--- /dev/null
+cmake_minimum_required (VERSION 2.6)
+
+include_directories (${CMAKE_CURRENT_SOURCE_DIR}/include)
+
+# set(skeinBlock_src skein_block.c)
+set(skeinBlock_src skeinBlockNo3F.c)
+
+set(skein_src
+ ${skeinBlock_src}
+ skein.c
+ skeinApi.c
+ )
+
+set(threefish_src
+ threefishApi.c
+ threefish256Block.c
+ threefish512Block.c
+ threefish1024Block.c
+ )
+set(s3f_src ${skein_src} ${threefish_src})
+
+add_library(skein3fish SHARED ${s3f_src})
+set_target_properties(skein3fish PROPERTIES VERSION ${VERSION} SOVERSION ${SOVERSION})
+target_link_libraries(skein3fish ${LIBS})
+
+install(TARGETS skein3fish DESTINATION ${LIBDIRNAME})
+
--- /dev/null
+/*
+ ---------------------------------------------------------------------------
+ Copyright (c) 2003, Dr Brian Gladman, Worcester, UK. All rights reserved.
+
+ LICENSE TERMS
+
+ The free distribution and use of this software in both source and binary
+ form is allowed (with or without changes) provided that:
+
+ 1. distributions of this source code include the above copyright
+ notice, this list of conditions and the following disclaimer;
+
+ 2. distributions in binary form include the above copyright
+ notice, this list of conditions and the following disclaimer
+ in the documentation and/or other associated materials;
+
+ 3. the copyright holder's name is not used to endorse products
+ built using this software without specific written permission.
+
+ ALTERNATIVELY, provided that this notice is retained in full, this product
+ may be distributed under the terms of the GNU General Public License (GPL),
+ in which case the provisions of the GPL apply INSTEAD OF those given above.
+
+ DISCLAIMER
+
+ This software is provided 'as is' with no explicit or implied warranties
+ in respect of its properties, including, but not limited to, correctness
+ and/or fitness for purpose.
+ ---------------------------------------------------------------------------
+ Issue 20/10/2006
+*/
+
+#ifndef BRG_ENDIAN_H
+#define BRG_ENDIAN_H
+
+#define IS_BIG_ENDIAN 4321 /* byte 0 is most significant (mc68k) */
+#define IS_LITTLE_ENDIAN 1234 /* byte 0 is least significant (i386) */
+
+/* Include files where endian defines and byteswap functions may reside */
+#if defined( __FreeBSD__ ) || defined( __OpenBSD__ ) || defined( __NetBSD__ )
+# include <sys/endian.h>
+#elif defined( BSD ) && ( BSD >= 199103 ) || defined( __APPLE__ ) || \
+ defined( __CYGWIN32__ ) || defined( __DJGPP__ ) || defined( __osf__ )
+# include <machine/endian.h>
+#elif defined( __linux__ ) || defined( __GNUC__ ) || defined( __GNU_LIBRARY__ )
+# if !defined( __MINGW32__ ) && !defined(AVR)
+# include <endian.h>
+# if !defined( __BEOS__ )
+# include <byteswap.h>
+# endif
+# endif
+#endif
+
+/* Now attempt to set the define for platform byte order using any */
+/* of the four forms SYMBOL, _SYMBOL, __SYMBOL & __SYMBOL__, which */
+/* seem to encompass most endian symbol definitions */
+
+#if defined( BIG_ENDIAN ) && defined( LITTLE_ENDIAN )
+# if defined( BYTE_ORDER ) && BYTE_ORDER == BIG_ENDIAN
+# define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN
+# elif defined( BYTE_ORDER ) && BYTE_ORDER == LITTLE_ENDIAN
+# define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN
+# endif
+#elif defined( BIG_ENDIAN )
+# define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN
+#elif defined( LITTLE_ENDIAN )
+# define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN
+#endif
+
+#if defined( _BIG_ENDIAN ) && defined( _LITTLE_ENDIAN )
+# if defined( _BYTE_ORDER ) && _BYTE_ORDER == _BIG_ENDIAN
+# define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN
+# elif defined( _BYTE_ORDER ) && _BYTE_ORDER == _LITTLE_ENDIAN
+# define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN
+# endif
+#elif defined( _BIG_ENDIAN )
+# define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN
+#elif defined( _LITTLE_ENDIAN )
+# define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN
+#endif
+
+#if defined( __BIG_ENDIAN ) && defined( __LITTLE_ENDIAN )
+# if defined( __BYTE_ORDER ) && __BYTE_ORDER == __BIG_ENDIAN
+# define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN
+# elif defined( __BYTE_ORDER ) && __BYTE_ORDER == __LITTLE_ENDIAN
