mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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232 lines
15 KiB
C++
232 lines
15 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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#include <stratosphere.hpp>
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#include "fssystem_key_slot_cache.hpp"
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namespace ams::fssystem {
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namespace {
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constexpr inline const size_t KeySize = crypto::AesDecryptor128::KeySize;
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constexpr inline const size_t AcidSignatureKeyGenerationMax = 1;
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constexpr inline const u8 AcidSignatureKeyModulusDev[AcidSignatureKeyGenerationMax + 1][AcidSignatureKeyModulusSize] = {
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{
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0xD6, 0x34, 0xA5, 0x78, 0x6C, 0x68, 0xCE, 0x5A, 0xC2, 0x37, 0x17, 0xF3, 0x82, 0x45, 0xC6, 0x89,
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0xE1, 0x2D, 0x06, 0x67, 0xBF, 0xB4, 0x06, 0x19, 0x55, 0x6B, 0x27, 0x66, 0x0C, 0xA4, 0xB5, 0x87,
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0x81, 0x25, 0xF4, 0x30, 0xBC, 0x53, 0x08, 0x68, 0xA2, 0x48, 0x49, 0x8C, 0x3F, 0x38, 0x40, 0x9C,
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0xC4, 0x26, 0xF4, 0x79, 0xE2, 0xA1, 0x85, 0xF5, 0x5C, 0x7F, 0x58, 0xBA, 0xA6, 0x1C, 0xA0, 0x8B,
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0x84, 0x16, 0x14, 0x6F, 0x85, 0xD9, 0x7C, 0xE1, 0x3C, 0x67, 0x22, 0x1E, 0xFB, 0xD8, 0xA7, 0xA5,
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0x9A, 0xBF, 0xEC, 0x0E, 0xCF, 0x96, 0x7E, 0x85, 0xC2, 0x1D, 0x49, 0x5D, 0x54, 0x26, 0xCB, 0x32,
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0x7C, 0xF6, 0xBB, 0x58, 0x03, 0x80, 0x2B, 0x5D, 0xF7, 0xFB, 0xD1, 0x9D, 0xC7, 0xC6, 0x2E, 0x53,
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0xC0, 0x6F, 0x39, 0x2C, 0x1F, 0xA9, 0x92, 0xF2, 0x4D, 0x7D, 0x4E, 0x74, 0xFF, 0xE4, 0xEF, 0xE4,
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0x7C, 0x3D, 0x34, 0x2A, 0x71, 0xA4, 0x97, 0x59, 0xFF, 0x4F, 0xA2, 0xF4, 0x66, 0x78, 0xD8, 0xBA,
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0x99, 0xE3, 0xE6, 0xDB, 0x54, 0xB9, 0xE9, 0x54, 0xA1, 0x70, 0xFC, 0x05, 0x1F, 0x11, 0x67, 0x4B,
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0x26, 0x8C, 0x0C, 0x3E, 0x03, 0xD2, 0xA3, 0x55, 0x5C, 0x7D, 0xC0, 0x5D, 0x9D, 0xFF, 0x13, 0x2F,
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0xFD, 0x19, 0xBF, 0xED, 0x44, 0xC3, 0x8C, 0xA7, 0x28, 0xCB, 0xE5, 0xE0, 0xB1, 0xA7, 0x9C, 0x33,
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0x8D, 0xB8, 0x6E, 0xDE, 0x87, 0x18, 0x22, 0x60, 0xC4, 0xAE, 0xF2, 0x87, 0x9F, 0xCE, 0x09, 0x5C,
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0xB5, 0x99, 0xA5, 0x9F, 0x49, 0xF2, 0xD7, 0x58, 0xFA, 0xF9, 0xC0, 0x25, 0x7D, 0xD6, 0xCB, 0xF3,
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0xD8, 0x6C, 0xA2, 0x69, 0x91, 0x68, 0x73, 0xB1, 0x94, 0x6F, 0xA3, 0xF3, 0xB9, 0x7D, 0xF8, 0xE0,
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0x72, 0x9E, 0x93, 0x7B, 0x7A, 0xA2, 0x57, 0x60, 0xB7, 0x5B, 0xA9, 0x84, 0xAE, 0x64, 0x88, 0x69
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},
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{
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0xBC, 0xA5, 0x6A, 0x7E, 0xEA, 0x38, 0x34, 0x62, 0xA6, 0x10, 0x18, 0x3C, 0xE1, 0x63, 0x7B, 0xF0,
