = ( const uint8_t * )src; | ||
return (( uint64_t )( p[0] ) << 0) | | ||
(( uint64_t )( p[1] ) << 8) | | ||
(( uint64_t )( p[2] ) << 16) | | ||
(( uint64_t )( p[3] ) << 24) | | ||
(( uint64_t )( p[4] ) << 32) | | ||
(( uint64_t )( p[5] ) << 40) | | ||
(( uint64_t )( p[6] ) << 48) | | ||
(( uint64_t )( p[7] ) << 56) ; | ||
#endif | ||
} | ||
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static BLAKE2_INLINE uint16_t load16( const void *src ) | ||
{ | ||
#if defined(NATIVE_LITTLE_ENDIAN) | ||
uint16_t w; | ||
memcpy(&w, src, sizeof w); | ||
return w; | ||
#else | ||
const uint8_t *p = ( const uint8_t * )src; | ||
return ( uint16_t )((( uint32_t )( p[0] ) << 0) | | ||
(( uint32_t )( p[1] ) << 8)); | ||
#endif | ||
} | ||
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static BLAKE2_INLINE void store16( void *dst, uint16_t w ) | ||
{ | ||
#if defined(NATIVE_LITTLE_ENDIAN) | ||
memcpy(dst, &w, sizeof w); | ||
#else | ||
uint8_t *p = ( uint8_t * )dst; | ||
*p++ = ( uint8_t )w; w >>= 8; | ||
*p++ = ( uint8_t )w; | ||
#endif | ||
} | ||
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static BLAKE2_INLINE void store32( void *dst, uint32_t w ) | ||
{ | ||
#if defined(NATIVE_LITTLE_ENDIAN) | ||
memcpy(dst, &w, sizeof w); | ||
#else | ||
uint8_t *p = ( uint8_t * )dst; | ||
p[0] = (uint8_t)(w >> 0); | ||
p[1] = (uint8_t)(w >> 8); | ||
p[2] = (uint8_t)(w >> 16); | ||
p[3] = (uint8_t)(w >> 24); | ||
#endif | ||
} | ||
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static BLAKE2_INLINE void store64( void *dst, uint64_t w ) | ||
{ | ||
#if defined(NATIVE_LITTLE_ENDIAN) | ||
memcpy(dst, &w, sizeof w); | ||
#else | ||
uint8_t *p = ( uint8_t * )dst; | ||
p[0] = (uint8_t)(w >> 0); | ||
p[1] = (uint8_t)(w >> 8); | ||
p[2] = (uint8_t)(w >> 16); | ||
p[3] = (uint8_t)(w >> 24); | ||
p[4] = (uint8_t)(w >> 32); | ||
p[5] = (uint8_t)(w >> 40); | ||
p[6] = (uint8_t)(w >> 48); | ||
p[7] = (uint8_t)(w >> 56); | ||
#endif | ||
} | ||
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static BLAKE2_INLINE uint64_t load48( const void *src ) | ||
{ | ||
const uint8_t *p = ( const uint8_t * )src; | ||
return (( uint64_t )( p[0] ) << 0) | | ||
(( uint64_t )( p[1] ) << 8) | | ||
(( uint64_t )( p[2] ) << 16) | | ||
(( uint64_t )( p[3] ) << 24) | | ||
(( uint64_t )( p[4] ) << 32) | | ||
(( uint64_t )( p[5] ) << 40) ; | ||
} | ||
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static BLAKE2_INLINE void store48( void *dst, uint64_t w ) | ||
{ | ||
uint8_t *p = ( uint8_t * )dst; | ||
p[0] = (uint8_t)(w >> 0); | ||
p[1] = (uint8_t)(w >> 8); | ||
p[2] = (uint8_t)(w >> 16); | ||
p[3] = (uint8_t)(w >> 24); | ||
p[4] = (uint8_t)(w >> 32); | ||
p[5] = (uint8_t)(w >> 40); | ||
} | ||
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static BLAKE2_INLINE uint32_t rotr32( const uint32_t w, const unsigned c ) | ||
{ | ||
return ( w >> c ) | ( w << ( 32 - c ) ); | ||
} | ||
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static BLAKE2_INLINE uint64_t rotr64( const uint64_t w, const unsigned c ) | ||
{ | ||
return ( w >> c ) | ( w << ( 64 - c ) ); | ||
} | ||
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/* prevents compiler optimizing out memset() */ | ||
static BLAKE2_INLINE void secure_zero_memory(void *v, size_t n) | ||
{ | ||
static void *(*const volatile memset_v)(void *, int, size_t) = &memset; | ||
memset_v(v, 0, n); | ||
} | ||
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static BLAKE2_INLINE uint64x2_p vec_load64( const void *src ) | ||
{ | ||
#if defined(_ARCH_PWR9) | ||
assert((uintptr_t)src % 2 == 0); | ||
return (uint64x2_p) vec_xl(0, CONST_V8_CAST(src)) | ||
#elif defined(__VSX__) || defined(_ARCH_PWR8) | ||
assert((uintptr_t)src % 4 == 0); | ||
return (uint64x2_p) vec_xl(0, CONST_V32_CAST(src)); | ||
#else | ||
assert((uintptr_t)src % 16 == 0); | ||
return (uint64x2_p) vec_ld(0, CONST_V8_CAST(src)); | ||
#endif | ||
} | ||
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static BLAKE2_INLINE uint64x2_p vec_load64_le( const void *src, const uint8x16_p le_mask ) | ||
{ | ||
#if defined(NATIVE_BIG_ENDIAN) | ||
const uint64x2_p v = vec_load64(src); | ||
return vec_perm(v, v, le_mask); | ||
#else | ||
BLAKE2_UNUSED(le_mask); | ||
return vec_load64(src); | ||
#endif | ||
} | ||
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static BLAKE2_INLINE void vec_store64( void *dst, uint64x2_p w ) | ||
{ | ||
#if defined(_ARCH_PWR9) | ||
assert((uintptr_t)dst % 2 == 0); | ||
vec_xst((uint8x16_p)w, 0, NCONST_V8_CAST(dst)); | ||
#elif defined(__VSX__) || defined(_ARCH_PWR8) | ||
assert((uintptr_t)dst % 4 == 0); | ||
vec_xst((uint32x4_p)w, 0, NCONST_V32_CAST(dst)); | ||
#else | ||
assert((uintptr_t)dst % 16 == 0); | ||
vec_st(w, 0, NCONST_V32_CAST(dst)); | ||
#endif | ||
} | ||
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static BLAKE2_INLINE void vec_store64_le( void *dst, uint64x2_p w, const uint8x16_p le_mask) | ||
{ | ||
#if defined(NATIVE_BIG_ENDIAN) | ||
uint64x2_p v = vec_perm(w, w, le_mask); | ||
vec_store64(dst, v); | ||
#else | ||
BLAKE2_UNUSED(le_mask); | ||
vec_store64(dst, w); | ||
#endif | ||
} | ||
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#endif |
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