Showing posts with label Operating System. Show all posts
Showing posts with label Operating System. Show all posts

Tuesday, January 30, 2007

Vista DRM Cracked by Security Researcher

"Security researcher Alex Ionescu claims to have successfully bypassed the much discussed DRM protection in Windows Vista, called 'Protected Media Path' (PMP), which is designed to seriously degrade the playback quality of any video and audio running on systems with hardware components not explicitly approved by Microsoft. The bypass of the DRM protection was in turn performed by breaking the Driver Signing / PatchGuard protection in the new operating system. Alex is now quite nervous about what an army of lawyers backed by draconian copyright laws could do to him if he released the details, but he claims to be currently looking into the details of safely releasing his details about this at the moment though."

Sunday, January 28, 2007

Inside the Windows Vista Kernel

Reader trparky recommends an article on Technet (which, be warned, is rather chaotically formatted). Mark Russinovich, whose company Winternals Software was recently bought by Microsoft, has published the first of a series of articles on what's new in the Vista kernel. Russinovich writes: "In this issue, I'll look at changes in the areas of processes and threads, and in I/O. Future installments will cover memory management, startup and shutdown, reliability and recovery, and security. The scope of this article comprises changes to the Windows Vista kernel only, specifically Ntoskrnl.exe and its closely associated components. Please remember that there are many other significant changes in Windows Vista that fall outside the kernel proper and therefore won't be covered."