#ifndef PARAMS_H #define PARAMS_H #define NTRU_HPS #define NTRU_N 821 #define NTRU_LOGQ 12 /* Do not modify below this line */ #define NTRU_Q (1 << NTRU_LOGQ) #define NTRU_WEIGHT (NTRU_Q/8 - 2) #define NTRU_SEEDBYTES 32 #define NTRU_PRFKEYBYTES 32 #define NTRU_SHAREDKEYBYTES 32 #define NTRU_SAMPLE_IID_BYTES (NTRU_N-1) #define NTRU_SAMPLE_FT_BYTES ((30*(NTRU_N-1)+7)/8) #define NTRU_SAMPLE_FG_BYTES (NTRU_SAMPLE_IID_BYTES+NTRU_SAMPLE_FT_BYTES) #define NTRU_SAMPLE_RM_BYTES (NTRU_SAMPLE_IID_BYTES+NTRU_SAMPLE_FT_BYTES) #define NTRU_PACK_DEG (NTRU_N-1) #define NTRU_PACK_TRINARY_BYTES ((NTRU_PACK_DEG+4)/5) #define NTRU_OWCPA_MSGBYTES (2*NTRU_PACK_TRINARY_BYTES) #define NTRU_OWCPA_PUBLICKEYBYTES ((NTRU_LOGQ*NTRU_PACK_DEG+7)/8) #define NTRU_OWCPA_SECRETKEYBYTES (2*NTRU_PACK_TRINARY_BYTES + NTRU_OWCPA_PUBLICKEYBYTES) #define NTRU_OWCPA_BYTES ((NTRU_LOGQ*NTRU_PACK_DEG+7)/8) #define NTRU_PUBLICKEYBYTES (NTRU_OWCPA_PUBLICKEYBYTES) #define NTRU_SECRETKEYBYTES (NTRU_OWCPA_SECRETKEYBYTES + NTRU_PRFKEYBYTES) #define NTRU_CIPHERTEXTBYTES (NTRU_OWCPA_BYTES) #endif