diff options
Diffstat (limited to 'lib/liboqs/src/sig/sphincs/pqclean_sphincs-sha256-192f-simple_clean/fors.h')
-rw-r--r-- | lib/liboqs/src/sig/sphincs/pqclean_sphincs-sha256-192f-simple_clean/fors.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/liboqs/src/sig/sphincs/pqclean_sphincs-sha256-192f-simple_clean/fors.h b/lib/liboqs/src/sig/sphincs/pqclean_sphincs-sha256-192f-simple_clean/fors.h new file mode 100644 index 000000000..17ae61350 --- /dev/null +++ b/lib/liboqs/src/sig/sphincs/pqclean_sphincs-sha256-192f-simple_clean/fors.h @@ -0,0 +1,32 @@ +#ifndef PQCLEAN_SPHINCSSHA256192FSIMPLE_CLEAN_FORS_H +#define PQCLEAN_SPHINCSSHA256192FSIMPLE_CLEAN_FORS_H + +#include <stdint.h> + +#include "hash_state.h" +#include "params.h" + +/** + * Signs a message m, deriving the secret key from sk_seed and the FTS address. + * Assumes m contains at least PQCLEAN_SPHINCSSHA256192FSIMPLE_CLEAN_FORS_HEIGHT * PQCLEAN_SPHINCSSHA256192FSIMPLE_CLEAN_FORS_TREES bits. + */ +void PQCLEAN_SPHINCSSHA256192FSIMPLE_CLEAN_fors_sign( + unsigned char *sig, unsigned char *pk, + const unsigned char *m, + const unsigned char *sk_seed, const unsigned char *pub_seed, + const uint32_t fors_addr[8], const hash_state *hash_state_seeded); + +/** + * Derives the FORS public key from a signature. + * This can be used for verification by comparing to a known public key, or to + * subsequently verify a signature on the derived public key. The latter is the + * typical use-case when used as an FTS below an OTS in a hypertree. + * Assumes m contains at least PQCLEAN_SPHINCSSHA256192FSIMPLE_CLEAN_FORS_HEIGHT * PQCLEAN_SPHINCSSHA256192FSIMPLE_CLEAN_FORS_TREES bits. + */ +void PQCLEAN_SPHINCSSHA256192FSIMPLE_CLEAN_fors_pk_from_sig( + unsigned char *pk, + const unsigned char *sig, const unsigned char *m, + const unsigned char *pub_seed, const uint32_t fors_addr[8], + const hash_state *hash_state_seeded); + +#endif |