sph_simd.h File Reference

SIMD interface. More...

#include <stddef.h>
#include <crypto/sph_types.h>

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Classes
struct	sph_simd_small_context
	This structure is a context for SIMD computations: it contains the intermediate values and some data from the last entered block. More...
struct	sph_simd_big_context
	This structure is a context for SIMD computations: it contains the intermediate values and some data from the last entered block. More...

Macros
#define	SPH_SIZE_simd224   224
	Output size (in bits) for SIMD-224. More...
#define	SPH_SIZE_simd256   256
	Output size (in bits) for SIMD-256. More...
#define	SPH_SIZE_simd384   384
	Output size (in bits) for SIMD-384. More...
#define	SPH_SIZE_simd512   512
	Output size (in bits) for SIMD-512. More...

Typedefs
typedef sph_simd_small_context	sph_simd224_context
	Type for a SIMD-224 context (identical to the common "small" context). More...
typedef sph_simd_small_context	sph_simd256_context
	Type for a SIMD-256 context (identical to the common "small" context). More...
typedef sph_simd_big_context	sph_simd384_context
	Type for a SIMD-384 context (identical to the common "big" context). More...
typedef sph_simd_big_context	sph_simd512_context
	Type for a SIMD-512 context (identical to the common "big" context). More...

Functions
void	sph_simd224_init (void *cc)
	Initialize an SIMD-224 context. More...
void	sph_simd224 (void *cc, const void *data, size_t len)
	Process some data bytes. More...
void	sph_simd224_close (void *cc, void *dst)
	Terminate the current SIMD-224 computation and output the result into the provided buffer. More...
void	sph_simd224_addbits_and_close (void *cc, unsigned ub, unsigned n, void *dst)
	Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (28 bytes). More...
void	sph_simd256_init (void *cc)
	Initialize an SIMD-256 context. More...
void	sph_simd256 (void *cc, const void *data, size_t len)
	Process some data bytes. More...
void	sph_simd256_close (void *cc, void *dst)
	Terminate the current SIMD-256 computation and output the result into the provided buffer. More...
void	sph_simd256_addbits_and_close (void *cc, unsigned ub, unsigned n, void *dst)
	Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (32 bytes). More...
void	sph_simd384_init (void *cc)
	Initialize an SIMD-384 context. More...
void	sph_simd384 (void *cc, const void *data, size_t len)
	Process some data bytes. More...
void	sph_simd384_close (void *cc, void *dst)
	Terminate the current SIMD-384 computation and output the result into the provided buffer. More...
void	sph_simd384_addbits_and_close (void *cc, unsigned ub, unsigned n, void *dst)
	Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (48 bytes). More...
void	sph_simd512_init (void *cc)
	Initialize an SIMD-512 context. More...
void	sph_simd512 (void *cc, const void *data, size_t len)
	Process some data bytes. More...
void	sph_simd512_close (void *cc, void *dst)
	Terminate the current SIMD-512 computation and output the result into the provided buffer. More...
void	sph_simd512_addbits_and_close (void *cc, unsigned ub, unsigned n, void *dst)
	Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (64 bytes). More...

Detailed Description

SIMD interface.

SIMD is a family of functions which differ by their output size; this implementation defines SIMD for output sizes 224, 256, 384 and 512 bits.

==========================(LICENSE BEGIN)============================

Copyright (c) 2007-2010 Projet RNRT SAPHIR

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.

===========================(LICENSE END)=============================

Author

Thomas Pornin thoma.nosp@m.s.po.nosp@m.rnin@.nosp@m.cryp.nosp@m.tolog.nosp@m..com

Definition in file sph_simd.h.

Macro Definition Documentation

SPH_SIZE_simd224

#define SPH_SIZE_simd224   224

Output size (in bits) for SIMD-224.

Definition at line 49 of file sph_simd.h.

SPH_SIZE_simd256

#define SPH_SIZE_simd256   256

Output size (in bits) for SIMD-256.

Definition at line 54 of file sph_simd.h.

SPH_SIZE_simd384

#define SPH_SIZE_simd384   384

Output size (in bits) for SIMD-384.

