In this post I show you how to decode a DER encoded binary X509 certificate and use it to show you the contents of the Microsoft X509 certificate used as the UEFI Secure boot KEK for Windows 8 platforms.
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In this post, I discuss the new Secure Boot options made available on the Lenovo T430, T430i, T530, and T530i laptops as a result of the 2.05 firmware update. In this post, I show you how to obtain various information (vendor, version, revision and build date) about your UEFI firmware via the SMBIOS table. In this post I discuss the differences between how UEFI hands off memory to the Linux Kernel and how old-fashioned BIOSes handled off memory via E820. I am currently on the beautiful island of Cebu in the Philippines visiting with my old friend and colleague Charles Richmond at IISC and giving some talks on OS internals. I use a Lenovo Thinkpad laptop running Windows Vista Ultimate when travelling with Mozilla Firefox 3 as my default browser. Firefox 3 comes with a default Search Bar on the top right hand corner containing a number of default search engines including Google. If I type a search term in the Google Search Bar option, Google figures out behind the scenes that I am located in the Philippines, redirects me |
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