#ifndef PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_UTILSX4_H #define PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_UTILSX4_H #include "hash_state.h" #include "params.h" #include <stdint.h> /** * For a given leaf index, computes the authentication path and the resulting * root node using Merkle's TreeHash algorithm. * Expects the layer and tree parts of the tree_addr to be set, as well as the * tree type (i.e. PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_ADDR_TYPE_HASHTREE or PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_ADDR_TYPE_FORSTREE). * Applies the offset idx_offset to indices before building addresses, so that * it is possible to continue counting indices across trees. */ void PQCLEAN_SPHINCSSHAKE256192SSIMPLE_AVX2_treehashx4_FORS_HEIGHT(unsigned char *rootx4, unsigned char *auth_pathx4, const unsigned char *sk_seed, const unsigned char *pub_seed, const uint32_t leaf_idx[4], uint32_t idx_offset[4], void (*gen_leafx4)(unsigned char * /* leaf0 */, unsigned char * /* leaf1 */, unsigned char * /* leaf2 */, unsigned char * /* leaf3 */, const unsigned char * /* sk_seed */, const unsigned char * /* pub_seed */, uint32_t /* addr_idx0 */, uint32_t /* addr_idx1 */, uint32_t /* addr_idx2 */, uint32_t /* addr_idx3 */, const uint32_t[8] /* tree_addr */, const hash_state * /* state_seeded */), uint32_t tree_addrx4[4 * 8], const hash_state *state_seeded); #endif