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nxdumptool/include/core/rsa.h
Pablo Curiel fb58d20fe3 I'm a terrible person and an even worse developer.
And I don't need anyone to tell me so, thank you very much.

* PoC: remove gc_dumper and nsp_dumper PoC; create nxdt_rw_poc with all gc_dumper and nsp_dumper capabilities + standalone ticket dumping + raw NCA dumping; use ftruncate() to set output file sizes whenever possible. PoC code is a mess, as always. Expect the features from the rest of the PoCs to be implemented into nxdt_rw_poc soon.

* workflow: temporarily disable borealis build generation; comment out manual installation of up-to-date packages from Leseratte's mirrors because the latest devkitA64 Docker image has them all.

* borealis: update to fix building issues with latest devkitA64.

* bfttf: error out on invalid NCA signatures.

* config: save configuration to the current working directory; parse and validate new "gamecard/write_raw_hfs_partition" flag.

* defines: remove CONFIG_PATH macro; rename CONFIG_FILE_NAME.

* gamecard: rename fs_ctx -> hfs_ctx everywhere; use HFS function calls to retrieve partition names.

* hfs: move GameCardHashFileSystemPartitionType enum from gamecard.h and rename it to HashFileSystemPartitionType; add hfsIsValidContext(); add hfsGetPartitionNameString().

* nca/npdm: update comments to reflect latest HOS version.

* nxdt_bfsar: always generate absolute SD card paths with the device name; error out on an invalid NCA signature.

* nxdt_includes: include dirent.h; refactor Version struct to make it a union of all known *Version structs.

* nxdt_log: don't write session separator if the logfile is empty.

* nxdt_utils: log appletIsGamePlayRecordingSupported() errors; add utilsDeleteDirectoryRecursively().

* rsa: provide clearer function descriptions in header file.

* services: handle usb:ds initialization.

* tik: update tikConvertPersonalizedTicketToCommonTicket() to allow NULL input pointers as raw certificate chain arguments (much needed for standalone ticket dumping).

* title: add titleGetApplicationIdByMetaKey().

* usb: refactor interface (de)initialization code; slightly improve ABI usage (console-side only); redefine ABI version field in StartSession command blocks; upgrade ABI to v1.1.

* FatFs: rename DIR -> FDIR to avoid conflicts with definitions from stdlib's dirent.h.

* gamecard_tab: display package ID from the inserted gamecard; fix displayed version numbers from bundled system updates below 3.0.0.

* todo: add notes about creating devoptab devices for HFS/PFS/RomFS file tree dumping.
2023-05-24 21:05:34 +02:00

53 lines
2.1 KiB
C

/*
* rsa.c
*
* Copyright (c) 2018-2019, SciresM.
* Copyright (c) 2020-2023, 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 __RSA_H__
#define __RSA_H__
#ifdef __cplusplus
extern "C" {
#endif
#define RSA2048_BYTES 0x100
#define RSA2048_BITS (RSA2048_BYTES * 8)
#define RSA2048_SIG_SIZE RSA2048_BYTES
#define RSA2048_PUBKEY_SIZE RSA2048_BYTES
/// Verifies a RSA-2048-PSS with SHA-256 signature.
/// The provided signature and modulus must have sizes of at least RSA2048_SIG_SIZE and RSA2048_PUBKEY_SIZE, respectively.
bool rsa2048VerifySha256BasedPssSignature(const void *data, size_t data_size, const void *signature, const void *modulus, const void *public_exponent, size_t public_exponent_size);
/// Performs RSA-2048-OAEP decryption.
/// Suitable to decrypt the titlekey block from tickets with personalized crypto.
/// The provided signature and modulus must have sizes of at least RSA2048_SIG_SIZE and RSA2048_PUBKEY_SIZE, respectively.
/// 'label' and 'label_size' arguments are optional -- if not needed, these may be set to NULL and 0, respectively.
bool rsa2048OaepDecrypt(void *dst, size_t dst_size, const void *signature, const void *modulus, const void *public_exponent, size_t public_exponent_size, const void *private_exponent, \
size_t private_exponent_size, const void *label, size_t label_size, size_t *out_size);
#ifdef __cplusplus
}
#endif
#endif /* __RSA_H__ */