Public key certificate - also digital certificate or identity certificate. A document that contains information about a user's or machine's identity, matched up with its public key, and is validated and cryptographically signed by a certificate authority. Certificates are intended to provide a ...

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8 views

Organizational Email Footer in O365, but with S/MIME Certificates

My organization uses S/MIME certificates to digitally sign and encrypt emails. We would like to add a disclaimer at the bottom of our emails, which can be done via the mail flow settings in Office ...
3
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1answer
53 views

Software update kb3136000 has not been installed

I'd like to install manually .Net Frame Work 4.6.1 security update that release most recently. When I try to install that update I gave this error: Software update kb3136000 has not been ...
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2answers
86 views

Proxy causing www.google.com to report as having an invalid security certificate

I tried to use google today (using google chrome), and when i search, it shows me the search page, but the top header says that im not signed in, although I am .. tried to sign in again, and same ...
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1answer
24 views

Security risks of compromise Apple distribution certificate [closed]

What are the security consequences of a compromised Distribution Certificate from the Apple iOS Developer Account? From what I understand.... people cannot install apps signed with these ...
0
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1answer
68 views

How to enable IE 10 to accept sha-1 ssl certificate?

I have a server certificate issued by a CA that uses sha-1. Chrome (latest) allowed me to access a server that imports the server cert but IE 10 didn't. Is there way that I could configure IE 10 to ...
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0answers
32 views

Is TPM 2.0 required by browsers to visit sites that use only SHA-2 certificates?

SHA-2 support seems to have been added with TPM 2.0. Consequently, is TPM 2.0 required by browsers to visit sites that use only SHA-2 certificates? If not, is there some official documentation ...
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0answers
127 views

Downloaded package (xxx.pkg) can't be opened because it is from an unidentified developer

I'm the developer of an application which clients can download from my website (lightroomstatistics dot com). The first time the clients or I, on a different computer, start the downloaded installer I ...
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0answers
14 views

SSL/TLS validation errors on requests

Every single website I try to access is giving me a certificate error. I've tried checking the system's time, but it's correct. Thanks.
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2answers
60 views

SSL certificate warning error for a website running on http and https

We have the website which is running on both http(80) and https (443). We purchased the SSL certificate and installed. It is working well for the web sites running only on https. If we access the ...
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0answers
21 views

How do i encrypt PDF with certificate?

I want to encrypt a pdf document with certificate so that i can have full access and all other users just printing access. I have been trying to create a certificate adjusting permissions and ...
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2answers
49 views

How to connect securely using RDP when connecting w/IP

I have a Windows 8.1 machine that I am trying to connect to a remote server via RDP using IP address. Issue lies with connection type - I'm using IP address and certificate name is DNS name. So ...
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0answers
55 views

Invalid certificate popup associated with Outlook meeting reminder

I have a meeting in Outlook (that I do not own, I am just an invitee), and every other week when it occurs I get this popup: It comes up right after the reminder. Sometimes it pops up multiple ...
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37 views

Restore “Back up your file encryption certificate and key” window (prompt) in Windows 7

How can I make this prompt to appear every time a new encryption certificate is created since last time I pressed "Never Backup"?
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1answer
29 views

Let'sEncrypt SSL Doesn't Work

I've got a debian 8 server installed with ispconfig 3, apache2, mysql and php. And recently I've installed (tried) letsencrypt SSL certificates for my website.com. I did everything as tutorial said, ...
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1answer
38 views

How to make “Permanently store this exception” checkbox active?

I'm trying to connect to a website which uses a self-signed certificate. Firefox tells me that my connection is not secure and on clicking Advanced button I can find Add Exception... button, clicking ...
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0answers
12 views

MS Certificate Web Enrollment authentication between domains

I'm trying to set up the Certificate Enrollment Web Services to give autoenrollment to some clients. The issue is the clients are on a separate domain to the CA. I see the CES/CEP allows three options ...
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1answer
58 views

OSX wants to make changes. Type an administrator's name and password… Won't go away

I recently needed to add some SSL certificates to my Mac (OSX 10.10.5) in order connect to a remote service. The certificates are needed for 2 factor authentication. I have full Admin rights in OSX. ...
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0answers
15 views

