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33 lines
1.3 KiB
C
33 lines
1.3 KiB
C
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#ifndef PQCLEAN_SPHINCSSHA256192FSIMPLE_AVX2_FORS_H
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#define PQCLEAN_SPHINCSSHA256192FSIMPLE_AVX2_FORS_H
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#include <stdint.h>
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#include "hash_state.h"
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#include "params.h"
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/**
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* Signs a message m, deriving the secret key from sk_seed and the FTS address.
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* Assumes m contains at least PQCLEAN_SPHINCSSHA256192FSIMPLE_AVX2_FORS_HEIGHT * PQCLEAN_SPHINCSSHA256192FSIMPLE_AVX2_FORS_TREES bits.
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*/
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void PQCLEAN_SPHINCSSHA256192FSIMPLE_AVX2_fors_sign(
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unsigned char *sig, unsigned char *pk,
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const unsigned char *m,
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const unsigned char *sk_seed, const unsigned char *pub_seed,
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const uint32_t fors_addr[8], const hash_state *hash_state_seeded);
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/**
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* Derives the FORS public key from a signature.
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* This can be used for verification by comparing to a known public key, or to
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* subsequently verify a signature on the derived public key. The latter is the
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* typical use-case when used as an FTS below an OTS in a hypertree.
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* Assumes m contains at least PQCLEAN_SPHINCSSHA256192FSIMPLE_AVX2_FORS_HEIGHT * PQCLEAN_SPHINCSSHA256192FSIMPLE_AVX2_FORS_TREES bits.
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*/
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void PQCLEAN_SPHINCSSHA256192FSIMPLE_AVX2_fors_pk_from_sig(
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unsigned char *pk,
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const unsigned char *sig, const unsigned char *m,
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const unsigned char *pub_seed, const uint32_t fors_addr[8],
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const hash_state *hash_state_seeded);
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#endif
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