partition_data_manager: Make data arrays constexpr
Previously the constructor for all of these would run at program startup, consuming time before the application can enter main(). This is also particularly dangerous, given the logging system wouldn't have been initialized properly yet, yet the program would use the logs to signify an error. To rectify this, we can replace the literals with constexpr functions that perform the conversion at compile-time, completely eliminating the runtime cost of initializing these arrays.
This commit is contained in:
Lioncash
parent
9b75481755
commit
7f0f37fca7
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@ -3,21 +3,9 @@
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// Refer to the license.txt file included.
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#include "common/hex_util.h"
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#include "common/logging/log.h"
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namespace Common {
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u8 ToHexNibble(char c1) {
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if (c1 >= 65 && c1 <= 70)
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return c1 - 55;
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if (c1 >= 97 && c1 <= 102)
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return c1 - 87;
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if (c1 >= 48 && c1 <= 57)
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return c1 - 48;
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LOG_ERROR(Common, "Invalid hex digit: 0x{:02X}", c1);
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return 0;
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}
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std::vector<u8> HexStringToVector(std::string_view str, bool little_endian) {
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std::vector<u8> out(str.size() / 2);
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if (little_endian) {
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@ -30,26 +18,4 @@ std::vector<u8> HexStringToVector(std::string_view str, bool little_endian) {
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return out;
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}
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std::array<u8, 16> operator""_array16(const char* str, std::size_t len) {
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if (len != 32) {
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LOG_ERROR(Common,
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"Attempting to parse string to array that is not of correct size (expected=32, "
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"actual={}).",
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len);
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return {};
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}
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return HexStringToArray<16>(str);
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}
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std::array<u8, 32> operator""_array32(const char* str, std::size_t len) {
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if (len != 64) {
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LOG_ERROR(Common,
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"Attempting to parse string to array that is not of correct size (expected=64, "
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"actual={}).",
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len);
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return {};
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}
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return HexStringToArray<32>(str);
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}
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} // namespace Common
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@ -14,20 +14,32 @@
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namespace Common {
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u8 ToHexNibble(char c1);
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constexpr u8 ToHexNibble(char c) {
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if (c >= 65 && c <= 70) {
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return c - 55;
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}
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if (c >= 97 && c <= 102) {
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return c - 87;
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}
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return c - 48;
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}
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std::vector<u8> HexStringToVector(std::string_view str, bool little_endian);
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template <std::size_t Size, bool le = false>
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std::array<u8, Size> HexStringToArray(std::string_view str) {
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constexpr std::array<u8, Size> HexStringToArray(std::string_view str) {
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std::array<u8, Size> out{};
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if constexpr (le) {
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for (std::size_t i = 2 * Size - 2; i <= 2 * Size; i -= 2)
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for (std::size_t i = 2 * Size - 2; i <= 2 * Size; i -= 2) {
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out[i / 2] = (ToHexNibble(str[i]) << 4) | ToHexNibble(str[i + 1]);
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}
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} else {
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for (std::size_t i = 0; i < 2 * Size; i += 2)
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for (std::size_t i = 0; i < 2 * Size; i += 2) {
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out[i / 2] = (ToHexNibble(str[i]) << 4) | ToHexNibble(str[i + 1]);
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}
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}
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return out;
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}
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@ -48,7 +60,12 @@ std::string HexToString(const ContiguousContainer& data, bool upper = true) {
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return out;
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}
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std::array<u8, 0x10> operator"" _array16(const char* str, std::size_t len);
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std::array<u8, 0x20> operator"" _array32(const char* str, std::size_t len);
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constexpr std::array<u8, 16> AsArray(const char (&data)[17]) {
