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Revue de presse francophone :
- Appaloosa AppDome nouent un partenariat pour accompagner les entreprises dans le déploiement et la protection des applications mobiles
- D-Link offre une avec un routeur VPN sans fil AC
- 19 mai Paris Petit-Déjeuner Coreye Développer son business à l'abri des cyberattaques
- POYNTING PRESENTE LA NOUVELLE ANTENNE OMNI-291, SPECIALE MILIEU MARITIME, CÔTIER ET MILIEU HUMIDE
- Flexera Software Les utilisateurs français de PC progressent dans l'application de correctifs logiciels, mais des défis de tailles subsistent
- Riverbed lance SD-WAN basé sur le cloud
- Fujitsu multi-récompensé VMware lui décerne plusieurs Partner Innovation Awards à l'occasion du Partner Leadership Summit
- Zscaler Private Access sécuriser l'accès à distance en supprimant les risques inhérents aux réseaux privés virtuels
- QNAP annonce la sortie de QTS 4.2.1
- Une enquête réalisée par la société de cyber sécurité F-Secure a décelé des milliers de vulnérabilités graves, potentiellement utilisables par des cyber criminels pour infiltrer l'infrastru
- Trouver le juste équilibre entre une infrastructure dédiée et cloud le dilemme de la distribution numérique
- 3 juin - Fleurance - Cybersécurité Territoires
- Cyber-assurances Seules 40 pourcents des entreprises françaises sont couvertes contre les violations de sécurité et les pertes de données
- Des étudiants de l'ESIEA inventent CheckMyHTTPS un logiciel qui vérifie que vos connexions WEB sécurisées ne sont pas interceptées
- Les produits OmniSwitch d'Alcatel-Lucent Enterprise ALE gagnent en sécurité pour lutter contre les cyber-attaques modernes

Dernier articles de SecuObs :
- DIP, solution de partage d'informations automatisée
- Sqreen, protection applicative intelligente de nouvelle génération
- Renaud Bidou (Deny All): "L'innovation dans le domaine des WAFs s'oriente vers plus de bon sens et d'intelligence, plus de flexibilité et plus d'ergonomie"
- Mises à jour en perspective pour le système Vigik
- Les russes ont-ils pwn le système AEGIS ?
- Le ministère de l'intérieur censure une conférence au Canada
- Saut d'air gap, audit de firmware et (in)sécurité mobile au programme de Cansecwest 2014
- GCHQ: Le JTRIG torpille Anonymous qui torpille le JTRIG (ou pas)
- #FIC2014: Entrée en territoire inconnu
- Le Sénat investit dans les monnaies virtuelles

Revue de presse internationale :
- VEHICLE CYBERSECURITY DOT and Industry Have Efforts Under Way, but DOT Needs to Define Its Role in Responding to a Real-world Attack
- Demand letter served on poll body over disastrous Comeleak breach
- The Minimin Aims To Be The Simplest Theremin
- Hacking group PLATINUM used Windows own patching system against it
- Hacker With Victims in 100 Nations Gets 7 Years in Prison
- HPR2018 How to make Komboucha Tea
- Circuit Bender Artist bends Fresnel Lens for Art
- FBI Director Suggests iPhone Hacking Method May Remain Secret
- 2016 Hack Miami Conference May 13-15, 2016
- 8-bit Video Wall Made From 160 Gaming Keyboards
- In An Era Of Decline, News Sites Can t Afford Poor Web Performance
- BeautifulPeople.com experiences data breach 1m affected
- Swedish Air Space Infringed, Aircraft Not Required
- Why cybercriminals attack healthcare more than any other industry
- Setting the Benchmark in the Network Security Forensics Industry

Annuaire des videos
- FUZZING ON LINE PART THREE
- Official Maltego tutorial 5 Writing your own transforms
- Official Maltego tutorial 6 Integrating with SQL DBs
- Official Maltego tutorial 3 Importing CSVs spreadsheets
- install zeus botnet
- Eloy Magalhaes
- Official Maltego tutorial 1 Google s websites
- Official Maltego tutorial 4 Social Networks
- Blind String SQL Injection
- backdoor linux root from r57 php shell VPS khg crew redc00de
- How To Attaque Pc With Back Track 5 In Arabique
- RSA Todd Schomburg talks about Roundup Ready lines available in 2013
- Nessus Diagnostics Troubleshooting
- Panda Security Vidcast Panda GateDefender Performa Parte 2 de 2
- MultiPyInjector Shellcode Injection

