Linked Questions

2
votes
2answers
3k views

Restrict Microsoft Network Policy Server (NPS) to only trust client certificates from a given CA?

I'm working on an install of a Microsoft Network Policy Sever (NPS) / RADIUS server for controlling access to corporate Wi-Fi using 802.1x / WPA2-Enterprise - using client certificates for ...
13
votes
1answer
3k views

Is it safe to let apt-get applications install root certificates?

I've recently installed Pinta, a program for drawing and image editing, and as part of the installation it installed 173 root certificates (see below). Is it normal practice to do so? Why does it ...
6
votes
1answer
121 views

Are there “master keys” that can be used to generate valid SSL keys?

I was in a discussion about SSL, and I was explaining that it's impossible to decrypt data sent over SSL if you don't have the key. Someone responded with the following, that really confused me: ...
5
votes
3answers
369 views

Why are root certificate authorites allowed to issue certificates for any domain?

Why are certificate authorites allowed to issue certificates trusted by browsers for any domain name? Doesn't that imply that one highjacked root certificate authority can issue trusted fake ...
3
votes
2answers
174 views

Can BlackBerry keep us safe from network providers

I recently brought a BlackBerry mobile and the reason I have gone with BB was the security it ensures and now I have a doubt. That said in the Internet, Massage from BBM will first reach Canada via ...
58
votes
4answers
5k views

What security risks are posed by software vendors deploying SSL Intercepting proxies on user desktops (e.g. Superfish)

There has been quite a bit of concern noted relating to the recent discovery that Lenovo are pre-installing a piece of Adware (Superfish) which has the capability of intercepting SSL traffic from ...
3
votes
2answers
149 views

Is it possible to use an open collection of default SSL certificates for my browser?

Browsers and Operating Systems come with a set of default SSL certificates for well known organizations, such as root certificates from CAs. I understand that the trust model is as follows: I pick (...
170
votes
4answers
22k views

Is there anything preventing the NSA from becoming a root CA?

There are now tons of Certification Authorities (CAs) that are trusted by default in major OS's, many of which are unrecognizable without online lookup or reference. While there have been attempts ...
26
votes
4answers
18k views

What Trusted Root Certification Authorities should I trust? [duplicate]

After two recent Slashdot articles (#1 #2) about questionable Root Certificates installed on machines, I decided to take a closer look at what I have installed on my machines. (I use current versions ...
5
votes
3answers
1k views

Certificate Transparency

From what I read here, if the intermediate CA has been compromised, a fake cert can be issued and the privacy of the end-users could be compromised as well. In order to remediate this situation, ...
238
votes
7answers
41k views

How do certification authorities store their private root keys?

Knowledge of a CA private key would allow MitM attackers to transparently supplant any certificates signed by that private key. It would also allow cyber criminals to start forging their own trusted ...
45
votes
4answers
3k views

What cryptographic flaw was exploited by Flame, to get its code signed by Microsoft?

Today, Microsoft released a security advisory warning that the "Flame" malware exploited a weakness in a cryptographic algorithm used by Microsoft Terminal Server Licensing Service, and was thereby ...
25
votes
4answers
22k views

Checklist on building an Offline Root & Intermediate Certificate Authority (CA)

Microsoft allows a CA to use Cryptography Next Generation (CNG) and advises of incompatibility issues for clients that do not support this suite. Here is an image of the default cryptography settings ...
8
votes
5answers
23k views

Are services like Hide My Ass and UnoDNS reasonably safe to use?

While in Germany, I want to keep using my Netflix account, watch PBS, CNBC. I have found following services: A VPN: https://hidemyass.com/vpn/promo/1/5/ A DNS: http://www.unotelly.com/unodns/ I an ...
9
votes
4answers
6k views

Is a mobile app more secure for mobile use than the “normal” website?

An untrained end user who uses a mobile web browser is vulnerable to phishing and can't easily verify the the authenticity (or security) of a website among other issues. Also, it is very easy to ...

15 30 50 per page