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0xD3, 0x08, 0x8C, 0xF5, 0xC5, 0xC4, 0xC7, 0x93, 0xE9, 0xD9, 0xE6, 0x32, 0xF3, 0xA0, 0xF6, 0x6E,
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0x8A, 0x98, 0x76, 0x47, 0x33, 0x47, 0x65, 0x02, 0x70, 0xDC, 0x86, 0x5F, 0x3D, 0x61, 0x5A, 0x70,
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0xBC, 0x5A, 0xCA, 0xCA, 0x50, 0xAD, 0x61, 0x7E, 0xC9, 0xEC, 0x27, 0xFF, 0xE8, 0x64, 0x42, 0x9A,
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0xEE, 0xBE, 0xC3, 0xD1, 0x0B, 0xC0, 0xE9, 0xBF, 0x83, 0x8D, 0xC0, 0x0C, 0xD8, 0x00, 0x5B, 0x76,
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0x90, 0xD2, 0x4B, 0x30, 0x84, 0x35, 0x8B, 0x1E, 0x20, 0xB7, 0xE4, 0xDC, 0x63, 0xE5, 0xDF, 0xCD,
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0x00, 0x5F, 0x81, 0x5F, 0x67, 0xC5, 0x8B, 0xDF, 0xFC, 0xE1, 0x37, 0x5F, 0x07, 0xD9, 0xDE, 0x4F,
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0xE6, 0x7B, 0xF1, 0xFB, 0xA1, 0x5A, 0x71, 0x40, 0xFE, 0xBA, 0x1E, 0xAE, 0x13, 0x22, 0xD2, 0xFE,
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0x37, 0xA2, 0xB6, 0x8B, 0xAB, 0xEB, 0x84, 0x81, 0x4E, 0x7C, 0x1E, 0x02, 0xD1, 0xFB, 0xD7, 0x5D,
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0x11, 0x84, 0x64, 0xD2, 0x4D, 0xBB, 0x50, 0x00, 0x67, 0x54, 0xE2, 0x77, 0x89, 0xBA, 0x0B, 0xE7,
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0x05, 0x57, 0x9A, 0x22, 0x5A, 0xEC, 0x76, 0x1C, 0xFD, 0xE8, 0xA8, 0x18, 0x16, 0x41, 0x65, 0x03,
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0xFA, 0xC4, 0xA6, 0x31, 0x5C, 0x1A, 0x7F, 0xAB, 0x11, 0xC8, 0x4A, 0x99, 0xB9, 0xE6, 0xCF, 0x62,
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0x21, 0xA6, 0x72, 0x47, 0xDB, 0xBA, 0x96, 0x26, 0x4E, 0x2E, 0xD4, 0x8C, 0x46, 0xD6, 0xA7, 0x1A,
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0x6C, 0x32, 0xA7, 0xDF, 0x85, 0x1C, 0x03, 0xC3, 0x6D, 0xA9, 0xE9, 0x68, 0xF4, 0x17, 0x1E, 0xB2,
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0x70, 0x2A, 0xA1, 0xE5, 0xE1, 0xF3, 0x8F, 0x6F, 0x63, 0xAC, 0xEB, 0x72, 0x0B, 0x4C, 0x4A, 0x36,
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0x3C, 0x60, 0x91, 0x9F, 0x6E, 0x1C, 0x71, 0xEA, 0xD0, 0x78, 0x78, 0xA0, 0x2E, 0xC6, 0x32, 0x6B
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}
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};
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constexpr inline const u8 AcidSignatureKeyModulusProd[AcidSignatureKeyGenerationMax + 1][AcidSignatureKeyModulusSize] = {
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{
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0xDD, 0xC8, 0xDD, 0xF2, 0x4E, 0x6D, 0xF0, 0xCA, 0x9E, 0xC7, 0x5D, 0xC7, 0x7B, 0xAD, 0xFE, 0x7D,
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0x23, 0x89, 0x69, 0xB6, 0xF2, 0x06, 0xA2, 0x02, 0x88, 0xE1, 0x55, 0x91, 0xAB, 0xCB, 0x4D, 0x50,
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0x2E, 0xFC, 0x9D, 0x94, 0x76, 0xD6, 0x4C, 0xD8, 0xFF, 0x10, 0xFA, 0x5E, 0x93, 0x0A, 0xB4, 0x57,
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0xAC, 0x51, 0xC7, 0x16, 0x66, 0xF4, 0x1A, 0x54, 0xC2, 0xC5, 0x04, 0x3D, 0x1B, 0xFE, 0x30, 0x20,
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0x8A, 0xAC, 0x6F, 0x6F, 0xF5, 0xC7, 0xB6, 0x68, 0xB8, 0xC9, 0x40, 0x6B, 0x42, 0xAD, 0x11, 0x21,
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0xE7, 0x8B, 0xE9, 0x75, 0x01, 0x86, 0xE4, 0x48, 0x9B, 0x0A, 0x0A, 0xF8, 0x7F, 0xE8, 0x87, 0xF2,
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0x82, 0x01, 0xE6, 0xA3, 0x0F, 0xE4, 0x66, 0xAE, 0x83, 0x3F, 0x4E, 0x9F, 0x5E, 0x01, 0x30, 0xA4,
