inline void csa_decrypt_single_packet(csakey_t *csakey, uint8_t *ts_packet) {
struct csakey *key = (struct csakey *)csakey;
if (use_dvbcsa) {
unsigned int key_idx = ts_packet_get_scrambled(ts_packet) - 2;
unsigned int payload_offset = ts_packet_get_payload_offset(ts_packet);
ts_packet_set_not_scrambled(ts_packet);
dvbcsa_decrypt(key->s_csakey[key_idx], ts_packet + payload_offset, 188 - payload_offset);
}
if (use_ffdecsa) {
uint8_t *cluster[3] = { ts_packet, ts_packet + 188, NULL };
ffdecsa_decrypt_packets(key->ff_csakey, cluster);
}
}
int
main (void)
{
struct dvbcsa_key_s *key = dvbcsa_key_alloc();
unsigned int i;
uint8_t data[256];
#ifdef HAVE_ASSERT_H
assert(key != NULL);
#endif
puts("* CSA decryption *");
for (i = 0; i < sizeof(csa_tests) / sizeof(struct test_s); i++)
{
printf(" test %u\n", i + 1);
dvbcsa_key_set(csa_tests[i].key, key);
memcpy(data, csa_tests[i].in, TS_SIZE);
dvbcsa_decrypt(key, data, TS_SIZE);
if (memcmp(data, csa_tests[i].out, TS_SIZE))
{
puts("\nTest failed\n");
hexdump("control words", csa_tests[i].key, sizeof(dvbcsa_cw_t));
hexdump("input data", csa_tests[i].out, TS_SIZE);
hexdump("expected stream", csa_tests[i].in, TS_SIZE);
hexdump("output stream", data, TS_SIZE);
return (1);
}
}
dvbcsa_key_free(key);
puts("* Done *");
return (0);
}
