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

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Security risk among shared wifi users [duplicate]

I understand that the shared users on a wifi can see each other's HTTP traffic using proper tools. Is it possible for shared users to read HTTPS traffic or encrypted traffic like TOR ?
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2answers
106 views

Is the lack of https reason enough to abort form submission?

Preamble: Am in awe about the quality of both questions and answers on https / SSL on this site. My humble question below pales in comparison. Both on professional and amateur websites I've ...
32
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5answers
4k views

HTTPS still NSA-safe? [closed]

There are exerpts, that say that using https can be broken by the NSA by now. So is https still a solution for secure web-browsing? source: ...
1
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1answer
53 views

Certificate pinning in a browser

I am trying to understand certificate pinning. Google started adding a whitelist of CA certs that they use for their certificates and if a cert for a google service is issued outside of this list ...
0
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1answer
86 views

Why has Convergence stalled out? [closed]

Convergence is a well-thought out system to replace certificate authorities built by Marlin Moxiespike back in 2011. Since it's debut, it seems to have largely stalled out, with no additional major ...
0
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0answers
107 views

cURL cert validation with curlopt_cainfo not working

I want to validate my SSL certificate each time I run API calls. I've been following this guide: http://artur.ejsmont.org/blog/content/how-to-properly-secure-remote-api-calls-from-php-application ...
2
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1answer
178 views

SSL certificate chain verification

After reading many articles and watching many tutorials I decided to be specific because there are some things about SSL certificate chain verification and SSL cetificate verification in general that ...
0
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1answer
59 views

ChangeCipherSpec Authentication

According to RFC 5246, 7.1. Change Cipher Spec Protocol: The ChangeCipherSpec message is sent during the handshake after the security parameters have been agreed upon, but before the verifying ...
2
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1answer
87 views

What is “Multi-Protocol Unified Hello” and what are the impacts of disabling/enabling it?

This article describes how to disable old versions of TLS, but in addition to doing so, "Multi-Protocol Unified Hello" is also disabled. # Disable Multi-Protocol Unified Hello md ...
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2answers
149 views

How widely deployed is TLS with cipher ECDHE?

Microsoft deployed a patch for Windows 2012 R2 and Windows 8.1 that adds the following ciphers. Cipher suite Exchange Encryption Hash TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH ...
0
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1answer
70 views

SSL decryption without installing a certificate on each client

Given a proxy performing MITM SSL decryption and inspection, is it possible to install a wildcard certificate (*.domain.com) on the proxy signed by a root CA (such as VeriSign or GoDaddy) such that ...
2
votes
2answers
1k views

Does CVE-2014-0195 affect HTTPS?

Does CVE-2014-0195 (openSSL) affect HTTPS or only VPN tunnels? Reference: https://security-tracker.debian.org/tracker/DSA-2950-1, https://isc.sans.edu/
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1answer
97 views

Why does facebook php sdk (and multiple others clients) include CA bundle with a lot of CAs?

This is what facebook ships with their API php client: https://github.com/facebook/facebook-php-sdk-v4/blob/master/src/Facebook/fb_ca_chain_bundle.crt It contains dozens (hundreds?) Root CAs. But ...
2
votes
2answers
81 views

Certificate authority structure - best practices

I'm working for a company that sells software products to customers some of which do not have the resources and/or know-how to build and maintain their own CA (used for the SSL communication of our ...
1
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1answer
135 views

When SSL detect a replay attack?

Suppose an attacker records all messages of a SSL handshake (RSA one-way), and starts a replay attack. When (after which message) can the server possibly detect the attack? Now suppose the attacker ...
1
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0answers
427 views

GnuTLS ServerHello exploit (CVE-2014-3466) - how to verify?

So pretty much all of the GNUTLS world is worrying about CVE-2014-3466. I checked my Kali and it responds with this - # apt-cache rdepends libgnutls26 | grep -v lib Reverse Depends: ...
4
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2answers
259 views

What exactly determines what version of SSL/TLS is used when accessing a site?