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0x00, 0xB9, 0x9A, 0xAE, 0x5F, 0x03, 0xCC, 0x18, 0x60, 0xE5, 0xEF, 0x3B, 0x5E, 0x15, 0x16, 0xFE,
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0x1C, 0x82, 0x78, 0xB5, 0x2F, 0x47, 0x7C, 0x06, 0x66, 0x88, 0x5D, 0x35, 0xA2, 0x67, 0x20, 0x10,
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0xE7, 0x6C, 0x43, 0x68, 0xD3, 0xE4, 0x5A, 0x68, 0x2A, 0x5A, 0xE2, 0x6D, 0x73, 0xB0, 0x31, 0x53,
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0x1C, 0x20, 0x09, 0x44, 0xF5, 0x1A, 0x9D, 0x22, 0xBE, 0x12, 0xA1, 0x77, 0x11, 0xE2, 0xA1, 0xCD,
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0x40, 0x9A, 0xA2, 0x8B, 0x60, 0x9B, 0xEF, 0xA0, 0xD3, 0x48, 0x63, 0xA2, 0xF8, 0xA3, 0x2C, 0x08,
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0x56, 0x52, 0x2E, 0x60, 0x19, 0x67, 0x5A, 0xA7, 0x9F, 0xDC, 0x3F, 0x3F, 0x69, 0x2B, 0x31, 0x6A,
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0xB7, 0x88, 0x4A, 0x14, 0x84, 0x80, 0x33, 0x3C, 0x9D, 0x44, 0xB7, 0x3F, 0x4C, 0xE1, 0x75, 0xEA,
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0x37, 0xEA, 0xE8, 0x1E, 0x7C, 0x77, 0xB7, 0xC6, 0x1A, 0xA2, 0xF0, 0x9F, 0x10, 0x61, 0xCD, 0x7B,
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0x5B, 0x32, 0x4C, 0x37, 0xEF, 0xB1, 0x71, 0x68, 0x53, 0x0A, 0xED, 0x51, 0x7D, 0x35, 0x22, 0xFD
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},
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{
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0xE7, 0xAA, 0x25, 0xC8, 0x01, 0xA5, 0x14, 0x6B, 0x01, 0x60, 0x3E, 0xD9, 0x96, 0x5A, 0xBF, 0x90,
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0xAC, 0xA7, 0xFD, 0x9B, 0x5B, 0xBD, 0x8A, 0x26, 0xB0, 0xCB, 0x20, 0x28, 0x9A, 0x72, 0x12, 0xF5,
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0x20, 0x65, 0xB3, 0xB9, 0x84, 0x58, 0x1F, 0x27, 0xBC, 0x7C, 0xA2, 0xC9, 0x9E, 0x18, 0x95, 0xCF,
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0xC2, 0x73, 0x2E, 0x74, 0x8C, 0x66, 0xE5, 0x9E, 0x79, 0x2B, 0xB8, 0x07, 0x0C, 0xB0, 0x4E, 0x8E,
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0xAB, 0x85, 0x21, 0x42, 0xC4, 0xC5, 0x6D, 0x88, 0x9C, 0xDB, 0x15, 0x95, 0x3F, 0x80, 0xDB, 0x7A,
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0x9A, 0x7D, 0x41, 0x56, 0x25, 0x17, 0x18, 0x42, 0x4D, 0x8C, 0xAC, 0xA5, 0x7B, 0xDB, 0x42, 0x5D,
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0x59, 0x35, 0x45, 0x5D, 0x8A, 0x02, 0xB5, 0x70, 0xC0, 0x72, 0x35, 0x46, 0xD0, 0x1D, 0x60, 0x01,
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0x4A, 0xCC, 0x1C, 0x46, 0xD3, 0xD6, 0x35, 0x52, 0xD6, 0xE1, 0xF8, 0x3B, 0x5D, 0xEA, 0xDD, 0xB8,
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0xFE, 0x7D, 0x50, 0xCB, 0x35, 0x23, 0x67, 0x8B, 0xB6, 0xE4, 0x74, 0xD2, 0x60, 0xFC, 0xFD, 0x43,
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0xBF, 0x91, 0x08, 0x81, 0xC5, 0x4F, 0x5D, 0x16, 0x9A, 0xC4, 0x9A, 0xC6, 0xF6, 0xF3, 0xE1, 0xF6,
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0x5C, 0x07, 0xAA, 0x71, 0x6C, 0x13, 0xA4, 0xB1, 0xB3, 0x66, 0xBF, 0x90, 0x4C, 0x3D, 0xA2, 0xC4,
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0x0B, 0xB8, 0x3D, 0x7A, 0x8C, 0x19, 0xFA, 0xFF, 0x6B, 0xB9, 0x1F, 0x02, 0xCC, 0xB6, 0xD3, 0x0C,
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0x7D, 0x19, 0x1F, 0x47, 0xF9, 0xC7, 0x40, 0x01, 0xFA, 0x46, 0xEA, 0x0B, 0xD4, 0x02, 0xE0, 0x3D,
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0x30, 0x9A, 0x1A, 0x0F, 0xEA, 0xA7, 0x66, 0x55, 0xF7, 0xCB, 0x28, 0xE2, 0xBB, 0x99, 0xE4, 0x83,
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0xC3, 0x43, 0x03, 0xEE, 0xDC, 0x1F, 0x02, 0x23, 0xDD, 0xD1, 0x2D, 0x39, 0xA4, 0x65, 0x75, 0x03,
