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Nikos Mavrogiannopoulos
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Nikos Mavrogiannopoulos

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Software Isolation in Linux
Starting from the assumption that software will always have bugs, we
need a way to isolate and neutralize the effects of the bugs. One
approach is by isolating components of the software such that a breach
in one component doesn't compromise another. Tha...
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Nikos Mavrogiannopoulos

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What about POODLE?
Yesterday POODLE was announced, a fancy named new attack on the SSL 3.0 protocol, which relies on the browser's non-standard fallback mechanism. The issue is mainly in the SSL 3.0 protocol which has known vulnerabilities and shouldn't be negotiated unless i...
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software has bugs... now what?
The recent bugs uncovered in TLS/SSL implementations, were received in the blogo-sphere with a quest for the perfectly secure implementations, that have no bugs. That is the modern quest for perpetual motion. Nevertheless, very few bothered by the fact that...
The recent bugs uncovered in TLS/SSL implementations, were received in the blogo-sphere with a quest for the perfectly secure implementations, that have no bugs. That is the modern quest for perpetual motion. Nevertheless, ve...
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A while ago I was writing on why we need an alternative authentication method in TLS. Then I described the SSH-style authentication and how it was implemented it GnuTLS. Another approach is the DANE p...
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Nikos Mavrogiannopoulos

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An overview of GnuTLS 3.4.x
This year GnuTLS 3.4.0 was released, as our stable-next  branch, i.e., the branch to replace the current stable branch of GnuTLS (which as of today is the 3.3.x branch). During that time, we also moved our development infrastructure from gitorious to gitlab...
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A quick overview of GnuTLS development in 2014
2014 was a very interesting year in the development of GnuTLS. On the development side, this year we have incorporated patches with fixes or enhanced functionality from more than 25 people according to openhub, and the main focus was moving GnuTLS 3.3.x fro...
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Nikos Mavrogiannopoulos

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Inside an SSL VPN protocol
Some time ago when trying to provide a way to interconnect the routers of the company I was working on, I attempted to evaluate the various secure VPN solutions available as free software. As I was already familiar with cryptography and secure communication...
Some time ago when trying to provide a way to interconnect the routers of the company I was working on, I attempted to evaluate the various secure VPN solutions available as free software. As I was already familiar with crypt...
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Anyway - if I ever find time I'll join the list :) thanks for the discussion.
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LGPLv3 is the latest version of the GNU Lesser General Public License. It follows the successful LGPLv2.1 license, and was released by Free Software Foundation as a counterpart to its GNU General Publ...
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Have him in circles
231 people
Konstantin Khankin's profile photo
Robert Tomohamat's profile photo
Voulariba S's profile photo
Markos Giannoulis's profile photo
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hamed madadian's profile photo
Aggelis Aggelis's profile photo
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Aggelos Karalias's profile photo
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Introduction
I've worked as a software architect and engineer in various places in europe. I've studied mathematics and hold a PhD in cryptography; my favorite of all the projects I've worked for is GnuTLS of which I am the principal author. Currently I work at Red Hat.
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