mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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91 lines
No EOL
3.4 KiB
C
91 lines
No EOL
3.4 KiB
C
/*
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* Copyright (c) 2018 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <string.h>
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#include "utils.h"
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#include "exocfg.h"
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#include "sealedkeys.h"
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#include "se.h"
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static const uint8_t g_titlekey_seal_key_source[0x10] = {
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0xCB, 0xB7, 0x6E, 0x38, 0xA1, 0xCB, 0x77, 0x0F, 0xB2, 0xA5, 0xB2, 0x9D, 0xD8, 0x56, 0x9F, 0x76
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};
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static const uint8_t g_seal_key_sources[CRYPTOUSECASE_MAX_5X][0x10] = {
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{0xF4, 0x0C, 0x16, 0x26, 0x0D, 0x46, 0x3B, 0xE0, 0x8C, 0x6A, 0x56, 0xE5, 0x82, 0xD4, 0x1B, 0xF6},
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{0x7F, 0x54, 0x2C, 0x98, 0x1E, 0x54, 0x18, 0x3B, 0xBA, 0x63, 0xBD, 0x4C, 0x13, 0x5B, 0xF1, 0x06},
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{0xC7, 0x3F, 0x73, 0x60, 0xB7, 0xB9, 0x9D, 0x74, 0x0A, 0xF8, 0x35, 0x60, 0x1A, 0x18, 0x74, 0x63},
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{0x0E, 0xE0, 0xC4, 0x33, 0x82, 0x66, 0xE8, 0x08, 0x39, 0x13, 0x41, 0x7D, 0x04, 0x64, 0x2B, 0x6D},
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{0xE1, 0xA8, 0xAA, 0x6A, 0x2D, 0x9C, 0xDE, 0x43, 0x0C, 0xDE, 0xC6, 0x17, 0xF6, 0xC7, 0xF1, 0xDE},
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{0x74, 0x20, 0xF6, 0x46, 0x77, 0xB0, 0x59, 0x2C, 0xE8, 0x1B, 0x58, 0x64, 0x47, 0x41, 0x37, 0xD9},
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{0xAA, 0x19, 0x0F, 0xFA, 0x4C, 0x30, 0x3B, 0x2E, 0xE8, 0x1B, 0x58, 0x64, 0x47, 0x41, 0x37, 0xD9}
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};
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bool usecase_is_invalid(unsigned int usecase) {
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if (exosphere_get_target_firmware() >= EXOSPHERE_TARGET_FIRMWARE_500) {
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return usecase >= CRYPTOUSECASE_MAX_5X;
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} else {
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return usecase >= CRYPTOUSECASE_MAX;
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}
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}
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void seal_key_internal(void *dst, const void *src, const uint8_t *seal_key_source) {
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decrypt_data_into_keyslot(KEYSLOT_SWITCH_TEMPKEY, KEYSLOT_SWITCH_SESSIONKEY, seal_key_source, 0x10);
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se_aes_128_ecb_encrypt_block(KEYSLOT_SWITCH_TEMPKEY, dst, 0x10, src, 0x10);
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}
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void unseal_key_internal(unsigned int keyslot, const void *src, const uint8_t *seal_key_source) {
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decrypt_data_into_keyslot(KEYSLOT_SWITCH_TEMPKEY, KEYSLOT_SWITCH_SESSIONKEY, seal_key_source, 0x10);
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decrypt_data_into_keyslot(keyslot, KEYSLOT_SWITCH_TEMPKEY, src, 0x10);
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}
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void seal_titlekey(void *dst, size_t dst_size, const void *src, size_t src_size) {
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if (dst_size != 0x10 || src_size != 0x10) {
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generic_panic();
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}
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seal_key_internal(dst, src, g_titlekey_seal_key_source);
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}
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void unseal_titlekey(unsigned int keyslot, const void *src, size_t src_size) {
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if (src_size != 0x10) {
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generic_panic();
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}
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unseal_key_internal(keyslot, src, g_titlekey_seal_key_source);
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}
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void seal_key(void *dst, size_t dst_size, const void *src, size_t src_size, unsigned int usecase) {
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if (usecase_is_invalid(usecase) || dst_size != 0x10 || src_size != 0x10) {
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generic_panic();
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}
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seal_key_internal(dst, src, g_seal_key_sources[usecase]);
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}
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void unseal_key(unsigned int keyslot, const void *src, size_t src_size, unsigned int usecase) {
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if (usecase_is_invalid(usecase) || src_size != 0x10) {
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generic_panic();
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}
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unseal_key_internal(keyslot, src, g_seal_key_sources[usecase]);
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} |