SSL (Secure Sockets Layer) and/or TLS (Transport Layer Security)

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2
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1answer
66 views

Which Browsers support TACK?

TACK is an IETF draft that allows certificate pinning for a TLS web server, provided the clients' bowsers support it. Unlike the certificate pinning feature available with HSTS preloading, the ...
4
votes
3answers
1k views

HeartBleed - How to detect compromised websites

Is there a way to determine as an end-user which HTTPS sites use OpenSSL? Due to heartbleed it is recommended that clients change their passwords that were sent over TLS recently as private keys may ...
1
vote
1answer
42 views

How does the Perspective addon work?

I've just installed the Perspetive addon in firefox. When I'm vistit, for example google, Perspective says the following message: Warning: Perspectives has NOT seen this certificate consistently. ...
9
votes
1answer
613 views

Are networks using EAP-TLS affected by Heartbleed?

Does the Heartbleed bug affect WiFi networks secured by WPA2-EAP in TLS mode? Since it's using TLS to secure connections between the server and clients, is it possible to attack the server using the ...
53
votes
4answers
20k views

Does Heartbleed mean new certificates for every SSL server?

If you haven't heard of the Heartbleed Bug, it's something to take a look at immediately. It essentially means that an attacker can exploit a vulnerability in many versions of OpenSSL to be able to ...
1
vote
1answer
74 views

DNS causing SSL errors

On my old ISP's DNS servers, sometimes https://www.facebook.com would return a cert for Akamai instead of Facebook. What I don't understand is that changing my DNS server to Googles (8.8.8.8) fixes ...
0
votes
2answers
61 views

Are SSL encrypted communications through a company network safe?

If I'm using Skype, Facebook, or another type of communication at my work, can the network administrator see my Skype and Facebook conversations, although its encrypted with SSL? I found this text: ...
0
votes
1answer
50 views

Why do I need a certificate to pin an SSL connection with AF Networking 2?

I am using the AF Networking 2 library and read that I need to include the server's certificate here. The client should be able to tell that the certificate is valid when it connects to the server, ...
0
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1answer
44 views

How does the Subterfuge toolkit bypass SSL? [closed]

As the title says, does anybody know how Subterfuge bypasses the SSL layer?
1
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2answers
54 views

Proving SSL need

I need to prove the need we have to install SSL certificates in our webservers. For that I've been requested to try obtaining sample credentials (in lab enviroment) during a http authentication ...
0
votes
0answers
19 views

SChannel SSL 3.0 error - OWA - Windows Server 2008 R2 [migrated]

I am receiving errors in the event log with ID numbers 36888 and 36874. The errors state "The following fatal alert was generated: 40. The internal error state is 1205." and "An SSL 3.0 connection ...
43
votes
5answers
3k views

How does a country block its citizens from accessing a site?

Following Turkey's recent social site blocks, I am wondering how can you efficiently accomplish that as a country. Similar for a big company. Blocking IPs → easy to circumvent, (proxys, tunnels, ...
2
votes
1answer
55 views

Finding the type of SSL certificate with cURL

This is a part of curl's verbose output when connecting to the HTTPS site of Google. * Server certificate: * subject: C=US; ST=California; L=Mountain View; O=Google Inc; CN=www.google.com * ...
8
votes
2answers
673 views

HTTPS login vs MITM attack

http://www.troyhunt.com/2013/05/your-login-form-posts-to-https-but-you.html My question is, if the threat is that someone controls your internet connection and can serve up bad login pages, couldn't ...
1
vote
2answers
50 views

How Web-proxy and Virtual-Hosting are complications for HTTPS?

While studying HTTPS and related transport layer security protocols(SSL/TLS), I came to know that HTTPS suffers from two complications - Web-Proxy and Virtual-Hosting. I can understand how ...
2
votes
1answer
69 views

REST security using only API key and SSL

I am looking to build a number of simple REST web services where: they only need to be called by server-side clients (i.e. no mobile/javascript/desktop) they are only accessible by HTTPS (no ...
0
votes
1answer
92 views

Accepting an untrusted security certificate?

