/* $Id: sph_haval.h 218 2010-06-08 17:06:34Z tp $ */ /** * HAVAL interface. * * HAVAL is actually a family of 15 hash functions, depending on whether * the internal computation uses 3, 4 or 5 passes, and on the output * length, which is 128, 160, 192, 224 or 256 bits. This implementation * provides interface functions for all 15, which internally map to * three cores (depending on the number of passes). Note that output * lengths other than 256 bits are not obtained by a simple truncation * of a longer result; the requested length is encoded within the * padding data. * * HAVAL was published in: Yuliang Zheng, Josef Pieprzyk and Jennifer * Seberry: "HAVAL -- a one-way hashing algorithm with variable length * of output", Advances in Cryptology -- AUSCRYPT'92, Lecture Notes in * Computer Science, Vol.718, pp.83-104, Springer-Verlag, 1993. * * This paper, and a reference implementation, are available on the * Calyptix web site: http://labs.calyptix.com/haval.php * * The HAVAL reference paper is quite unclear on the data encoding * details, i.e. endianness (both byte order within a 32-bit word, and * word order within a message block). This implementation has been * made compatible with the reference implementation referenced above. * * @warning A collision for HAVAL-128/3 (HAVAL with three passes and * 128-bit output) has been published; this function is thus considered * as cryptographically broken. The status for other variants is unclear; * use only with care. * * ==========================(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_haval.h * @author Thomas Pornin */ #ifndef SPH_HAVAL_H__ #define SPH_HAVAL_H__ #ifdef __cplusplus extern "C"{ #endif #include #include "sph_types.h" /** * Output size (in bits) for HAVAL-128/3. */ #define SPH_SIZE_haval128_3 128 /** * Output size (in bits) for HAVAL-128/4. */ #define SPH_SIZE_haval128_4 128 /** * Output size (in bits) for HAVAL-128/5. */ #define SPH_SIZE_haval128_5 128 /** * Output size (in bits) for HAVAL-160/3. */ #define SPH_SIZE_haval160_3 160 /** * Output size (in bits) for HAVAL-160/4. */ #define SPH_SIZE_haval160_4 160 /** * Output size (in bits) for HAVAL-160/5. */ #define SPH_SIZE_haval160_5 160 /** * Output size (in bits) for HAVAL-192/3. */ #define SPH_SIZE_haval192_3 192 /** * Output size (in bits) for HAVAL-192/4. */ #define SPH_SIZE_haval192_4 192 /** * Output size (in bits) for HAVAL-192/5. */ #define SPH_SIZE_haval192_5 192 /** * Output size (in bits) for HAVAL-224/3. */ #define SPH_SIZE_haval224_3 224 /** * Output size (in bits) for HAVAL-224/4. */ #define SPH_SIZE_haval224_4 224 /** * Output size (in bits) for HAVAL-224/5. */ #define SPH_SIZE_haval224_5 224 /** * Output size (in bits) for HAVAL-256/3. */ #define SPH_SIZE_haval256_3 256 /** * Output size (in bits) for HAVAL-256/4. */ #define SPH_SIZE_haval256_4 256 /** * Output size (in bits) for HAVAL-256/5. */ #define SPH_SIZE_haval256_5 256 /** * This structure is a context for HAVAL computations: it contains the * intermediate values and some data from the last entered block. Once * a HAVAL computation has been performed, the context can be reused for * another computation. * * The contents of this structure are private. A running HAVAL computation * can be cloned by copying the context (e.g. with a simple * memcpy()). */ typedef struct { #ifndef DOXYGEN_IGNORE unsigned char buf[128]; /* first field, for alignment */ sph_u32 s0, s1, s2, s3, s4, s5, s6, s7; unsigned olen, passes; #if SPH_64 sph_u64 count; #else sph_u32 count_high, count_low; #endif #endif } sph_haval_context; /** * Type for a HAVAL-128/3 context (identical to the common context). */ typedef sph_haval_context sph_haval128_3_context; /** * Type for a HAVAL-128/4 context (identical to the common context). */ typedef sph_haval_context sph_haval128_4_context; /** * Type for a HAVAL-128/5 context (identical to the common context). */ typedef sph_haval_context sph_haval128_5_context; /** * Type for a HAVAL-160/3 context (identical to the common context). */ typedef sph_haval_context sph_haval160_3_context; /** * Type for a HAVAL-160/4 context (identical to the common context). */ typedef sph_haval_context sph_haval160_4_context; /** * Type for a HAVAL-160/5 context (identical to the common context). */ typedef sph_haval_context sph_haval160_5_context; /** * Type for a HAVAL-192/3 context (identical to the common context). */ typedef sph_haval_context sph_haval192_3_context; /** * Type for a HAVAL-192/4 context (identical to the common context). */ typedef sph_haval_context sph_haval192_4_context; /** * Type for a HAVAL-192/5 context (identical to the common context). */ typedef sph_haval_context sph_haval192_5_context; /** * Type for a HAVAL-224/3 context (identical to the common context). */ typedef sph_haval_context sph_haval224_3_context; /** * Type for a HAVAL-224/4 context (identical to the common context). */ typedef sph_haval_context sph_haval224_4_context; /** * Type for a HAVAL-224/5 context (identical to the common context). */ typedef sph_haval_context sph_haval224_5_context; /** * Type for a HAVAL-256/3 context (identical to the common context). */ typedef sph_haval_context sph_haval256_3_context; /** * Type for a HAVAL-256/4 context (identical to the common context). */ typedef