moved all stuff to github

1 files changed, 190 insertions, 0 deletions

diff --git a/src/crypto/skein_port.h b/src/crypto/skein_port.h
new file mode 100644
index 000000000..bd47065ad
--- /dev/null
+++ b/src/crypto/skein_port.h
@@ -0,0 +1,190 @@
+#ifndef _SKEIN_PORT_H_
+#define _SKEIN_PORT_H_
+
+#include <limits.h>
+#include <stdint.h>
+
+#ifndef RETURN_VALUES
+#  define RETURN_VALUES
+#  if defined( DLL_EXPORT )
+#    if defined( _MSC_VER ) || defined ( __INTEL_COMPILER )
+#      define VOID_RETURN    __declspec( dllexport ) void __stdcall
+#      define INT_RETURN     __declspec( dllexport ) int  __stdcall
+#    elif defined( __GNUC__ )
+#      define VOID_RETURN    __declspec( __dllexport__ ) void
+#      define INT_RETURN     __declspec( __dllexport__ ) int
+#    else
+#      error Use of the DLL is only available on the Microsoft, Intel and GCC compilers
+#    endif
+#  elif defined( DLL_IMPORT )
+#    if defined( _MSC_VER ) || defined ( __INTEL_COMPILER )
+#      define VOID_RETURN    __declspec( dllimport ) void __stdcall
+#      define INT_RETURN     __declspec( dllimport ) int  __stdcall
+#    elif defined( __GNUC__ )
+#      define VOID_RETURN    __declspec( __dllimport__ ) void
+#      define INT_RETURN     __declspec( __dllimport__ ) int
+#    else
+#      error Use of the DLL is only available on the Microsoft, Intel and GCC compilers
+#    endif
+#  elif defined( __WATCOMC__ )
+#    define VOID_RETURN  void __cdecl
+#    define INT_RETURN   int  __cdecl
+#  else
+#    define VOID_RETURN  void
+#    define INT_RETURN   int
+#  endif
+#endif
+
+/*  These defines are used to declare buffers in a way that allows
+    faster operations on longer variables to be used.  In all these
+    defines 'size' must be a power of 2 and >= 8
+
+    dec_unit_type(size,x)       declares a variable 'x' of length 
+                                'size' bits
+
+    dec_bufr_type(size,bsize,x) declares a buffer 'x' of length 'bsize' 
+                                bytes defined as an array of variables
+                                each of 'size' bits (bsize must be a 
+                                multiple of size / 8)
+
+    ptr_cast(x,size)            casts a pointer to a pointer to a 
+                                varaiable of length 'size' bits
+*/
+
+#define ui_type(size)               uint##size##_t
+#define dec_unit_type(size,x)       typedef ui_type(size) x
+#define dec_bufr_type(size,bsize,x) typedef ui_type(size) x[bsize / (size >> 3)]
+#define ptr_cast(x,size)            ((ui_type(size)*)(x))
+
+typedef unsigned int    uint_t;             /* native unsigned integer */
+typedef uint8_t         u08b_t;             /*  8-bit unsigned integer */
+typedef uint64_t        u64b_t;             /* 64-bit unsigned integer */
+
+#ifndef RotL_64
+#define RotL_64(x,N)    (((x) << (N)) | ((x) >> (64-(N))))
+#endif
+
+/*
+ * Skein is "natively" little-endian (unlike SHA-xxx), for optimal
+ * performance on x86 CPUs.  The Skein code requires the following
+ * definitions for dealing with endianness:
+ *
+ *    SKEIN_NEED_SWAP:  0 for little-endian, 1 for big-endian
+ *    Skein_Put64_LSB_First
+ *    Skein_Get64_LSB_First
+ *    Skein_Swap64
+ *
+ * If SKEIN_NEED_SWAP is defined at compile time, it is used here
+ * along with the portable versions of Put64/Get64/Swap64, which 
+ * are slow in general.
+ *
+ * Otherwise, an "auto-detect" of endianness is attempted below.
+ * If the default handling doesn't work well, the user may insert
+ * platform-specific code instead (e.g., for big-endian CPUs).
