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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36 views

Man-in-the-middle proxy without any certificate errors?

I am working in school as IT engineer. We have legal order from our governmental ISP to collect logs about our users network behavior, to identify infected PC's and so on. I need to filter all ...
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21 views

Accept all out of date self-signed certificates

My work computer does not access the internet at all, ever. We have a web server that has an out of date certificate that is preventing me from accessing it programmatically with a POST request. I ...
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19 views

Get a server's SSL/TLS certificate using “openssl s_client”

I am trying to get the SSL/TLS certificate for one of our load balancers (Netscaler) using: openssl s_client -showcerts -connect lb.example.com:443 But it won't show me the certificate: CONNECTED(...
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8 views

Get notified when a certificate for one of my domains gets issued [closed]

Since client transparency and certificate logs are widely in use now, can I, as a site owner, somehow subscribe to one of the certificate logs and get notified when a certificate for one of my domains ...
7
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1answer
80 views

How do I uninstall an application whose installer has a revoked signing certificate

Several years ago I installed an application called Net Limiter on my then Windows 7, since upgraded to Windows 10, machine. Earlier today I attempted to uninstall it while cleaning up applications ...
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1answer
33 views

Generate an ECDSA key and CSR with OpenSSL

I know how to generate an RSA Private Key and CSR: openssl genrsa -out my.key.pem 2048 openssl req -new -sha256 -key my.key.pem -out my.csr But, how do I do the same with an ECDSA (Elliptic Curve ...
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1answer
27 views

Import root certificate in Synology

I am looking for a way to import a root certificate in a synology server (the certificate comes from a ssl intercepting proxy). I have copied the certificate to /usr/share/ca-certificates/<...
2
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33 views

Trigger event on certificate renewed, replaced

I am attempting to trigger a task schedule to kick off a powershell script based on when a new certificate is added into the Local Computer\Personal\Certificates store. For testing purposes, the ...
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12 views

Unable to generate certificate in Internet Explorer

I have a problem with Internet Explorer, I'm unable to generate a new certificate from a root one, every time I try to generate get a prompt which says. “Error in InstallResponse. Error Number ...
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2answers
23 views

PKI Certificate Authority private a keys and certificates

I'm trying to set up OpenVPN and I'm a bit confused about the terms. From what I've read, a PKI consists of: A separate certificate (also known as a public key) A private key for the server and ...
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1answer
24 views

Certificate verify failed, using fresh Plesk installation

I have a fresh installation of Debian 8.1 Plesk 12 Plesk installed Postfix and Dovecot and added a default certificate for Postfix. I'm running PHP 5.6 for my website. New in 5.6, PHP verifies ...
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1answer
47 views

I keep getting certificate errors and websites not loading correctly or really slow

It all started when I changed the "Internet Time Settings" server to something else because it didn't get the correct time. After I have found a correct server the time was correct (also is now), and ...
2
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1answer
39 views

How can I export a certificate from MMC as a PFX file?

I'm in the process of trying to change the KeySpec property of a code signing certificate from Comodo by following this guide. The guide mentions importing your certificate file into MMC and then ...
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1answer
35 views

Pulled Windows 10 Surface 3 out of storage… now what?

I just pulled a Surface 3 out of storage. I haven't used it in about a year and I can't visit any websites without running into "invalid certificate" errors. Last time I used the tablet, it worked ...
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2answers
29 views

I am not able to locate certificate created using makecert

I have just started learing to create certificates. I have created some & located in store using MMC. But, when I tried this command , I was unable to locate certificate. makecert -n "CN=My ...
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1answer
9 views

Openssl in client mode: Verify authentication

I want to test my secure server implementation with openssl (v. 1.0.1e). I use openssl in client mode to connect to the server: openssl s_client -cert client.pem -connect localhost:8888 -debug This ...
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0answers
19 views

How to encrypt email with public key in Thunderbird

So I need to send an encrypted email to a specific person. So I installed Thunderbird, GnuPG, and the Thunderbird add-on Enigmail. I totally understand that I need to encrypt the email with the ...
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2answers
38 views

Can i use a gethttpsforfree to create a valid certificate for locahost or intranet domain?

I have a webapp running in a public domain using a ssl certitifcate provided by https://gethttpsforfree.com/ It works like a charm. The problem is that sometimes i need to install this webapp ...
3
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2answers
42 views

Is there any limitation on the number of applications that can be signed with one certificate?