Revue Twitter
- RT @fpalumbo: Cisco consistently leading the way ? buys vCider to boost its distributed cloud vision #CiscoONE
- @mckeay Looks odd... not much to go on (prob some slideshow/vid app under Linux)
- [SuggestedReading] Using the HTML5 Fullscreen API for Phishing Attacks
- RT @BrianHonan: Our problems are not technical but cultural. OWASP top 10 has not changed over the years @joshcorman #RSAC
- RT @mikko: Wow. Apple kernels actually have a function called PE_i_can_has_debugger:
- [Blog Spam] Metasploit and PowerShell payloads
- PinkiePie Strikes Again, Compromises Google Chrome in Pwnium Contest at Hack in the Box: For the second time thi...
- @mikko @fslabs y'all wldn't happen to have lat/long data sets for other botnets, wld you? Doing some research (free/open info rls when done)
- RT @nickhacks: Want to crash a remote host running Snow Leopard? Just use: nmap -P0 -6 --script=targets-ipv6-multicast-mld #wishiwaskidding
- An inexpensive proxy service called is actually a front for #malware distribution -

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Revue de presse : security, microsoft, windows, hacker, attack, network, vulnerability, google, exploit, malware, internet, remote, iphone

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Revue Twitter : security, linux, botnet, attack, metasploit, cisco, defcon, phish, exploit, google, inject, server, firewall

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Top bi-hebdo des articles de SecuObs
- [Ettercap – Partie 2] Ettercap par l'exemple - Man In the Middle et SSL sniffing
- [Infratech - release] version 0.6 de Bluetooth Stack Smasher
- [IDS Snort Windows – Partie 2] Installation et configuration
- [Infratech - vulnérabilité] Nouvelle version 0.8 de Bluetooth Stack Smasher
- Mises à jour en perspective pour le système Vigik
- USBDumper 2 nouvelle version nouvelles fonctions !
- EFIPW récupère automatiquement le mot de passe BIOS EFI des Macbook Pro avec processeurs Intel
- La sécurité des clés USB mise à mal par USBDUMPER
- Une faille critique de Firefox expose les utilisateurs de Tor Browser Bundle
- Installation sécurisée d'Apache Openssl, Php4, Mysql, Mod_ssl, Mod_rewrite, Mod_perl , Mod_security

Top bi-hebdo de la revue de presse
- StackScrambler and the Tale of a Packet Parsing Bug

Top bi-hebdo de l'annuaire des videos
- DC++ Botnet. How To DDos A Hub With Fake IPs.
- Comment creer un server botnet!!!!(Réseau de pc zombies)
- Defcon 14 Hard Drive Recovery Part 3

Top bi-hebdo de la revue Twitter
- RT @secureideas: I believe that all the XSS flaws announced are fixed in CVS. Will test again tomorrow if so, release 1.4.3. #BASESnort
- Currently, we do not support 100% of the advanced PDF features found in Adobe Reader... At least that's a good idea.
- VPN (google): German Foreign Office Selects Orange Business for Terrestrial Wide: Full
- @DisK0nn3cT Not really, mostly permission issues/info leak...they've had a couple of XSS vulns but nothing direct.
- Swatting phreaker swatted and heading to jail: A 19-year-old American has been sentenced to eleven years in pris..
- RT @fjserna You are not a true hacker if the calc.exe payload is not the scientific one... infosuck.org/0x0035.png

Top des articles les plus commentés
- [Metasploit 2.x – Partie 1] Introduction et présentation
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- Les navigateurs internet, des mini-systèmes d’exploitation hors de contrôle ?
- Yellowsn0w un utilitaire de déblocage SIM pour le firmware 2.2 des Iphone 3G
- CAINE un Live[CD|USB] pour faciliter la recherche légale de preuves numériques de compromission
- Nessus 4.0 placé sous le signe de la performance, de l'unification et de la personnalisation
- [Renforcement des fonctions de sécurité du noyau Linux – Partie 1] Présentation
- [IDS Snort Windows – Partie 1] Introduction aux IDS et à SNORT
- Origami pour forger, analyser et manipuler des fichiers PDF malicieux

Nine Questions about Hidden Services

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Nine Questions about Hidden Services

