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Hardware-based security tagging schemes are promising mechanisms for enhancing the security of computer systems. The idea behind security tagging schemes is to attach labels to memory locations and/or registers to carry security information about the tagged data throughout the system. These tags are then used to protect system and user software from attacks and invalid information access. Researchers...
Pentium class processors have a very flexible hardware security system but common operating systems fail to take full advantage of this flexibility. This paper examines how hardware access is controlled under Microsoft Windows, Linux and FreeBSD and concludes that user space access to hardware IO ports is inadequate, either non-existent or implemented in such a way as to be insecure. A simple, novel...
As a classical security policy, DTE (domain and type enforcement) is usually used to protect the integrity of information and implemented in many famous security operating systems. But there are three main questions for most systems that have implemented DTE security policy as follows: 1) security policy enforcing module is easy to be tampered and bypass before loaded; 2) The content of security policy...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.