1 #ifndef PQCLEAN_SPHINCSHARAKA192FSIMPLE_AESNI_FORS_H 2 #define PQCLEAN_SPHINCSHARAKA192FSIMPLE_AESNI_FORS_H 3 4 #include <stdint.h> 5 6 #include "hash_state.h" 7 #include "params.h" 8 9 /** 10 * Signs a message m, deriving the secret key from sk_seed and the FTS address. 11 * Assumes m contains at least PQCLEAN_SPHINCSHARAKA192FSIMPLE_AESNI_FORS_HEIGHT * PQCLEAN_SPHINCSHARAKA192FSIMPLE_AESNI_FORS_TREES bits. 12 */ 13 void PQCLEAN_SPHINCSHARAKA192FSIMPLE_AESNI_fors_sign( fors_gen_skx4(unsigned char * sk0,unsigned char * sk1,unsigned char * sk2,unsigned char * sk3,const unsigned char * sk_seed,uint32_t fors_leaf_addrx4[4* 8],const hash_state * state_seeded)14 unsigned char *sig, unsigned char *pk, 15 const unsigned char *m, 16 const unsigned char *sk_seed, const unsigned char *pub_seed, 17 const uint32_t fors_addr[8], const hash_state *hash_state_seeded); 18 19 /** 20 * Derives the FORS public key from a signature. 21 * This can be used for verification by comparing to a known public key, or to 22 * subsequently verify a signature on the derived public key. The latter is the fors_sk_to_leaf(unsigned char * leaf,const unsigned char * sk,const unsigned char * pub_seed,uint32_t fors_leaf_addr[8],const hash_state * state_seeded)23 * typical use-case when used as an FTS below an OTS in a hypertree. 24 * Assumes m contains at least PQCLEAN_SPHINCSHARAKA192FSIMPLE_AESNI_FORS_HEIGHT * PQCLEAN_SPHINCSHARAKA192FSIMPLE_AESNI_FORS_TREES bits. 25 */ 26 void PQCLEAN_SPHINCSHARAKA192FSIMPLE_AESNI_fors_pk_from_sig( 27 unsigned char *pk, 28 const unsigned char *sig, const unsigned char *m, 29 const unsigned char *pub_seed, const uint32_t fors_addr[8], 30 const hash_state *hash_state_seeded); 31 32 #endif 33