+# define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN
+# endif
+#elif defined( __BIG_ENDIAN )
+# define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN
+#elif defined( __LITTLE_ENDIAN )
+# define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN
+#endif
+
+#if defined( __BIG_ENDIAN__ ) && defined( __LITTLE_ENDIAN__ )
+# if defined( __BYTE_ORDER__ ) && __BYTE_ORDER__ == __BIG_ENDIAN__
+# define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN
+# elif defined( __BYTE_ORDER__ ) && __BYTE_ORDER__ == __LITTLE_ENDIAN__
+# define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN
+# endif
+#elif defined( __BIG_ENDIAN__ )
+# define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN
+#elif defined( __LITTLE_ENDIAN__ )
+# define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN
+#endif
+
+/* if the platform byte order could not be determined, then try to */
+/* set this define using common machine defines */
+#if !defined(PLATFORM_BYTE_ORDER)
+
+#if defined( __alpha__ ) || defined( __alpha ) || defined( i386 ) || \
+ defined( __i386__ ) || defined( _M_I86 ) || defined( _M_IX86 ) || \
+ defined( __OS2__ ) || defined( sun386 ) || defined( __TURBOC__ ) || \
+ defined( vax ) || defined( vms ) || defined( VMS ) || \
+ defined( __VMS ) || defined( _M_X64 ) || defined( AVR )
+# define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN
+
+#elif defined( AMIGA ) || defined( applec ) || defined( __AS400__ ) || \
+ defined( _CRAY ) || defined( __hppa ) || defined( __hp9000 ) || \
+ defined( ibm370 ) || defined( mc68000 ) || defined( m68k ) || \
+ defined( __MRC__ ) || defined( __MVS__ ) || defined( __MWERKS__ ) || \
+ defined( sparc ) || defined( __sparc) || defined( SYMANTEC_C ) || \
+ defined( __VOS__ ) || defined( __TIGCC__ ) || defined( __TANDEM ) || \
+ defined( THINK_C ) || defined( __VMCMS__ )
+# define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN
+
+#elif 0 /* **** EDIT HERE IF NECESSARY **** */
+# define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN
+#elif 0 /* **** EDIT HERE IF NECESSARY **** */
+# define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN
+#else
+# error Please edit lines 126 or 128 in brg_endian.h to set the platform byte order
+#endif
+#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
+
+#endif /* ifndef BRG_ENDIAN_H */
--- /dev/null
+/*
+ ---------------------------------------------------------------------------
+ Copyright (c) 1998-2006, Brian Gladman, Worcester, UK. All rights reserved.
+
+ LICENSE TERMS
+
+ The free distribution and use of this software in both source and binary
+ form is allowed (with or without changes) provided that:
+
+ 1. distributions of this source code include the above copyright
+ notice, this list of conditions and the following disclaimer;
+
+ 2. distributions in binary form include the above copyright
+ notice, this list of conditions and the following disclaimer
+ in the documentation and/or other associated materials;
+
+ 3. the copyright holder's name is not used to endorse products
+ built using this software without specific written permission.
+
+ ALTERNATIVELY, provided that this notice is retained in full, this product
+ may be distributed under the terms of the GNU General Public License (GPL),
+ in which case the provisions of the GPL apply INSTEAD OF those given above.
+
+ DISCLAIMER
+
+ This software is provided 'as is' with no explicit or implied warranties
+ in respect of its properties, including, but not limited to, correctness
+ and/or fitness for purpose.
+ ---------------------------------------------------------------------------
+ Issue 09/09/2006
+
+ The unsigned integer types defined here are of the form uint_<nn>t where
+ <nn> is the length of the type; for example, the unsigned 32-bit type is
+ 'uint_32t'. These are NOT the same as the 'C99 integer types' that are
+ defined in the inttypes.h and stdint.h headers since attempts to use these
+ types have shown that support for them is still highly variable. However,
+ since the latter are of the form uint<nn>_t, a regular expression search
+ and replace (in VC++ search on 'uint_{:z}t' and replace with 'uint\1_t')
+ can be used to convert the types used here to the C99 standard types.
