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Design and implementation of multilevel security architectures
No full textThe problem of securely storing and processing sensitive data is paramount in many sectors. But ICT Security is not a Defense prerogative. Events like Vatileaks and Panama
Papers, after Snowden's disclosures, brought to prominence the information security
problem. We live in a world that requires from us to be always-on, always-connected.
Technological progress and the need to process and share always bigger amount of data
led to the inception of distributed systems, smart sensors/networks, cloud computing
etc. and transformed the Internet in a high bandwidth medium. We are surrounded
by devices and use applications that track and collect our personal information that
should be properly protected. Sensitive data should be accessed only by people with
valid authorizations and with a specific need-to-know that could affect only a specific
subset of data necessary to perform some operations. The requirement to protect information characterized by a hierarchy of sensitivity levels led to the definition of Multilevel
Security. In the last years a new paradigm called Multiple Independent Levels of Secu-
rity/Safety (MILS) seems to be able to effectively address the problem.
This thesis illustrates the design and the implementation of Multilevel Security Archi-
tectures. We pinpointed the drawbacks of the currently proposed solutions and analyzed
the problem from different perspectives: high-assurance security requirements, certi cation according to international schemes, and performance. We proposed an innovative
MILS Distributed Architecture and implemented a specific MILS component that enforces the security policy of connecting domains characterized by different classification
level information. We also faced the multilevel-related covert channel problem proposing
a novel detection algorithm and building an open source covert timing channel in order
to evaluate its performance
Mogadiscio - Chiesa del Sacro Cuore
No full textImage taken from the website "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) and included in the Somali Archive with the permission of the owner of the collection, Mr. Davies.Sawir laga soo qaatay mareegta "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/), waxaana lagu biiriyay Kaydka af Soomaaliga, kaddib markii oggolaasho laga helay qofka diyaariyay oo ah Rick Davies.Immagine tratta dal sito "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) e inclusa nell'Archivio Somalia con il consenso del curatore della collezione Rick Davies
1750 French map of the north east of Africa
No full textImage taken from the website "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) and included in the Somali Archive with the permission of the owner of the collection, Mr. Davies.Sawirkan waxaa laga soo qaatay website-ka "Mogadishu(https://mogadishuimages.wordpress.com/), waxaana lagu biiriyay Kaydka Soomaaliya, kaddib markii ruqsad laga helaay ninka soo ururiyay sawirrada, Mr. Davies.Immagine tratta dal sito "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) e inclusa nell'Archivio Somalia con il consenso del curatore della collezione Rick Davies
“Bimbi”
No full textImmagine tratta dal sito "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) e inclusa nell'Archivio Somalia con il consenso del curatore della collezione Rick Davies.Sawir laga soo qaatay mareegta "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/), waxaana lagu biiriyay Kaydka Soomaaliya, kaddib markii oggolaasho laga helay qofka diyaariyay oo ah Rick Davies.Image taken from the website "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) and included in the Somali Archive with the permission of the owner of the collection, Mr. Davies
Iskushuban – Italian administration building
No full textImmagine tratta dal sito "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) e inclusa nell'Archivio Somalia con il consenso del curatore della collezione Rick Davies.Sawir laga soo qaatay mareegta "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/), waxaana lagu biiriyay Kaydka Soomaaliya, kaddib markii oggolaasho laga helay qofka diyaariyay oo ah Rick Davies.Image taken from the website "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) and included in the Somali Archive with the permission of the owner of the collection, Mr. Davies
La via principale di Mogadiscio
No full textImage taken from the website "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) and included in the Somali Archive with the permission of the owner of the collection, Mr. Davies.Sawir laga soo qaatay mareegta "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/), waxaana lagu biiriyay Kaydka Soomaaliya, kaddib markii oggolaasho laga helay qofka diyaariyay oo ah Rick Davies.Immagine tratta dal sito "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) e inclusa nell'Archivio Somalia con il consenso del curatore della collezione Rick Davies
Mogadiscio
No full textImmagine tratta dal sito "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) e inclusa nell'Archivio Somalia con il consenso del curatore della collezione Rick Davies.Sawir laga soo qaatay mareegta "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/), waxaana lagu biiriyay Kaydka Soomaaliya, kaddib markii oggolaasho laga helay qofka diyaariyay oo ah Rick Davies.Image taken from the website "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) and included in the Somali Archive with the permission of the owner of the collection, Mr. Davies
Mogadishu – Panorama
No full textImage taken from the website "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) and included in the Somali Archive with the permission of the owner of the collection, Mr. Davies.Sawir laga soo qaatay mareegta "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/), waxaana lagu biiriyay Kaydka Soomaaliya, kaddib markii oggolaasho laga helay qofka diyaariyay oo ah Rick Davies.Immagine tratta dal sito "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) e inclusa nell'Archivio Somalia con il consenso del curatore della collezione Rick Davies
Mogadishu, circa 1550
No full textImage taken from the website "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) and included in the Somali Archive with the permission of the owner of the collection, Mr. Davies.Sawirkan waxaa laga soo qaatay "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) waxaan lagu biiriyaya Kaydka Soomaaliyakaddib markii ruqsad laga helay Rick Davies.Immagine tratta dal sito "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) e inclusa nell'Archivio Somalia con il consenso del curatore della collezione Rick Davies
Mogadishu, circa 1740
No full textImage taken from the website "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) and included in the Somali Archive with the permission of the owner of the collection, Mr. Davies.Sawirkan waxaa laga soo qaatay mareegta "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) waxaan lagu biiriyay Kaydka Soomaaliya kaddib markii laga helay ruqsad Mr. Davies.Immagine tratta dal sito "Mogadishu: Images from the past" (https://mogadishuimages.wordpress.com/) e inclusa nell'Archivio Somalia con il consenso del curatore della collezione Rick Davies