If I click on the little lock icon in Chrome it says that the site in question is using TLS v1. I also checked using openssl and was able to hit the site using TLS1, SSL2 and SSL3. From what I ...
5
votes
2answers
515 views

GET over HTTPS vs POST over HTTPS [duplicate]

How safe is a hybrid mobile application developed using a GET Web service over HTTPS? What are the pros and cons of using it and how safe is POST over HTTPS?
1
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1answer
76 views

nonce in SSL/TLS handshake

In SSH/TLS handshake, a nonce is always sent by the client to server and vice versa. Nonce basically consists a random number and unix timestamp. What is the need of unix timestamp ? As the nonce is ...
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2answers
84 views

SSL Finished message contents

Hi everyone I'm little bit confused about contents of Finished Message used during Handshake Protocol.In particular this message (client/side) contains the connection-id originally sent from the ...
1
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1answer
153 views

Why do you need a 4096-bit DSA Key when AES is only 256-bits?

This is something which I have been wondering and trying to find an answer for, but yet to come even remotely to one. Why do you need a 4096-bit DSA/El-Gamal key when AES uses only 256-bit keys?
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2answers
763 views

Which browsers are using openssl

It is asked in stackoverflow, but I suppose maybe it is more suitable to ask here. It is said that openssl are widely used, however, as far as I know, the most popular browsers seem not use openssl, ...
4
votes
1answer
114 views

Tor and (SSL) response

I have two questions regarding Tor (onion routing). How do I receive responds from a server when I use onion routing, I've read that, the last node(exit node) will use the same path I used but in the ...
3
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4answers
236 views

What's the need of multiple implementations of SSL/TLS? [closed]

I've been reading about SSL/TLS and I was surprised when I saw the amount SSL/TLS implementations that exist. wikipedia. So, is there really a need for all these different implementations? Wouldn't ...
3
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2answers
251 views

Implementing Own TLS mechanism

I wish to implement SSL/TLS for my site. How can I do this on my own without using a certificate authority. The site will be accessed only via certain machines so I can easily install the public ...
1
vote
1answer
91 views

What can entreprise admins do with our secured sessions?

The enterprise where I work has a proxy server that traces and filters our web activities. Employees claim that they can know the links that we visited and see the content of HTTP web sites, but they ...
5
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1answer
620 views

What's keeping a malicious man in the middle server from forging a valid certificate

According to process of authenticating a server certificate: What's keeping a malicious server to fill up a valid server certificate since it knows all the things: Forged Server public key (man ...
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3answers
306 views

How can I get my SSL certificate signed by an CA for web application that runs on localhost

I have a web application that runs on localhost. I have a self-signed certificate for tomcat configured but when loading the website on firefox, I get a security exception. Can I get a CA to sign my ...
3
votes
2answers
176 views

Web security - use of cookie in https

I am taking a web security class and was told by the instructor that most of the websites today use https for authentication and then use a cookie (authentication token) in plain text to keep track of ...
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3answers
59 views

OpenSSL encrypting small packets bandwidth overhead

I have an c/c++ program used for encrypting data for communicating between two ends. Encryption is done using OpenSSL (0.9.8d-fips, Sep 2006). Think it'll be worthy to mention that I'm not much ...
2
votes
1answer
90 views

Reverse Proxy SSL

I am having trouble finding out if a potential server configuration is secure. I have a server running a nginx reverse proxy that is accessible from a public ip address on the ports 80 and 443. I then ...
1
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2answers
141 views

Securing JSON data

I am planning to use JSON as the data transport mechanism between my iOS app and my server (the server is a WCF service). While learning about JSON, I realized that all the data is passed around ...
0
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3answers
89 views

Where do my keys come from for requests over SSL? [duplicate]

From what I understand, when you send information to a website over SSL, you encrypt the information you send with their public key. However, if you want to be able to decrypt the information they ...
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2answers
93 views

Using HTTPS, can the target domain be seen?

