cfssl | CFSSL : Cloudflare 's PKI and TLS toolkit | TLS library

by cloudflare Go Version: v1.6.4 License: BSD-2-Clause

X-Ray Key Features Code Snippets Community Discussions(5)Vulnerabilities Install Support

kandi X-RAY | cfssl Summary

cfssl is a Go library typically used in Security, TLS applications. cfssl has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

CFSSL: Cloudflare's PKI and TLS toolkit

Support

Quality

Security

License

Reuse

Support

cfssl has a medium active ecosystem.

It has 7842 star(s) with 1066 fork(s). There are 217 watchers for this library.

It had no major release in the last 12 months.

There are 240 open issues and 293 have been closed. On average issues are closed in 244 days. There are 49 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of cfssl is v1.6.4

Quality

cfssl has 0 bugs and 0 code smells.

Security

cfssl has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

cfssl code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

cfssl is licensed under the BSD-2-Clause License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

cfssl releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

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cfssl Key Features

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cfssl Examples and Code Snippets

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Community Discussions

Trending Discussions on cfssl

Can I use ssh-keygen and cfssl interchangeably for ssh login?

Why am I getting this "unauthorized" error when trying to mirror OKD installation images from Quay.io?

What kind of certificates do I need for configuring an image registry?

How to create a test server which uses TLS client authentication in Go?

kubernetes flannel network service CrashLoopBackOff

QUESTION

Can I use ssh-keygen and cfssl interchangeably for ssh login?

Asked 2021-Apr-10 at 19:33

It's slightly embarrassing to ask this, but here it goes: What's the difference between generating public/private keys via ssh-keygen and cfssl?

I've successfully used ssh-keygen to create pub/private key credentials that can be used to ssh into a server. I've also successfully used cfssl to create a private key & certificate for a web site. However, I can't seem to figure out how to use cfssl to do what ssh-keygen does.

Since they both can be used to generate public/private RSA 4096 keys, it seems as if they could be used interchangeably. Unfortunately, no matter how many different combinations I try, or how much I search the interwebs, I can't seem to find a working example.

I'm starting to think that there's something I fundamentally don't understand regarding each tool's approach to encryption.

People of stackoverflow land... have mercy on me, and please point out the error of my ways. Your help is truly appreciated.

...

ANSWER

Answered 2021-Apr-10 at 19:33

No, these two types of keys aren't interchangeable. RSA is an algorithm for encryption and digital signatures. It is used in both TLS (for web sites) and SSH, but those two protocols, while they both support RSA keys, use the algorithm differently.

A protocol specifies a (hopefully secure) technique for using standard algorithms and protecting data with it, and there are many secure ways to use RSA to sign data, which differ based on the protocol. Similarly, both TLS and SSH can use AES-GCM to encrypt and authenticate data, but they will use it differently.

Moreover, even if you could generate keys for one with the other, you generally don't want to reuse keys for different purposes. That's because in some cases, an attacker can capture a valid message in one protocol and use it in the other protocol to impersonate the legitimate party.

Do note that the private key formats typically used by OpenSSH and TLS implementations are often the same, but the public key formats are not. An SSH public key is going to look totally different than an X.509 public key used with TLS.

If you need to create keys for use with SSH, you should use ssh-keygen, and if you need to create a key for use with your web server or another TLS server, use a tool for that, like openssl or cfssl.

Source https://stackoverflow.com/questions/67037112

QUESTION

Why am I getting this "unauthorized" error when trying to mirror OKD installation images from Quay.io?

Asked 2020-Nov-10 at 17:00

I have been working on an installation of OKD on an air-gapped environment. The first major step has been mirroring the OKD images so that they can be moved over to the new environment and pulled locally. I've been following a combination of the OpenShift documentation and this article, as well as this resource for getting my certificates set up. I have been making slow but consistent progress.

However, I am now having trouble when attempting to actually mirror the files using

...

ANSWER

Answered 2020-Nov-10 at 17:00

It has been determined that the OKD documentation is inaccurate at the time that I am posting this answer, and was instructing readers to pull from the OCP image repository rather than the OKD repository, which apparently requires additional credentials. A bug has been logged and the documentation will hopefully be updated soon.

The correct environment variables and full command to mirror the images are as follows:

Source https://stackoverflow.com/questions/64668407

QUESTION

What kind of certificates do I need for configuring an image registry?

Asked 2020-Nov-02 at 15:07

I'm working on creating a local image registry for an OKD installation by following along with this Medium article which assumes the creation of

the self-sign CA, server certificate with both the short and fully qualified hostname of this VM

It calls for

the CA cert, server cert, server key saved as myca.pem, registry.pem, registry-key.pem

I'm pretty new to certs so I was following the guidance of this article and using cfssl (as recommended by the former article) for generating those. I've gotten through generating and signing the "Intermediate CA". I'm a little unclear on where and how to generate the specific certs the former article requires. I'd really appreciate some clarifications or guidance, if possible, on the following issues.

I believe the ca.pem generated in the first "CA Authority" process in the latter article is the equivalent of the myca.pem file mentioned in the former article, but with a different name. Is this the case?
I am unclear where exactly the registry.pem and registry-key.pem files are generated. Are these just certificates generated using the "server" profile and assigned the name "registry"? Are they a completely separate profile I should be adding to the cfssl.json file? Are they neither?
In whichever case, are there any additional usages I need in the cfssl.json file or additional config files I need to create in order for it to be suitable for an image registry? Do I still need to create the additional "host certificate config file" mentioned in the latter article?

I have tried absorbing as much information about ssl certificates as I could but so far I am unfortunately not finding anything that clears up the specific questions I have. I am sure this is probably simpler than I realize, so any help clarifying what's needed here would be profoundly appreciated. Thanks very much.

...

ANSWER

Answered 2020-Nov-02 at 15:07

I was able to figure this all out. Here are the answers to my three questions:

This was the correct assumption.
These are generated using the "server" profile and given whichever name I choose.
I had to create the additional host certificate config file and point the CN in that file to my local fully qualified domain name. This config file was then used as an argument for generating the certificates.

Source https://stackoverflow.com/questions/64591232

QUESTION

How to create a test server which uses TLS client authentication in Go?

Asked 2020-Apr-07 at 16:38

I'd like to write a unit test for an HTTP handler which extracts certain information from a device's certificate. I've found this gist, https://gist.github.com/ncw/9253562, which uses openssl to generate the certificates and simply reads the resulting files in its client.go and server.go. To make things a bit more transparent, however, I'd like to generate the certificates using Go's standard library.

Here is my attempt so far at the unit test (available at https://github.com/kurtpeek/client-auth-test):

...

ANSWER

Answered 2020-Apr-07 at 00:24

Looking a bit more closely at ncw's gist, I noticed that one key difference was the setting of the InsecureSkipVerify option in the client's TLS config to true. I added this, so

Source https://stackoverflow.com/questions/61069794

QUESTION

kubernetes flannel network service CrashLoopBackOff

Asked 2020-Feb-10 at 12:53

I am running kubernetes cluster with multi master (3 master nodes) with HA Proxy and also I am Using external etcd in this projects for ssl generate I'm using cfssl (cloudflare)

I Create etcd service in each master node

...

ANSWER

Answered 2020-Feb-09 at 13:49

For flannel to work correctly, you must pass --pod-network-cidr=10.244.0.0/16 to kubeadm init.

Source https://stackoverflow.com/questions/60137148

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