A description of a state of benevolence that exists between two or more parties. A measurement of the confidence in a benign outcome of a transaction involving two or more parties.

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76
votes
8answers
19k views

Why would someone trust DuckDuckGo or other providers with a similar privacy policy?

DuckDuckGo is a search engine that claims it will not share your results with others. Many of my skeptical coworkers think it may be a scam. Is there any proof that any web search engine will ...
76
votes
6answers
13k views

How much can I trust Tor?

How much can I depend on Tor for anonymity? Is it completely secure? My usage is limited to accessing Twitter and Wordpress. I am a political activist from India and I do not enjoy the freedom of ...
71
votes
11answers
18k views

Is there any technical security reason not to buy the cheapest SSL certificate you can find?

While shopping for a basic SSL cert for my blog, I found that many of the more well known Certificat Authorities have an entry-level certificate (with less stringent validation of the purchaser's ...
48
votes
12answers
6k views

How feasible is it for a CA to be hacked? Which default trusted root certificates should I remove?

This question has been revised & clarified significantly since the original version. If we look at each trusted certificate in my Trusted Root store, how much should I trust them? What factors ...
29
votes
7answers
2k views

Is it safe to trust a Docker container?

When it comes to Docker, it is very convenient to use a third party container that already exist to do what we want. The problem that is those containers can be very complicated and have a large ...
26
votes
11answers
3k views

Is it safe to use a weak password as long as I have two-factor authentication?

I'm careful to use strong passwords (according to How Big is Your Haystack, my passwords would take a massive cracking array 1.5 million centuries to crack), I don't reuse passwords across sites, and ...
22
votes
4answers
785 views

Security seals and the “perception of safety”?

I clearly understand that the security seals (verisign or norton secure etc.) shown on banking and other websites are generated using a script and available only after an ssl certificate is purchased ...
22
votes
1answer
5k views

Is there a standard for printing a public key as a barcode?

Is there a standard for storing a public key printed on paper? Say, I want to hand out business cards with my public key pre-printed on them at a key signing party to help build the web of trust. My ...
19
votes
7answers
3k views

What are some good website security scanning solutions?

What are some good web-based website security scanning solutions? I'm not too concerned if they are web-based solutions, or software that can be run locally. Generally, I'm looking for something we ...
15
votes
12answers
885 views

Is this much distrust really necessary?

In IT Security and computer power users there seems to be an excessive amount of distrust. They don't do anything or use anything because of this distrust, or use what seems like an excessive amount ...
15
votes
3answers
1k views

What are the risks of a Certificate Authority hack for 'the average user'?

Recently the DigiNotar CA was hacked, and rogue certificates were issued. Since they also issue certificates on behalf of the Dutch government, the government made a statement about it as well, ...
12
votes
4answers
9k views

Apparently PayPal-affiliated site with very suspect security

History I got an email this afternoon to my gmail from "paypal@e.paypal.com" with mailed-by: na.e.paypal.com and signed-by: e.paypal.com. Gmail did not report it as spam/phishing/suspicious and it ...
11
votes
3answers
4k views

Is it possible to get all the data I send through wifi?

Is it possible, that the network administrator (wpa2 wifi network) can log all the data the users send and then get password out of it? I know it is not possible to get the password if I'm surfing ...
10
votes
4answers
2k views

Why do browsers warn about mixed content for images?

I'm dealing with a phpBB forum user who wants to set up SSL on their entire site to secure user credentials and "private" parts of the website. However, they want to preserve the traditional forum ...
9
votes
4answers
170 views

How to trust ICs?

While it is theoretically possible to thoroughly examine the source code of Open Source Software to check for backdoors (neglecting a Ken Thompson hack), and given sufficiently adequate knowledge in ...
9
votes
1answer
245 views

I want trusted SMIME certificates for 3rd parties. Is this a reasonable configuration?

