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Questions tagged [certificate-authority]

In cryptography, a certificate authority, or certification authority, (CA) is an entity that issues digital certificates.

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What Does “L1K” indicate on an Entrust Certificate

I was working with a teammate importing certificates into a java keystore and I noticed our intermediate certificate had the ".L1K" notation, was then about to import into our Java application's ...
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28 views

Server certificate validation 802.1x

I have recently deployed CA and NPS for WPA2-Enterprise authentication. However doing the pen testing I found out that clients are accepting a certificate from any valid certificate authority. This is ...
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2answers
41 views

Generate/Sign certificates with the AD trusted root certificate?

I know that when an Active Directory domain is created: it creates it's own root certificate and that root certificate is automatically pushed into machines when they are joined to the domain You ...
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31 views

Custom Certificate Authority not recognised on Windows server / Cert shows as “self signed”

Scenario: We run our own Certificate Authority for internal server to server TLS connections. Created a new SSL certificate for a web server. Deployed to server, SSL works.... Send CA public key and ...
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1answer
45 views

What happens when someone gets to know the secret key (of the web server / a CA)?

basically, I have three questions and I would be grateful for a brief explanation of the differences in the consequences of these thefts: What happens when someone gets to know the secret key of the ...
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1answer
158 views

Certificate Authority does not show Templates

No templates are shown in the Template folder of the Certificate Authority. In the Certificate Templates (certtmpl.msc) are Templates shown. Running certutil -CATemplates returns 0x80070490 (WIN32: ...
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35 views

Request Certificate points to wrong Server

We migrated a while ago from SBS 2008 to Windows Server 2012 R2. The new Server is also the Certificationauthority. But when I want to renew a certificate, a get the error messsage "Error: RPC Server ...
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60 views

How do I add my organization's self-signed certificated to the trusted list?

I am trying to provision some servers running Ubuntu 18.04 within my company and have run into errors such as Error response from daemon: Get https://registry-1.docker.io/v2/: x509: certificate ...
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90 views

Install CA - Not trusted certificate - Apache

I am trying to install a chain certificate from Entrust on a red hat server 7.5 that uses apache 2.4.6. Following some articles I found, I did the following: Edited /etc/httpd/conf.d/ssl.conf file in ...
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1answer
42 views

Migrate to two-tier PKI (Microsoft)

Currently, I have one online enterprise root-ca (and issuing certificates - default templates) that installed on DC (yes, yes I know - worst case scenario). I set another offline not joined to a ...
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28 views

Certification authority limited to a domain

we generate test environments on demand. We're using Let's Encrypt to provide SSL certificates. Each of the test environments needs around a dozen domain names in the form <part>.<...
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IANA PEN OID in CAPolicy.inf

I want to setup a two-tier Microsoft Windows Certificate Authority. I've read that I need an OID from IANA - which I got. Now I am unsure how to apply this OID that it is generally taken by my CA... ...
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block Certificate authority server [closed]

is this possible to block a specific TLS CA(certificate authority) on network ? for example block all certs that is issued by letsencrypt on my network is there any ip or host name for blocking ?
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199 views

CA root install issue on Ubuntu 16.04 LTS Server

I am setting up nginx reverse proxy on Ubuntu 16.04 LTS Server for Web-Server. There will three different Services running on Ubuntu. Services will communicate each other using API calls. Similarly ...
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41 views

Expired DC certificate back after reboot

In our environment we use DC-Cluster_CA to generate SSL certificates for .foo-bar.local domains for internal use. Example is certificate 'DC-01.foo-bar.local' The Radius server also uses this ...
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2answers
56 views

Client certificate authentication - Apache2

I'm trying to set up a client authentication for one of my app but for now, it's not successfull. I bought a Gandi wildcard ssl certificate for my domain *.example.com and here is the configuration on ...
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1answer
565 views

SSL “unable to get local issuer certificate” : “full chain” vs “root”?

