decrypt.c

#include "ascon.h"

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) {
  if (clen < CRYPTO_ABYTES) {
    *mlen = 0;
    return -1;
  }

  *mlen = clen - CRYPTO_ABYTES;
  (void)nsec;

  return ascon_core(m, c, *mlen, ad, adlen, npub, k, -1);
}