Definition at line 59 of file sph_simd.h.

SPH_SIZE_simd512

#define SPH_SIZE_simd512   512

Output size (in bits) for SIMD-512.

Definition at line 64 of file sph_simd.h.

Typedef Documentation

sph_simd224_context

typedef sph_simd_small_context sph_simd224_context

Type for a SIMD-224 context (identical to the common "small" context).

Definition at line 109 of file sph_simd.h.

sph_simd256_context

typedef sph_simd_small_context sph_simd256_context

Type for a SIMD-256 context (identical to the common "small" context).

Definition at line 114 of file sph_simd.h.

sph_simd384_context

typedef sph_simd_big_context sph_simd384_context

Type for a SIMD-384 context (identical to the common "big" context).

Definition at line 119 of file sph_simd.h.

sph_simd512_context

typedef sph_simd_big_context sph_simd512_context

Type for a SIMD-512 context (identical to the common "big" context).

Definition at line 124 of file sph_simd.h.

Function Documentation

sph_simd224()

void sph_simd224	(	void *	cc,
		const void *	data,
		size_t	len
	)

Process some data bytes.

It is acceptable that len is zero (in which case this function does nothing).

Parameters

cc	the SIMD-224 context
data	the input data
len	the input data length (in bytes)

Definition at line 1705 of file simd.c.

References update_small().

sph_simd224_addbits_and_close()

void sph_simd224_addbits_and_close	(	void *	cc,
		unsigned	ub,
		unsigned	n,
		void *	dst
	)

Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (28 bytes).

If bit number i in ub has value 2^i, then the extra bits are those numbered 7 downto 8-n (this is the big-endian convention at the byte level). The context is automatically reinitialized.

Parameters

cc	the SIMD-224 context
ub	the extra bits
n	the number of extra bits (0 to 7)
dst	the destination buffer

Definition at line 1717 of file simd.c.

References finalize_small(), and sph_simd224_init().

Referenced by sph_simd224_close().

sph_simd224_close()

void sph_simd224_close	(	void *	cc,
		void *	dst
	)

Terminate the current SIMD-224 computation and output the result into the provided buffer.

The destination buffer must be wide enough to accomodate the result (28 bytes). The context is automatically reinitialized.

Parameters

cc	the SIMD-224 context
dst	the destination buffer

Definition at line 1711 of file simd.c.

References sph_simd224_addbits_and_close().

sph_simd224_init()

void sph_simd224_init

(

void *

cc

)

Initialize an SIMD-224 context.

This process performs no memory allocation.

Parameters

cc	the SIMD-224 context (pointer to a sph_simd224_context)

Definition at line 1699 of file simd.c.

References init_small(), and IV224.

Referenced by sph_simd224_addbits_and_close().

sph_simd256()

void sph_simd256	(	void *	cc,
		const void *	data,
		size_t	len
	)

Process some data bytes.

It is acceptable that len is zero (in which case this function does nothing).

Parameters

cc	the SIMD-256 context
data	the input data
len	the input data length (in bytes)

Definition at line 1730 of file simd.c.

References update_small().

sph_simd256_addbits_and_close()

void sph_simd256_addbits_and_close	(	void *	cc,
		unsigned	ub,
		unsigned	n,
		void *	dst
	)

Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (32 bytes).

If bit number i in ub has value 2^i, then the extra bits are those numbered 7 downto 8-n (this is the big-endian convention at the byte level). The context is automatically reinitialized.

Parameters

cc	the SIMD-256 context
ub	the extra bits
n	the number of extra bits (0 to 7)
dst	the destination buffer

Definition at line 1742 of file simd.c.

References finalize_small(), and sph_simd256_init().

Referenced by sph_simd256_close().

sph_simd256_close()

void sph_simd256_close	(	void *	cc,
		void *	dst
	)

Terminate the current SIMD-256 computation and output the result into the provided buffer.

The destination buffer must be wide enough to accomodate the result (32 bytes). The context is automatically reinitialized.

Parameters

cc	the SIMD-256 context
dst	the destination buffer

Definition at line 1736 of file simd.c.

