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hos: Add Mariko PK11 decryption and unpacking

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This commit is contained in:
CTCaer
2020-07-04 21:32:36 +03:00
parent 8880dfab24
commit 9b3e9724b7
8 changed files with 119 additions and 21 deletions
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28
nyx/nyx_gui/hos/pkg1.c
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@@ -21,11 +21,14 @@
#include "hos.h"
#include "pkg1.h"
#include "../config.h"
#include <gfx_utils.h>
#include <mem/heap.h>
#include <sec/se.h>
#include <utils/aarch64_util.h>
extern hekate_config h_cfg;
/*
* package1.1 header: <wb, ldr, sm>
* package1.1 layout:
@@ -66,17 +69,36 @@ const pkg1_id_t *pkg1_identify(u8 *pkg1, char *build_date)
}
for (u32 i = 0; _pkg1_ids[i].id; i++)
if (!memcmp(pkg1 + 0x10, _pkg1_ids[i].id, 12))
if (!memcmp(pkg1 + 0x10, _pkg1_ids[i].id, 8))
return &_pkg1_ids[i];
return NULL;
}
void pkg1_decrypt(const pkg1_id_t *id, u8 *pkg1)
int pkg1_decrypt(const pkg1_id_t *id, u8 *pkg1)
{
// Decrypt package1.
pk11_hdr_t *hdr;
u8 *pkg11 = pkg1 + id->pkg11_off;
u32 pkg11_size = *(u32 *)pkg11;
se_aes_crypt_ctr(11, pkg11 + 0x20, pkg11_size, pkg11 + 0x20, pkg11_size, pkg11 + 0x10);
if (!h_cfg.t210b01)
{
hdr = (pk11_hdr_t *)(pkg11 + 0x20);
se_aes_crypt_ctr(11, hdr, pkg11_size, hdr, pkg11_size, pkg11 + 0x10);
}
else
{
bl_hdr_t210b01_t *oem_hdr = (bl_hdr_t210b01_t *)pkg1;
pkg1 += sizeof(bl_hdr_t210b01_t);
hdr = (pk11_hdr_t *)(pkg1 + id->pkg11_off + 0x20);
// Use BEK for T210B01.
se_aes_iv_clear(13);
se_aes_crypt_cbc(13, 0, pkg1 + 0x20, oem_hdr->size, pkg1 + 0x20, oem_hdr->size);
}
// Return if header is valid.
return (hdr->magic == PKG1_MAGIC);
}
const u8 *pkg1_unpack(void *wm_dst, void *sm_dst, void *ldr_dst, const pkg1_id_t *id, u8 *pkg1)