+*/
+
+#ifndef BRG_TYPES_H
+#define BRG_TYPES_H
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#include <limits.h>
+
+#ifndef BRG_UI8
+# define BRG_UI8
+# if UCHAR_MAX == 255u
+ typedef unsigned char uint_8t;
+# else
+# error Please define uint_8t as an 8-bit unsigned integer type in brg_types.h
+# endif
+#endif
+
+#ifndef BRG_UI16
+# define BRG_UI16
+# if USHRT_MAX == 65535u
+ typedef unsigned short uint_16t;
+# else
+# error Please define uint_16t as a 16-bit unsigned short type in brg_types.h
+# endif
+#endif
+
+#ifndef BRG_UI32
+# define BRG_UI32
+# if UINT_MAX == 4294967295u
+# define li_32(h) 0x##h##u
+ typedef unsigned int uint_32t;
+# elif ULONG_MAX == 4294967295u
+# define li_32(h) 0x##h##ul
+ typedef unsigned long uint_32t;
+# elif defined( _CRAY )
+# error This code needs 32-bit data types, which Cray machines do not provide
+# else
+# error Please define uint_32t as a 32-bit unsigned integer type in brg_types.h
+# endif
+#endif
+
+#ifndef BRG_UI64
+# if defined( __BORLANDC__ ) && !defined( __MSDOS__ )
+# define BRG_UI64
+# define li_64(h) 0x##h##ui64
+ typedef unsigned __int64 uint_64t;
+# elif defined( _MSC_VER ) && ( _MSC_VER < 1300 ) /* 1300 == VC++ 7.0 */
+# define BRG_UI64
+# define li_64(h) 0x##h##ui64
+ typedef unsigned __int64 uint_64t;
+# elif defined( __sun ) && defined(ULONG_MAX) && ULONG_MAX == 0xfffffffful
+# define BRG_UI64
+# define li_64(h) 0x##h##ull
+ typedef unsigned long long uint_64t;
+# elif defined( UINT_MAX ) && UINT_MAX > 4294967295u
+# if UINT_MAX == 18446744073709551615u
+# define BRG_UI64
+# define li_64(h) 0x##h##u
+ typedef unsigned int uint_64t;
+# endif
+# elif defined( ULONG_MAX ) && ULONG_MAX > 4294967295u
+# if ULONG_MAX == 18446744073709551615ul
+# define BRG_UI64
+# define li_64(h) 0x##h##ul
+ typedef unsigned long uint_64t;
+# endif
+# elif defined( ULLONG_MAX ) && ULLONG_MAX > 4294967295u
+# if ULLONG_MAX == 18446744073709551615ull
+# define BRG_UI64
+# define li_64(h) 0x##h##ull
+ typedef unsigned long long uint_64t;
+# endif
+# elif defined( ULONG_LONG_MAX ) && ULONG_LONG_MAX > 4294967295u
+# if ULONG_LONG_MAX == 18446744073709551615ull
+# define BRG_UI64
+# define li_64(h) 0x##h##ull
+ typedef unsigned long long uint_64t;
+# endif
+# elif defined(__GNUC__) /* DLW: avoid mingw problem with -ansi */
+# define BRG_UI64
+# define li_64(h) 0x##h##ull
+ typedef unsigned long long uint_64t;
+# endif
+#endif
+
+#if defined( NEED_UINT_64T ) && !defined( BRG_UI64 )
+# error Please define uint_64t as an unsigned 64 bit type in brg_types.h
+#endif
+
+#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))
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif
--- /dev/null
+#ifndef _SKEIN_H_
+#define _SKEIN_H_ 1
+/**************************************************************************
+**
+** Interface declarations and internal definitions for Skein hashing.
+**
+** Source code author: Doug Whiting, 2008.
+**
+** This algorithm and source code is released to the public domain.
+**
+***************************************************************************
+**
+** The following compile-time switches may be defined to control some
+** tradeoffs between speed, code size, error checking, and security.
+**
+** The "default" note explains what happens when the switch is not defined.
+**
+** SKEIN_DEBUG -- make callouts from inside Skein code
+** to examine/display intermediate values.
+** [default: no callouts (no overhead)]
+**
+** SKEIN_ERR_CHECK -- how error checking is handled inside Skein
+** code. If not defined, most error checking
+** is disabled (for performance). Otherwise,
+** the switch value is interpreted as:
+** 0: use assert() to flag errors
+** 1: return SKEIN_FAIL to flag errors
+**
+***************************************************************************/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <stddef.h> /* get size_t definition */
+#include <skein_port.h> /* get platform-specific definitions */
+
+enum
+ {
+ SKEIN_SUCCESS = 0, /* return codes from Skein calls */
+ SKEIN_FAIL = 1,
+ SKEIN_BAD_HASHLEN = 2
+ };
+
+#define SKEIN_MODIFIER_WORDS ( 2) /* number of modifier (tweak) words */
+
+#define SKEIN_256_STATE_WORDS ( 4)
+#define SKEIN_512_STATE_WORDS ( 8)
+#define SKEIN1024_STATE_WORDS (16)
+#define SKEIN_MAX_STATE_WORDS (16)
+
