diff options
Diffstat (limited to 'src/core/crypto/ctr_encryption_layer.cpp')
| -rw-r--r-- | src/core/crypto/ctr_encryption_layer.cpp | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/src/core/crypto/ctr_encryption_layer.cpp b/src/core/crypto/ctr_encryption_layer.cpp index 296fad419..902841c77 100644 --- a/src/core/crypto/ctr_encryption_layer.cpp +++ b/src/core/crypto/ctr_encryption_layer.cpp @@ -8,11 +8,12 @@ namespace Core::Crypto { -CTREncryptionLayer::CTREncryptionLayer(FileSys::VirtualFile base_, Key128 key_, size_t base_offset) +CTREncryptionLayer::CTREncryptionLayer(FileSys::VirtualFile base_, Key128 key_, + std::size_t base_offset) : EncryptionLayer(std::move(base_)), base_offset(base_offset), cipher(key_, Mode::CTR), iv(16, 0) {} -size_t CTREncryptionLayer::Read(u8* data, size_t length, size_t offset) const { +std::size_t CTREncryptionLayer::Read(u8* data, std::size_t length, std::size_t offset) const { if (length == 0) return 0; @@ -28,7 +29,7 @@ size_t CTREncryptionLayer::Read(u8* data, size_t length, size_t offset) const { 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); - size_t read = 0x10 - sector_offset; + std::size_t read = 0x10 - sector_offset; if (length + sector_offset < 0x10) { std::memcpy(data, block.data() + sector_offset, std::min<u64>(length, read)); @@ -43,9 +44,9 @@ void CTREncryptionLayer::SetIV(const std::vector<u8>& iv_) { iv.assign(iv_.cbegin(), iv_.cbegin() + length); } -void CTREncryptionLayer::UpdateIV(size_t offset) const { +void CTREncryptionLayer::UpdateIV(std::size_t offset) const { offset >>= 4; - for (size_t i = 0; i < 8; ++i) { + for (std::size_t i = 0; i < 8; ++i) { iv[16 - i - 1] = offset & 0xFF; offset >>= 8; } |