まずNTFSの暗号化機能から解説しよう。これはEFS（Encrypting File System）と呼ばれ、NTFS形式でフォーマットされたドライブで利用できる（FAT形式では利用不可）。Windows XPのProfessional Edition以上に装備され、家庭用のHome Editionでは使えない。EFSは企業に向けた標準 ...

The key used for these kinds of symmetric encryption is called as File Encryption Key (or FEK). This FEK is in return encrypted with a public or a private key algorithm like RSA and stored with the ...

The Encrypting File System, while serving a need, can also cause big headaches—especially with the XP implementation. Here’s how to do it right. Most administrators are gadget-heads to some extent. We ...

While some businesses rely on computers more than others, most value the data they store on the machines and may consider at least some of it private or confidential. Even with the best security ...

Inside of Windows is a methodology called Encrypting File System (EFS). It works on individual files or folders, rather than at the whole disk level like BitLocker does. Researchers at SafeBreach have ...

Security researchers today published the details of how a ransomware attack could abuse the Windows Encrypting File System (EFS). Several major security vendors have released patches to protect ...