#ifndef PARAMS_H #define PARAMS_H #define KYBER_K 4 /* Change this for different security strengths */ /* Don't change parameters below this line */ #define KYBER_N 256 #define KYBER_Q 3329 #define KYBER_ETA 2 #define KYBER_SYMBYTES 32 /* size in bytes of hashes, and seeds */ #define KYBER_SSBYTES 32 /* size in bytes of shared key */ #define KYBER_POLYBYTES 384 #define KYBER_POLYVECBYTES (KYBER_K * KYBER_POLYBYTES) #define KYBER_POLYCOMPRESSEDBYTES 160 #define KYBER_POLYVECCOMPRESSEDBYTES (KYBER_K * 352) #define KYBER_INDCPA_MSGBYTES KYBER_SYMBYTES #define KYBER_INDCPA_PUBLICKEYBYTES (KYBER_POLYVECBYTES + KYBER_SYMBYTES) #define KYBER_INDCPA_SECRETKEYBYTES (KYBER_POLYVECBYTES) #define KYBER_INDCPA_BYTES (KYBER_POLYVECCOMPRESSEDBYTES + KYBER_POLYCOMPRESSEDBYTES) #define KYBER_PUBLICKEYBYTES (KYBER_INDCPA_PUBLICKEYBYTES) #define KYBER_SECRETKEYBYTES (KYBER_INDCPA_SECRETKEYBYTES + KYBER_INDCPA_PUBLICKEYBYTES + 2*KYBER_SYMBYTES) /* 32 bytes of additional space to save H(pk) */ #define KYBER_CIPHERTEXTBYTES KYBER_INDCPA_BYTES #endif