I bought a code signing certificate (in my name) for windows and I signed 2 apps with it (the 32 bit and 64 bit versions of my app), both apps seems to be signed properly but I don't know if each ...
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0answers
56 views

SSL Certificate error in Internet Explorer but not Firefox, Chrome or Edge

I have installed security certificates on 2 websites, which work perfectly in Firefox, Chrome and Edge but when accessing in Internet Explorer (10 and 11), users get the "There is a problem with this ...
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1answer
18 views

How to copy a website certificate into a file in windows

I am looking for a command to copy the certificate of website in text mode, so that I can compare it with the one I have. Please help me with this. For example I have an IP of my server 10.112.***.***...
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2answers
116 views

How to provide a verified server certificate for Remote Desktop (RDP) connections to Windows 10

We have a Windows 10 Pro machine at our office which has an open port to the internet for incoming remote desktop connections (a ‘host’). It is well protected by complex password and limited number of ...
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0answers
10 views

Signing OpenVPN server and clients certificates by Samba4 DC auto-signed CA.pem

I installed Samba4 and configured it to be domain controller, and it auto generated ca.pem, cert.pem, key.pem. And now I want to use the same CA of samba to sign the new certificates (maybe generated ...
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0answers
16 views

SSL site hosted in IIS shows certificate, but no such certificate is installed

I have a problem that is really leaving me scratching my head. I'm hoping it's something simple I've overlooked. I need to replace an expiring SSL server certificate on an IIS 7.5-hosted site on a ...
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2answers
152 views

SSL certificate problem: self signed certificate in certificate chain

Behind a firewall, using chrome, I am able to access a github repository like so: https://github.com/Squirrel/Squirrel.Windows Chrome uses our certificate for this access. If I try to access the same ...
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1answer
111 views

Apache SSL error: Re-negotiation handshake failed: Not accepted by client?

I protect my wordpress administration by a client certificate. I had a trouble in march after upgrading from Wheezy to Jessie but it has been solved and everything ran well until my letsencrypt ...
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1answer
81 views

How to make a self-signed certificate trusted?

I've created a self signed certificate on my Windows 10 PC and would like to see it trusted by the web browsers on the same machine. To do this, I've added the certificate to the 'Trusted Root ...
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1answer
18 views

How to set attributes to private key on PKCS#12 (key usage)

I make a certificate X509 with library Bouncy Castle on Java. I need set a Key Attribute to private key. PKCS7 Data Shrouded Keybag: pbeWithSHA1And3-KeyTripleDES-CBC, Iteration 1024 Bag Attributes ...
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1answer
53 views

Self-signed certificate becomes invalid after some time

I have a web site hosted on IIS webserver. I've created a self-signed certificate for the web site and installed on a client machine. When I install the certificate to a client machine, I can ...
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1answer
18 views

How to use a certificate authority (CA) with a separate key file for SSL bumping in squid 4.x?

According to the squid article on SSL bumping one uses the cert parameter of the http_port [port] ssl-bump directive in order to specify a CA which has it's key included in one file (protected by OS ...
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1answer
88 views

Can't seem to export a p12 file

I've been over this more than 10 times now, but I still can't seem to get the .p12 file I need to publish my app. On the developer platform from Apple, I already have a development certificate. I'd ...
0
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1answer
279 views

How do I deal with NET:ERR_CERT_AUTHORITY_INVALID in Chrome?

My work place intercepts SSL connections, looks at their contents, and then passes the data to and from my machine and remote hosts - a kind of man-in-the-middle attack. This is not uncommon in ...
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0answers
36 views

OpenSSL with added CA certificate on CentOS

So the problem is: I'm trying to add CA certificate on CentOS (on server) and check the working of SSL of one of my clients domain. The same thing works perfectly on Ubuntu: How do you add a ...
1
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1answer
35 views

Can it be found out, what websites/domains an SSL (pem) certificate approves of?

A (non-wildcard) SSL certificate can be issued to match multiple domains and subdomains, like mysub1.example1.com, www.example2.com, and many others, all in one certificate with the same private key. ...
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0answers
15 views

What happens when certificates created by Acrobat expire?

If I create a certificate using Adobe Acrobat to encrypt PDFs, I notice that the certificate has an expiration date (5 years after its creation date) when looking them up on Certmgr. My question is, ...
1
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1answer
25 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 365....
3
votes
1answer
327 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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votes
2answers
658 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 ...
0
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1answer
155 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
200 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 ...
0
votes
0answers
16 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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votes
2answers
146 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 ...
0
votes
0answers
33 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 ...
1
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2answers
56 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 ...
0
votes
0answers
63 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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0answers
44 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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votes
1answer
45 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, ...
0
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1answer
213 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
21 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 ...
0
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1answer
367 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. ...