Extract and Trust certificate via command line in windows

I am trying to setup a printer via command line in windows. So far I everything is working well except I don't know of any way to extract .cer from .cat via command line. I could extract it via ...
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0answers
48 views

(Setting up SSL) invalid number of arguments in “ssl_certificate” directive in /etc/nginx/nginx.conf

I am trying to setup SSL on my server. I purchased my SSL certificate from Comodo. I am following the tutorial they have made here: ...
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0answers
29 views

“Copy to File…” button is disabled in certificate dialog

In the certificate details dialog, the button to save it is disabled. Why is that? I remember it working before. What I did was: open a new window of IE (best to close all others first) to visit a ...
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1answer
65 views

Browser (any) on Windows 7 loads bad (localhost) https certificate

On Windows 7 in Chrome, but also in any other browser, for one particular (external) website a bad HTTPS certificate is loaded. When I open the certificate it says that Windows does not have enough ...
4
votes
0answers
162 views

Edge “security certificate is not secure” since bash installation

Description I am running Windows 10 Insider - Build 14316. I managed to reproduce the issue by reverting the update and try it again to see exactly when the problem occurs. So, I activated Ubuntu On ...
0
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0answers
19 views

Nylas N1 ignore self signed cert

I am trying to use the N1 mail client at my school. However, when I try to connect, I get the error "self signed certificate in certificate chain" I know the cert is self signed, how do I make N1 ...
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2answers
44 views

Apache certificate chain is not being sent

Good day! I've searched google high and low. Goodness, I've never gone past page 2 of search results before! But this one stumps me. I've got a website that I am securing with a certificate signed ...
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1answer
135 views

Where are certificate private keys stored in Windows 7?

Using the certmgr.msc utility, I can access the windows cert store, but I still can't figure out where Windows stores the private keys. For example for a given certificate, Windows tells me that ...
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0answers
12 views

Why might Windows EFS not list a certificate from Trusted People?

I have an encrypted file. I've added a public-key-only certificate (exported from another computer that had the private) to all of the following: Local Computer\Personal\Certificates Local ...
3
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1answer
127 views

After upgrading to Mac OS X 10.11.4, I start seeing reports that certificates are invalid

I upgraded from Mac OS X 10.11.3 to 10.11.4 this week. After that, I found that, if I open some software e.g. Xcode simulator download page, or HMA client (a VPN Client), it reports some info: invalid ...
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0answers
20 views

Apache on Windows using CA Certificates

I have been issued by our CA a new cert and have the CA cert and my key that I used during the CSR for generation. I've never setup SSL in apache before and more or less copying from other examples ...
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0answers
66 views

Java out of box cacerts certificate are SHA1 is there one with SHA2

Java/JDK/JRE they have a keystore cacerts under lib\Security folder as shown below Java comes with around 93 certificates out of box, These are not self-signed these are supplied by java itself ...
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39 views

Can I connect to freenode via SSL on Pidgin/Windows?

When I set up an IRC account on the irc.freenode.net server and select "Use SSL" under the advanced tab, I get an "SSL Handshake Failed" error. I found a guide for setting up an SSL freenode ...
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1answer
318 views

How to make Firefox ignore all SSL certification errors?

I'm on a private network with a lot of restrictions and monitorings. Every HTTPS connection results in SSL certification errors (maybe those people use "man-in-the-middle" approach to decrypt the ...
0
votes
1answer
54 views

Mac OSX 10.11.1 can't negotiate TLS1.2 cipher suite with IIS 8.5

I am diagnosing a Mac running OSX 10.11.1 which cannot connect with an Exchange 2013 server (on Win 2012R2 w/IIS 8.5). I enabled TLS 1.1 and 1.2 via registry keys on the Exchange server, but when the ...
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0answers
60 views

Adding additional SSL certificate to be recognized in Cygwin

I have a server setup that has an HTTPS certificate issued by a major certificate provider (DigiCert). The certificate is recognized by all of the browsers on a machine running Windows Server 2008 R2, ...
0
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1answer
68 views

SSL certificate: incorrect order

I have SSL EV certificate for https://goout.cz. According to this test we are getting A+: https://www.ssllabs.com/ssltest/analyze.html?viaform=on&d=goout.cz However I get warning for "Incorrect ...
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1answer
37 views

Using signed certificates with shellinabox

I currently have a web server running Apache. This server hosts a website (foo.com), and is configured to use a signed RSA certificate for https connections. The Apache configuration for the site ...
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0answers
36 views

Why can't signtool find certificate in machine store?

