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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. **********************************************************************/ #ifndef _SHA256_MB_H_ #define _SHA256_MB_H_ /** * @file sha256_mb.h * @brief Multi-buffer CTX API SHA256 function prototypes and structures * * Interface for multi-buffer SHA256 functions * * Multi-buffer SHA256 Entire or First-Update..Update-Last * * The interface to this multi-buffer hashing code is carried out through the * context-level (CTX) init, submit and flush functions and the SHA256_HASH_CTX_MGR and * SHA256_HASH_CTX objects. Numerous SHA256_HASH_CTX objects may be instantiated by the * application for use with a single SHA256_HASH_CTX_MGR. * * The CTX interface functions carry out the initialization and padding of the jobs * entered by the user and add them to the multi-buffer manager. The lower level "scheduler" * layer then processes the jobs in an out-of-order manner. The scheduler layer functions * are internal and are not intended to be invoked directly. Jobs can be submitted * to a CTX as a complete buffer to be hashed, using the HASH_ENTIRE flag, or as partial * jobs which can be started using the HASH_FIRST flag, and later resumed or finished * using the HASH_UPDATE and HASH_LAST flags respectively. * * Note: The submit function does not require data buffers to be block sized. * * The SHA256 CTX interface functions are available for 4 architectures: SSE, AVX, AVX2 and * AVX512. In addition, a multibinary interface is provided, which selects the appropriate * architecture-specific function at runtime. * * Usage: The application creates a SHA256_HASH_CTX_MGR object and initializes it * with a call to sha256_ctx_mgr_init*() function, where henceforth "*" stands for the * relevant suffix for each architecture; _sse, _avx, _avx2, _avx512(or no suffix for the * multibinary version). The SHA256_HASH_CTX_MGR object will be used to schedule processor * resources, with up to 4 SHA256_HASH_CTX objects (or 8 in the AVX2 case, 16 in the AVX512) * being processed at a time. * * Each SHA256_HASH_CTX must be initialized before first use by the hash_ctx_init macro * defined in multi_buffer.h. After initialization, the application may begin computing * a hash by giving the SHA256_HASH_CTX to a SHA256_HASH_CTX_MGR using the submit functions * sha256_ctx_mgr_submit*() with the HASH_FIRST flag set. When the SHA256_HASH_CTX is * returned to the application (via this or a later call to sha256_ctx_mgr_submit*() or * sha256_ctx_mgr_flush*()), the application can then re-submit it with another call to * sha256_ctx_mgr_submit*(), but without the HASH_FIRST flag set. * * Ideally, on the last buffer for that hash, sha256_ctx_mgr_submit_sse is called with * HASH_LAST, although it is also possible to submit the hash with HASH_LAST and a zero * length if necessary. When a SHA256_HASH_CTX is returned after having been submitted with * HASH_LAST, it will contain a valid hash. The SHA256_HASH_CTX can be reused immediately * by submitting with HASH_FIRST. * * For example, you would submit hashes with the following flags for the following numbers * of buffers: * * * The order in which SHA256_CTX objects are returned is in general different from the order * in which they are submitted. * * A few possible error conditions exist: * * * These error conditions are reported by returning the SHA256_HASH_CTX immediately after * a submit with its error member set to a non-zero error code (defined in * multi_buffer.h). No changes are made to the SHA256_HASH_CTX_MGR in the case of an * error; no processing is done for other hashes. * */ #include #include "multi_buffer.h" #include "types.h" #ifndef _MSC_VER #include #endif #ifdef __cplusplus extern "C" { #endif // Hash Constants and Typedefs #define SHA256_DIGEST_NWORDS 8 #define SHA256_MAX_LANES 16 #define SHA256_X8_LANES 8 #define SHA256_MIN_LANES 4 #define SHA256_BLOCK_SIZE 64 #define SHA256_LOG2_BLOCK_SIZE 6 #define SHA256_PADLENGTHFIELD_SIZE 8 #define SHA256_INITIAL_DIGEST \ 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, \ 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 typedef uint32_t sha256_digest_array[SHA256_DIGEST_NWORDS][SHA256_MAX_LANES]; typedef uint32_t SHA256_WORD_T; /** @brief Scheduler layer - Holds info describing a single SHA256 job for the multi-buffer manager */ typedef struct { uint8_t* buffer; //!