sph_haval_context sph_haval256_4_context; /** * Type for a HAVAL-256/5 context (identical to the common context). */ typedef sph_haval_context sph_haval256_5_context; /** * Initialize the context for HAVAL-128/3. * * @param cc context to initialize (pointer to a * sph_haval128_3_context structure) */ void sph_haval128_3_init(void *cc); /** * Process some data bytes for HAVAL-128/3. If len is 0, * then this function does nothing. * * @param cc the HAVAL-128/3 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval128_3(void *cc, const void *data, size_t len); /** * Close a HAVAL-128/3 computation. The output buffer must be wide * enough to accomodate the result (16 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-128/3 context * @param dst the output buffer */ void sph_haval128_3_close(void *cc, void *dst); /** * Close a HAVAL-128/3 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (16 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-128/3 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval128_3_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Initialize the context for HAVAL-128/4. * * @param cc context to initialize (pointer to a * sph_haval128_4_context structure) */ void sph_haval128_4_init(void *cc); /** * Process some data bytes for HAVAL-128/4. If len is 0, * then this function does nothing. * * @param cc the HAVAL-128/4 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval128_4(void *cc, const void *data, size_t len); /** * Close a HAVAL-128/4 computation. The output buffer must be wide * enough to accomodate the result (16 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-128/4 context * @param dst the output buffer */ void sph_haval128_4_close(void *cc, void *dst); /** * Close a HAVAL-128/4 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (16 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-128/4 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval128_4_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Initialize the context for HAVAL-128/5. * * @param cc context to initialize (pointer to a * sph_haval128_5_context structure) */ void sph_haval128_5_init(void *cc); /** * Process some data bytes for HAVAL-128/5. If len is 0, * then this function does nothing. * * @param cc the HAVAL-128/5 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval128_5(void *cc, const void *data, size_t len); /** * Close a HAVAL-128/5 computation. The output buffer must be wide * enough to accomodate the result (16 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-128/5 context * @param dst the output buffer */ void sph_haval128_5_close(void *cc, void *dst); /** * Close a HAVAL-128/5 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (16 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-128/5 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval128_5_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Initialize the context for HAVAL-160/3. * * @param cc context to initialize (pointer to a * sph_haval160_3_context structure) */ void sph_haval160_3_init(void *cc); /** * Process some data bytes for HAVAL-160/3. If len is 0, * then this function does nothing. * * @param cc the HAVAL-160/3 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval160_3(void *cc, const void *data, size_t len); /** * Close a HAVAL-160/3 computation. The output buffer must be wide * enough to accomodate the result (20 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-160/3 context * @param dst the output buffer */ void sph_haval160_3_close(void *cc, void *dst); /** * Close a HAVAL-160/3 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (20 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-160/3 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval160_3_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Initialize the context for HAVAL-160/4. * * @param cc context to initialize (pointer to a * sph_haval160_4_context structure) */ void sph_haval160_4_init(void *cc); /** * Process some data bytes for HAVAL-160/4. If len is 0, * then this function does nothing. * * @param cc the HAVAL-160/4 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval160_4(void *cc, const void *data, size_t len); /** * Close a HAVAL-160/4 computation. The output buffer must be wide * enough to accomodate the result (20 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-160/4 context * @param dst the output buffer */ void sph_haval160_4_close(void *cc, void *dst); /** * Close a HAVAL-160/4 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (20 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-160/4 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval160_3_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Initialize the context for HAVAL-160/5. * * @param cc context to initialize (pointer to a * sph_haval160_5_context structure) */ void sph_haval160_5_init(void *cc); /** * Process some data bytes for HAVAL-160/5. If len is 0, * then this function does nothing. * * @param cc the HAVAL-160/5 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval160_5(void *cc, const void *data, size_t len); /** * Close a HAVAL-160/5 computation. The output buffer must be wide * enough to accomodate the result (20 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-160/5 context * @param dst the output buffer */ void sph_haval160_5_close(void *cc, void *dst); /** * Close a HAVAL-160/5 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (20 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-160/5 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval160_5_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Initialize the context for HAVAL-192/3. * * @param cc context to initialize (pointer to a * sph_haval192_3_context structure) */ void sph_haval192_3_init(void *cc); /** * Process some data bytes for HAVAL-192/3. If len is 0, * then this function does nothing. * * @param cc the HAVAL-192/3 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval192_3(void *cc, const void *data, size_t len); /** * Close a HAVAL-192/3 computation. The output buffer must be wide * enough to accomodate the result (24 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-192/3 context * @param dst the output buffer */ void sph_haval192_3_close(void *cc, void *dst); /** * Close a HAVAL-192/3 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (24 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-192/3 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval192_3_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Initialize the context for HAVAL-192/4. * * @param cc context to initialize (pointer to a * sph_haval192_4_context structure) */ void sph_haval192_4_init(void *cc); /** * Process some data bytes for HAVAL-192/4. If len is 0, * then this function does nothing. * * @param cc the HAVAL-192/4 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval192_4(void *cc, const void *data, size_t len); /** * Close a HAVAL-192/4 computation. The output buffer must be wide * enough to accomodate the result (24 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-192/4 context * @param dst the output buffer */ void sph_haval192_4_close(void *cc, void *dst); /** * Close a HAVAL-192/4 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (24 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-192/4 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval192_4_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Initialize the context for HAVAL-192/5. * * @param cc context to initialize (pointer to a * sph_haval192_5_context structure) */ void sph_haval192_5_init(void *cc); /** * Process some data bytes for HAVAL-192/5. If len is 0, * then this function does nothing. * * @param cc the HAVAL-192/5 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval192_5(void *cc, const void *data, size_t len); /** * Close a HAVAL-192/5 computation. The output buffer must be wide * enough to accomodate the result (24 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-192/5 context * @param dst the output buffer */ void sph_haval192_5_close(void *cc, void *dst); /** * Close a HAVAL-192/5 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (24 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-192/5 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval192_5_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Initialize the context for HAVAL-224/3. * * @param cc context to initialize (pointer to a * sph_haval224_3_context structure) */ void sph_haval224_3_init(void *cc); /** * Process some data bytes for HAVAL-224/3. If len is 0, * then this function does nothing. * * @param cc the HAVAL-224/3 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval224_3(void *cc, const void *data, size_t len); /** * Close a HAVAL-224/3 computation. The output buffer must be wide * enough to accomodate the result (28 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-224/3 context * @param dst the output buffer */ void sph_haval224_3_close(void *cc, void *dst); /** * Close a HAVAL-224/3 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (28 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-224/3 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval224_3_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Initialize the context for HAVAL-224/4. * * @param cc context to initialize (pointer to a * sph_haval224_4_context structure) */ void sph_haval224_4_init(void *cc); /** * Process some data bytes for HAVAL-224/4. If len is 0, * then this function does nothing. * * @param cc the HAVAL-224/4 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval224_4(void *cc, const void *data, size_t len); /** * Close a HAVAL-224/4 computation. The output buffer must be wide * enough to accomodate the result (28 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-224/4 context * @param dst the output buffer */ void sph_haval224_4_close(void *cc, void *dst); /** * Close a HAVAL-224/4 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (28 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-224/4 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval224_4_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Initialize the context for HAVAL-224/5. * * @param cc context to initialize (pointer to a * sph_haval224_5_context structure) */ void sph_haval224_5_init(void *cc); /** * Process some data bytes for HAVAL-224/5. If len is 0, * then this function does nothing. * * @param cc the HAVAL-224/5 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval224_5(void *cc, const void *data, size_t