Summary In summary I have some certificate related files and some certificate related instructions but I'm not sure which files are which ! Background I've just installed a certificate from Lets ...
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58 views

Prevent Smart Card prompt when looking for Enrollment Certificate

I'm using an Enrollment Agent user certificate to amend CSRs (in order to add SANs) My method is working fine - using the following command: certreq -config "CertAuth" -policy "PathtoCSR" "Path to ...
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1answer
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Trouble creating SAN certificate with Internal CA

This is on WSE 2016. I've created a Certificate Template called 'SAN Web Server.' Per this advice, on its properties sheet I've specified Supply in the request on the Subject Name tab. However, the ...
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1answer
314 views

OpenVPN server as it's own CA — security concerns?

I was reading the Digital Ocean guide to setting up an OpenVPN server on Ubuntu in anticipation of doing exactly that, and saw this tidbit: Additionally, you will need a separate machine to serve ...
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2answers
1k views

Why does curl work with a specific https site, but wget has problems with certificates?

Centos 6. After updating recently ca-certificates I run into some troubles. I have the most recent versions of curl for centos 6: -bash-4.1$ curl -V -v curl 7.19.7 (x86_64-redhat-linux-gnu) libcurl/7....
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1answer
36 views

How to view signatures fulfilling the “Authroized Signatures” option in a Smart Card Logon certificate from a Windows CA

I'm playing with the Windows Server CA role and Smart Card logons. We have a working PKI setup and smart card issuance/logon working. What I'm curious about is the "Require this number of authorized ...
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1k views

How to configure SSL through GoDaddy using AWS Certificate Manager?

I created an SSL cert with AWS Certificate Manager. I followed the instructions provided to create a CNAME in GoDaddy, but my AWS Certificate status is still "Pending validation" six hours later. I ...
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1answer
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Some Macs not authorizing via 802.1x

Hello I have a really weird issue with some macs not being able to connect to 801.1x in some areas on campus. They however can connect in other places on campus. The configs for both switches are the ...
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1answer
465 views

Setting up a Windows domain CA with a wildcard certificate

As the title suggests, I'm trying to set up a new Windows domain. Seemingly a simple thing, and one I've already done before, but this time around, management wants this to be synced up with Office ...
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SAML SP Certificate Changing: do changes actually need to happen at the Identity Provider for a CA-issued cert?

Our certificate that we use for signing SAML redirect requests is expiring. We've renewed the certificate by a trusted CA, but I've been told that once we update the certificate, we need to notify ...
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cloud-config unable to install kubernetes debian repository

I've got a basic cloud-config user-data script that simply installs the Kubernetes repositories on raspbian (hypriot), however, apt-get update seems to fail due to certificate issues. The thing that ...
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1answer
162 views

Intranet Cert Signed by Custom Root CA: I'm Seeing “Revocation function was unable to check”

Background I have a set of internal company websites, which need to have TLS certificates. I went through a whole bunch of tutorials, and ended up using OpenSSL to create a self-signed root ...
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2answers
161 views

Local SSL CA always expires 30 days after creation

I'm following similar steps as this answer to create a local CA. Despite setting the default_days option to 1825 (days) in my config file, the resulting CA certificate is always set to expire 30 days ...
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1answer
384 views

strongSwan VPN Intermediate Certificate Authority

I have been testing out strongSwan VPN on a Linux server in a Windows Active Directory domain. I have managed to get a single-tier PKI with EAP authentication to work, but when I attempt to add a ...
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2answers
624 views

User Certificate vs Computer Certificate

Normally when deploying an SSL VPN solution with a cert check, I would deploy an internal MS CA and configure a GPO to give out computer certificates. The username/password with MFA proves the user is ...
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0answers
149 views

SSH known_hosts entry for port number and tunneling using @cert-authority

I've set up SSH certificate authority on my server, including a signed host key with the applicable principals. I've set up my local known_hosts file to recognize the certificate authority and when I ...
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205 views

Submit unsigned pkcs10 to windows certificate authority

Is it possible to make a Windows Server Certificate Authority accept a PKCS10 certificate request that is unsigned? I get the following error Error Verifying Request Signature or Signing Certificate ...
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34 views

Configure how long requests are displayed in CertSrv web enrollment

I have a Win2008R2 enterprise CA in ADCS and the certificate template is set to ask CA administrator to issue or deny the request. By default, when the user submits the requests through web enrollment,...
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2answers
2k views

