#define CRYPTO_KEYBYTES     16
#define CRYPTO_NSECBYTES    0
#define CRYPTO_NPUBBYTES    16
#define CRYPTO_ABYTES       16
#define CRYPTO_NOOVERLAP    1
#define CRYPTO_BYTES        32

#define NUM_SHARES_M 		1
#define NUM_SHARES_C 		1
#define NUM_SHARES_AD 		1
#define NUM_SHARES_NPUB 	1 
#define NUM_SHARES_KEY 		2 // 1st-order masking => 2 shares