WPA2 Enterprise Authentication Certificate Security

While reading up about WPA2-Enterprise, it states that it is more preferred over WPA2-Personal as it allows authentication via digital certificates which prevents over-the-air attacks.

However, I am unsure of the following implications about this implementation. If WPA2-Enterprise was to be implemented:

  • Can the authentication cert on machine A be dumped out, installed on machine B and use to authenticate to the network?
  • If let machine A was a domain user, but has local admin privileges is the above scenario still possible?
  • Can I issue unique certificates to each machine for authentication or do they have to request one during the authentication process?

Apologies in advance for the weird question, have no previous experience with WPA2-Enterprise at all!

linux – wget ERROR: cannot verify localhost’s certificate, ..Self-signed certificate encountered

How Can I implement a secure https connection on ngnix

I want to implement https on my localhost.I am running http server nginx on ubuntu 20.04

What I did was i issued the command

sudo openssl req -x509 -nodes -days 3650 -newkey rsa:2048 -keyout /etc/ssl/private/localhost.key -out /etc/ssl/certs/localhost.crt -config /tmp/openssl

Then I configured nginx to use ssl as

   listen 443 ssl default_server;
    listen [::]:443 ssl default_server;
    ssl_certificate /etc/ssl/certs/localhost.crt;
    ssl_certificate_key /etc/ssl/private/localhost.key;

And Refreshed and reloaded nginix …ok fine

certutil -d sql:$HOME/.pki/nssdb -A -t "P,," -n localhost.crt -i /etc/ssl/certs/localhost.crt

. .Every thing went fine

The tutorial i followed was from here

But when i tried to connect to https://localhost

I got as

enter image description here

Then I clicked Advance and proceeded ..Then I got a MOZILLA_PKIX_ERROR_SELF_SIGNED_CERT Error in Firefox

enter image description here

But when opening in chrome the error is

enter image description here

when i tried on wget

enter image description here

When I tried on postman

enter image description here

Please help me on how to get a secure self signed trusted https connection on localost

SCEP certificate renewal – NDES event id:28

A customer of mine is attempting to configure a router so that it will authenticate with their client’s NDES server; using SCEP to sign its certificate

I had previously set up a SCEP requestor prototype for my customer using FreeRadius/Debian; in lieu of NDES.
It wasn’t a simple setup since there was also dot1x in the mix.

The requestor is a Mikrotik Routerboard device running RouterOS

The initial SCEP certificate signing request works fine; thanks to the use of an OTP

The problem is that we can’t get the certificate renewal process to work.

The NDES server receives the renewal request from the RouterBoard and fails with the following error message:

Error,19/01/2021 17:26:08,Microsoft-Windows-NetworkDeviceEnrollmentService,28,None,The Network Device Enrollment Service cannot locate a required password in the certificate request. Either a password must be present in the certificate request or the certificate request should be signed with a valid signing certificate. The signing certificate must chain up to a trusted root in the Enterprise store. The signing certificate and the certificate request must have the same subject name or subject alternate name.

When you read it it seems as if either :

  • RouterOS isn’t providing the necessary security info – AFAIK OTP is only required to sign the initially certificate – so this looks like a “red herring”

  • the original certificate isn’t (properly ?) signing the CSR – I assume that this part of RouterOS’ automated renewal process. Not sure what I can do about this

  • the issue could be linked to a difference in common or subject alternate name between the CRT and the CSR.
    I would assume that the RouterOS SCEP implementation generates the CSR based on the existing CRT,
    therefore the common and subject alternate names should coincide

Any ideas, questions or suggestions?

Can find RSA private key for uploading my SSL certificate to Google App Engine

Right now I am trying to upload a SSL certificate from GoDaddy so That I am able to enable HTTPS for my custom domain name for the website hosted on the app. Whenever, I try to upload the SSL certificate I am able to use the PEM file that came with the certificate bundle works well enough, but I don’t seem to have the RSA private key I can use that came with the bundle. I tried to generate a RSA private key using Open SSL but it didn’t seem to generate a key I can add to the app. I just need to if I need to get an RSA private key or is there a work around to this problem?

wi fi – Wifi WPA Enterprise – In android 11 under ‘Online Certificate Status’, what is the difference between the various options?

