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#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include "lilliput-ae.h"
#include "helpers.h"
struct vector
{
char *name;
uint8_t key[KEY_BYTES];
uint8_t nonce[NONCE_BYTES];
size_t auth_len;
uint8_t *auth;
size_t message_len;
uint8_t *message;
};
typedef struct vector vector;
/* Keys and nonces generated with /dev/urandom. */
const vector VECTORS[] = {
{
.name = "short",
.key = {
0xdc, 0xd8, 0xcb, 0x6d, 0xf9, 0xda, 0xf2, 0xc9,
0x7c, 0xc1, 0x6a, 0xff, 0x7e, 0x1d, 0x27, 0xa3
},
.nonce = {
0xcd, 0x6f, 0x24, 0xe1, 0xf8, 0xcd, 0x64, 0xde,
0x18, 0x2f, 0x92, 0xab, 0xdb, 0xfa, 0xff
},
.auth_len = 8,
.auth = (uint8_t*)"deadbeef",
.message_len = 4,
.message = (uint8_t[]){
0xde, 0xad, 0xbe, 0xef
}
},
{
.name = "block-sized",
.key = {
0x3f, 0x75, 0x05, 0x0a, 0xc1, 0xc6, 0xb5, 0xe0,
0x57, 0x2e, 0x60, 0x9e, 0x32, 0xab, 0xbe, 0xd0
},
.nonce = {
0xcd, 0x7d, 0xb0, 0xa0, 0x62, 0xdf, 0xda, 0x0a,
0x23, 0x7a, 0x17, 0x32, 0x60, 0x42, 0xef
},
.auth_len = 13,
.auth = (uint8_t*)"some metadata",
.message_len = 2*BLOCK_BYTES,
.message = (uint8_t*)"32-byte long, i.e. 2*BLOCK_BYTES"
},
{
.name = "arbitrarily long",
.key = {
0x13, 0x6a, 0x99, 0xfd, 0xbf, 0x88, 0xac, 0xf8,
0x92, 0x7b, 0x27, 0xb1, 0x10, 0xa5, 0xe8, 0x73
},
.nonce = {
0x59, 0x41, 0xa7, 0x53, 0x0f, 0xde, 0xf1, 0xb1,
0xca, 0xd5, 0x80, 0xc4, 0x1c, 0x16, 0x2b
},
.auth_len = 30,
.auth = (uint8_t*)"a bunch of associated metadata",
.message_len = 59,
.message = (uint8_t*)"here comes the placeholder: foobar ipsum dolor sit baz quux"
}
};
int main()
{
int diff = 0;
for (const vector *v=VECTORS; v<ARRAY_END(VECTORS); v++)
{
uint8_t ciphertext[v->message_len+BLOCK_BYTES];
size_t ciphertext_len;
uint8_t tag[TAG_BYTES];
lilliput_ae_encrypt(
v->message_len, v->message,
v->auth_len, v->auth,
v->nonce,
&ciphertext_len, ciphertext,
tag
);
uint8_t deciphered[v->message_len];
size_t deciphered_len;
bool valid = lilliput_ae_decrypt(
ciphertext_len, ciphertext,
v->auth_len, v->auth,
v->nonce,
tag,
&deciphered_len, deciphered
);
if (!valid)
{
REPORT_INVALID(v->name);
diff++;
continue;
}
if (deciphered_len != v->message_len)
{
REPORT_DIFFERENCE(v->name, "deciphered plaintext length");
diff++;
continue;
}
if (memcmp(deciphered, v->message, deciphered_len) != 0)
{
REPORT_DIFFERENCE(v->name, "deciphered plaintext");
diff++;
continue;
}
}
return diff;
}
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