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0xEF, 0x37, 0x9C, 0x06, 0xD6, 0xFA, 0xA1, 0x15, 0xF0, 0xDB, 0x17, 0x47, 0x26, 0x4F, 0x49, 0x03
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}
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};
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static_assert(sizeof(AcidSignatureKeyModulusProd) == sizeof(AcidSignatureKeyModulusDev));
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constexpr inline const u8 AcidSignatureKeyPublicExponent[] = {
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0x01, 0x00, 0x01
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};
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NcaCryptoConfiguration g_nca_crypto_configuration_dev;
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NcaCryptoConfiguration g_nca_crypto_configuration_prod;
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constexpr inline s32 KeySlotCacheEntryCount = 3;
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KeySlotCache g_key_slot_cache;
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std::optional<KeySlotCacheEntry> g_key_slot_cache_entry[KeySlotCacheEntryCount];
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spl::AccessKey &GetNcaKekAccessKey(s32 key_type) {
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static spl::AccessKey s_nca_kek_access_key_array[KeyAreaEncryptionKeyCount] = {};
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static spl::AccessKey s_nca_header_kek_access_key = {};
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static spl::AccessKey s_invalid_nca_kek_access_key = {};
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if (key_type > static_cast<s32>(KeyType::NcaHeaderKey) || IsInvalidKeyTypeValue(key_type)) {
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return s_invalid_nca_kek_access_key;
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} else if (key_type == static_cast<s32>(KeyType::NcaHeaderKey)) {
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return s_nca_header_kek_access_key;
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} else {
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return s_nca_kek_access_key_array[key_type];
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}
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}
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void GenerateNcaKey(void *dst, size_t dst_size, const void *src, size_t src_size, s32 key_type, const NcaCryptoConfiguration &cfg) {
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R_ABORT_UNLESS(spl::GenerateAesKey(dst, dst_size, GetNcaKekAccessKey(key_type), src, src_size));
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}
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void DecryptAesCtr(void *dst, size_t dst_size, s32 key_type, const void *enc_key, size_t enc_key_size, const void *iv, size_t iv_size, const void *src, size_t src_size) {
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std::unique_ptr<KeySlotCacheAccessor> accessor;
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R_TRY_CATCH(g_key_slot_cache.Find(std::addressof(accessor), enc_key, enc_key_size, key_type)) {
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R_CATCH(fs::ResultTargetNotFound) {
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R_ABORT_UNLESS(g_key_slot_cache.AllocateHighPriority(std::addressof(accessor), enc_key, enc_key_size, key_type));