RDP presents Self-Signed certificate instead of Certificate Authority's one

Few days ago I witnessed a strange problem within my domain: During RDP connection I see warnings about certificate being not trusted (and I see self-signed certificate, not issued by domain CA) I ...
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3answers
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Minimum Hardware Requirement For Setting Up OpenSSL Certificate Authority in Linux

I've been seeing a lot of OpenSSL Certificate Authority "how tos" for Linux, but if I plan to create our own Certificate Authority for a WAN network both externally and internally... What is the ...
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116 views

Risks of installing a new Certificate Authority

We have a w2k8r2 CA on our network, which only seems to have issued certificates for our domain controllers, and two user accounts. Since it was originally set up, we've gone through a company name ...
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1answer
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StrongswanPKI - Adding status_request or MustStaple TLS extension to certificate?

Using PKI tool from strongswan to setup a CA. Trying to setup the OCSP side of things have run into many issues as per another thread I posted (Strongswan PKI - ED25519 Certifcates - OCSP Responder ...
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1answer
3k views

ERR_CERT_COMMON_NAME_INVALID with internal AD CA wildcard

I have created an internal ADCS CA using this guide, and then submitted a certificate request to create a wild card certificate for my domain eds89.com. Intention behind this being to apply to some of ...
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1answer
184 views

Strongswan PKI - ED25519 Certifcates - OCSP Responder having issues

I am trying to setup an ocsp for the certificates generated out of strongswan PKI - using it as a CA. If I try to use openssl it just throws out Can't open index.txt.attr for reading, No such file or ...
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Changing OpenVPN-AS root CA

I'm trying to set up an OpenVPN-AS instance (on an Azure virtual machine) that users can connect to and connect to some IoT devices behind routers in the field where the routers support OpenVPN. My ...
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35 views

Push CA cert to Mac clients

I have a large group of Mac clients I need to push an internal CA cert out to. How can I do this without going to each one? They are all linked to Active Directory; would pushing a cert out to them ...
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1answer
188 views

DirectAccess Certificate Authentication Breaks After New Certificate Authority Deployed

An environment had two Windows Certificate Authorities, publishing a computer certificate via auto-enrollment for DirectAccess authentication. Customer CA 1 Customer CA 2 The Certificate authorities ...
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1answer
138 views

Update Intermediate CA certificate?

Tonight I updated our TSL certificate. We deploy behind haproxy with a certificate bundled with an intermediate CA crt and private key in .pem file format. Having downloaded the renewed certificate ...
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get SHA256 has of certificate chain of my certificate

I got my server certificate mycert.pem by command: cho -n | openssl s_client -connect <my.server.hostname> | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > mycert.pem. I would like ...
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1answer
285 views

JRE fails to establish LDAPS connection with AD after RootCA cert imported to cacerts truststore

LDAPS is working through ldp.exe and through a number of other programs on windows and linux systems that do not appear to require the Root Cert. at all. Some programs which use JSSE fail to connect ...
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2answers
2k views

Why not validate self signed certificates through DNS-record instead of letsencrypt

I was just wondering. We use a lot of SSL certificates. Nowadays, we almost exclusively use letsencrypt (thanks!). The bottom line of these certificates is, that proof of ownership of the domain name(...
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1answer
2k views

SSL routines:ssl23_write:ssl handshake failure:s23_lib.c:177:

I have an openldap master and 2 openldap slaves. Using a non self-sign CA. openldap master: name debian based on stretch slapd 2.4.44+dfsg-5+d amd64 openssl 1.1.0f-3+deb9u1 amd64 openldap ...
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2answers
265 views

Certificate with SubjectAlternativeName (SAN) gives ERR_CONNECTION_RESET in Google Chrome

There is a non-public-facing application. I am trying to make sure that there are no HTTPS-related warnings/errors. The error I receive after putting the certificate with SAN field (signed by a ...
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3answers
1k views

Windows server 2012 Sub CA fails because the revocation was offline when using root CA certificate from Linux/OpenSSL root CA

I've been working on a lab setting up a two-tier PKI using a Linux (Debian 9 with OpenSSL) root certificate authority and a Windows server 2012 R2 subordinate certificate authority. When I attempt ...