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return HexStringToArray<16>(data);
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}
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constexpr std::array<u8, 32> AsArray(const char (&data)[65]) {
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return HexStringToArray<32>(data);
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}
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} // namespace Common
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@ -40,12 +40,14 @@ namespace Core::Crypto {
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constexpr u64 CURRENT_CRYPTO_REVISION = 0x5;
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constexpr u64 FULL_TICKET_SIZE = 0x400;
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using namespace Common;
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using Common::AsArray;
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const std::array<SHA256Hash, 2> eticket_source_hashes{
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"B71DB271DC338DF380AA2C4335EF8873B1AFD408E80B3582D8719FC81C5E511C"_array32, // eticket_rsa_kek_source
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"E8965A187D30E57869F562D04383C996DE487BBA5761363D2D4D32391866A85C"_array32, // eticket_rsa_kekek_source
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// clang-format off
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constexpr std::array eticket_source_hashes{
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AsArray("B71DB271DC338DF380AA2C4335EF8873B1AFD408E80B3582D8719FC81C5E511C"), // eticket_rsa_kek_source
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AsArray("E8965A187D30E57869F562D04383C996DE487BBA5761363D2D4D32391866A85C"), // eticket_rsa_kekek_source
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};
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// clang-format on
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const std::map<std::pair<S128KeyType, u64>, std::string> KEYS_VARIABLE_LENGTH{
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{{S128KeyType::Master, 0}, "master_key_"},
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@ -27,7 +27,7 @@
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#include "core/file_sys/vfs_offset.h"
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#include "core/file_sys/vfs_vector.h"
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using namespace Common;
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using Common::AsArray;
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namespace Core::Crypto {
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@ -47,106 +47,124 @@ struct Package2Header {
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};
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static_assert(sizeof(Package2Header) == 0x200, "Package2Header has incorrect size.");
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const std::array<SHA256Hash, 0x10> source_hashes{
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"B24BD293259DBC7AC5D63F88E60C59792498E6FC5443402C7FFE87EE8B61A3F0"_array32, // keyblob_mac_key_source
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"7944862A3A5C31C6720595EFD302245ABD1B54CCDCF33000557681E65C5664A4"_array32, // master_key_source
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"21E2DF100FC9E094DB51B47B9B1D6E94ED379DB8B547955BEF8FE08D8DD35603"_array32, // package2_key_source
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"FC02B9D37B42D7A1452E71444F1F700311D1132E301A83B16062E72A78175085"_array32, // aes_kek_generation_source
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"FBD10056999EDC7ACDB96098E47E2C3606230270D23281E671F0F389FC5BC585"_array32, // aes_key_generation_source
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"C48B619827986C7F4E3081D59DB2B460C84312650E9A8E6B458E53E8CBCA4E87"_array32, // titlekek_source
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"04AD66143C726B2A139FB6B21128B46F56C553B2B3887110304298D8D0092D9E"_array32, // key_area_key_application_source
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"FD434000C8FF2B26F8E9A9D2D2C12F6BE5773CBB9DC86300E1BD99F8EA33A417"_array32, // key_area_key_ocean_source
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"1F17B1FD51AD1C2379B58F152CA4912EC2106441E51722F38700D5937A1162F7"_array32, // key_area_key_system_source
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"6B2ED877C2C52334AC51E59ABFA7EC457F4A7D01E46291E9F2EAA45F011D24B7"_array32, // sd_card_kek_source
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"D482743563D3EA5DCDC3B74E97C9AC8A342164FA041A1DC80F17F6D31E4BC01C"_array32, // sd_card_save_key_source
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"2E751CECF7D93A2B957BD5FFCB082FD038CC2853219DD3092C6DAB9838F5A7CC"_array32, // sd_card_nca_key_source
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"1888CAED5551B3EDE01499E87CE0D86827F80820EFB275921055AA4E2ABDFFC2"_array32, // header_kek_source
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"8F783E46852DF6BE0BA4E19273C4ADBAEE16380043E1B8C418C4089A8BD64AA6"_array32, // header_key_source
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"D1757E52F1AE55FA882EC690BC6F954AC46A83DC22F277F8806BD55577C6EED7"_array32, // rsa_kek_seed3
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"FC02B9D37B42D7A1452E71444F1F700311D1132E301A83B16062E72A78175085"_array32, // rsa_kek_mask0
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// clang-format off
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constexpr std::array source_hashes{
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AsArray("B24BD293259DBC7AC5D63F88E60C59792498E6FC5443402C7FFE87EE8B61A3F0"), // keyblob_mac_key_source
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AsArray("7944862A3A5C31C6720595EFD302245ABD1B54CCDCF33000557681E65C5664A4"), // master_key_source
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AsArray("21E2DF100FC9E094DB51B47B9B1D6E94ED379DB8B547955BEF8FE08D8DD35603"), // package2_key_source
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AsArray("FC02B9D37B42D7A1452E71444F1F700311D1132E301A83B16062E72A78175085"), // aes_kek_generation_source
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AsArray("FBD10056999EDC7ACDB96098E47E2C3606230270D23281E671F0F389FC5BC585"), // aes_key_generation_source
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AsArray("C48B619827986C7F4E3081D59DB2B460C84312650E9A8E6B458E53E8CBCA4E87"), // titlekek_source
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AsArray("04AD66143C726B2A139FB6B21128B46F56C553B2B3887110304298D8D0092D9E"), // key_area_key_application_source
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AsArray("FD434000C8FF2B26F8E9A9D2D2C12F6BE5773CBB9DC86300E1BD99F8EA33A417"), // key_area_key_ocean_source
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AsArray("1F17B1FD51AD1C2379B58F152CA4912EC2106441E51722F38700D5937A1162F7"), // key_area_key_system_source
