INSANEMODE/yuzu-android
1
0
Fork 0
mirror of https://github.com/yuzu-emu/yuzu-android.git synced 2025-06-14 07:07:56 -05:00
Code Issues Packages Projects Releases Wiki Activity

Make XCI comply to review and style guidelines

Browse Source
This commit is contained in:
Zach Hilman
2018-07-28 21:39:42 -04:00
parent 22342487e8
commit 239a3113e4
16 changed files with 223 additions and 482 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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

@ -6,7 +6,8 @@
#include "common/assert.h"
#include "core/crypto/ctr_encryption_layer.h"
namespace Crypto {
namespace Core::Crypto {
CTREncryptionLayer::CTREncryptionLayer(FileSys::VirtualFile base_, Key128 key_, size_t base_offset)
: EncryptionLayer(std::move(base_)), base_offset(base_offset), cipher(key_, Mode::CTR),
iv(16, 0) {}
@ -21,29 +22,28 @@ size_t CTREncryptionLayer::Read(u8* data, size_t length, size_t offset) const {
std::vector<u8> raw = base->ReadBytes(length, offset);
if (raw.size() != length)
return Read(data, raw.size(), offset);
cipher.Transcode(raw.data(), length, data, Op::DECRYPT);
cipher.Transcode(raw.data(), length, data, Op::Decrypt);
return length;
}
// offset does not fall on block boundary (0x10)
std::vector<u8> block = base->ReadBytes(0x10, offset - sector_offset);
UpdateIV(base_offset + offset - sector_offset);
cipher.Transcode(block.data(), block.size(), block.data(), Op::DECRYPT);
cipher.Transcode(block.data(), block.size(), block.data(), Op::Decrypt);
size_t read = 0x10 - sector_offset;
if (length + sector_offset < 0x10) {
memcpy_s(data, length, block.data() + sector_offset, std::min<u64>(length, read));
memcpy(data, block.data() + sector_offset, std::min<u64>(length, read));
return read;
}
memcpy_s(data, length, block.data() + sector_offset, read);
memcpy(data, block.data() + sector_offset, read);
return read + Read(data + read, length - read, offset + read);
}
void CTREncryptionLayer::SetIV(std::vector<u8> iv_) {
const auto length = std::min<size_t>(iv_.size(), iv.size());
for (size_t i = 0; i < length; ++i)
iv[i] = iv_[i];
void CTREncryptionLayer::SetIV(const std::vector<u8>& iv_) {
const auto length = std::min(iv_.size(), iv.size());
iv.assign(iv_.cbegin(), iv_.cbegin() + length);
}
void CTREncryptionLayer::UpdateIV(size_t offset) const {
@ -54,4 +54,4 @@ void CTREncryptionLayer::UpdateIV(size_t offset) const {
}
cipher.SetIV(iv);
}
} // namespace Crypto
} // namespace Core::Crypto