Recently I noticed that my Note 10 would no longer associate with my wifi but all other phones would. I have since resolved the issue by rerolling my certificates but cannot get the options ‘Require status for all certificates’ or ‘Require status for untrusted certificates’ to work. ‘Request Status’ does work as well as ‘Don’t validate’

‘Require status for all certificates’ fails with on the freeradius end with –

(36) eap: Expiring EAP session with state 0xb8be52eabb005f50
(36) eap: Finished EAP session with state 0xb8be52eabb005f50
(36) eap: Previous EAP request found for state 0xb8be52eabb005f50, released from the list
(36) eap: Peer sent packet with method EAP TLS (13)
(36) eap: Calling submodule eap_tls to process data
(36) eap_tls: Continuing EAP-TLS
(36) eap_tls: (eaptls verify) = ok
(36) eap_tls: Done initial handshake
(36) eap_tls: <<< recv TLS 1.1 (length 0002)
(36) eap_tls: ERROR: TLS Alert read:fatal:internal error
(36) eap_tls: TLS_accept: Need to read more data: error
(36) eap_tls: ERROR: Failed in FUNCTION (SSL_read): error:14094438:SSL routines:ssl3_read_bytes:tlsv1 alert internal error
(36) eap_tls: TLS – In Handshake Phase
(36) eap_tls: TLS – Application data.
(36) eap_tls: ERROR: TLS failed during operation
(36) eap_tls: ERROR: (eaptls process) = fail
(36) eap: ERROR: Failed continuing EAP TLS (13) session. EAP sub-module failed
(36) eap: Sending EAP Failure (code 4) ID 190 length 4

‘Require status for untrusted’ hangs with android eventually giving up with this on the freeradius end –

(5) eap_tls: (eaptls start) = request
(5) eap: Sending EAP Request (code 1) ID 243 length 6
(5) eap: EAP session adding &reply:State = 0xcff1ecc3cf02e118
(5) (eap) = handled
(5) } # authenticate = handled
(5) Using Post-Auth-Type Challenge
(5) Post-Auth-Type sub-section not found. Ignoring.
(5) # Executing group from file /etc/raddb/sites-enabled/default
(5) Sent Access-Challenge Id 247 from 192.168.45.251:1812 to 192.168.45.37:33524 length 0
(5) EAP-Message = 0x01f300060d20
(5) Message-Authenticator = 0x00000000000000000000000000000000
(5) State = 0xcff1ecc3cf02e118ed54fc1c4b664912
(5) Finished request
Waking up in 4.9 seconds.
(5) Cleaning up request packet ID 247 with timestamp +19
Ready to process requests

What do I need to implement or correct so these two options will work as well?

Ingress client certificate authenticate requires CA certificate to be stored in secret?

I want to enable client-certificate authentication in my AKS cluster and I have a basic question which I just don’t seem to understand. As per the docs, ingress requires the CA certificate to be stored in a secret. My question is: Assuming that I use client-certificates that have been issued by a trusted CA (that’s how it works right? CAs issue client-certificates that they sign?), why would a trusted CA give me their CA certificate to be stored in AKS cluster as a secret? Do CAs just hand out their certificates out to public? Isn’t that a security issue? (since I can sign client-certificates using that CA certificate)

tls – Validate that CA really signed certificate

What is the process of validating that a ssl certificate I try to validate is really signed by CA I trust?
What is the part of the certificate (The one I try to validate) is the one cant be faked?
From what I understand there should be some data encrypted (and possibly hashed) by the CA private key, so I can decrypt it with the public key of the CA certificate in my trust store and compare hashes.

security – How to install a certificate on Android TV?

I’ve installed certificates (especially the FiddlerRootCA) on several android devices already, since it has a security section in the menus.

On Android TV on the other hand, I was not able to find anything in the settings, altough I went through them? I would like to install the certificate here on my Android TV stick, on which I have adb root access to.

How can I install a certificate on my Android TV?

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