We have a code signing certificate that is working in TeamCity builds using the following command: signtool sign /a /v /sm /s my /n "NAME_ISSUED_TO" /d "DESCRIPTION" FILENAME Unfortunately the ...
1
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1answer
143 views

Git GUI on Windows not working with self-signed SSL certificates - gives errors (fatal: SSL certificate)

I'm using git GUI on Windows 7. I need to clone the repository and simply want to just use it. However, when cloning, pulling, pushing to/from repo with self-signed certificate, I'm getting this ...
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2answers
33 views

How can I renew my certificate authority signing key?

I am a noob considering certificate authorities. I followed this article a while ago to setup my own certificate authority and with its help setup my own freelan VPN network: ...
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0answers
27 views

Digitally sign latex pdf document with CA

I would like to know, if it is possible to digitally invisible sign a pdf created by latex automatically after each time I create the document (I'm using Texnic Center) or after I created the ...
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1answer
72 views

How to Import *.p7s certificate chain into keystore?

I've used this commands to create my csr keytool -genkey -alias server -keyalg RSA -keysize 2048 -keystore domain.jks -dname "CN=*.domain.com,OU=Software Development, O=Company Name, L=Asuncion, ...
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0answers
53 views

Creating a certificate chain via Openssl tool

I've been trying to create a certificate chain, something of the sort CA -> Intermediate CA -> Client certificates. I used the following to generate CA cert :- openssl genrsa -out ca.key 2048 -des3 ...
1
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1answer
48 views

Backed-up EFS certificate doesn't work after resetting password

I'm on a Windows Vista computer. I've wanted to use EFS for a little while but I wanted to experiment on some individual files first. While doing that, I backed up my certificate and key, reset my ...
0
votes
5answers
91 views

Is a self signed SSL certificate less secure?

I'm using a self signed SSL certificate on the homepage for our prom. I know almost everybody who uses this website personally, so I can assure them that the certificate is trustworthy, even though ...
0
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0answers
22 views

How do I override the Mac Mail “invalid certificate warning”

I have 2 mailservers set up on the same IP address (one for me, which we'll call foo.com, one for a project I'm involved with, lets say bar.com). It's a standard Dovecot & Postfix stack, both with ...
0
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4answers
107 views

Untrusted certificate with Internet Explorer 11

I get "untrusted certificate" errors when opening all https sites in IE 11. I added sites to trusted sites, adjusted date and time, reset IE setting, installed sites' certificates (by click on view ...
3
votes
2answers
377 views

Managing LetsEncrypt Certificate expiration and auto-renewals

I've been experimenting with LetsEncrypt SSL certificates and managed to get certificates set up and installed on Windows for use with IIS using the ACMESharp Powershell library. The process to do ...
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1answer
46 views

Firefox doesn't ask me for a certificate when visiting a site that needs one

I use Firefox 44.0.2 on a Linux Xubuntu system. I'm trying to access a company website that requires a certificate. I can confirm I have the correct certificate in ...
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2answers
27 views

Can a wildcard CN in an SSL certificate be more specific

Can the common name for a wild-carded SSL certificate be more specific than simply "*"? e.g.: in the case of a firewall with multiple interfaces and similar names assigned to those interfaces: ...
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1answer
114 views

Excel 2016 Macros - Windows/Mac Issue

I'm using Excel 2016 (Desktop - not online) and I've created a worbook with a Macro that I've signed using a self-signed certificate. I've set the 'trust center' settings on Windows so it will only ...
3
votes
1answer
221 views

How to set the Owner of certificate generated by Let's Encrypt?

I've implemented Let's Encrypt on two production servers with relative ease, and both servers are providing certificates to the websites we run on those servers. What's bugging me though is when you ...