< pointer to data buffer for this job uint64_t len; //!< length of buffer for this job in blocks. DECLARE_ALIGNED(uint32_t result_digest[SHA256_DIGEST_NWORDS], 64); JOB_STS status; //!< output job status void* user_data; //!< pointer for user's job-related data } SHA256_JOB; /** @brief Scheduler layer - Holds arguments for submitted SHA256 job */ typedef struct { sha256_digest_array digest; uint8_t* data_ptr[SHA256_MAX_LANES]; } SHA256_MB_ARGS_X16; /** @brief Scheduler layer - Lane data */ typedef struct { SHA256_JOB *job_in_lane; } SHA256_LANE_DATA; /** @brief Scheduler layer - Holds state for multi-buffer SHA256 jobs */ typedef struct { SHA256_MB_ARGS_X16 args; uint32_t lens[SHA256_MAX_LANES]; uint64_t unused_lanes; //!< each nibble is index (0...3 or 0...7) of unused lanes, nibble 4 or 8 is set to F as a flag SHA256_LANE_DATA ldata[SHA256_MAX_LANES]; uint32_t num_lanes_inuse; } SHA256_MB_JOB_MGR; /** @brief Context layer - Holds state for multi-buffer SHA256 jobs */ typedef struct { SHA256_MB_JOB_MGR mgr; } SHA256_HASH_CTX_MGR; /** @brief Context layer - Holds info describing a single SHA256 job for the multi-buffer CTX manager */ typedef struct { SHA256_JOB job; // Must be at struct offset 0. HASH_CTX_STS status; //!< Context status flag HASH_CTX_ERROR error; //!< Context error flag uint32_t total_length; //!< Running counter of length processed for this CTX's job const void* incoming_buffer; //!< pointer to data input buffer for this CTX's job uint32_t incoming_buffer_length; //!< length of buffer for this job in bytes. uint8_t partial_block_buffer[SHA256_BLOCK_SIZE * 2]; //!< CTX partial blocks uint32_t partial_block_buffer_length; void* user_data; //!< pointer for user to keep any job-related data } SHA256_HASH_CTX; /******************************************************************* * CTX level API function prototypes ******************************************************************/ /** * @brief Initialize the context level SHA256 multi-buffer manager structure. * @requires SSE4.1 * * @param mgr Structure holding context level state info * @returns void */ void sha256_ctx_mgr_init_sse (SHA256_HASH_CTX_MGR* mgr); /** * @brief Submit a new SHA256 job to the context level multi-buffer manager. * @requires SSE4.1 * * @param mgr Structure holding context level state info * @param ctx Structure holding ctx job info * @param buffer Pointer to buffer to be processed * @param len Length of buffer (in bytes) to be processed * @param flags Input flag specifying job type (first, update, last or entire) * @returns NULL if no jobs complete or pointer to jobs structure. */ SHA256_HASH_CTX* sha256_ctx_mgr_submit_sse (SHA256_HASH_CTX_MGR* mgr, SHA256_HASH_CTX* ctx, const void* buffer, uint32_t len, HASH_CTX_FLAG flags); /** * @brief Finish all submitted SHA256 jobs and return when complete. * @requires SSE4.1 * * @param mgr Structure holding context level state info * @returns NULL if no jobs to complete or pointer to jobs structure. */ SHA256_HASH_CTX* sha256_ctx_mgr_flush_sse (SHA256_HASH_CTX_MGR* mgr); /** * @brief Initialize the SHA256 multi-buffer manager structure. * @requires AVX * * @param mgr Structure holding context level state info * @returns void */ void sha256_ctx_mgr_init_avx (SHA256_HASH_CTX_MGR* mgr); /** * @brief Submit a new SHA256 job to the multi-buffer manager. * @requires AVX * * @param mgr Structure holding context level state info * @param ctx Structure holding ctx job info * @param buffer Pointer to buffer to be processed * @param len Length of buffer (in bytes) to be processed * @param flags Input flag specifying job type (first, update, last or entire) * @returns NULL if no jobs complete or pointer to jobs structure. */ SHA256_HASH_CTX* sha256_ctx_mgr_submit_avx (SHA256_HASH_CTX_MGR* mgr, SHA256_HASH_CTX* ctx, const void* buffer, uint32_t len, HASH_CTX_FLAG flags); /** * @brief Finish all submitted SHA256 jobs and return when complete. * @requires AVX * * @param mgr Structure holding context level state info * @returns NULL if no jobs to complete or pointer to jobs structure. */ SHA256_HASH_CTX* sha256_ctx_mgr_flush_avx (SHA256_HASH_CTX_MGR* mgr); /** * @brief Initialize the SHA256 multi-buffer manager structure. * @requires AVX2 * * @param mgr Structure holding context level state