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AsArray("6B2ED877C2C52334AC51E59ABFA7EC457F4A7D01E46291E9F2EAA45F011D24B7"), // sd_card_kek_source
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AsArray("D482743563D3EA5DCDC3B74E97C9AC8A342164FA041A1DC80F17F6D31E4BC01C"), // sd_card_save_key_source
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AsArray("2E751CECF7D93A2B957BD5FFCB082FD038CC2853219DD3092C6DAB9838F5A7CC"), // sd_card_nca_key_source
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AsArray("1888CAED5551B3EDE01499E87CE0D86827F80820EFB275921055AA4E2ABDFFC2"), // header_kek_source
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AsArray("8F783E46852DF6BE0BA4E19273C4ADBAEE16380043E1B8C418C4089A8BD64AA6"), // header_key_source
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AsArray("D1757E52F1AE55FA882EC690BC6F954AC46A83DC22F277F8806BD55577C6EED7"), // rsa_kek_seed3
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AsArray("FC02B9D37B42D7A1452E71444F1F700311D1132E301A83B16062E72A78175085"), // rsa_kek_mask0
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};
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// clang-format on
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// clang-format off
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constexpr std::array keyblob_source_hashes{
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AsArray("8A06FE274AC491436791FDB388BCDD3AB9943BD4DEF8094418CDAC150FD73786"), // keyblob_key_source_00
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AsArray("2D5CAEB2521FEF70B47E17D6D0F11F8CE2C1E442A979AD8035832C4E9FBCCC4B"), // keyblob_key_source_01
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AsArray("61C5005E713BAE780641683AF43E5F5C0E03671117F702F401282847D2FC6064"), // keyblob_key_source_02
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AsArray("8E9795928E1C4428E1B78F0BE724D7294D6934689C11B190943923B9D5B85903"), // keyblob_key_source_03
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AsArray("95FA33AF95AFF9D9B61D164655B32710ED8D615D46C7D6CC3CC70481B686B402"), // keyblob_key_source_04
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AsArray("3F5BE7B3C8B1ABD8C10B4B703D44766BA08730562C172A4FE0D6B866B3E2DB3E"), // keyblob_key_source_05
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_06
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_07
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_08
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_09
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_0A
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_0B
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_0C
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_0D
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_0E
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_0F
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_10
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_11
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_12
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_13
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_14
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_15
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_16
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_17
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_18
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_19
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_1A
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_1B
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_1C
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_1D
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_1E
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // keyblob_key_source_1F
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};
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// clang-format on
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// clang-format off
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constexpr std::array master_key_hashes{
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AsArray("0EE359BE3C864BB0782E1D70A718A0342C551EED28C369754F9C4F691BECF7CA"), // master_key_00
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AsArray("4FE707B7E4ABDAF727C894AAF13B1351BFE2AC90D875F73B2E20FA94B9CC661E"), // master_key_01
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AsArray("79277C0237A2252EC3DFAC1F7C359C2B3D121E9DB15BB9AB4C2B4408D2F3AE09"), // master_key_02
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AsArray("4F36C565D13325F65EE134073C6A578FFCB0008E02D69400836844EAB7432754"), // master_key_03
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AsArray("75FF1D95D26113550EE6FCC20ACB58E97EDEB3A2FF52543ED5AEC63BDCC3DA50"), // master_key_04
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AsArray("EBE2BCD6704673EC0F88A187BB2AD9F1CC82B718C389425941BDC194DC46B0DD"), // master_key_05
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_06
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_07
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_08
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_09
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_0A
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_0B
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_0C
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_0D
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_0E
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_0F
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_10
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_11
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_12
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_13
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_14
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_15
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_16
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_17
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_18
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_19
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_1A
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_1B
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_1C
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_1D
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_1E
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AsArray("0000000000000000000000000000000000000000000000000000000000000000"), // master_key_1F
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};
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// clang-format on
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static constexpr u8 CalculateMaxKeyblobSourceHash() {
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const auto is_zero = [](const auto& data) {
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// TODO: Replace with std::all_of whenever mingw decides to update their
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// libraries to include the constexpr variant of it.