I want to send out SMIME certificates with my emails, and want to deploy the following PKI Root01 (All EKU, All Constrants, No Restrictions) PolicyInt01 (Internal applications, not trusted by 3rd ...
9
votes
4answers
5k views

Is client side encryption really better than server side?

Web application may encrypt all user data at client side to convince users that it can't decrypt them. When user enters password, it's used to encrypt data in browser and then it's sent to server in ...
8
votes
8answers
1k views

How do I choose whether to trust a particular website?

From @GrahamLee's comment over on this question, this is a very good point: How do I choose whether to trust a particular website when the only information I have relevant to my trust decision is the ...
8
votes
4answers
950 views

How bad it is to install another company's root certificate to your server?

Our company uses a web server with a couple of web sites on it (private and public, over HTTP and HTTPS, some low risk and some high risk including online payments or other sensitive data for ...
8
votes
3answers
1k views

Is it safe to generate passwords online?

I usually generate strong passwords using various online tools. Some time ago I mentioned it to friend of mine and he looked at me as if my life was one big fail. Is it really so unsafe to generate ...
7
votes
4answers
269 views

How to determine whether site is secure from common user's point of view?

What should be done (or at least declared) so end-users, visitors will start trusting your website? Some thoughts: secured login (via https) privacy policy (hidden email and other private ...
7
votes
4answers
1k views

Alternative to “web of trust”

Let's say I have an SMIME platform where I want to easily establish trust across the entire world for a particular purpose, for example for sharing valid financial information. I think that a ...
7
votes
1answer
445 views

How safe is “trust this computer” option for websites?

Many sites have a "trust this computer" option that allows one to bypass some security measures (ex.: with Google's 2-step authentication enabled, one does not need to enter the phone's code if the ...
7
votes
1answer
960 views

How does an end user differentiate between OV and DV certificates?

This is a very good link that explains the different types of SSL certificates and level of trust provided by them. An Extended Validation (EV) certificate it is easily identified by the green color ...
7
votes
2answers
347 views

In Linux, when I consider trusting a new software source, what do I need to evaluate?

When I'm using the Linux software PackageKit, I get confused about what specific items of information I will need in order to decide whether to authorize software installation from a new software ...
6
votes
3answers
642 views

Are online hash calculators dangerous?

I was about to use an online MD5 checksum calculator when I realized that my result could be added to a database. This is significant because the string I was going to type in was my bank password. ...
6
votes
1answer
884 views

Is Man-In-The-Middle necessary for a CA to read HTTP plaintext?

Although I understand the basic theory behind certificates and asymmetric cryptography, I'm not quite sure on the details of the X.509 protocol. I'm wondering what attacker model a given CA requires ...
6
votes
1answer
3k views

What is the exact meaning of this gpg output regarding trust?

When I import signatures or receive a key with gpg, it outputs some cryptic lines like: gpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model gpg: depth: 0 valid: 1 signed: 16 trust: ...
6
votes
2answers
782 views

TPM and storage of keys

A TPM hardware device has very limited non-volatile protected memory just sufficient to store the EK (Endorsement Key) and SRK (Storage Root Key). How does a TPM allow nearly unlimited number of ...
6
votes
1answer
102 views

Why does a web site operator need to trust an openid provider?

I am working on a web site and am considering using OpenID for authentication. The site will have some low cost ($3-$5) premium services, but will not be protecting particularly sensitive user data, ...
5
votes
3answers
921 views

How to verify crypto engine?

If I understand this correctly, when I use a cryptographic (hardware) engine, I have to trust it. Are there any cryptographic algorithms with properties that allow me to verify the correctness of an ...
5
votes
1answer
176 views

How can a new website create trust with users?