info * @returns void */ void sha256_ctx_mgr_init_avx2 (SHA256_HASH_CTX_MGR* mgr); /** * @brief Submit a new SHA256 job to the multi-buffer manager. * @requires AVX2 * * @param mgr Structure holding context level state info * @param ctx Structure holding ctx job info * @param buffer Pointer to buffer to be processed * @param len Length of buffer (in bytes) to be processed * @param flags Input flag specifying job type (first, update, last or entire) * @returns NULL if no jobs complete or pointer to jobs structure. */ SHA256_HASH_CTX* sha256_ctx_mgr_submit_avx2 (SHA256_HASH_CTX_MGR* mgr, SHA256_HASH_CTX* ctx, const void* buffer, uint32_t len, HASH_CTX_FLAG flags); /** * @brief Finish all submitted SHA256 jobs and return when complete. * @requires AVX2 * * @param mgr Structure holding context level state info * @returns NULL if no jobs to complete or pointer to jobs structure. */ SHA256_HASH_CTX* sha256_ctx_mgr_flush_avx2 (SHA256_HASH_CTX_MGR* mgr); /** * @brief Initialize the SHA256 multi-buffer manager structure. * @requires AVX512 * * @param mgr Structure holding context level state info * @returns void */ void sha256_ctx_mgr_init_avx512 (SHA256_HASH_CTX_MGR* mgr); /** * @brief Submit a new SHA256 job to the multi-buffer manager. * @requires AVX512 * * @param mgr Structure holding context level state info * @param ctx Structure holding ctx job info * @param buffer Pointer to buffer to be processed * @param len Length of buffer (in bytes) to be processed * @param flags Input flag specifying job type (first, update, last or entire) * @returns NULL if no jobs complete or pointer to jobs structure. */ SHA256_HASH_CTX* sha256_ctx_mgr_submit_avx512 (SHA256_HASH_CTX_MGR* mgr, SHA256_HASH_CTX* ctx, const void* buffer, uint32_t len, HASH_CTX_FLAG flags); /** * @brief Finish all submitted SHA256 jobs and return when complete. * @requires AVX512 * * @param mgr Structure holding context level state info * @returns NULL if no jobs to complete or pointer to jobs structure. */ SHA256_HASH_CTX* sha256_ctx_mgr_flush_avx512 (SHA256_HASH_CTX_MGR* mgr); /******************** multibinary function prototypes **********************/ /** * @brief Initialize the SHA256 multi-buffer manager structure. * @requires SSE4.1 or AVX or AVX2 * * @param mgr Structure holding context level state info * @returns void */ void sha256_ctx_mgr_init (SHA256_HASH_CTX_MGR* mgr); /** * @brief Submit a new SHA256 job to the multi-buffer manager. * @requires SSE4.1 or AVX or AVX2 * * @param mgr Structure holding context level state info * @param ctx Structure holding ctx job info * @param buffer Pointer to buffer to be processed * @param len Length of buffer (in bytes) to be processed * @param flags Input flag specifying job type (first, update, last or entire) * @returns NULL if no jobs complete or pointer to jobs structure. */ SHA256_HASH_CTX* sha256_ctx_mgr_submit (SHA256_HASH_CTX_MGR* mgr, SHA256_HASH_CTX* ctx, const void* buffer, uint32_t len, HASH_CTX_FLAG flags); /** * @brief Finish all submitted SHA256 jobs and return when complete. * @requires SSE4.1 or AVX or AVX2 * * @param mgr Structure holding context level state info * @returns NULL if no jobs to complete or pointer to jobs structure. */ SHA256_HASH_CTX* sha256_ctx_mgr_flush (SHA256_HASH_CTX_MGR* mgr); /******************************************************************* * Scheduler (internal) level out-of-order function prototypes ******************************************************************/ void sha256_mb_mgr_init_sse(SHA256_MB_JOB_MGR *state); SHA256_JOB* sha256_mb_mgr_submit_sse(SHA256_MB_JOB_MGR *state, SHA256_JOB* job); SHA256_JOB* sha256_mb_mgr_flush_sse(SHA256_MB_JOB_MGR *state); #define sha256_mb_mgr_init_avx sha256_mb_mgr_init_sse SHA256_JOB* sha256_mb_mgr_submit_avx (SHA256_MB_JOB_MGR *state, SHA256_JOB* job); SHA256_JOB* sha256_mb_mgr_flush_avx (SHA256_MB_JOB_MGR *state); void sha256_mb_mgr_init_avx2 (SHA256_MB_JOB_MGR *state); SHA256_JOB* sha256_mb_mgr_submit_avx2 (SHA256_MB_JOB_MGR *state, SHA256_JOB* job); SHA256_JOB* sha256_mb_mgr_flush_avx2 (SHA256_MB_JOB_MGR *state); void sha256_mb_mgr_init_avx512 (SHA256_MB_JOB_MGR *state); SHA256_JOB* sha256_mb_mgr_submit_avx512 (SHA256_MB_JOB_MGR *state, SHA256_JOB* job); SHA256_JOB* sha256_mb_mgr_flush_avx512 (SHA256_MB_JOB_MGR *state); #ifdef __cplusplus } #endif #endif // _SHA256_MB_H_