mirror of
https://github.com/DarkStore-3DS/Project_CTR.git
synced 2026-07-03 00:39:14 +00:00
Reisyukaku
142 lines
3.4 KiB
C
142 lines
3.4 KiB
C
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "aes_keygen.h"
|
|
#include "tik.h"
|
|
#include "ctr.h"
|
|
#include "utils.h"
|
|
|
|
void tik_init(tik_context* ctx)
|
|
{
|
|
memset(ctx, 0, sizeof(tik_context));
|
|
}
|
|
|
|
void tik_set_file(tik_context* ctx, FILE* file)
|
|
{
|
|
ctx->file = file;
|
|
}
|
|
|
|
void tik_set_offset(tik_context* ctx, u64 offset)
|
|
{
|
|
ctx->offset = offset;
|
|
}
|
|
|
|
void tik_set_size(tik_context* ctx, u32 size)
|
|
{
|
|
ctx->size = size;
|
|
}
|
|
|
|
void tik_set_usersettings(tik_context* ctx, settings* usersettings)
|
|
{
|
|
ctx->usersettings = usersettings;
|
|
}
|
|
|
|
void tik_get_titlekey(tik_context* ctx, u8 key[0x10])
|
|
{
|
|
memcpy(key, ctx->titlekey, 0x10);
|
|
}
|
|
|
|
void tik_get_titleid(tik_context* ctx, u8 titleid[8])
|
|
{
|
|
memcpy(titleid, ctx->tik.title_id, 8);
|
|
}
|
|
|
|
void tik_get_iv(tik_context* ctx, u8 iv[16])
|
|
{
|
|
memset(iv, 0, 16);
|
|
memcpy(iv, ctx->tik.title_id, 8);
|
|
}
|
|
|
|
void tik_decrypt_titlekey(tik_context* ctx, u8 decryptedkey[0x10])
|
|
{
|
|
u8 iv[16];
|
|
u8* keyX = settings_get_common_keyX(ctx->usersettings);
|
|
const u8 keyYs[6][16] = {
|
|
// application titles (eShop titles)
|
|
{0xd0, 0x7b, 0x33, 0x7f, 0x9c, 0xa4, 0x38, 0x59, 0x32, 0xa2, 0xe2, 0x57, 0x23, 0x23, 0x2e, 0xb9},
|
|
// system titles
|
|
{0x0c, 0x76, 0x72, 0x30, 0xf0, 0x99, 0x8f, 0x1c, 0x46, 0x82, 0x82, 0x02, 0xfa, 0xac, 0xbe, 0x4c},
|
|
// these are unused
|
|
{0xc4, 0x75, 0xcb, 0x3a, 0xb8, 0xc7, 0x88, 0xbb, 0x57, 0x5e, 0x12, 0xa1, 0x09, 0x07, 0xb8, 0xa4},
|
|
{0xe4, 0x86, 0xee, 0xe3, 0xd0, 0xc0, 0x9c, 0x90, 0x2f, 0x66, 0x86, 0xd4, 0xc0, 0x6f, 0x64, 0x9f},
|
|
{0xed, 0x31, 0xba, 0x9c, 0x04, 0xb0, 0x67, 0x50, 0x6c, 0x44, 0x97, 0xa3, 0x5b, 0x78, 0x04, 0xfc},
|
|
{0x5e, 0x66, 0x99, 0x8a, 0xb4, 0xe8, 0x93, 0x16, 0x06, 0x85, 0x0f, 0xd7, 0xa1, 0x6d, 0xd7, 0x55},
|
|
};
|
|
u8 key[16];
|
|
|
|
memset(decryptedkey, 0, 0x10);
|
|
|
|
if (!keyX)
|
|
{
|
|
fprintf(stdout, "Warning, could not read common key.\n");
|
|
}
|
|
else
|
|
{
|
|
ctr_aes_keygen(keyX, keyYs[(ctx->tik.title_id[3] & 0x10) ? 1 : 0], key);
|
|
memset(iv, 0, 0x10);
|
|
memcpy(iv, ctx->tik.title_id, 8);
|
|
|
|
ctr_init_cbc_decrypt(&ctx->aes, key, iv);
|
|
ctr_decrypt_cbc(&ctx->aes, ctx->tik.encrypted_title_key, decryptedkey, 0x10);
|
|
}
|
|
}
|
|
|
|
void tik_process(tik_context* ctx, u32 actions)
|
|
{
|
|
if (ctx->size < sizeof(eticket))
|
|
{
|
|
fprintf(stderr, "Error, ticket size too small\n");
|
|
goto clean;
|
|
}
|
|
|
|
fseeko64(ctx->file, ctx->offset, SEEK_SET);
|
|
fread((u8*)&ctx->tik, 1, sizeof(eticket), ctx->file);
|
|
|
|
tik_decrypt_titlekey(ctx, ctx->titlekey);
|
|
|
|
if (actions & InfoFlag)
|
|
{
|
|
tik_print(ctx);
|
|
}
|
|
|
|
clean:
|
|
return;
|
|
}
|
|
|
|
void tik_print(tik_context* ctx)
|
|
{
|
|
int i;
|
|
eticket* tik = &ctx->tik;
|
|
|
|
fprintf(stdout, "\nTicket content:\n");
|
|
fprintf(stdout,
|
|
"Signature Type: %08x\n"
|
|
"Issuer: %s\n",
|
|
getle32(tik->sig_type), tik->issuer
|
|
);
|
|
|
|
fprintf(stdout, "Signature:\n");
|
|
hexdump(tik->signature, 0x100);
|
|
fprintf(stdout, "\n");
|
|
|
|
memdump(stdout, "Encrypted Titlekey: ", tik->encrypted_title_key, 0x10);
|
|
|
|
if (settings_get_common_keyX(ctx->usersettings))
|
|
memdump(stdout, "Decrypted Titlekey: ", ctx->titlekey, 0x10);
|
|
|
|
memdump(stdout, "Ticket ID: ", tik->ticket_id, 0x08);
|
|
fprintf(stdout, "Ticket Version: %d\n", getle16(tik->ticket_version));
|
|
memdump(stdout, "Title ID: ", tik->title_id, 0x08);
|
|
fprintf(stdout, "Common Key Index: %d\n", tik->commonkey_idx);
|
|
|
|
fprintf(stdout, "Content permission map:\n");
|
|
for(i = 0; i < 0x40; i++) {
|
|
printf(" %02x", tik->content_permissions[i]);
|
|
|
|
if ((i+1) % 8 == 0)
|
|
printf("\n");
|
|
}
|
|
printf("\n");
|
|
}
|