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Implement SeedDB & Seed Crypto

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This commit is contained in:
Valentin Vanelslande
2018-10-01 10:42:10 -05:00
parent fb720c00b7
commit b067b5aa5a
6 changed files with 229 additions and 11 deletions
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18
src/core/file_sys/ncch_container.cpp
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@ -7,10 +7,12 @@
#include <memory>
#include <cryptopp/aes.h>
#include <cryptopp/modes.h>
#include <cryptopp/sha.h>
#include "common/common_types.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "core/file_sys/ncch_container.h"
#include "core/file_sys/seed_db.h"
#include "core/hw/aes/key.h"
#include "core/loader/loader.h"
@ -166,9 +168,19 @@ Loader::ResultStatus NCCHContainer::Load() {
if (!ncch_header.seed_crypto) {
key_y_secondary = key_y_primary;
} else {
// Seed crypto is unimplemented.
LOG_ERROR(Service_FS, "Unsupported seed crypto");
failed_to_decrypt = true;
auto opt{FileSys::GetSeed(ncch_header.program_id)};
if (!opt.has_value()) {
LOG_ERROR(Service_FS, "Seed for program {:016X} not found",
ncch_header.program_id);
failed_to_decrypt = true;
} else {
auto seed{*opt};
std::array<u8, 32> input;
std::memcpy(input.data(), key_y_primary.data(), key_y_primary.size());
std::memcpy(input.data() + key_y_primary.size(), seed.data(), seed.size());
CryptoPP::SHA256 sha;
sha.CalculateDigest(key_y_secondary.data(), input.data(), input.size());
}
}
SetKeyY(KeySlotID::NCCHSecure1, key_y_primary);