+#define SKEIN_256_STATE_BYTES ( 8*SKEIN_256_STATE_WORDS)
+#define SKEIN_512_STATE_BYTES ( 8*SKEIN_512_STATE_WORDS)
+#define SKEIN1024_STATE_BYTES ( 8*SKEIN1024_STATE_WORDS)
+
+#define SKEIN_256_STATE_BITS (64*SKEIN_256_STATE_WORDS)
+#define SKEIN_512_STATE_BITS (64*SKEIN_512_STATE_WORDS)
+#define SKEIN1024_STATE_BITS (64*SKEIN1024_STATE_WORDS)
+
+#define SKEIN_256_BLOCK_BYTES ( 8*SKEIN_256_STATE_WORDS)
+#define SKEIN_512_BLOCK_BYTES ( 8*SKEIN_512_STATE_WORDS)
+#define SKEIN1024_BLOCK_BYTES ( 8*SKEIN1024_STATE_WORDS)
+
+typedef struct
+ {
+ size_t hashBitLen; /* size of hash result, in bits */
+ size_t bCnt; /* current byte count in buffer b[] */
+ u64b_t T[SKEIN_MODIFIER_WORDS]; /* tweak words: T[0]=byte cnt, T[1]=flags */
+ } Skein_Ctxt_Hdr_t;
+
+typedef struct /* 256-bit Skein hash context structure */
+ {
+ Skein_Ctxt_Hdr_t h; /* common header context variables */
+ u64b_t X[SKEIN_256_STATE_WORDS]; /* chaining variables */
+ u08b_t b[SKEIN_256_BLOCK_BYTES]; /* partial block buffer (8-byte aligned) */
+ } Skein_256_Ctxt_t;
+
+typedef struct /* 512-bit Skein hash context structure */
+ {
+ Skein_Ctxt_Hdr_t h; /* common header context variables */
+ u64b_t X[SKEIN_512_STATE_WORDS]; /* chaining variables */
+ u08b_t b[SKEIN_512_BLOCK_BYTES]; /* partial block buffer (8-byte aligned) */
+ } Skein_512_Ctxt_t;
+
+typedef struct /* 1024-bit Skein hash context structure */
+ {
+ Skein_Ctxt_Hdr_t h; /* common header context variables */
+ u64b_t X[SKEIN1024_STATE_WORDS]; /* chaining variables */
+ u08b_t b[SKEIN1024_BLOCK_BYTES]; /* partial block buffer (8-byte aligned) */
+ } Skein1024_Ctxt_t;
+
+/* Skein APIs for (incremental) "straight hashing" */
+int Skein_256_Init (Skein_256_Ctxt_t *ctx, size_t hashBitLen);
+int Skein_512_Init (Skein_512_Ctxt_t *ctx, size_t hashBitLen);
+int Skein1024_Init (Skein1024_Ctxt_t *ctx, size_t hashBitLen);
+
+int Skein_256_Update(Skein_256_Ctxt_t *ctx, const u08b_t *msg, size_t msgByteCnt);
+int Skein_512_Update(Skein_512_Ctxt_t *ctx, const u08b_t *msg, size_t msgByteCnt);
+int Skein1024_Update(Skein1024_Ctxt_t *ctx, const u08b_t *msg, size_t msgByteCnt);
+
+int Skein_256_Final (Skein_256_Ctxt_t *ctx, u08b_t * hashVal);
+int Skein_512_Final (Skein_512_Ctxt_t *ctx, u08b_t * hashVal);
+int Skein1024_Final (Skein1024_Ctxt_t *ctx, u08b_t * hashVal);
+
+/*
+** Skein APIs for "extended" initialization: MAC keys, tree hashing.
+** After an InitExt() call, just use Update/Final calls as with Init().
+**
+** Notes: Same parameters as _Init() calls, plus treeInfo/key/keyBytes.
+** When keyBytes == 0 and treeInfo == SKEIN_SEQUENTIAL,
+** the results of InitExt() are identical to calling Init().
+** The function Init() may be called once to "precompute" the IV for
+** a given hashBitLen value, then by saving a copy of the context
+** the IV computation may be avoided in later calls.
+** Similarly, the function InitExt() may be called once per MAC key
+** to precompute the MAC IV, then a copy of the context saved and
+** reused for each new MAC computation.
+**/
+int Skein_256_InitExt(Skein_256_Ctxt_t *ctx, size_t hashBitLen, u64b_t treeInfo, const u08b_t *key, size_t keyBytes);
+int Skein_512_InitExt(Skein_512_Ctxt_t *ctx, size_t hashBitLen, u64b_t treeInfo, const u08b_t *key, size_t keyBytes);
+int Skein1024_InitExt(Skein1024_Ctxt_t *ctx, size_t hashBitLen, u64b_t treeInfo, const u08b_t *key, size_t keyBytes);
+
+/*
+** Skein APIs for MAC and tree hash:
+** Final_Pad: pad, do final block, but no OUTPUT type
+** Output: do just the output stage
+*/
+int Skein_256_Final_Pad(Skein_256_Ctxt_t *ctx, u08b_t * hashVal);
+int Skein_512_Final_Pad(Skein_512_Ctxt_t *ctx, u08b_t * hashVal);
+int Skein1024_Final_Pad(Skein1024_Ctxt_t *ctx, u08b_t * hashVal);
+
+#ifndef SKEIN_TREE_HASH
+#define SKEIN_TREE_HASH (1)
+#endif
+#if SKEIN_TREE_HASH
+int Skein_256_Output (Skein_256_Ctxt_t *ctx, u08b_t * hashVal);
+int Skein_512_Output (Skein_512_Ctxt_t *ctx, u08b_t * hashVal);
+int Skein1024_Output (Skein1024_Ctxt_t *ctx, u08b_t * hashVal);
+#endif
+
+/*****************************************************************
+** "Internal" Skein definitions
+** -- not needed for sequential hashing API, but will be
+** helpful for other uses of Skein (e.g., tree hash mode).
+** -- included here so that they can be shared between
+** reference and optimized code.
