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#include <stdbool.h>
#include "crypto_aead.h"
#include "lilliput-ae.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
)
{
(void)nsec;
lilliput_ae_encrypt(mlen, m, adlen, ad, k, npub, c, c+mlen);
*clen = mlen + TAG_BYTES;
return 0;
}
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
)
{
(void)nsec;
size_t tagless_len = clen-TAG_BYTES;
bool valid = lilliput_ae_decrypt(
tagless_len, c, adlen, ad, k, npub, c+tagless_len, m
);
if (!valid)
return -1;
*mlen = tagless_len;
return 0;
}
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