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39 lines
1.7 KiB
C
39 lines
1.7 KiB
C
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#ifndef PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_UTILSX4_H
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#define PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_UTILSX4_H
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#include "hash_state.h"
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#include "params.h"
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#include <stdint.h>
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/**
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* For a given leaf index, computes the authentication path and the resulting
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* root node using Merkle's TreeHash algorithm.
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* Expects the layer and tree parts of the tree_addr to be set, as well as the
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* tree type (i.e. PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_ADDR_TYPE_HASHTREE or PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_ADDR_TYPE_FORSTREE).
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* Applies the offset idx_offset to indices before building addresses, so that
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* it is possible to continue counting indices across trees.
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*/
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void PQCLEAN_SPHINCSSHAKE256192SROBUST_AVX2_treehashx4_FORS_HEIGHT(unsigned char *rootx4,
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unsigned char *auth_pathx4,
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const unsigned char *sk_seed,
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const unsigned char *pub_seed,
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const uint32_t leaf_idx[4],
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uint32_t idx_offset[4],
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void (*gen_leafx4)(unsigned char * /* leaf0 */,
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unsigned char * /* leaf1 */,
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unsigned char * /* leaf2 */,
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unsigned char * /* leaf3 */,
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const unsigned char * /* sk_seed */,
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const unsigned char * /* pub_seed */,
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uint32_t /* addr_idx0 */,
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uint32_t /* addr_idx1 */,
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uint32_t /* addr_idx2 */,
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uint32_t /* addr_idx3 */,
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const uint32_t[8] /* tree_addr */,
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const hash_state * /* state_seeded */),
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uint32_t tree_addrx4[4 * 8],
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const hash_state *state_seeded);
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#endif
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