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checking AES_Decrypt

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Naim2000 2024-02-26 11:32:47 -05:00
parent 432e35f02c
commit 5b3106d84c
1 changed files with 38 additions and 38 deletions
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18
source/wad.c
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@ -554,10 +554,10 @@ out:
static const aeskey WiiCommonKey = { 0xeb, 0xe4, 0x2a, 0x22, 0x5e, 0x85, 0x93, 0xe4, 0x48, 0xd9, 0xc5, 0x45, 0x73, 0x81, 0xaa, 0xf7 };
void __Wad_FixTicket(signed_blob *p_tik)
void __Wad_FixTicket(signed_blob *s_tik)
{
u8 *data = (u8 *)p_tik;
u8 *ckey = data + 0x1F1;
tik* p_tik = SIGNATURE_PAYLOAD(s_tik);
u8 *ckey = ((u8*)s_tik) + 0x1F1;
/*
* Alright. I'd hate to pull this off on signed tickets using the vWii common key.
@ -574,15 +574,15 @@ void __Wad_FixTicket(signed_blob *p_tik)
__attribute__((aligned(0x10)))
static unsigned char keybuf[0x10], iv[0x10];
u8* titlekey = data + sizeof(sig_rsa2048) + offsetof(tik, cipher_title_key);
u64* titleid = data + sizeof(sig_rsa2048) + offsetof(tik, titleid);
u8* titlekey = &p_tik->cipher_title_key;
u64* titleid = &p_tik->titleid;
memcpy(keybuf, titlekey, sizeof(keybuf));
// Static so it's already zero-initialized. Ideally the bottom 8 bytes don't get touched somehow.
//
memcpy(iv, titleid, sizeof(*titleid));
memcpy(iv, titleid, sizeof(u64));
memset(iv + 8, 0, sizeof(iv) - sizeof(u64));
AES_Init();
AES_Decrypt(WiiCommonKey, 0x10, iv, 0x10, keybuf, keybuf, 0x10);
int ret = AES_Decrypt(WiiCommonKey, 0x10, iv, 0x10, keybuf, keybuf, 0x10);
printf("decrypt:%i\n", ret);
memcpy(titlekey, keybuf, sizeof(keybuf));
}