OpenSSL
cfssl
Our great sponsors
OpenSSL | cfssl | |
---|---|---|
149 | 24 | |
24,142 | 8,457 | |
1.5% | 1.2% | |
9.9 | 7.5 | |
6 days ago | 7 days ago | |
C | Go | |
Apache License 2.0 | BSD 2-clause "Simplified" License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
OpenSSL
-
Heartbleed and XZ Backdoor Learnings: Open Source Infrastructure Can Be Improved Efficiently With Moderate Funding
Today, April 7th, 2024, marks the 10-year anniversary since CVE-2014-0160 was published. This security vulnerability known as "Heartbleed" was a flaw in the OpenSSL cryptography software, the most popular option to implement Transport Layer Security (TLS). In more layman's terms, if you type https:// in your browser address bar, chances are high that you are interacting with OpenSSL.
-
Ask HN: How does the xz backdoor replace RSA_public_decrypt?
At this point I pretty much understand the entire process on how the xz backdoor came to be: its execution stages, extraction from binary "test" files etc. But one thing puzzles me: how can the ifunc mechanism be used to replace something like RSA_public_decrypt? Granted this probably stems from my lack of understanding of ifunc, but I was under the impression that in order for the ifunc mechanism to work in your code, you have to explicitly mark specific function with multiple implementations with __attribute__ ((ifunc ("the_resolver_function"))). Looking at the source code of the RSA function in question, ifunc attribute isn't present:
https://github.com/openssl/openssl/blob/master/crypto/rsa/rsa_crpt.c#L51
So how does the backdoor actually replace the call? Does this means that the ifunc mechanism can be used to override pretty much anything on the system?
-
Use of HTTPS Resource Records
OpenSSL and Go crypt/tls has no support yet, so none of the webservers that depend on them support it. Apache, Nginx, and Caddy, they all need upstream ECH support first.
- https://github.com/openssl/openssl/issues/7482
- https://github.com/openssl/openssl/pull/22938
- https://github.com/golang/go/issues/63369
- openssl-3.2.0 released
- Large performance degradation in OpenSSL 3
- OpenSSL 3.2 Alpha 2
-
Encrypted Client Hello – the last puzzle piece to privacy
If I'm understanding the draft correctly, I think the webserver you're hosting your sites on would need it implemented as it requires private keys and ECH configuration. In the example of nginx since it uses openssl, openssl would need to implement it. I found an issue on their Github but it's still open: https://github.com/openssl/openssl/issues/7482
- eBPF Practical Tutorial: Capturing SSL/TLS Plain Text Data Using uprobe
-
OpenSSL Versions... whats the plan here
I confirmed that the systm was on 1.1.1f with openssl version command. Hmm...... I check the openssl version in the repo with apt list... LOL package names wernt helpful. finally went to the repo pages and found that its still on 1.1.1f, https://launchpad.net/ubuntu/+source/openssl. Meenwhile I looked up the version history on https://www.openssl.org/ and saw that 1.1.1v was released at the beginning of this month... ok. I can understand it it was out less then 30 days. I looked up when f came out, end of MARCH 2020. NEARLY 3-1/2 YEARS
- I am looking for a troubled/bad open source codebase
cfssl
- Running one’s own root Certificate Authority in 2023
- Selfhosted CA tutorial
-
i must be the only guy that understands certificates
cfssl is kinda outright better version of that.
-
SSL certificate problem: unhandled critical extension
The Cloudflare SSL tools at https://github.com/cloudflare/cfssl might help. Here's what it shows for one of the example Snake Oil certs:
-
Private CA management
I've used this in the past and it worked great. https://github.com/cloudflare/cfssl
- Linux Certificate Authority root stores have a too simple view of 'trust'
- Creating an internal Certificate Authority in 2022 that is accepted by modern web browsers.
-
How to create users in Kubernetes
The first step is to create the source key that represents our user. This key is created using a tool like openssl but another popular tool to use is cfssl, created by Cloudflare. Some folks think cfssl is easier to use, and it definitely looks easier to script. But for this example we will use openssl. You can also choose to create the key using a number of different algorithms. For this example we will use ED25519.
-
[Legal notice] IoT Core will be discontinued on Aug. 16, 2023
TLS/SSL worked well with client certificates generated by the CFSSL API.
-
Feedback on a Self-signed SSL CA?
Not sure if relevant but we used tooling from CloudFlare in the past: https://github.com/cloudflare/cfssl
What are some alternatives?
GnuTLS - GnuTLS
easy-rsa - easy-rsa - Simple shell based CA utility
Crypto++ - free C++ class library of cryptographic schemes
LetsEncrypt-PRTG - Post request script to install an SSL certificate obtained with Certify the Web or win-acme in PRTG.
mbedTLS - An open source, portable, easy to use, readable and flexible TLS library, and reference implementation of the PSA Cryptography API. Releases are on a varying cadence, typically around 3 - 6 months between releases.
acme.sh - A pure Unix shell script implementing ACME client protocol
libsodium - A modern, portable, easy to use crypto library.
certificates - 🛡️ A private certificate authority (X.509 & SSH) & ACME server for secure automated certificate management, so you can use TLS everywhere & SSO for SSH.
LibreSSL - LibreSSL Portable itself. This includes the build scaffold and compatibility layer that builds portable LibreSSL from the OpenBSD source code. Pull requests or patches sent to [email protected] are welcome.
acme-dns - Limited DNS server with RESTful HTTP API to handle ACME DNS challenges easily and securely.
Botan - Cryptography Toolkit
step - An async control-flow library that makes stepping through logic easy.