+******************************************************************/
+
+/* tweak word T[1]: bit field starting positions */
+#define SKEIN_T1_BIT(BIT) ((BIT) - 64) /* offset 64 because it's the second word */
+
+#define SKEIN_T1_POS_TREE_LVL SKEIN_T1_BIT(112) /* bits 112..118: level in hash tree */
+#define SKEIN_T1_POS_BIT_PAD SKEIN_T1_BIT(119) /* bit 119 : partial final input byte */
+#define SKEIN_T1_POS_BLK_TYPE SKEIN_T1_BIT(120) /* bits 120..125: type field */
+#define SKEIN_T1_POS_FIRST SKEIN_T1_BIT(126) /* bits 126 : first block flag */
+#define SKEIN_T1_POS_FINAL SKEIN_T1_BIT(127) /* bit 127 : final block flag */
+
+/* tweak word T[1]: flag bit definition(s) */
+#define SKEIN_T1_FLAG_FIRST (((u64b_t) 1 ) << SKEIN_T1_POS_FIRST)
+#define SKEIN_T1_FLAG_FINAL (((u64b_t) 1 ) << SKEIN_T1_POS_FINAL)
+#define SKEIN_T1_FLAG_BIT_PAD (((u64b_t) 1 ) << SKEIN_T1_POS_BIT_PAD)
+
+/* tweak word T[1]: tree level bit field mask */
+#define SKEIN_T1_TREE_LVL_MASK (((u64b_t)0x7F) << SKEIN_T1_POS_TREE_LVL)
+#define SKEIN_T1_TREE_LEVEL(n) (((u64b_t) (n)) << SKEIN_T1_POS_TREE_LVL)
+
+/* tweak word T[1]: block type field */
+#define SKEIN_BLK_TYPE_KEY ( 0) /* key, for MAC and KDF */
+#define SKEIN_BLK_TYPE_CFG ( 4) /* configuration block */
+#define SKEIN_BLK_TYPE_PERS ( 8) /* personalization string */
+#define SKEIN_BLK_TYPE_PK (12) /* public key (for digital signature hashing) */
+#define SKEIN_BLK_TYPE_KDF (16) /* key identifier for KDF */
+#define SKEIN_BLK_TYPE_NONCE (20) /* nonce for PRNG */
+#define SKEIN_BLK_TYPE_MSG (48) /* message processing */
+#define SKEIN_BLK_TYPE_OUT (63) /* output stage */
+#define SKEIN_BLK_TYPE_MASK (63) /* bit field mask */
+
+#define SKEIN_T1_BLK_TYPE(T) (((u64b_t) (SKEIN_BLK_TYPE_##T)) << SKEIN_T1_POS_BLK_TYPE)
+#define SKEIN_T1_BLK_TYPE_KEY SKEIN_T1_BLK_TYPE(KEY) /* key, for MAC and KDF */
+#define SKEIN_T1_BLK_TYPE_CFG SKEIN_T1_BLK_TYPE(CFG) /* configuration block */
+#define SKEIN_T1_BLK_TYPE_PERS SKEIN_T1_BLK_TYPE(PERS) /* personalization string */
+#define SKEIN_T1_BLK_TYPE_PK SKEIN_T1_BLK_TYPE(PK) /* public key (for digital signature hashing) */
+#define SKEIN_T1_BLK_TYPE_KDF SKEIN_T1_BLK_TYPE(KDF) /* key identifier for KDF */
+#define SKEIN_T1_BLK_TYPE_NONCE SKEIN_T1_BLK_TYPE(NONCE)/* nonce for PRNG */
+#define SKEIN_T1_BLK_TYPE_MSG SKEIN_T1_BLK_TYPE(MSG) /* message processing */
+#define SKEIN_T1_BLK_TYPE_OUT SKEIN_T1_BLK_TYPE(OUT) /* output stage */
+#define SKEIN_T1_BLK_TYPE_MASK SKEIN_T1_BLK_TYPE(MASK) /* field bit mask */
+
+#define SKEIN_T1_BLK_TYPE_CFG_FINAL (SKEIN_T1_BLK_TYPE_CFG | SKEIN_T1_FLAG_FINAL)
+#define SKEIN_T1_BLK_TYPE_OUT_FINAL (SKEIN_T1_BLK_TYPE_OUT | SKEIN_T1_FLAG_FINAL)
+
+#define SKEIN_VERSION (1)
+
+#ifndef SKEIN_ID_STRING_LE /* allow compile-time personalization */
+#define SKEIN_ID_STRING_LE (0x33414853) /* "SHA3" (little-endian)*/
+#endif
+
+#define SKEIN_MK_64(hi32,lo32) ((lo32) + (((u64b_t) (hi32)) << 32))
+#define SKEIN_SCHEMA_VER SKEIN_MK_64(SKEIN_VERSION,SKEIN_ID_STRING_LE)
+#define SKEIN_KS_PARITY SKEIN_MK_64(0x1BD11BDA,0xA9FC1A22)
+
+#define SKEIN_CFG_STR_LEN (4*8)
+
+/* bit field definitions in config block treeInfo word */
+#define SKEIN_CFG_TREE_LEAF_SIZE_POS ( 0)
+#define SKEIN_CFG_TREE_NODE_SIZE_POS ( 8)
+#define SKEIN_CFG_TREE_MAX_LEVEL_POS (16)
+
+#define SKEIN_CFG_TREE_LEAF_SIZE_MSK (((u64b_t) 0xFF) << SKEIN_CFG_TREE_LEAF_SIZE_POS)
+#define SKEIN_CFG_TREE_NODE_SIZE_MSK (((u64b_t) 0xFF) << SKEIN_CFG_TREE_NODE_SIZE_POS)
+#define SKEIN_CFG_TREE_MAX_LEVEL_MSK (((u64b_t) 0xFF) << SKEIN_CFG_TREE_MAX_LEVEL_POS)
+
+#define SKEIN_CFG_TREE_INFO(leaf,node,maxLvl) \
+ ( (((u64b_t)(leaf )) << SKEIN_CFG_TREE_LEAF_SIZE_POS) | \
+ (((u64b_t)(node )) << SKEIN_CFG_TREE_NODE_SIZE_POS) | \
+ (((u64b_t)(maxLvl)) << SKEIN_CFG_TREE_MAX_LEVEL_POS) )
+
+#define SKEIN_CFG_TREE_INFO_SEQUENTIAL SKEIN_CFG_TREE_INFO(0,0,0) /* use as treeInfo in InitExt() call for sequential processing */
+
+/*
+** Skein macros for getting/setting tweak words, etc.