What is the risk of accepting an untrusted site security certificate in your browser if you're not entering any data, but merely browsing the site?
1
vote
3answers
102 views

Protecting form post values when on https

I am dealing with a multi-step form, and I need to pass information from step 1 to step 2, then from step 2 to step 3, and so on. Step 1 contains a membership number and ID number entry, as well as ...
1
vote
3answers
106 views

Does http support encryption without https (like STARTTLS)?

Does http support encryption without https, akin to STARTTLS in smtp? This may sound like a stupid question, but just think about it. Banks require strong encryption, and cannot do business without ...
1
vote
2answers
290 views

Self-signed SSL certificate on chromebook (and android)

I am having the following problem on both my android phone and on my chromebook. I'm running a website on an internal server (10.3.3.3) using nginx with a self-signed ssl certificate. Since it is just ...
1
vote
4answers
428 views

nginx recommended ssl_ciphers for security, compatibility - with PFS

I'm currently using nginx with the following ciphers: ssl_ciphers HIGH:!aNULL:!eNULL:!LOW:!ADH:!RC4:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS; I would like to maintain compatibility to older ...
1
vote
0answers
60 views

Threats against website running without TLS but with PGP messages

Are there any threats against a web site that isn't running SSL but uses PGP to encrypt all information to the server (except session identifier) The information flow is as such: 1. Session ID set on ...
4
votes
1answer
177 views

WebRTC P2P SSL - Where are the keys generated?

My understanding is that with the WebRTC peer-to-peer data API, communications between peers are encrypted via a modified form of SSL. Where are the keys for the peer-to-peer SSL connection generated, ...
2
votes
2answers
82 views

Does SNI reveal the virtualhost during the CONNECT query to a HTTPS proxy?

Also, the name of the actual virtualhost is going through unencrypted or not?
-1
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0answers
20 views

TLS/SSL's usage of Non-Ephemeral DH vs DHE [migrated]

These questions revolve around DH and ECDH vs DHE and ECDHE. Specifically within the context of TLS/SSL. There are three questions in total (and a fourth bonus question). The goal of using ...
0
votes
3answers
116 views

HTTP/HTTPS on the same site

Suppose a site allows connection to be established with HTTP or HTTPS .If you establish a connection to http://www.example.com or https://www.example.com then all further link's on the page displayed ...
10
votes
1answer
450 views

How can SSL vendors limit the amount of servers they can be installed on?

I've recently purchased an SSL certificate, and it says that it's limited to three servers. Surely if I have the key and certificate on multiple servers (more than 3), the SSL will still be valid? Can ...
2
votes
1answer
134 views

In SSL/TLS, what part of a data packet is Encrypted and Authenticated?

I'm trying to wrap my head around the Application Data record that carries secured traffic. I understand TLS/SSL is a "authenticate-then-encrypt" protocol, which means an HMAC is calculated over the ...
1
vote
1answer
58 views

What's the point of the pre-master key? [duplicate]

In SSL, the client generates a pre-master key from random data from itself and also the server. It then encrypts this with the server's public key, sends it to the server and then both client and ...
0
votes
3answers
102 views

Is all RSA encryption now considered insecure? (Notably SSH and SSL)

Some of the leaks which emerged during/after Snowden concerned the fact that the NSA was paying the organization behind RSA a lot of money in order for them to systematically weaken the encryption by ...
3
votes
5answers
180 views

Free SSL Certificate when encryption is needed and not trust?

My understanding is that SSL certificates are expensive because you are paying a 3rd party to vouch for your identity, and apparently the most secure form of trust is the trust you have to pay for. ...
1
vote
2answers
53 views

How can I see if SSL Certificate is Business SSL? [duplicate]

I'm trying to see the visual difference between Business SSL Validation and Standard Validation but I see no difference (or I cannot find a site which contains a Business SSL certificate) Is there a ...
1
vote
0answers
116 views

PGP-encrypted Email or SSL/TLS Webform for Responsible Disclosure Communication?

So it's a fairly simple question. When offering an avenue to security researchers for communication with us regarding disclosure of security vulnerabilities, what's the best way to do so? Assume we ...
1
vote
3answers
69 views

SSL is Extended Validation more secure?

