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Questions tagged [pyopenssl]

Pyopenssl is a Python interface to the OpenSSL library.

Pyopenssl is a Python interface to the OpenSSL library.

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Verification of a certificate chain fails on the leaf certificate

I produced a PEM certificate chain (CA, intermediate and leaf) using pyopenssl, and I wanted to confirm that I defined everything properly. Here are the steps I took: I made the three PEM certificates, self signed the CA and defined the basic…
GabeL
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How to decrypt openssl encrypted file in Python

I have a file which was encrypted using Linux command line tool openssl. eg: openssl smime -encrypt -binary -aes-256-cbc -in 400000005f16bec1298bbc0c0079371de75e -out 400000005f16bec1298bbc0c0079371de75e_enc -outform DER /usr/local/etc/key.pem How…
Suresh
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Python Creating SSL connection using ssl.PROTOCOL_TLSv1_1 and ciphers "RC4-SHA" failing with error: sslv3 alert handshake failure (_ssl.c:1108)

I am trying to connect to one of my server in Python. On my Windows 10 system when I issue a : openssl s_client -connect host_ip:443 The result is : --- SSL handshake has read 858 bytes and written 494 bytes --- New, TLSv1/SSLv3, Cipher is…
May
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Facing an error when using pyopenssl_psk to create secure connection for cipher suite PSK-AES128-GCM-SHA256

Facing an error while using pyopenssl_psk module for cipher suite PSK-AES128-GCM-SHA256 to achieve secure connection between server and client. am I missing anything here? Error : ctx.set_psk_client_callback(client_callback) AttributeError:…
danny
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Signing for requesting a jwt to use on an API in python3

I try to generate a jwt token for connecting to transip api, but can't figure out how to generate as Signature to request one. I would prefer to do it in Python3. How should I do this? Api documentation of transip and see the section of…
Jeromba6
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Django Request with a SSL Certificate

Within a django view, I am required to make a post request to another API. The API requires SSL certificate to be attached to the request. I have the ssl .crt file. How can I implement this? I tried to use this implementation here:…
user9469766
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Signature Algorithm SHA256withRSA failed in Java

I have identically generated and signed certificates in Raspberry Pi and Ubuntu Linux. SSL connection works fine on Raspberry while fails on Ubuntu with error Received fatal alert: unknown_ca During certificate verify procedure I found…
vico
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Use SSL module with twisted instead of Pyopenssl

I currently have a twisted webapp which relies on pyopenssl. We are trying to move away from pyopenssl, which is a 3rd party dependency, in favour of the built in SSL module. Would anyone know if this is possible with twisted?
lambdaeagle
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How to use pysft module in Azure Databricks Notebook

I am trying to make a sftp connection using pysftp module in databricks notebook. Here is the code that i had written. import pysftp as sftp HOSTNAME = my_sftp_hostname USERNAME = my_sftp_username PASSWORD = my_sftp_password FOLDER =…
Vipendra Singh
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ECDHE Curve25519 Key Exchange Signature and KeyValue Fields

I have an API where I need to pass the "KeyMaterial" which according to API Docs is for: Contains the cryptographic parameters that are required to perform End-to-End encryption for sharing the information between the producer and the consumer in a…
dg428
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How to trust self signed certificate of badssl.com with Python3 requests

import requests certificate = "-----BEGIN…
mdzh
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DIfference between crypto.X509 and crypto.X509Req in pyOpenSSL

The pyOpenSSL documentation does not tell much about the difference between crypto.X509 and crypto.X509Req in pyOpenSSL. Examples available on the internet uses both, however I am unable to find a clear difference between the two.
Vijayendar Gururaja
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pyOpenSSL install issues trying to use python Flask with HTTPS

I have installed OpenSSL in my windows, Location is: C:\Program Files\OpenSSL-Win64 When I open a command prompt and type --> openssl then, version, I see --> OpenSSL 1.1.1d 10 Sep 2019 and set environment variables as…
Ghost
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two certificates sent during peer verification. Why?

def cert_check(conn,cert,errnum,depth,ok): print 'Got cert',cert.get_subject() return ok Server: ctx =…
Lelouch Lamperouge
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Trying to extract Certificate information in Python

I am very new to python and cannot seem to figure out how to accomplish this task. I want to connect to a website and extract the certificate information such as issuer and expiration dates. I have looked all over, tried all kinds of steps but…
Virtual Penman
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