len); /** * Close a HAVAL-224/5 computation. The output buffer must be wide * enough to accomodate the result (28 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-224/5 context * @param dst the output buffer */ void sph_haval224_5_close(void *cc, void *dst); /** * Close a HAVAL-224/5 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (28 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-224/5 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval224_5_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Initialize the context for HAVAL-256/3. * * @param cc context to initialize (pointer to a * sph_haval256_3_context structure) */ void sph_haval256_3_init(void *cc); /** * Process some data bytes for HAVAL-256/3. If len is 0, * then this function does nothing. * * @param cc the HAVAL-256/3 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval256_3(void *cc, const void *data, size_t len); /** * Close a HAVAL-256/3 computation. The output buffer must be wide * enough to accomodate the result (32 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-256/3 context * @param dst the output buffer */ void sph_haval256_3_close(void *cc, void *dst); /** * Close a HAVAL-256/3 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (32 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-256/3 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval256_3_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Initialize the context for HAVAL-256/4. * * @param cc context to initialize (pointer to a * sph_haval256_4_context structure) */ void sph_haval256_4_init(void *cc); /** * Process some data bytes for HAVAL-256/4. If len is 0, * then this function does nothing. * * @param cc the HAVAL-256/4 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval256_4(void *cc, const void *data, size_t len); /** * Close a HAVAL-256/4 computation. The output buffer must be wide * enough to accomodate the result (32 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-256/4 context * @param dst the output buffer */ void sph_haval256_4_close(void *cc, void *dst); /** * Close a HAVAL-256/4 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (32 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-256/4 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval256_4_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Initialize the context for HAVAL-256/5. * * @param cc context to initialize (pointer to a * sph_haval256_5_context structure) */ void sph_haval256_5_init(void *cc); /** * Process some data bytes for HAVAL-256/5. If len is 0, * then this function does nothing. * * @param cc the HAVAL-256/5 context * @param data the input data * @param len the input data length (in bytes) */ void sph_haval256_5(void *cc, const void *data, size_t len); /** * Close a HAVAL-256/5 computation. The output buffer must be wide * enough to accomodate the result (32 bytes). The context is automatically * reinitialized. * * @param cc the HAVAL-256/5 context * @param dst the output buffer */ void sph_haval256_5_close(void *cc, void *dst); /** * Close a HAVAL-256/5 computation. Up to 7 extra input bits may be added * to the input message; these are the n upper bits of * the ub byte (i.e. the first extra bit has value 128 in * ub, the second extra bit has value 64, and so on). Other * bits in ub are ignored. * * The output buffer must be wide enough to accomodate the result (32 * bytes). The context is automatically reinitialized. * * @param cc the HAVAL-256/5 context * @param ub the extra bits * @param n the number of extra bits (0 to 7) * @param dst the output buffer */ void sph_haval256_5_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst); /** * Apply the HAVAL compression function on the provided data. The * msg parameter contains the 32 32-bit input blocks, * as numerical values (hence after the little-endian decoding). The * val parameter contains the 8 32-bit input blocks for * the compression function; the output is written in place in this * array. This function uses three internal passes. * * @param msg the message block (32 values) * @param val the function 256-bit input and output */ void sph_haval_3_comp(const sph_u32 msg[32], sph_u32 val[8]); /** * Apply the HAVAL compression function on the provided data. The * msg parameter contains the 32 32-bit input blocks, * as numerical values (hence after the little-endian decoding). The * val parameter contains the 8 32-bit input blocks for * the compression function; the output is written in place in this * array. This function uses four internal passes. * * @param msg the message block (32 values) * @param val the function 256-bit input and output */ void sph_haval_4_comp(const sph_u32 msg[32], sph_u32 val[8]); /** * Apply the HAVAL compression function on the provided data. The * msg parameter contains the 32 32-bit input blocks, * as numerical values (hence after the little-endian decoding). The * val parameter contains the 8 32-bit input blocks for * the compression function; the output is written in place in this * array. This function uses five internal passes. * * @param msg the message block (32 values) * @param val the function 256-bit input and output */ void sph_haval_5_comp(const sph_u32 msg[32], sph_u32 val[8]); #ifdef __cplusplus } #endif #endif