If I go to https://google.com/q=test_query with from my browser, what traffic can be seen on the router? Can the domain name (google.com) be seen? If so, can I block all of the traffic to a web page ...
3
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2answers
306 views

Test STARTTLS configuration of SMTP server

Is there an easy way to test an SMTP server to check for configuration issues associated with STARTTLS encryption, and report on whether it has been configured properly so that email will be encrypted ...
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3answers
215 views

How Safe Are Encrypted Websites Really?

I was at a coffee shop and had to (I mean had to) check something on my bank account and another account. I figured since the two websites I was viewing were encrypted, and because my computer (I'm on ...
0
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0answers
33 views

ARR Server and SSL Offloading

we want to implement ARR server in our WAN. the SSL offloading feature is enabled on ARR server. Since SSL offloading terminates encryption , we want to secure connection between ARR server and data ...
0
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1answer
40 views

Advantages of TLS-SRP when the secret must be exchanged online?

I've got some practical questions about SRP when the shared secret must be established online. Is there a way to establish the shared secret online without the use of HTTPS? If you've already used ...
2
votes
2answers
76 views

OpenSSL SSL enabled client application, server verification?

I am writing an OpenSSL SSL enabled client application which connects to a Google server. I have the SSL working and I can monitor the traffic and see that it is definitely encrypted. I am using ...
1
vote
1answer
58 views

What's the advantage of TLS-SRP over self-signed certificates?

According to http://security.stackexchange.com/a/2531/5002 TLS-SRP allows one to authenticate a client or server without third-party certificates because it uses a shared secret. If you're going to ...
0
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1answer
488 views

RESTful web service and SSL certificate

We have a server that provides RESTful services to our application server. It runs on Amazon Elastic Beanstalk and mapped with a domain name and SSL certificate registered at GoDaddy. It ran ...
0
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1answer
65 views

Is session-passing safe?

I have a php and nodejs server. User logs in on the php backend, and, when entering nodejs, the php SID cookie is being passed through a websocket. I further take the session ID, find the session file ...
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0answers
51 views

Are any major websites offering ECDSA authentication?

At the time the Cloudflare blog post “ECDSA: The digital signature algorithm of a better internet” was authored, Cloudflare was apparently one of "fewer than fifty" users of ECDSA certificates on the ...
0
votes
2answers
45 views

SSL reconstruction with missing part

I know that it's possible to decrypt a sniffed SSL session even when some packets were lost during the capture. I run some tests with wireshark and I saw that it's still able to decrypt part of the ...
1
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2answers
61 views

SSL security display

Why does Firefox not display the SSL logo when viewing secure sites, i.e. sites with Https? It used to display at the bottom of teh browser window previously but i just notices that that bottom ...
7
votes
3answers
192 views

According to RFC 5246, are nonces in TLS useless (in terms of security) and if yes, why aren't they only random data?

I know the common usage of nonces in security (which is well described in this topic). However, when checking the SSL/TLS protocol, we can notice, according to the RFC, that nonces as ...
1
vote
1answer
130 views

Is this a security breach?

I read in an article that if the request is authenticated or secure (i.e., HTTPS), it won’t be cached. But in https, burp has reported an issue stating http response is as follows: Cache-Control: ...
0
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3answers
131 views

Encryption and Layers understanding

If I'm right the SSL encryption take place in the application layer, but we can also have encryption in the Internet Layer. Why are we using both, and why sites that doesn't have SSL are considered ...
0
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1answer
115 views

HTTPS encryption and internet proxy [closed]

I'm not sure if this is the right place to ask this question. Please tell me, and I'll delete it. I want to modify a Word document hosted on my OneDrive account. I see that it is using a SSL ...
6
votes
3answers
1k views

Why can't we do MiTM attacks when using secure connection

I have this silly question that is bothering me. When not using secure connection (HTTP for example) cookies can be intercepted and used to connect to the site as if we have the id and password. We ...