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Questions tagged [self-signed]

Self signed certificates.

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Self-Signed Certificates on Management Interfaces - Cyber Security Standards

We have dozens of internal management interfaces on our appliances that use self-signed certificates - ILO, DRAC, switch management, etc. These certificates display a warning in the browser, but their expiry or lack of trust does not break the…
Jay
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Authenticating root certificate

I'm building a web service and have questions regarding authentication. I have a strict requirement that this application only run on company machines. We have a root certificate this is installed on all the machines in the company. I'm planning to…
secert
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NET::ERR_CERT_INVALID in Chrome/Opera on Linux

I have set up a self-signed CA in a development environment and have issued a server certificate to a test website. The issue I'm having is that the certificate is being rejected by the browser with NET::ERR_CERT_INVALID This only happens with…
Aditya K
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Does signing of CSR by the same private key create self-signed certificate?

I know how to create a self-signed certificate in a one command: openssl req -x509 -newkey rsa:4096 \ -keyout my.key -passout pass:123456 -out my.crt \ -days 365 \ -subj /CN=localhost/O=home/C=US/emailAddress=me@mail.internal \ -addext…
gavenkoa
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Register a new client with self-signed certificate

I'm trying to understand a series of steps for an authentication system I want to replicate. The steps are executed by this script. To sum up, it does the following: It runs in a Raspberry Pi and the main objective is to register and login the…
Miguel
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Self signed SSL certificate usage for private site

I have a website that is not supposed to be open to the public and the URL is hidden. Currently, I use Comodo certs to do the SSL, but I'm wondering since only approved devices should be accessing it, whether it makes sense to use a self-signed…
Kilisi
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Error Loading extension 'copy_extensions' in Openssl

While running the following command on Ubuntu 19.10, with OpenSSl 1.1.1c 28 May 2019: openssl req -config ${CNF_FILE} -key ${PRIVATE_FILE} -new -x509 -days 10950 -sha384 -extensions v3_ca -out ${CERT_FILE} I receive the following output: Error…
jj_inno
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Why do we need to sign the self-signed certificate?

When we add a self-signed certificate to a device's list of trusted root certificates, we're already trusting it. So, why should it be signed with the server's private key? Signatures only ensure that the certificate was verified by an trustworthy…
Daud
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While importing certificates in keystore, do we treat these like CA root certificates?

When we need to call an internal domain via HTTPS, Java doesn't allow it because it doesn't recognize the certificate that those domain web servers are sending (probably because those certificates are self-signed given that these domains are…
Daud
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.Net WebClient - self signed certificate

I have two applications (.net) on two web-servers. The first application will need to do a request (via WebClient) to the second and get results. I need to ensure Encryption, data integrity, and authentication. Let's say I create a self signed…
J1mak0s
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encrypting TCP and UDP with self signed cert

I don't have much experience in computer security and I am developing a server for a project. I'm using a tcp connection and UDP packets for some real time data transmission. I want both of these channels encrypted using a self signed cert. What I…
Bhanuka Yd
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How to bypass Certificate Authority for Local site?

We made a site which will be used only in local (is not publicity available). It supports https with self signed cert and key. Now, if I use the site - it says 'your connection to this site is not secure'. I know we need to buy certification from…
again
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RDP - Why self signed certifcate is trusted on client-side?

Here is the issue I can't resolve. Remote RDP server presents a self-signed certificate, and I want to block any connection on client-side when RDP server is using non compliant certificate. I found a configuration that should enforce server…
crypto-learner
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