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All releases of Umbrella

  •  28 Apr 2005 13:37
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    Release Notes: Umbrella is now feature complete. The key ring, a new FSR implementation, and many performance optimizations were added.

    •  16 Mar 2005 14:50
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      Release Notes: Complete integration with GNU Privacy Guard to authenticate binaries was implemented. Use of hash tables for storing restrictions has been replaced by the FSR data structure, which mimics the "dentry" structs in the kernel. The Umbrella system call was eliminated and completely replaced by a /proc filesystem interface. The Umbrella code is now completely independent of all architectures and kernel subversions.

      •  23 Nov 2004 15:15
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        Release Notes: Some memory allocation bugs were found in the 0.5 release. These have been corrected, and an Umbrella patched Linux 2.6.9 kernel has been tested on a working system for more than six days. The script for signing files and a small description of how to use it were added to the distribution.

        •  07 Oct 2004 18:39
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          Release Notes: Now it is possible to import restrictions from signed binaries. Several memory allocation bugs have been corrected, resulting in increased stability. The code has been optimized in several places.

          •  01 Apr 2004 15:39
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            Release Notes: The power of restrictions on processes has really begun to show itself. The additional restrictions feature provides flexibility, while static restrictions makes sure that performance is good. Umbrella could restrict a mailprogram from forking new processes, from accessing all of the file system, and from accessing the network. In this way, attacks from attachments or malformed email messages could be avoided smoothly.

            •  10 Mar 2004 15:46
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              Release Notes: A restriction bit-vector has been implemented, so that more than one restriction can be set. This is, for now, a static list of restrictions to play around with to get a feel of the capabilities of Umbrella. This release includes the possibility to restrict access to important parts of the filesystem as well as access to IP networking. Finally, it is also possible to restrict a process from spawning new processes.

              •  02 Mar 2004 17:00
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                Release Notes:

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