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R_ABORT_UNLESS(spl::LoadAesKey(accessor->GetKeySlotIndex(), GetNcaKekAccessKey(key_type), enc_key, enc_key_size));
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}
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} R_END_TRY_CATCH_WITH_ABORT_UNLESS;
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R_ABORT_UNLESS(spl::ComputeCtr(dst, dst_size, accessor->GetKeySlotIndex(), src, src_size, iv, iv_size));
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}
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void DecryptAesCtrForPreparedKey(void *dst, size_t dst_size, s32 key_type, const void *enc_key, size_t enc_key_size, const void *iv, size_t iv_size, const void *src, size_t src_size) {
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std::unique_ptr<KeySlotCacheAccessor> accessor;
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key_type = static_cast<s32>(KeyType::NcaExternalKey);
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R_TRY_CATCH(g_key_slot_cache.Find(std::addressof(accessor), enc_key, enc_key_size, key_type)) {
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R_CATCH(fs::ResultTargetNotFound) {
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R_ABORT_UNLESS(g_key_slot_cache.AllocateHighPriority(std::addressof(accessor), enc_key, enc_key_size, key_type));
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spl::AccessKey access_key;
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AMS_ABORT_UNLESS(enc_key_size == sizeof(access_key));
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std::memcpy(std::addressof(access_key), enc_key, sizeof(access_key));
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R_ABORT_UNLESS(spl::LoadPreparedAesKey(accessor->GetKeySlotIndex(), access_key));
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}
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} R_END_TRY_CATCH_WITH_ABORT_UNLESS;
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R_ABORT_UNLESS(spl::ComputeCtr(dst, dst_size, accessor->GetKeySlotIndex(), src, src_size, iv, iv_size));
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}
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}
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const ::ams::fssystem::NcaCryptoConfiguration *GetNcaCryptoConfiguration(bool prod) {
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/* Decide which configuration to use. */
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NcaCryptoConfiguration *cfg = prod ? std::addressof(g_nca_crypto_configuration_prod) : std::addressof(g_nca_crypto_configuration_dev);
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std::memcpy(cfg, fssrv::GetDefaultNcaCryptoConfiguration(prod), sizeof(NcaCryptoConfiguration));
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/* Set the key generation functions. */
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cfg->generate_key = GenerateNcaKey;
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cfg->decrypt_aes_ctr = DecryptAesCtr;
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cfg->decrypt_aes_ctr_external = DecryptAesCtrForPreparedKey;
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cfg->is_plaintext_header_available = !prod;
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return cfg;
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}
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void SetUpKekAccessKeys(bool prod) {
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/* Get the crypto configuration. */
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const NcaCryptoConfiguration *nca_crypto_cfg = GetNcaCryptoConfiguration(prod);
