1
0
Fork 0
mirror of https://github.com/DarkMatterCore/nxdumptool.git synced 2024-11-10 04:31:44 +00:00
nxdumptool/include/core/keys.h
Pablo Curiel f79680184d Runtime key derivation with hardcoded key sources
* aes: add aes128EcbCrypt() as a one-shot function to perform AES-128-ECB crypto. The rest of the codebase now calls this function whenever suitable.

* fs_ext: add const keyword to IPC input structs wherever suitable.

* key_sources: add hardcoded master key vectors (prod, dev); master KEK sources (Erista, Mariko); master key source; ticket common key source; SMC key type sources; SMC seal key masks; AES key generation source; NCA header KEK source; NCA header key source and NCA KAEK sources. Also fixed the hardcoded gamecard CardInfo key source for dev units (it was previously generated using retail keydata, my bad).

* keys: remove keysGetNcaMainSignatureModulus(); remove keysDecryptNcaKeyAreaEntry(); repurpose keyset struct to only hold keys that can actually be used for the current hardware type; remove KeysGameCardKeyset; remove keysIsXXModulusYYMandatory() helpers; remove keysRetrieveKeysFromProgramMemory(); remove keysDeriveSealedNcaKeyAreaEncryptionKeys(); add keysDeriveMasterKeys() and keysDerivePerGenerationKeys(); rename keysDeriveGameCardKeys() -> keysDeriveGcCardInfoKey(); add small reimplementations of GenerateAesKek, LoadAesKey and GenerateAesKey; add keysLoadAesKeyFromAesKek() and keysGenerateAesKeyFromAesKek() wrappers. Furthermore, master key derivation is now carried out manually using hardcoded key sources and the last known master key, which is loaded from the Lockpick_RCM keys file -- if the last known master key is unavailable, the key derivation algorithm will then fallback to TSEC root key / Mariko KEK based key derivation, depending on the hardware type.

* nca: add hardcoded NCA man signature moduli (prod, dev); merge ncaDecryptKeyArea() and ncaEncryptKeyArea() into ncaKeyAreaCrypt().

* nxdt_utils: add utilsIsMarikoUnit(); remove _utilsAppletModeCheck(); rename utilsAppletModeCheck() -> utilsIsAppletMode().

* services: remove spl:mig dependency (yay).

* smc: add SmcKeyType enum; add SmcSealKey enum; add SmcGenerateAesKekOption struct; add smcPrepareGenerateAesKekOption().
2023-04-08 13:38:28 +02:00

58 lines
2.3 KiB
C

/*
* keys.h
*
* Copyright (c) 2018-2020, SciresM.
* Copyright (c) 2019, shchmue.
* Copyright (c) 2020-2022, DarkMatterCore <pabloacurielz@gmail.com>.
*
* This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool).
*
* nxdumptool is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* nxdumptool is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#ifndef __KEYS_H__
#define __KEYS_H__
#ifdef __cplusplus
extern "C" {
#endif
/// Loads (and derives) keydata from sysmodule program memory, the Lockpick_RCM keys file and hardcoded/obfuscated information.
/// Must be called (and succeed) before calling any of the functions below.
bool keysLoadKeyset(void);
/// Returns a pointer to the AES-128-XTS NCA header key, or NULL if keydata hasn't been loaded.
const u8 *keysGetNcaHeaderKey(void);
/// Returns a pointer to an AES-128-ECB NCA key area encryption key using the provided key area encryption key index and key generation values, or NULL if keydata hasn't been loaded.
const u8 *keysGetNcaKeyAreaEncryptionKey(u8 kaek_index, u8 key_generation);
/// Decrypts a RSA-OAEP wrapped titlekey using console-specific keydata.
/// 'rsa_wrapped_titlekey' must have a size of at least 0x100 bytes. 'out_titlekey' must have a size of at least AES_128_KEY_SIZE.
/// Returns false if an error occurs or if keydata hasn't been loaded.
bool keysDecryptRsaOaepWrappedTitleKey(const void *rsa_wrapped_titlekey, void *out_titlekey);
/// Returns a pointer to an AES-128-ECB ticket common key using the provided key generation value, or NULL if keydata hasn't been loaded.
const u8 *keysGetTicketCommonKey(u8 key_generation);
/// Returns a pointer to the AES-128-CBC CardInfo area key for gamecard headers, or NULL if keydata hasn't been loaded.
const u8 *keysGetGameCardInfoKey(void);
#ifdef __cplusplus
}
#endif
#endif /* __KEYS_H__ */