crypto_aead.h

int crypto_aead_encrypt(
    unsigned char *c, unsigned long long *clen,
    const unsigned char *m, unsigned long long mlen,
    const unsigned char *ad, unsigned long long adlen,
    const unsigned char *nsec,
    const unsigned char *npub,
    const unsigned char *k
);

int crypto_aead_decrypt(
    unsigned char *m, unsigned long long *mlen,
    unsigned char *nsec,
    const unsigned char *c, unsigned long long clen,
    const unsigned char *ad, unsigned long long adlen,
    const unsigned char *npub,
    const unsigned char *k
);