+** These are useful for partial input bytes, hash tree init/update, etc.
+**/
+#define Skein_Get_Tweak(ctxPtr,TWK_NUM) ((ctxPtr)->h.T[TWK_NUM])
+#define Skein_Set_Tweak(ctxPtr,TWK_NUM,tVal) {(ctxPtr)->h.T[TWK_NUM] = (tVal);}
+
+#define Skein_Get_T0(ctxPtr) Skein_Get_Tweak(ctxPtr,0)
+#define Skein_Get_T1(ctxPtr) Skein_Get_Tweak(ctxPtr,1)
+#define Skein_Set_T0(ctxPtr,T0) Skein_Set_Tweak(ctxPtr,0,T0)
+#define Skein_Set_T1(ctxPtr,T1) Skein_Set_Tweak(ctxPtr,1,T1)
+
+/* set both tweak words at once */
+#define Skein_Set_T0_T1(ctxPtr,T0,T1) \
+ { \
+ Skein_Set_T0(ctxPtr,(T0)); \
+ Skein_Set_T1(ctxPtr,(T1)); \
+ }
+
+#define Skein_Set_Type(ctxPtr,BLK_TYPE) \
+ Skein_Set_T1(ctxPtr,SKEIN_T1_BLK_TYPE_##BLK_TYPE)
+
+/* set up for starting with a new type: h.T[0]=0; h.T[1] = NEW_TYPE; h.bCnt=0; */
+#define Skein_Start_New_Type(ctxPtr,BLK_TYPE) \
+ { Skein_Set_T0_T1(ctxPtr,0,SKEIN_T1_FLAG_FIRST | SKEIN_T1_BLK_TYPE_##BLK_TYPE); (ctxPtr)->h.bCnt=0; }
+
+#define Skein_Clear_First_Flag(hdr) { (hdr).T[1] &= ~SKEIN_T1_FLAG_FIRST; }
+#define Skein_Set_Bit_Pad_Flag(hdr) { (hdr).T[1] |= SKEIN_T1_FLAG_BIT_PAD; }
+
+#define Skein_Set_Tree_Level(hdr,height) { (hdr).T[1] |= SKEIN_T1_TREE_LEVEL(height);}
+
+/*****************************************************************
+** "Internal" Skein definitions for debugging and error checking
+******************************************************************/
+#ifdef SKEIN_DEBUG /* examine/display intermediate values? */
+#include "skein_debug.h"
+#else /* default is no callouts */
+#define Skein_Show_Block(bits,ctx,X,blkPtr,wPtr,ksEvenPtr,ksOddPtr)
+#define Skein_Show_Round(bits,ctx,r,X)
+#define Skein_Show_R_Ptr(bits,ctx,r,X_ptr)
+#define Skein_Show_Final(bits,ctx,cnt,outPtr)
+#define Skein_Show_Key(bits,ctx,key,keyBytes)
+#endif
+
+#ifndef SKEIN_ERR_CHECK /* run-time checks (e.g., bad params, uninitialized context)? */
+#define Skein_Assert(x,retCode)/* default: ignore all Asserts, for performance */
+#define Skein_assert(x)
+#elif defined(SKEIN_ASSERT)
+#include <assert.h>
+#define Skein_Assert(x,retCode) assert(x)
+#define Skein_assert(x) assert(x)
+#else
+#include <assert.h>
+#define Skein_Assert(x,retCode) { if (!(x)) return retCode; } /* caller error */
+#define Skein_assert(x) assert(x) /* internal error */
+#endif
+
+/*****************************************************************
+** Skein block function constants (shared across Ref and Opt code)
+******************************************************************/
+enum
+ {
+ /* Skein_256 round rotation constants */
+ R_256_0_0=14, R_256_0_1=16,
+ R_256_1_0=52, R_256_1_1=57,
+ R_256_2_0=23, R_256_2_1=40,
+ R_256_3_0= 5, R_256_3_1=37,
+ R_256_4_0=25, R_256_4_1=33,
+ R_256_5_0=46, R_256_5_1=12,
+ R_256_6_0=58, R_256_6_1=22,
+ R_256_7_0=32, R_256_7_1=32,
+
+ /* Skein_512 round rotation constants */
+ R_512_0_0=46, R_512_0_1=36, R_512_0_2=19, R_512_0_3=37,
+ R_512_1_0=33, R_512_1_1=27, R_512_1_2=14, R_512_1_3=42,
+ R_512_2_0=17, R_512_2_1=49, R_512_2_2=36, R_512_2_3=39,
+ R_512_3_0=44, R_512_3_1= 9, R_512_3_2=54, R_512_3_3=56,
+ R_512_4_0=39, R_512_4_1=30, R_512_4_2=34, R_512_4_3=24,
