0
votes
1answer
46 views

Why do certificate authorities often require/use multiple intermediates?

I suppose this is related to What is an intermediate certificate authority? but I think my question is a bit different so I'll ask it anyway. Why do most modern certificate authorities (e.g. ...
0
votes
1answer
70 views

What is the deal with Valicert SSL root certificates?

Does anyone know what the status of the "Valicert Class 2 Validation Authority" root certificate is or what's going on with Valicert in general? I've heard that that cert has been deprecated, no ...
2
votes
4answers
134 views

SSL root certificate optional?

I may have been under the wrong impression on how servers should be setup and what certificates actually get sent over during the server hello certificate message. I came across this today from ...
1
vote
1answer
58 views

Self-signing client certificates and distributing them, is the following a sound procedure?

I have a case at hand as follows: There is a number of clients in Internet (i.e. untrusted channel), initially in hundreds but growing in numbers. There is a server doing processing related to these ...
0
votes
2answers
65 views

Installing self-made cert as trusted CA on windows?

I'm looking into using mitm-proxy, but part of the process of filtering/snooping SSL is that you must generate and install a root cert as a trusted CA, so that mitm-proxy can generate and throw out ...
0
votes
1answer
69 views

Is my understanding about how SSL works correct?

I've been reading about 2-way SSL or mutual auth recently, and here's what I've figured so far: Mutual auth is a way for the client to authenticate itself to the server, just like the server does to ...
0
votes
1answer
27 views

Does openssl store the certificate of the server after verification is done?

As per my understanding , openssl will verify the certificate of the server during ssl handshake , using the trusted CAs present in the CA certificate dir in the context. After the server certificate ...
1
vote
1answer
78 views

CSR from IIS 8 and Keeping my Private Key a Secret

I've been trying to understand something. When you generate a CSR from IIS, how is the private key kept as a secret, or is it? Do CA's email you a certificate that includes your private key? Because ...
0
votes
1answer
83 views

How do SSL/TLS certificates work?

I'm trying to understand how SSL/TLS certificates work, but I'm missing something. I have obtained my current understanding from this website: ...
7
votes
2answers
316 views

How can we revoke all ssl certificates issued for our domain?

After having the hostmaster@domain.com email compromised, we found that someone issued a Domain Validated SSL certificate for our domain. Now we want to have all such certificates revoked. Is there ...
2
votes
3answers
91 views

“Web of trust” for self-signed SSL certificates?

SSL certificates, generally speaking, use a "chain of trust" model - a trusted certificate authority (CA) gets proof that a company such as Amazon owns amazon.com and issues an SSL certificate. ...
2
votes
4answers
270 views

Why self-signed https is less trustworthy than unencrypted http?

It wouldn't be far-fetched to guesstimate that at least 50% of the web traffic can be intercepted in 2014. However, a guesstimate of active interception attacks is likely an order of magnitude ...
0
votes
1answer
45 views

Can two parties sign each other's certificate and exchange without CA?

Is possible (and practical) for two users to create their own self-signed SSL certificates, exchange these certificates (perhaps in a face-to-face meeting), and then communicate with each other ...
4
votes
1answer
1k views

Android Kitkat reports: “Network May Be Monitored by an Unknown Third Party” when using non-default root CA

My company uses a private PKI to handle such scenarios such as Mutual auth (TLS) to a website using client certificates SSL web server certificates on an Intranet (once a VPN session is ...
1
vote
1answer
55 views

what harm can a malicious ca do?

If ca's act in the interests of an eavesdropper, what is the worst they cold do? I guess they can decrypt traffic not using perfect forward secrecy and impersonate the server. Is this the case?
2
votes
3answers
59 views

Are Extended Validation certificates any more secure than regular ones?

Or are they just an attempt to get you to pay more money to a CA because it tells your browser to show the address bar in green with your organization's name? Also, what are the technical details ...
0
votes
1answer
36 views

Is it possible to create a SMIME only PKI that *can't* be used for SSL?

Assume I have a Root CA that I want to share with hostile untrusted 3rd parties. Then constrain this root using specific EKUs at the root. OID=1.3.6.1.5.5.7.3.4 ; Secure Email Next, ...
2
votes
1answer
280 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 ...
2
votes
1answer
108 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
102 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
vote
3answers
353 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 ...
1
vote
1answer
131 views

What is the advantage of buying an SSL certificate from the CA rather than a reseller?

I am trying to do some research on SSL certificates, and I've come across a number of reseller sites such as GoGetSSL, which offer certificates at much lower prices than what you would pay if you ...
3
votes
2answers
110 views

SSL Wildcard certificate to issue anther certificates

Let's say, that I buy an *.example.com SSL certificate. I want now to generate subcertificates and include the *.example.com certificate in a trust path: host1.example.com, with an alternate name ...
1
vote
0answers
36 views

Is the root CA certificate required in the .crt file? [duplicate]

I am setting up SSL on Nginx with a free StartSSL certificate. Based on the instructions given on this StartSSL page I created a unified certificate containing the CA's root certificate, Intermediate ...
1
vote
1answer
282 views

SSL Certificate framework 101: How does the browser actually verify the validity of a given server certificate? [duplicate]

Sorry I know this is a complete noob question and at the risk of posting a somewhat duplicate topic. I have a basic understanding of public/private key, hashing, digital signature... I have been ...
3
votes
3answers
150 views

Risk in buying SSL cert from non well-know party

Let say I knew a guy is selling SSL cert in a very cheap price, assume they will generate a real and valid cert for me, since I need to submit my CSR to them and they pass to th CA, are there any ...
2
votes
2answers
139 views

What is the point of certification authorities that are not trusted by browsers (=trusted by Root CAs)?

