nintendo-back-up/yuzu
1
0
Fork 0
mirror of https://git.zaroz.cloud/nintendo-back-up/yuzu/yuzu.git synced 2025-05-12 00:45:25 +00:00
Code Issues Actions Packages Projects Releases 1 Wiki Activity

aes_util: Make CalculateNintendoTweak() an internally linked function

Browse Source 
This function doesn't directly depend on class state, so it can be
hidden entirely from the interface in the cpp file.
This commit is contained in:
Lioncash 2018-08-04 16:52:19 -04:00
parent b25468b498
commit 64c8212ae1
2 changed files with 10 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
src/core/crypto/aes_util.cpp
View File

@ -9,6 +9,16 @@
#include "core/crypto/key_manager.h"
namespace Core::Crypto {
namespace {
std::vector<u8> CalculateNintendoTweak(size_t sector_id) {
std::vector<u8> out(0x10);
for (size_t i = 0xF; i <= 0xF; --i) {
out[i] = sector_id & 0xFF;
sector_id >>= 8;
}
return out;
}
} // Anonymous namespace
static_assert(static_cast<size_t>(Mode::CTR) == static_cast<size_t>(MBEDTLS_CIPHER_AES_128_CTR),
"CTR has incorrect value.");
@ -100,16 +110,6 @@ void AESCipher<Key, KeySize>::XTSTranscode(const u8* src, size_t size, u8* dest,
}
}
template <typename Key, size_t KeySize>
std::vector<u8> AESCipher<Key, KeySize>::CalculateNintendoTweak(size_t sector_id) {
std::vector<u8> out(0x10);
for (size_t i = 0xF; i <= 0xF; --i) {
out[i] = sector_id & 0xFF;
sector_id >>= 8;
}
return out;
}
template class AESCipher<Key128>;
template class AESCipher<Key256>;
} // namespace Core::Crypto

2
src/core/crypto/aes_util.h
View File

@ -56,7 +56,5 @@ public:
private:
std::unique_ptr<CipherContext> ctx;
static std::vector<u8> CalculateNintendoTweak(size_t sector_id);
};
} // namespace Core::Crypto