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ams_mitm: fix bis key generation for newer hardware
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0c3a294cbe
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600d68bd1a
1 changed files with 7 additions and 2 deletions
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@ -148,6 +148,11 @@ void Utils::InitializeThreadFunc(void *args) {
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/* Automatically backup BIS keys. */
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{
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u64 key_generation = 0;
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if (GetRuntimeFirmwareVersion() >= FirmwareVersion_500) {
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R_ASSERT(splGetConfig(SplConfigItem_NewKeyGeneration, &key_generation));
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}
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static constexpr u8 const BisKeySources[4][2][0x10] = {
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{
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{0xF8, 0x3F, 0x38, 0x6E, 0x2C, 0xD2, 0xCA, 0x32, 0xA8, 0x9A, 0xB9, 0xAA, 0x29, 0xBF, 0xC7, 0x48},
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@ -172,7 +177,7 @@ void Utils::InitializeThreadFunc(void *args) {
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for (size_t partition = 0; partition < 4; partition++) {
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if (partition == 0) {
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for (size_t i = 0; i < 2; i++) {
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R_ASSERT(splFsGenerateSpecificAesKey(BisKeySources[partition][i], 0, i, bis_keys[partition][i]));
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R_ASSERT(splFsGenerateSpecificAesKey(BisKeySources[partition][i], key_generation, i, bis_keys[partition][i]));
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}
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} else {
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static constexpr u8 const BisKekSource[0x10] = {
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@ -182,7 +187,7 @@ void Utils::InitializeThreadFunc(void *args) {
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const u32 option = (partition == 3 && sts::spl::IsRecoveryBoot()) ? 0x4 : 0x1;
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u8 access_key[0x10];
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R_ASSERT(splCryptoGenerateAesKek(BisKekSource, 0, option, access_key));
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R_ASSERT(splCryptoGenerateAesKek(BisKekSource, key_generation, option, access_key));
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for (size_t i = 0; i < 2; i++) {
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R_ASSERT(splCryptoGenerateAesKey(access_key, BisKeySources[partition][i], bis_keys[partition][i]));
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}
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