See here: https://www.cacert.org/index.php?id=1 Chrome, Firefox and Internet Explorer warn that it is not trusted, essentially making the entire thing useless. If I want some kind of ssl certificate, ...
2
votes
1answer
96 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 * ...
1
vote
3answers
288 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 ...
0
votes
3answers
287 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 ...
2
votes
2answers
147 views

Why do public key certificate “Trust anchor”? Does this introduce a single point of failure?

When you look at currently used concept of Root CA (primarily in SSL/TLS context), you can see a single-point-of-failure vulnerability, which means, if your private key is disclosed, you automatically ...
0
votes
2answers
124 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 ...
5
votes
1answer
610 views

google certificates correct CA [closed]

I view certificates of https://www.google.com.ua/ So I thought, when requesting via cURL, if I point by CURLOPT_CAINFO to those certificates (GeoTrust Global CA and Google Internet Authority G2 in ...
7
votes
4answers
1k 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 ...
0
votes
1answer
262 views

Is it safe to accept the security certificate from AOL chat? [closed]

Is it safe to accept the security certificate from AOL chat? Did they recently change their certificates? These images are from Pidgin.
2
votes
1answer
233 views

How can a trusted intranet certificate be issued if they are being phased out?

I've just seen this article regarding the phasing out of intranet names on SSL certificates. However, CAs such as this one claim to still issue them and it will be "Trusted by all popular browsers" ...
3
votes
1answer
581 views

How to go about an ssl certificate renewal

I've got an ssl certificate from godaddy, and it's time to renew. I ended up with a single "keystore" file, which I give to my webserver (jetty). This is the process I went through to generate the ...
4
votes
1answer
407 views

Who is this strangely named Certificate Authority?

I'm researching certificate authorities, and I just have no idea what to think of the CA named x00Ax00-x00Tx00rx00ux00sx00tx00 x00Gx00ex00sx00.x00 x00fx00xFCx00rx00 ...
2
votes
4answers
212 views

Why isn't there a Global Root for SSL?

I was just wondering why there is a file on your computer implementing the trusted root CA's instead of something similar to DNS where there is a file on root servers that computers check against to ...
0
votes
1answer
744 views

Grey vs Green padlock in address bar - technical difference [duplicate]

What is a technical difference between "grey padlock" and "green padlock" in URL bar in browsers? As an example we can take: Green padlock: Bank of America Grey padlock: Google Search Both of ...
0
votes
1answer
137 views

How does ssl prevent MITM attacks [duplicate]

My understanding of how it works : A victim asks for the public key of a server. The attacker just forwards this request. The server now responds with a certificate which contains the Public key. The ...
1
vote
2answers
118 views

Is there any point to keeping a “Verified by X” image on the page for a page secured by SSL?

So, I saw this on a page: (The redacted part says the name of the entity that owns the domain) The page recently got SSL certs verified by GeoTrust. The image is on ...
0
votes
1answer
1k views

Problems with intermediate ssl certificates and ssl proxy

I'm currently implementing a SSL-proxy, and have run into some problems regarding certificates. We have a offline "Company Root CA", and an online "Company intermediate CA". On the proxy I have ...
2
votes
3answers
200 views

Do on-demand SSL certificates exist?

A few days ago, I visited an SSL protected website. Since Safari complained about the SSL-certificate, I did a short inspection: The certificate was issued by GoDaddy in just the minute I ...
2
votes
1answer
464 views

Different SSL states as seen by Safari, Chrome and Firefox

Today, I visited some sites of the German DHL group. While Chrome and Safari complain about an invalid certificate of Firefox accepts it. Which one is right, which one is wrong? Which decision ...
0
votes
1answer
195 views

SSL (TLS v1.2) - Can i offer fallback CAs when upgrading Certificates? (Java)

I am currently developing a product that involves two network situations. At the client side, multiple computers form a P2P network (multiple locations, multiple p2p networks), and a subset of nodes ...
4
votes
1answer
406 views

Is possible that a TLS server send more than one certificate to the client for the same site?

What I'm trying to archive is enable ECDSA and DSS ciphers in my site, but at the same time not depend just of self signed certificates, so I could sent to my client more than one certificate and them ...
11
votes
1answer
350 views

Is using a CA more secure if I'm self-signing anyway?

We have a web application that we run for clients at their booth on fairs. The communication between clients and the server was done over HTTP until recently. We're currently working on improving ...
12
votes
5answers
2k views

Are self-signed certificates actually more secure than CA signed certificates now?

Are self-signed certificates actually more secure than CA signed certificates now? I ask this because recent leaks about the NSA spy programs and the secret FISA courts mean that the US government ...
6
votes
2answers
3k views

How to detect the NSA MITM attack on SSL?

As Bruce Schneider reported here... https://www.schneier.com/blog/archives/2013/09/new_nsa_leak_sh.html ...the NSA reportedly performed a MITM attack on a company in brazil and decrypted their SSL ...