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/* Setup the nca keys. */
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{
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constexpr s32 Option = 0;
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/* Setup the key area encryption keys. */
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for (u8 i = 0; i < NcaCryptoConfiguration::KeyGenerationMax; ++i) {
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spl::GenerateAesKek(std::addressof(GetNcaKekAccessKey(GetKeyTypeValue(0, i))), nca_crypto_cfg->key_area_encryption_key_source[0], KeySize, i, Option);
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spl::GenerateAesKek(std::addressof(GetNcaKekAccessKey(GetKeyTypeValue(1, i))), nca_crypto_cfg->key_area_encryption_key_source[1], KeySize, i, Option);
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spl::GenerateAesKek(std::addressof(GetNcaKekAccessKey(GetKeyTypeValue(2, i))), nca_crypto_cfg->key_area_encryption_key_source[2], KeySize, i, Option);
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}
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/* Setup the header encryption key. */
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R_ABORT_UNLESS(spl::GenerateAesKek(std::addressof(GetNcaKekAccessKey(static_cast<s32>(KeyType::NcaHeaderKey))), nca_crypto_cfg->header_encryption_key_source, KeySize, 0, Option));
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}
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/* TODO FS-REIMPL: Save stuff. */
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/* Setup the keyslot cache. */
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for (s32 i = 0; i < KeySlotCacheEntryCount; i++) {
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s32 slot_index;
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R_ABORT_UNLESS(spl::AllocateAesKeySlot(std::addressof(slot_index)));
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g_key_slot_cache_entry[i].emplace(slot_index);
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g_key_slot_cache.AddEntry(std::addressof(g_key_slot_cache_entry[i].value()));
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}
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}
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void InvalidateHardwareAesKey() {
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constexpr u8 InvalidKey[KeySize] = {};
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for (s32 i = 0; i < KeySlotCacheEntryCount; ++i) {
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std::unique_ptr<KeySlotCacheAccessor> accessor;
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R_ABORT_UNLESS(g_key_slot_cache.AllocateHighPriority(std::addressof(accessor), InvalidKey, KeySize, -1 - i));
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}
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}
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|
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const u8 *GetAcidSignatureKeyModulus(bool prod, size_t key_generation) {
|
|
AMS_ASSERT(key_generation <= AcidSignatureKeyGenerationMax);
|
|
const size_t used_keygen = (key_generation % (AcidSignatureKeyGenerationMax + 1));
|
|
return prod ? AcidSignatureKeyModulusProd[used_keygen] : AcidSignatureKeyModulusDev[used_keygen];
|
|
}
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|
|
|
const u8 *GetAcidSignatureKeyPublicExponent() {
|
|
return AcidSignatureKeyPublicExponent;
|
|
}
|
|
|
|
}
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