Earlier I asked a question on how to authenticate business identities, now I am wondering on the other side (the user side). There is also How do I choose whether to trust a particular website? How ...
5
votes
1answer
787 views

Dynamic vs Static root of trust

In TCG specification (for TPM devices) they specify how a static root of trust can be built up using secure boot and trusted boot. An alternative method appears to be Intel's Dynamic boot using their ...
5
votes
2answers
481 views

TPM- Symmetric key storage

I understand that the TPM can be used to store an unlimited number of keys. However I am left with a few questions: Presuming the TPM is connected on the LPC what protects the data travelling across ...
5
votes
1answer
373 views

'Trusted CA Certificates' and 'Trusted remote Certificates'

What is the difference between Trusted CA Certificates and Trusted remote Certificates?
5
votes
1answer
277 views

Trusted Timestamping Scope and Real-World Uses

What security assurances does Trusted Timestamping based on Cryotography provide? What are the real-world uses of Trusted Timestamping?
5
votes
2answers
178 views

How can a certificate be valid in the Hybrid Model but not in the Chain Model?

All dates in European format! I am learning about validity models, but the solution for this assignment confuses me. Translation: The relevant data for the applicable certificates are shown ...
4
votes
1answer
107 views

What is the current status of trust management?

It is almost 30 years now since Ken Thompson presented his widely known ACM Turing Award Lecture "Reflections on Trusting Trust". What is the current status of practice and research on trust ...
3
votes
3answers
113 views

How can DH provide a known secret to two parties over an unencrypted connection without it being intercepted via MITM?

Without using Private and Public keypairs, i do not understand how Diffie-Hellman is able to generate a secret key between two parties on the internet without passing something between that could be ...
3
votes
2answers
174 views

GPG key trust after a signing party

I might be totally misunderstanding the concept of web-of-trust, but imagine the following scenario: I generate my key, then go to a key signing party, and after, I import all the keys which ...
3
votes
1answer
1k views

Hiding backdoors in Open Source code in other languages than C and C++?

I am referring to The Underhanded C Contest and Hiding Backdoors in plain sight. They demonstrate, that you can with some cleverness, write Open Source code, publish the code and hide a backdoor in ...
3
votes
3answers
220 views

Trusting SSL and the Trust Chain

As we all know, when an SSL Certificate is assigned, there is a trust chain that is created for verify everyone from the Certificate Authority to the actual website's SSL Certificate. Thanks to a ...
3
votes
1answer
410 views

Is there a way to store user files without being able to decrypt them?

I'd want to build a secure file storage web application. Currently ordinary password authentication is used for login. After login this password is used for encryption and decryption of user files at ...
3
votes
1answer
268 views

Should I trust and play every embedded video on Facebook?

Regarding to trusted sites like YouTube, should I trust other videos when embedded to Facebook, usually, when user shares a link a thumbnail image will be created and previewed, then, we need only to ...
3
votes
2answers
286 views

On an “uncritical” site, is there any reason to NOT trust a self-signed certificate?

There are many sites that have self-signed ("untrusted" in Firefox) certificates. I then have the option to trust them or not. If I not trust them I can either leave the site or only visit the site ...
3
votes
1answer
127 views

Who watches the watchmen? User empowerment over firewall behaviour on a personal computer

I've been exploring the gamut of free Windows firewall applications recently and have encountered the following problem: The better firewalls are excellent at stopping other apps from phoning home ...
3
votes
3answers
458 views

Backup personal email on VPS - privacy, security and trust risks

FastMail.fm hosts my personal email account. Now they claim to have reliable backup services, but I'd like to have my own copy of my email archives. What I'd like to do is back up to my VPS, which ...
3
votes
2answers
184 views

Trust vs Reputation

There is a lot of academic papers that use trust and reputation in an interchangeably manner. Is there any clear and concrete definition to distinguish these two terms in various contexts? Is these ...
3
votes
1answer
80 views

Validating correctness amongst untrusted answers

I'm toying around a distributed computing project. The client application asks for a problem to solve. The server returns a problem description from a "problems pool". When the client finishes, it ...
3
votes
2answers
192 views

Is there a trusted independent firewall review company?

I don't know how to write this without it sounding like a plug (lol), but it's not. So please don't close-vote it, even if you really want your editor badge. Here goes: There's this site called ...