In the realm of Virtual Private Networks (VPNs), OpenVPN and WireGuard stand out as two prominent solutions. Each has its strengths and weaknesses, making them suitable for different use cases. In this article, we will delve into a comparative analysis of OpenVPN and WireGuard, focusing on key aspects such as security, speed, and resource usage.
Security OpenVPN OpenVPN is renowned for its robust security features. It employs the OpenSSL library for encryption and supports various cryptographic algorithms.
What is Authenticated Encryption Authenticated encryption is a cryptographic technique that combines both data encryption and message authentication into a single operation. It ensures not only the confidentiality of data but also its integrity, effectively protecting against unauthorized access and tampering. By incorporating encryption and message authentication codes (MACs) together, authenticated encryption guarantees that not only is the information kept secret from unauthorized parties, but any modifications or alterations to the data can be detected, preventing malicious manipulation.
Introduction OpenSSL and LibreSSL are two popular open-source cryptographic libraries that provide essential security features for various applications and protocols. While both libraries serve a similar purpose, they differ in their origins, philosophies, and approaches to security. In this article, we will explore the history, security, and performance aspects of OpenSSL and LibreSSL, shedding light on their similarities and differences.
OpenSSL and LibreSSL History OpenSSL OpenSSL is a widely adopted and mature cryptographic library that originated in 1998 as a fork of the SSLeay library.
openssl_project/openssl Vulnerability Summary Vendor name: openssl_project Product name: openssl Total vulnerabilities: 2 (as 2023-05-04) openssl_project/openssl Vulnerability List CVE-2018-20997: An issue was discovered in the openssl crate before 0.10.9 for Rust. A use-after-free occurs in… Published: 2019-08-26T18:15:00 Last Modified: 2019-08-30T12:41:00
Summary
An issue was discovered in the openssl crate before 0.10.9 for Rust. A use-after-free occurs in CMS Signing.
Common Weakness Enumeration (CWE): CWE-416: Use After Free CWE Description: Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
openssl/openssl Vulnerability Summary Vendor name: openssl Product name: openssl Total vulnerabilities: 213 (as 2023-05-04) openssl/openssl Vulnerability List CVE-2021-4160: There is a carry propagation bug in the MIPS32 and MIPS64 squaring procedure. Many EC algorithms… Published: 2022-01-28T22:15:00 Last Modified: 2022-02-07T15:24:00
Summary
There is a carry propagation bug in the MIPS32 and MIPS64 squaring procedure. Many EC algorithms are affected, including some of the TLS 1.3 default curves. Impact was not analyzed in detail, because the pre-requisites for attack are considered unlikely and include reusing private keys.
redhat/openssl Vulnerability Summary Vendor name: redhat Product name: openssl Total vulnerabilities: 28 (as 2023-05-04) redhat/openssl Vulnerability List CVE-2018-16395: An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x… Published: 2018-11-16T18:29:00 Last Modified: 2019-10-03T00:03:00
Summary
An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. When two OpenSSL::X509::Name objects are compared using ==, depending on the ordering, non-equal objects may return true.
ruby-lang/openssl Vulnerability Summary Vendor name: ruby-lang Product name: openssl Total vulnerabilities: 2 (as 2023-05-04) ruby-lang/openssl Vulnerability List CVE-2018-16395: An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x… Published: 2018-11-16T18:29:00 Last Modified: 2019-10-03T00:03:00
Summary
An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. When two OpenSSL::X509::Name objects are compared using ==, depending on the ordering, non-equal objects may return true.
The latest CVE Vulnerability list for openssl/fips_object_module openssl/fips_object_module Vulnerability Summary Vendor name: openssl Product name: fips_object_module Total vulnerabilities: 1 (as 2023-04-30) openssl/fips_object_module Vulnerability List CVE-2007-5502: The PRNG implementation for the OpenSSL FIPS Object Module 1.1.1 does not perform auto-seeding… Published: 2007-12-01T06:46:00 Last Modified: 2017-07-29T01:33:00
Summary
The PRNG implementation for the OpenSSL FIPS Object Module 1.1.1 does not perform auto-seeding during the FIPS self-test, which generates random data that is more predictable than expected and makes it easier for attackers to bypass protection mechanisms that rely on the randomness.
OpenSSL is an open-source software library that provides secure communications over computer networks and is widely used for implementing encryption and decryption for various purposes. In this tutorial, you will learn how to encrypt and decrypt files using OpenSSL on the command line.
Step 1: Install OpenSSL OpenSSL is typically installed on most Unix-based systems, including Linux and macOS. To verify if OpenSSL is installed on your system, run the following command in the terminal:
OpenSSL and BoringSSL are two of the most widely used cryptography libraries in the world, both providing essential encryption and secure communication services to millions of websites, applications, and devices. While both libraries are widely trusted, they differ in important ways when it comes to security and performance. In this article, we’ll take a closer look at the two libraries and compare them in terms of vulnerabilities, performance, and source code.
The most famous OpenSSL vulnerabilities OpenSSL is a widely used open-source cryptography library that provides secure communication for many websites and applications. Despite its widespread use, OpenSSL has suffered from a number of critical vulnerabilities over the years, exposing sensitive information and putting the security of millions of users at risk. In this article, we’ll take a look at some of the most famous OpenSSL vulnerabilities.
Heartbleed (2014) - One of the most famous OpenSSL vulnerabilities of all time, Heartbleed allowed attackers to steal sensitive information, including passwords and encryption keys, from memory.
The most famous BoringSSL vulnerabilities BoringSSL is a fork of OpenSSL, created by Google, that aims to provide a more secure and performant cryptography library. Despite its focus on security, BoringSSL has suffered from a number of critical vulnerabilities over the years, exposing sensitive information and putting the security of millions of users at risk. In this article, we’ll take a look at some of the most famous BoringSSL vulnerabilities.
OpenVPN is an open-source virtual private network (VPN) solution that provides a secure and encrypted connection between networks. It allows you to securely access remote networks and protect your online activities from being monitored. In this article, we’ll take a step-by-step approach to configuring OpenVPN on your system.
Install and Set up OpenVPN Install OpenVPN: The first step in configuring OpenVPN is to install it on your system. On Windows systems, you can download the OpenVPN client from the official website and follow the installation instructions.
CRL Introduction CRLs (Certificate Revoke List) are signed data structures that contain a list of revoked certificates. The integrity and authenticity of the CRL is provided by the digital signature appended to the CRL. The signer of the CRL is typically the same entity that signed the issued certificate.
CRL is defined in RFC 5280: Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile CRL File Format CRL encode in X509 format, CRL v2 structure as below:
OCSP Introduction The Online Certificate Status Protocol ( OCSP) is documented in the RFC 6960: X.509 Internet Public Key Infrastructure Online Certificate Status Protocol.
OCSP is a relatively simple request/response protocol useful in determining the current status of a digital certificate without requiring CRLs.
OCSP encoded in ASN.1.
OCSP Request An OCSP request contains the following data:
protocol version (currently only Version 1 is defined). service request. one or more target certificate identifier.
