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60 lines
2 KiB
C++
60 lines
2 KiB
C++
/*
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* Copyright (c) 2018-2020 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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#pragma once
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#include <vapours.hpp>
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#include <exosphere/se/se_aes.hpp>
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#include <exosphere/se/se_rsa.hpp>
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namespace ams::se {
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/* 256-bit AES keyslots are two 128-bit keys. */
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constexpr inline int AesKeySlotPartCount = 2;
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/* RSA keys are both a modulus and an exponent. */
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constexpr inline int RsaKeySlotPartCount = 2;
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constexpr inline size_t StickyBitContextSize = 2 * AesBlockSize;
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struct Context {
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u8 random[AesBlockSize];
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u8 sticky_bits[StickyBitContextSize / AesBlockSize][AesBlockSize];
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u8 aes_key[AesKeySlotCount][AesKeySlotPartCount][AesBlockSize];
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u8 aes_oiv[AesKeySlotCount][AesBlockSize];
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u8 aes_uiv[AesKeySlotCount][AesBlockSize];
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u8 rsa_key[RsaKeySlotCount][RsaKeySlotPartCount][RsaSize / AesBlockSize][AesBlockSize];
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u8 fixed_pattern[AesBlockSize];
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};
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static_assert(sizeof(Context) == 0x840);
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static_assert(util::is_pod<Context>::value);
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struct StickyBits {
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u8 se_security;
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u8 tzram_security;
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u16 crypto_security_perkey;
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u8 crypto_keytable_access[AesKeySlotCount];
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u8 rsa_security_perkey;
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u8 rsa_keytable_access[RsaKeySlotCount];
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};
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static_assert(util::is_pod<StickyBits>::value);
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bool ValidateStickyBits(const StickyBits &bits);
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void SaveContext(Context *dst);
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void ConfigureAutomaticContextSave();
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void SaveContextAutomatic();
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void SaveTzramAutomatic();
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}
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