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Shabal header

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aznboy84 11 years ago committed by ystarnaud
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      sph/sph_shabal.h

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sph/sph_shabal.h
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/* $Id: sph_shabal.h 175 2010-05-07 16:03:20Z tp $ */
/**
* Shabal interface. Shabal is a family of functions which differ by
* their output size; this implementation defines Shabal for output
* sizes 192, 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)=============================
*
* @file sph_shabal.h
* @author Thomas Pornin <thomas.pornin@cryptolog.com>
*/
#ifndef SPH_SHABAL_H__
#define SPH_SHABAL_H__
#include <stddef.h>
#include "sph_types.h"
#ifdef __cplusplus
extern "C"{
#endif
/**
* Output size (in bits) for Shabal-192.
*/
#define SPH_SIZE_shabal192 192
/**
* Output size (in bits) for Shabal-224.
*/
#define SPH_SIZE_shabal224 224
/**
* Output size (in bits) for Shabal-256.
*/
#define SPH_SIZE_shabal256 256
/**
* Output size (in bits) for Shabal-384.
*/
#define SPH_SIZE_shabal384 384
/**
* Output size (in bits) for Shabal-512.
*/
#define SPH_SIZE_shabal512 512
/**
* This structure is a context for Shabal computations: it contains the
* intermediate values and some data from the last entered block. Once
* a Shabal computation has been performed, the context can be reused for
* another computation.
*
* The contents of this structure are private. A running Shabal computation
* can be cloned by copying the context (e.g. with a simple
* <code>memcpy()</code>).
*/
typedef struct {
#ifndef DOXYGEN_IGNORE
unsigned char buf[64]; /* first field, for alignment */
size_t ptr;
sph_u32 A[12], B[16], C[16];
sph_u32 Whigh, Wlow;
#endif
} sph_shabal_context;
/**
* Type for a Shabal-192 context (identical to the common context).
*/
typedef sph_shabal_context sph_shabal192_context;
/**
* Type for a Shabal-224 context (identical to the common context).
*/
typedef sph_shabal_context sph_shabal224_context;
/**
* Type for a Shabal-256 context (identical to the common context).
*/
typedef sph_shabal_context sph_shabal256_context;
/**
* Type for a Shabal-384 context (identical to the common context).
*/
typedef sph_shabal_context sph_shabal384_context;
/**
* Type for a Shabal-512 context (identical to the common context).
*/
typedef sph_shabal_context sph_shabal512_context;
/**
* Initialize a Shabal-192 context. This process performs no memory allocation.
*
* @param cc the Shabal-192 context (pointer to a
* <code>sph_shabal192_context</code>)
*/
void sph_shabal192_init(void *cc);
/**
* Process some data bytes. It is acceptable that <code>len</code> is zero
* (in which case this function does nothing).
*
* @param cc the Shabal-192 context
* @param data the input data
* @param len the input data length (in bytes)
*/
void sph_shabal192(void *cc, const void *data, size_t len);
/**
* Terminate the current Shabal-192 computation and output the result into
* the provided buffer. The destination buffer must be wide enough to
* accomodate the result (24 bytes). The context is automatically
* reinitialized.
*
* @param cc the Shabal-192 context
* @param dst the destination buffer
*/
void sph_shabal192_close(void *cc, 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 (24 bytes). If bit number i
* in <code>ub</code> 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.
*
* @param cc the Shabal-192 context
* @param ub the extra bits
* @param n the number of extra bits (0 to 7)
* @param dst the destination buffer
*/
void sph_shabal192_addbits_and_close(
void *cc, unsigned ub, unsigned n, void *dst);
/**
* Initialize a Shabal-224 context. This process performs no memory allocation.
*
* @param cc the Shabal-224 context (pointer to a
* <code>sph_shabal224_context</code>)
*/
void sph_shabal224_init(void *cc);
/**
* Process some data bytes. It is acceptable that <code>len</code> is zero
* (in which case this function does nothing).
*
* @param cc the Shabal-224 context
* @param data the input data
* @param len the input data length (in bytes)
*/
void sph_shabal224(void *cc, const void *data, size_t len);
/**
* Terminate the current Shabal-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.
*
* @param cc the Shabal-224 context
* @param dst the destination buffer
*/
void sph_shabal224_close(void *cc, 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 <code>ub</code> 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.
*
* @param cc the Shabal-224 context
* @param ub the extra bits
* @param n the number of extra bits (0 to 7)
* @param dst the destination buffer
*/
void sph_shabal224_addbits_and_close(
void *cc, unsigned ub, unsigned n, void *dst);
/**
* Initialize a Shabal-256 context. This process performs no memory allocation.
*
* @param cc the Shabal-256 context (pointer to a
* <code>sph_shabal256_context</code>)
*/
void sph_shabal256_init(void *cc);
/**
* Process some data bytes. It is acceptable that <code>len</code> is zero
* (in which case this function does nothing).
*
* @param cc the Shabal-256 context
* @param data the input data
* @param len the input data length (in bytes)
*/
void sph_shabal256(void *cc, const void *data, size_t len);
/**
* Terminate the current Shabal-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.
*
* @param cc the Shabal-256 context
* @param dst the destination buffer
*/
void sph_shabal256_close(void *cc, 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 <code>ub</code> 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.
*
* @param cc the Shabal-256 context
* @param ub the extra bits
* @param n the number of extra bits (0 to 7)
* @param dst the destination buffer
*/
void sph_shabal256_addbits_and_close(
void *cc, unsigned ub, unsigned n, void *dst);
/**
* Initialize a Shabal-384 context. This process performs no memory allocation.
*
* @param cc the Shabal-384 context (pointer to a
* <code>sph_shabal384_context</code>)
*/
void sph_shabal384_init(void *cc);
/**
* Process some data bytes. It is acceptable that <code>len</code> is zero
* (in which case this function does nothing).
*
* @param cc the Shabal-384 context
* @param data the input data
* @param len the input data length (in bytes)
*/
void sph_shabal384(void *cc, const void *data, size_t len);
/**
* Terminate the current Shabal-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.
*
* @param cc the Shabal-384 context
* @param dst the destination buffer
*/
void sph_shabal384_close(void *cc, 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 <code>ub</code> 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.
*
* @param cc the Shabal-384 context
* @param ub the extra bits
* @param n the number of extra bits (0 to 7)
* @param dst the destination buffer
*/
void sph_shabal384_addbits_and_close(
void *cc, unsigned ub, unsigned n, void *dst);
/**
* Initialize a Shabal-512 context. This process performs no memory allocation.
*
* @param cc the Shabal-512 context (pointer to a
* <code>sph_shabal512_context</code>)
*/
void sph_shabal512_init(void *cc);
/**
* Process some data bytes. It is acceptable that <code>len</code> is zero
* (in which case this function does nothing).
*
* @param cc the Shabal-512 context
* @param data the input data
* @param len the input data length (in bytes)
*/
void sph_shabal512(void *cc, const void *data, size_t len);
/**
* Terminate the current Shabal-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.
*
* @param cc the Shabal-512 context
* @param dst the destination buffer
*/
void sph_shabal512_close(void *cc, 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 <code>ub</code> 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.
*
* @param cc the Shabal-512 context
* @param ub the extra bits
* @param n the number of extra bits (0 to 7)
* @param dst the destination buffer
*/
void sph_shabal512_addbits_and_close(
void *cc, unsigned ub, unsigned n, void *dst);
#ifdef __cplusplus
}
#endif
#endif
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