27 lines
1009 B
C
27 lines
1009 B
C
#ifndef SPX_UTILSX4_H
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#define SPX_UTILSX4_H
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#include <stdint.h>
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#include "params.h"
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#include "context.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. SPX_ADDR_TYPE_HASHTREE or SPX_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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#define treehashx1 SPX_NAMESPACE(treehashx1)
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void treehashx1(unsigned char *root, unsigned char *auth_path,
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const spx_ctx* ctx,
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uint32_t leaf_idx, uint32_t idx_offset, uint32_t tree_height,
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void (*gen_leaf)(
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unsigned char* /* Where to write the leaf */,
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const spx_ctx* /* ctx */,
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uint32_t addr_idx, void *info),
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uint32_t tree_addrx4[8], void *info);
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#endif
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