References sph_simd256_addbits_and_close().

sph_simd256_init()

void sph_simd256_init

(

void *

cc

)

Initialize an SIMD-256 context.

This process performs no memory allocation.

Parameters

cc	the SIMD-256 context (pointer to a sph_simd256_context)

Definition at line 1724 of file simd.c.

References init_small(), and IV256.

Referenced by sph_simd256_addbits_and_close().

sph_simd384()

void sph_simd384	(	void *	cc,
		const void *	data,
		size_t	len
	)

Process some data bytes.

It is acceptable that len is zero (in which case this function does nothing).

Parameters

cc	the SIMD-384 context
data	the input data
len	the input data length (in bytes)

Definition at line 1755 of file simd.c.

References update_big().

sph_simd384_addbits_and_close()

void sph_simd384_addbits_and_close	(	void *	cc,
		unsigned	ub,
		unsigned	n,
		void *	dst
	)

Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (48 bytes).

If bit number i in ub has value 2^i, then the extra bits are those numbered 7 downto 8-n (this is the big-endian convention at the byte level). The context is automatically reinitialized.

Parameters

cc	the SIMD-384 context
ub	the extra bits
n	the number of extra bits (0 to 7)
dst	the destination buffer

Definition at line 1767 of file simd.c.

References finalize_big(), and sph_simd384_init().

Referenced by sph_simd384_close().

sph_simd384_close()

void sph_simd384_close	(	void *	cc,
		void *	dst
	)

Terminate the current SIMD-384 computation and output the result into the provided buffer.

The destination buffer must be wide enough to accomodate the result (48 bytes). The context is automatically reinitialized.

Parameters

cc	the SIMD-384 context
dst	the destination buffer

Definition at line 1761 of file simd.c.

References sph_simd384_addbits_and_close().

sph_simd384_init()

void sph_simd384_init

(

void *

cc

)

Initialize an SIMD-384 context.

This process performs no memory allocation.

Parameters

cc	the SIMD-384 context (pointer to a sph_simd384_context)

Definition at line 1749 of file simd.c.

References init_big(), and IV384.

Referenced by sph_simd384_addbits_and_close().

sph_simd512()

void sph_simd512	(	void *	cc,
		const void *	data,
		size_t	len
	)

Process some data bytes.

It is acceptable that len is zero (in which case this function does nothing).

Parameters

cc	the SIMD-512 context
data	the input data
len	the input data length (in bytes)

Definition at line 1780 of file simd.c.

References update_big().

Referenced by HashX11().

sph_simd512_addbits_and_close()

void sph_simd512_addbits_and_close	(	void *	cc,
		unsigned	ub,
		unsigned	n,
		void *	dst
	)

Add a few additional bits (0 to 7) to the current computation, then terminate it and output the result in the provided buffer, which must be wide enough to accomodate the result (64 bytes).

If bit number i in ub has value 2^i, then the extra bits are those numbered 7 downto 8-n (this is the big-endian convention at the byte level). The context is automatically reinitialized.

Parameters

cc	the SIMD-512 context
ub	the extra bits
n	the number of extra bits (0 to 7)
dst	the destination buffer

Definition at line 1792 of file simd.c.

References finalize_big(), and sph_simd512_init().

Referenced by sph_simd512_close().

sph_simd512_close()

void sph_simd512_close	(	void *	cc,
		void *	dst
	)

Terminate the current SIMD-512 computation and output the result into the provided buffer.

The destination buffer must be wide enough to accomodate the result (64 bytes). The context is automatically reinitialized.

Parameters

cc	the SIMD-512 context
dst	the destination buffer

Definition at line 1786 of file simd.c.

References sph_simd512_addbits_and_close().

Referenced by HashX11().

sph_simd512_init()

void sph_simd512_init

(

void *

cc

)

Initialize an SIMD-512 context.

This process performs no memory allocation.

Parameters

cc	the SIMD-512 context (pointer to a sph_simd512_context)

Definition at line 1774 of file simd.c.

References init_big(), and IV512.

Referenced by HashX11(), and sph_simd512_addbits_and_close().