Talking about SSL certificates, there are 3 types. Basic validation Business validation Extended Validation The first one checks only if a domain name is registered for the user which ...
3
votes
3answers
174 views

If an attacker has the ability to modify data transferred over an Internet connection, can he or she affect TLS?

Now that Google, Twitter, and some other sites require a TLS connection to access their sites, when you go to http://www.twitter.com it redirects to https://www.twitter.com/. If an attacker had access ...
0
votes
3answers
113 views

Any alternative available for RSA? Is the web still visible to NSA?

After the Snowden revelations, is there any mass change being carried out to HTTPS protocol? As far as I understood, any HTTPS communication is still visible to NSA as they can compromise the RSA ...
0
votes
1answer
49 views

Possible to Derive Private Key from Public Key Given Enough Computing Power? [closed]

Is it possible via brute force to derive a private key from a public key (such as a website's SSL certificate)? If so, how much computing power would you need to make it feasible, compared to say, ...
62
votes
12answers
20k views

Is Google overreaching by forcing me to use TLS?

Gmail was recently changed to require HTTPS for everyone, whether they want to use it or not. While I realize that HTTPS is more secure, what if one doesn't care about security for certain accounts? ...
1
vote
2answers
66 views

SSL/TLS : Authentication mechanism

I have these doubts regarding authentication in SSL/TLS : Will there be an authentication involved for all SSL connections ? For eg. when I browse the internet, using the most up-to-date browser, ...
18
votes
5answers
2k views

Why should one not use SSL? [duplicate]

I see a lot of posts all over the web asking whether or not they should be using SSL to secure their website, or if it's really necessary to do so when the content of their site does not contain or ...
0
votes
3answers
99 views

SSL Certificate for an email server

I am completely new to SSL/TLS and would appreciate any help you guys could give me. To give you some background info, our company website is hosted externally by our ISP, however our email is ...
1
vote
2answers
55 views

Why has public key certificate “Trust anchor”, why is it SPoF vulnerable?

When you look at currently used concept of Root CA (primarily in SSL/TLS context), you can see SPoF vulnerability, which means, if your private key is disclosed, you automatically lose whole chain. ...
0
votes
2answers
94 views

SSL can stop MiTMs … but on the long run, can it really? [duplicate]

SSL uses CAs which sign certificates for the domains after they validate that the person requesting is truly the owner and by a public/private key pair a encrypted connection is achieved which cant be ...
0
votes
3answers
33 views

TLS encrypted passwords on my Android - safe? [closed]

i just get an answer from IM+ (instant messenger client android app) support and they told me that my auto saved ICQ, Googletalk, YM passwords are encrypted using TLS, so i want to ask if i need to ...
41
votes
13answers
5k views

Why should I care if a site uses encryption or not if I'm not exchanging any sensitive data? [duplicate]

Lots of sites these days, that don't deal with sensitive data, enable encryption. I think it's mostly to make (paranoid?) users feel safer. In cases where there is a user's account being logged in, ...
1
vote
1answer
67 views

How do I allow websites to call my desktop app over HTTPS?

I'm building a desktop app. I'd like websites to be able to communicate with the app over HTTPS. The general idea is that a website could run a JSONP call to https://127.0.0.1:8844 and send data to ...
1
vote
1answer
84 views

Using Encrypt-then-MAC in SSL

SSL typically makes use of MAC-then-Encrypt technique instead of Encrypt-then-MAC (which is usually considered ideal for most of the scenarios). I myself don't have a full insight knowledge about the ...
1
vote
3answers
142 views

Https forms on tens of domains

What is the optimal way (cost-wise, too) to secure page forms (https) on a large number of domains&subdomains? Are certificates required for all domains? Is putting all the page forms on a single ...
17
votes
2answers
2k views

How can you prevent employees of your company from creating valid ssl certs? [duplicate]

When registering for an SSL cert, I was able to validate that I "owned" the domain I was creating the cert for by having a valid @domain.com email address. If I worked for a large company, say ...
2
votes
3answers
98 views

Is it secure for a site to serve the login page with HTTP, but have the actual site in HTTPS? [duplicate]

On some websites, the login page (where you enter your login details) is served by a regular HTTP connection with no encryption. However, once I login, the page immediately switches to a secure HTTPS ...