+ R_512_5_0=13, R_512_5_1=50, R_512_5_2=10, R_512_5_3=17,
+ R_512_6_0=25, R_512_6_1=29, R_512_6_2=39, R_512_6_3=43,
+ R_512_7_0= 8, R_512_7_1=35, R_512_7_2=56, R_512_7_3=22,
+
+ /* Skein1024 round rotation constants */
+ R1024_0_0=24, R1024_0_1=13, R1024_0_2= 8, R1024_0_3=47, R1024_0_4= 8, R1024_0_5=17, R1024_0_6=22, R1024_0_7=37,
+ R1024_1_0=38, R1024_1_1=19, R1024_1_2=10, R1024_1_3=55, R1024_1_4=49, R1024_1_5=18, R1024_1_6=23, R1024_1_7=52,
+ R1024_2_0=33, R1024_2_1= 4, R1024_2_2=51, R1024_2_3=13, R1024_2_4=34, R1024_2_5=41, R1024_2_6=59, R1024_2_7=17,
+ R1024_3_0= 5, R1024_3_1=20, R1024_3_2=48, R1024_3_3=41, R1024_3_4=47, R1024_3_5=28, R1024_3_6=16, R1024_3_7=25,
+ R1024_4_0=41, R1024_4_1= 9, R1024_4_2=37, R1024_4_3=31, R1024_4_4=12, R1024_4_5=47, R1024_4_6=44, R1024_4_7=30,
+ R1024_5_0=16, R1024_5_1=34, R1024_5_2=56, R1024_5_3=51, R1024_5_4= 4, R1024_5_5=53, R1024_5_6=42, R1024_5_7=41,
+ R1024_6_0=31, R1024_6_1=44, R1024_6_2=47, R1024_6_3=46, R1024_6_4=19, R1024_6_5=42, R1024_6_6=44, R1024_6_7=25,
+ R1024_7_0= 9, R1024_7_1=48, R1024_7_2=35, R1024_7_3=52, R1024_7_4=23, R1024_7_5=31, R1024_7_6=37, R1024_7_7=20
+ };
+
+#ifndef SKEIN_ROUNDS
+#define SKEIN_256_ROUNDS_TOTAL (72) /* number of rounds for the different block sizes */
+#define SKEIN_512_ROUNDS_TOTAL (72)
+#define SKEIN1024_ROUNDS_TOTAL (80)
+#else /* allow command-line define in range 8*(5..14) */
+#define SKEIN_256_ROUNDS_TOTAL (8*((((SKEIN_ROUNDS/100) + 5) % 10) + 5))
+#define SKEIN_512_ROUNDS_TOTAL (8*((((SKEIN_ROUNDS/ 10) + 5) % 10) + 5))
+#define SKEIN1024_ROUNDS_TOTAL (8*((((SKEIN_ROUNDS ) + 5) % 10) + 5))
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ifndef _SKEIN_H_ */
--- /dev/null
+/*
+Copyright (c) 2010 Werner Dittmann
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+*/
+
+#ifndef SKEINAPI_H
+#define SKEINAPI_H
+
+/**
+ * @file skeinApi.h
+ * @brief A Skein API and its functions.
+ * @{
+ *
+ * This API and the functions that implement this API simplify the usage
+ * of Skein. The design and the way to use the functions follow the openSSL
+ * design but at the same time take care of some Skein specific behaviour
+ * and possibilities.
+ *
+ * The functions enable applications to create a normal Skein hashes and
+ * message authentication codes (MAC).
+ *
+ * Using these functions is simple and straight forward:
+ *
+ * @code
+ *
+ * #include <skeinApi.h>
+ *
+ * ...
+ * SkeinCtx_t ctx; // a Skein hash or MAC context
+ *
+ * // prepare context, here for a Skein with a state size of 512 bits.
+ * skeinCtxPrepare(&ctx, Skein512);
+ *
+ * // Initialize the context to set the requested hash length in bits
+ * // here request a output hash size of 31 bits (Skein supports variable
+ * // output sizes even very strange sizes)
+ * skeinInit(&ctx, 31);
+ *
+ * // Now update Skein with any number of message bits. A function that
+ * // takes a number of bytes is also available.
+ * skeinUpdateBits(&ctx, message, msgLength);
+ *
+ * // Now get the result of the Skein hash. The output buffer must be
+ * // large enough to hold the request number of output bits. The application
+ * // may now extract the bits.
+ * skeinFinal(&ctx, result);
+ * ...
