My python application is running locally on http://0.0.0.0:80/
Later, to make SSL connection I generated MyCert.crt and Mycert.key files.
Later, after providing the location of certificate and key files. My application works perfect and starts running over https connection as per expectation.
code snippet:
from OpenSSL import SSL
context = ("C:/myCert.crt", "C:/Mycert.key")
app.run(host="0.0.0.0", port='80',ssl_context = context)
Now, I import the same certificate to: windows certificates manager -> Trusted Root Certification Authorities. It shows certificate name as localhost
Now, my goal is to access the certificate for same python application and start using it from windows certificate manager.
I referred couple of libraries(requests, wincertstore) but I am unable to understand them as I am new in this domain.
How Do I modify my python code to access this certificate.
you need to change your port firstly, 443 will be great (as far as we know, https go over 443)
and replace your line with this one:
app.run(host='0.0.0.0', port=443, debug=True, ssl_context=('/home/ubuntu/cert/myCert.pem', '/home/ubuntu/cert/myCert2.pem'))
read this article, it will help you:
https://blog.miguelgrinberg.com/post/running-your-flask-application-over-https
Related
I have a flask application and I'm trying to run it on https://127.0.0.1:5000/ server.
I'm using below code:
if __name__ == '__main__':
app.run(debug=True, ssl_context='adhoc')
But when I run my program and open the link it says your connection is not private. Is this error related to certificates or can we tackle this from our code?
This is a certificate error.just click advanced and accept the certificate.It happen because you are using unsigned certificate.Flask default server is not suitable for production use.I prefer u to use gunicorn with ngnix if u want to u ssl in proper way.If want to bypass this error just configure ur browser setting to accept the certificate
According to my point of view you have to create a certificate. Further you will have to install pyopenssl as well. Detailed article will be on the following site.
i've written a small OPC-UA-Client in Python which acts as datalogger for PLC's with integrated OPC-UA Server.
The Connection with no security works fine but i want to secure it with a certificate.
I can import trusted certificates to the server and export the server certificate but how can i generate my own certificate ?
Thanks
You can use openssl to generate your own self-Signed certificate.
https://www.openssl.org/source/
Be Carefull with the extensions tho sometimes they demand .der .cer or as .pem and you might get an outform .crt.
How to create them:
https://www.ibm.com/support/knowledgecenter/en/SS8JFY_9.2.0/com.ibm.lmt.doc/Inventory/security/t_ssl_creating_certs.html
https://dzone.com/articles/secure-communication-with-tls-and-the-mosquitto-broker
Types of encryption:
https://blog.storagecraft.com/5-common-encryption-algorithms/
If you show your program maybe I can help you out.
I am writing a Flask Web-Application and use eventlet as the networking library for that application (eventlet is wrapped by Flask-SocketIO to allow asynchronous operation)
Following this guide I have been successfully creating a SSL key- and cert-file which I pass to the WSGI Server
socket_io.run(app,
host=APP_HOST,
port=APP_PORT,
keyfile='ia.key',
certfile='ia.crt')
This works fine but unfortunately Safari / Chrome says that my SSL-Certificate is not trustworthy when I access the page for the first time.
The Chrome-Failure is the following:
NET::ERR_CERT_COMMON_NAME_INVALID
How to I generate a valid SSL Certificate so that the browsers don't show that error when a user connects to the web application the first time!?
That is because it is something called a "Self Signed Certificate", which is not from any trusted company, so any modern browser auto-detects this as an untrusted site. If you are using a UNIX-based operating system, (Linux, or macOS, Fedora, and more), you can use what I am using. You have to generate new certification from a trusted site.
This is what I use to get a TRUSTED certificate that most browsers can use: https://certbot.eff.org/instructions.
I changed my Webserver from HTTP to HTTPS with "Let"s Encrypt".
The Webserver contains an API, and I have an Python application, which uses the API.
Under Linux is all fine, but under Windows I receive this below, when I'm logging in.
[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)
My thought was, that the SSL certificate isn't installed.
So I downloaded the "isrgrootx1.der" and "lets-encrypt-x1-cross-signed.der" renamed both to the ending "*.cer".
Then I opened the Windows console, and run this:
certutil -addstore "Root" "isrgrootx1.cer".
certutil -addstore "Root" "lets-encrypt-x1-cross-signed.cer".
The second command failed, because it isn't a root certificate.
My question is: In which group has the "lets-encrypt-x1-cross-signed.cer" to be installed?
You shouldn't need to add "lets-encrypt-x1-cross-signed.cer" to your Windows machine, since it's only an intermediate certificate. And you shouldn't need to add "isrgrootx1.cer" either, since Let's Encrypt certificates chain to "DST Root X3", which is already included with Windows.
Most likely your web server was not configured to send the intermediate certificate. If you're using Certbot, for instance, you'll want to configure your web server using "fullchain.pem" rather than "cert.pem".
I'm using the following code to interact with a Magento webstore using the XMLRPC api. Magento API Python XMLRPC
Everything was working ok until we made a change on our web server to SSL
Now I'm getting the following error.
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:581)
I'm not sure why the certificate is failing as we have an EV certificate and all browsers are showing this as ok.
My connection string is:
How can I resolve this / over-ride the code
I'm fairly new to Python so please go easy :o)
magento = MagentoAPI("www.website.co.uk", 443, "myUsername", "myPassword", "/api/xmlrpc", True)
Python, or better the OpenSSL library it is using, can not verify the validity of the certificate of the server. There are many possible reasons: bad configuration, missing intermediate or CA certificate, wrong CN...
A first step could be to go to this site and let it test the SSL/TLS capabilities of the server: https://www.ssllabs.com/ssltest/
It will give you hints on how to solve problems as well.
Python verifies certs via its own bundle, check where it is located by
>>> import certifi
>>> certifi.where()
'/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/certifi/cacert.pem'
and add your certificates to the end of that file.