Par The Tor Blog blogs
Le [2015-11-17] à 18:36:55



Présentation : This is an interview with a Tor developer who works on hidden services. Please note that Tor Browser and hidden services are two different things. Tor Browser downloadable at TorProject.org allows you to browse, or surf, the web, anonymously. A hidden service is a site you visit or a service you use that uses Tor technology to stay secure and, if the owner wishes, anonymous. The secure messaging app ricochet is an example of a hidden service. Tor developers use the terms hidden services and onion services interchangeably. 1. What are your priorities for onion services development Personally I think it s very important to work on the security of hidden services that s a big priority. The plan for the next generation of onion services includes enhanced security as well as improved performance. We ve broken the development down into smaller modules and we re already starting to build the foundation. The whole thing is a pretty insane engineering job. 2. What don't people know about onion Services Until earlier this year, hidden services were a labor of love that Tor developers did in their spare time. Now we have a very small group of developers, but in 2016 we want to move the engineering capacity a bit farther out. There is a lot of enthusiasm within Tor for hidden services but we need funding and more high level developers to build the next generation. 3. What are some of Tor's plans for mitigating attacks The CMU attack was fundamentally a guard node attack guard nodes are the first hop of a Tor circuit and hence the only part of the network that can see the real IP address of a hidden service. Last July we fixed the attack vector that CMU was using it was called the RELAY_EARLY confirmation attack and since then we've been divising improved designs for guard node security. For example, in the past, each onion service would have three guard nodes assigned to it. Since last September, each onion service only uses one guard node -it exposes itself to fewer relays. This change alone makes an attack against an onion service much less likely. Several of our developers are thinking about how to do better guard node selection. One of us is writing code on this right now. We are modeling how onion services pick guard nodes currently, and we're simulating other ways to do it to see which one exposes itself to fewer relays the fewer relays you are exposed to, the safer you are. We ve also been working on other security things as well. For instance, a series of papers and talks have abused the directory system of hidden services to try to estimate the activity of particular hidden services, or to launch denial-of-service attacks against hidden services. We re going to fix this by making it much harder for the attacker's nodes to become the responsible relay of a hidden service say, catfacts and be able to track uptime and usage information. We will use a distributed random number generator --many computers teaming up to generate a single, fresh unpredictable random number. Another important thing we're doing is to make it impossible for a directory service to harvest addresses in the new design. If you don't know a hidden service address, then under the new system, you won't find it out just by hosting its HSDir entry. There are also interesting performance things We want to make .onion services scalable in large infrastructures like Facebook--we want high availability and better load balancing we want to make it serious. Load balancing distributes the traffic load of a website to multiple servers so that no one server gets overloaded with all the users. Overloaded servers stop responding and create other problems. An attack that purposely overloads a website to cause it to stop responding is called a Denial of Service DoS attack. - Kate There are also onion services that don t care to stay hidden, like Blockchain or Facebook we can make those much faster, which is quite exciting. Meanwhile Nick is working on a new encryption design--magic circuit crypto that will make it harder to do active confirmation attacks. Nick Mathewson is the co-founder of the Tor Project and the chief architect of our software. Active confirmation attacks are much more powerful than passive attacks, and we can do a better job at defending against them. A particular type of confirmation attack that Nick's new crypto is going to solve is a tagging attack Roger wrote a blog post about them years ago called, One Cell Is Enough it was about how they work and how they are powerful. 4. Do you run an onion service yourself Yes, I do run onion services I run an onion services on every box I have. I connect to the PC in my house from anywhere in the world through SSH I connect to my onion service instead of my house IP. People can see my laptop accessing Tor but don t know who I am or where I go. Also, onion services have a property called NAT-punching NAT Network Address Translation . NAT blocks incoming connections it builds walls around you. Onion services have NAT punching and can penetrate a firewall. In my university campus, the firewall does not allow incoming connections to my SSH server, but with an onion service the firewall is irrelevant. 5. What is your favorite onion service that a nontechnical person might use I use ricochet for my peer to peer chatting--It has a very nice UI and works well. 6. Do you think it s safe to run an onion service It depends on your adversary. I think onion services provide adequate security against most real life adversaries. However, if a serious and highly motivated adversary were after me, I would not rely solely on the security of onion services. If your adversary can wiretap the whole Western Internet, or has a million dollar budget, and you only depend on hidden services for your anonymity then you should probably up your game. You can by add more layers of anonymity by buying the servers you host your hidden service anonymously e.g. with bitcoin so that even if they deanonymize you they can't get your identity from the server. Also studying and actually understanding the Tor protocol and its threat model is essential practice if you are defending against motivated adversaries. 7. What onion services don t exist yet that you would like to see Onion services right now are super-volatile they may appear for three months and then they disappear. For example, there was a Twitter clone, Tor statusnet it was quite fun--small but cozy. The guy or girl who was running it couldn t do it any longer. So, goodbye It would be very nice to have a Twitter clone in onion services. Everyone would be anonymous. Short messages by anonymous people would be an interesting thing. I would like to see apps for mobile phones using onion services more SnapChat over Tor, Tinder over Tor using Orbot or whatever. A good search engine for onion services. This volatility comes down to not having a search engine you could have a great service, but only 500 sketchoids on the Internet might know about it. Right now, hidden services are misty and hard to see, with the fog of war all around. A sophisticated search engine could highlight the nice things and the nice communities those would get far more traffic and users and would stay up longer. The second question is how you make things. For many people, it s not easy to set up an onion service. You have to open Tor, hack some configuration files, and there's more. We need a system where you double click, and bam, you have an onion service serving your blog. Griffin Boyce is developing a tool named Satori to do this it's available in Google Chrome and Android so far. If we have a good search engine and a way for people to start up onion services easily, we will have a much nicer and more normal Internet in the onion space. 8. What is the biggest misconception about onion services People don't realize how many use cases there are for onion services or the inventive ways that people are using them already. Only a few onion services ever become well known and usually for the wrong reasons. I think it ties back to the previous discussion-- the onion services we all enjoy have no way of getting to us. Right now, they are marooned on their island of hiddenness. 9. What is the biggest misconception about onion services development It s a big and complex project it s building a network inside a network building a thing inside a thing. But we are a tiny team. We need the resources and person power to do it. Interview conducted by Kate Krauss

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