Files
Thom Wiggers 0f36b2842d Update SPHINCS+
Remove #ifdefs, fix a64 lack of MSVC support, fix a cast

Fix some bugs

minor fixes

Add duplicate consistency files

more minor fixes

Fix  problems found by tests

Fix 32-bit compatibility problems

Fix more bugs

Windows compat issues

Fix KECCAK4X in NMake makefiles
2023-01-24 11:23:09 +01:00

30 lines
1.1 KiB
C

#ifndef SPX_UTILSX8_H
#define SPX_UTILSX8_H
#include <stdint.h>
#include "params.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. SPX_ADDR_TYPE_HASHTREE or SPX_ADDR_TYPE_FORSTREE).
* Applies the offset idx_offset to indices before building addresses, so that
* it is possible to continue counting indices across trees.
*
* This implementation uses AVX to compute internal nodes 8 at a time (in
* parallel)
*/
#define treehashx8 SPX_NAMESPACE(treehashx8)
void treehashx8(unsigned char *root, unsigned char *auth_path,
const spx_ctx *ctx,
uint32_t leaf_idx, uint32_t idx_offset, uint32_t tree_height,
void (*gen_leafx8)(
unsigned char * /* Where to write the leaves */,
const spx_ctx * /* ctx */,
uint32_t addr_idx, void *info),
uint32_t tree_addrx8[8 * 8], void *info);
#endif