+ * @endcode
+ *
+ * An application may use @c skeinReset to reset a Skein context and use
+ * it for creation of another hash with the same Skein state size and output
+ * bit length. In this case the API implementation restores some internal
+ * internal state data and saves a full Skein initialization round.
+ *
+ * To create a MAC the application just uses @c skeinMacInit instead of
+ * @c skeinInit. All other functions calls remain the same.
+ *
+ */
+
+#include <skein.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /**
+ * Which Skein size to use
+ */
+ typedef enum SkeinSize {
+ Skein256 = 256, /*!< Skein with 256 bit state */
+ Skein512 = 512, /*!< Skein with 512 bit state */
+ Skein1024 = 1024 /*!< Skein with 1024 bit state */
+ } SkeinSize_t;
+
+ /**
+ * Context for Skein.
+ *
+ * This structure was setup with some know-how of the internal
+ * Skein structures, in particular ordering of header and size dependent
+ * variables. If Skein implementation changes this, then adapt these
+ * structures as well.
+ */
+ typedef struct SkeinCtx {
+ u64b_t skeinSize;
+ u64b_t XSave[SKEIN_MAX_STATE_WORDS]; /* save area for state variables */
+ union {
+ Skein_Ctxt_Hdr_t h;
+ Skein_256_Ctxt_t s256;
+ Skein_512_Ctxt_t s512;
+ Skein1024_Ctxt_t s1024;
+ } m;
+ } SkeinCtx_t;
+
+ /**
+ * Prepare a Skein context.
+ *
+ * An application must call this function before it can use the Skein
+ * context. The functions clears memory and initializes size dependent
+ * variables.
+ *
+ * @param ctx
+ * Pointer to a Skein context.
+ * @param size
+ * Which Skein size to use.
+ * @return
+ * SKEIN_SUCESS of SKEIN_FAIL
+ */
+ int skeinCtxPrepare(SkeinCtx_t* ctx, SkeinSize_t size);
+
+ /**
+ * Initialize a Skein context.
+ *
+ * Initializes the context with this data and saves the resulting Skein
+ * state variables for further use.
+ *
+ * @param ctx
+ * Pointer to a Skein context.
+ * @param hashBitLen
+ * Number of MAC hash bits to compute
+ * @return
+ * SKEIN_SUCESS of SKEIN_FAIL
+ * @see skeinReset
+ */
+ int skeinInit(SkeinCtx_t* ctx, size_t hashBitLen);
+
+ /**
+ * Resets a Skein context for further use.
+ *
+ * Restores the saved chaining variables to reset the Skein context.
+ * Thus applications can reuse the same setup to process several
+ * messages. This saves a complete Skein initialization cycle.
+ *
+ * @param ctx
+ * Pointer to a pre-initialized Skein MAC context
+ */
+ void skeinReset(SkeinCtx_t* ctx);
+
+ /**
+ * Initializes a Skein context for MAC usage.
+ *
+ * Initializes the context with this data and saves the resulting Skein
+ * state variables for further use.
+ *
+ * Applications call the normal Skein functions to update the MAC and
+ * get the final result.
+ *
+ * @param ctx
+ * Pointer to an empty or preinitialized Skein MAC context
+ * @param key
+ * Pointer to key bytes or NULL
+ * @param keyLen
+ * Length of the key in bytes or zero
+ * @param hashBitLen
+ * Number of MAC hash bits to compute
+ * @return
+ * SKEIN_SUCESS of SKEIN_FAIL
+ */
+ int skeinMacInit(SkeinCtx_t* ctx, const uint8_t *key, size_t keyLen,
+ size_t hashBitLen);
+
+ /**
+ * Update Skein with the next part of the message.
+ *
+ * @param ctx
+ * Pointer to initialized Skein context
+ * @param msg
+ * Pointer to the message.
+ * @param msgByteCnt
+ * Length of the message in @b bytes
+ * @return
+ * Success or error code.
+ */
+ int skeinUpdate(SkeinCtx_t *ctx, const uint8_t *msg,
+ size_t msgByteCnt);
+
+ /**
+ * Update the hash with a message bit string.
+ *
+ * Skein can handle data not only as bytes but also as bit strings of
+ * arbitrary length (up to its maximum design size).
+ *
+ * @param ctx
+ * Pointer to initialized Skein context
+ * @param msg
+ * Pointer to the message.
+ * @param msgBitCnt
+ * Length of the message in @b bits.
+ */
+ int skeinUpdateBits(SkeinCtx_t *ctx, const uint8_t *msg,
+ size_t msgBitCnt);
+
+ /**
+ * Finalize Skein and return the hash.
+ *
+ * Before an application can reuse a Skein setup the application must
+ * reset the Skein context.
+ *
+ * @param ctx
+ * Pointer to initialized Skein context
+ * @param hash
+ * Pointer to buffer that receives the hash. The buffer must be large
+ * enough to store @c hashBitLen bits.
+ * @return
+ * Success or error code.
+ * @see skeinReset
+ */
+ int skeinFinal(SkeinCtx_t* ctx, uint8_t* hash);
+
+#ifdef __cplusplus
+}
+#endif
+
+/**
+ * @}
+ */
+#endif
git.openpandora.org / pandora-kernel.git / commitdiff