s32 Title_GetTitleKey(tik *p_tik, u8 *key)
{
static u8 iv[16] ATTRIBUTE_ALIGN(32);
static u8 enc[16] ATTRIBUTE_ALIGN(32);
static u8 dec[16] ATTRIBUTE_ALIGN(32);
s32 ret;
/* Set IV */
memset(iv, 0, sizeof(iv));
memcpy(iv, &p_tik->titleid, sizeof(u64));
/* Set encrypted key */
memset(enc, 0, sizeof(enc));
memcpy(enc, &p_tik->cipher_title_key, sizeof(enc));
/* Clear output buffer */
memset(dec, 0, sizeof(dec));
/* Decrypt title key */
ret = ES_Decrypt(ES_KEY_COMMON, iv, enc, sizeof(enc), dec);
if (ret < 0)
return ret;
/* Copy key */
memcpy(key, dec, sizeof(dec));
return 0;
}
//---------------------------------------------------------------------------------
int get_title_key(signed_blob *s_tik, u8 *key){
//---------------------------------------------------------------------------------
static u8 iv[16] ATTRIBUTE_ALIGN(0x20);
static u8 keyin[16] ATTRIBUTE_ALIGN(0x20);
static u8 keyout[16] ATTRIBUTE_ALIGN(0x20);
int retval;
const tik *p_tik;
p_tik = (tik*)SIGNATURE_PAYLOAD(s_tik);
u8 *enc_key = (u8 *)&p_tik->cipher_title_key;
memcpy(keyin, enc_key, sizeof keyin);
memset(keyout, 0, sizeof keyout);
memset(iv, 0, sizeof iv);
memcpy(iv, &p_tik->titleid, sizeof p_tik->titleid);
retval = ES_Decrypt(ES_KEY_COMMON, iv, keyin, sizeof keyin, keyout);
if (retval){
// printf("ES_Decrypt returned %d\n", retval);
}
memcpy(key, keyout, sizeof keyout);
return retval;
}