+ *
+ */
+#ifndef SKEIN_NEED_SWAP /* compile-time "override" for endianness? */
+
+
+#include "common/int-util.h"
+
+#define IS_BIG_ENDIAN      4321 /* byte 0 is most significant (mc68k) */
+#define IS_LITTLE_ENDIAN   1234 /* byte 0 is least significant (i386) */
+
+#if BYTE_ORDER == LITTLE_ENDIAN
+#  define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN
+#endif
+
+#if BYTE_ORDER == BIG_ENDIAN
+#  define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN
+#endif
+
+/* special handler for IA64, which may be either endianness (?)  */
+/* here we assume little-endian, but this may need to be changed */
+#if defined(__ia64) || defined(__ia64__) || defined(_M_IA64)
+#  define PLATFORM_MUST_ALIGN (1)
+#ifndef PLATFORM_BYTE_ORDER
+#  define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN
+#endif
+#endif
+
+#ifndef   PLATFORM_MUST_ALIGN
+#  define PLATFORM_MUST_ALIGN (0)
+#endif
+
+
+#if   PLATFORM_BYTE_ORDER == IS_BIG_ENDIAN
+    /* here for big-endian CPUs */
+#define SKEIN_NEED_SWAP   (1)
+#elif PLATFORM_BYTE_ORDER == IS_LITTLE_ENDIAN
+    /* here for x86 and x86-64 CPUs (and other detected little-endian CPUs) */
+#define SKEIN_NEED_SWAP   (0)
+#if   PLATFORM_MUST_ALIGN == 0              /* ok to use "fast" versions? */
+#define Skein_Put64_LSB_First(dst08,src64,bCnt) memcpy(dst08,src64,bCnt)
+#define Skein_Get64_LSB_First(dst64,src08,wCnt) memcpy(dst64,src08,8*(wCnt))
+#endif
+#else
+#error "Skein needs endianness setting!"
+#endif
+
+#endif /* ifndef SKEIN_NEED_SWAP */
+
+/*
+ ******************************************************************
+ *      Provide any definitions still needed.
+ ******************************************************************
+ */
+#ifndef Skein_Swap64  /* swap for big-endian, nop for little-endian */
+#if     SKEIN_NEED_SWAP
+#define Skein_Swap64(w64)                       \
+  ( (( ((u64b_t)(w64))       & 0xFF) << 56) |   \
+    (((((u64b_t)(w64)) >> 8) & 0xFF) << 48) |   \
+    (((((u64b_t)(w64)) >>16) & 0xFF) << 40) |   \
+    (((((u64b_t)(w64)) >>24) & 0xFF) << 32) |   \
+    (((((u64b_t)(w64)) >>32) & 0xFF) << 24) |   \
+    (((((u64b_t)(w64)) >>40) & 0xFF) << 16) |   \
+    (((((u64b_t)(w64)) >>48) & 0xFF) <<  8) |   \
+    (((((u64b_t)(w64)) >>56) & 0xFF)      ) )
+#else
+#define Skein_Swap64(w64)  (w64)
+#endif
+#endif  /* ifndef Skein_Swap64 */
+
+
+#ifndef Skein_Put64_LSB_First
+void    Skein_Put64_LSB_First(u08b_t *dst,const u64b_t *src,size_t bCnt)
+#ifdef  SKEIN_PORT_CODE /* instantiate the function code here? */
+    { /* this version is fully portable (big-endian or little-endian), but slow */
+    size_t n;
+
+    for (n=0;n<bCnt;n++)
+        dst[n] = (u08b_t) (src[n>>3] >> (8*(n&7)));
+    }
+#else
+    ;    /* output only the function prototype */
+#endif
+#endif   /* ifndef Skein_Put64_LSB_First */
+
+
+#ifndef Skein_Get64_LSB_First
+void    Skein_Get64_LSB_First(u64b_t *dst,const u08b_t *src,size_t wCnt)
+#ifdef  SKEIN_PORT_CODE /* instantiate the function code here? */
+    { /* this version is fully portable (big-endian or little-endian), but slow */
+    size_t n;
+
+    for (n=0;n<8*wCnt;n+=8)
+        dst[n/8] = (((u64b_t) src[n  ])      ) +
+                   (((u64b_t) src[n+1]) <<  8) +
+                   (((u64b_t) src[n+2]) << 16) +
+                   (((u64b_t) src[n+3]) << 24) +
+                   (((u64b_t) src[n+4]) << 32) +
+                   (((u64b_t) src[n+5]) << 40) +
+                   (((u64b_t) src[n+6]) << 48) +
+                   (((u64b_t) src[n+7]) << 56) ;
+    }
+#else
+    ;    /* output only the function prototype */
+#endif
+#endif   /* ifndef Skein_Get64_LSB_First */
+
+#endif   /* ifndef _SKEIN_PORT_H_ */