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for (const auto element : data) {
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if (element != 0) {
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return false;
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}
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}
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return true;
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};
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const std::array<SHA256Hash, 0x20> keyblob_source_hashes{
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"8A06FE274AC491436791FDB388BCDD3AB9943BD4DEF8094418CDAC150FD73786"_array32, // keyblob_key_source_00
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"2D5CAEB2521FEF70B47E17D6D0F11F8CE2C1E442A979AD8035832C4E9FBCCC4B"_array32, // keyblob_key_source_01
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"61C5005E713BAE780641683AF43E5F5C0E03671117F702F401282847D2FC6064"_array32, // keyblob_key_source_02
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"8E9795928E1C4428E1B78F0BE724D7294D6934689C11B190943923B9D5B85903"_array32, // keyblob_key_source_03
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"95FA33AF95AFF9D9B61D164655B32710ED8D615D46C7D6CC3CC70481B686B402"_array32, // keyblob_key_source_04
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"3F5BE7B3C8B1ABD8C10B4B703D44766BA08730562C172A4FE0D6B866B3E2DB3E"_array32, // keyblob_key_source_05
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_06
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_07
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_08
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_09
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_0A
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_0B
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_0C
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_0D
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_0E
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_0F
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_10
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_11
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_12
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_13
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_14
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_15
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_16
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_17
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_18
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_19
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_1A
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_1B
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_1C
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_1D
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_1E
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"0000000000000000000000000000000000000000000000000000000000000000"_array32, // keyblob_key_source_1F
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};
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const std::array<SHA256Hash, 0x20> master_key_hashes{
|
||||
"0EE359BE3C864BB0782E1D70A718A0342C551EED28C369754F9C4F691BECF7CA"_array32, // master_key_00
|
||||
"4FE707B7E4ABDAF727C894AAF13B1351BFE2AC90D875F73B2E20FA94B9CC661E"_array32, // master_key_01
|
||||
"79277C0237A2252EC3DFAC1F7C359C2B3D121E9DB15BB9AB4C2B4408D2F3AE09"_array32, // master_key_02
|
||||
"4F36C565D13325F65EE134073C6A578FFCB0008E02D69400836844EAB7432754"_array32, // master_key_03
|
||||
"75FF1D95D26113550EE6FCC20ACB58E97EDEB3A2FF52543ED5AEC63BDCC3DA50"_array32, // master_key_04
|
||||
"EBE2BCD6704673EC0F88A187BB2AD9F1CC82B718C389425941BDC194DC46B0DD"_array32, // master_key_05
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_06
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_07
|
||||
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_08
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_09
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_0A
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_0B
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_0C
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_0D
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_0E
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_0F
|
||||
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_10
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_11
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_12
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_13
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_14
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_15
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_16
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_17
|
||||
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_18
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_19
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_1A
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_1B
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_1C
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_1D
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_1E
|
||||
"0000000000000000000000000000000000000000000000000000000000000000"_array32, // master_key_1F
|
||||
};
|
||||
|
||||
static u8 CalculateMaxKeyblobSourceHash() {
|
||||
for (s8 i = 0x1F; i >= 0; --i) {
|
||||
if (keyblob_source_hashes[i] != SHA256Hash{})
|
||||
if (!is_zero(keyblob_source_hashes[i])) {
|
||||
return static_cast<u8>(i + 1);
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
Reference in New Issue