The Inte et is accustomed to the fact that any two parties can exchange information securely without ever having to meet in advance. This magic is made possible by key exchange algorithms, which are core to certain protocols, such as the Transport Layer Security (TLS) protocol, that are used widely

This is not what I imagined my first blog article would look like, but here we go.On February 1, 2022, a configuration error on one of our routers caused a route leak of up to 2,000 Inte et prefixes to one of our Inte et transit providers. This leak lasted for 32 seconds and at a later time 7 seco

Ever since the (public) invention of cryptography based on mathematical trap-doors by Whitfield Diffie, Martin Hellman, and Ralph Merkle, the world has had key agreement and signature schemes based on discrete logarithms. Rivest, Shamir, and Adleman invented integer factorization-based signature and

This post is also available in Français, Español, Deutsch, 简体中文, 日本語. Cloudflare’s mission is to help build a better Inte et. We’ve invested heavily in building the world’s most powerful cloud network to deliver a faster, safer and more reliable Inte et for our users. Today, we’re taking a big ste

Cryptographic code is everywhere: it gets run when we co ect to the bank, when we send messages to our friends, or when we watch cat videos. But, it is not at all easy to take a cryptographic specification written in a natural language and produce ru ing code from it, and it is even harder to vali

An introduction to formal analysis and our proof of the security of KEMTLSGood mo ing everyone, and welcome to another Post-Quantum–themed blog post! Today we’re going to look at something a little different. Rather than look into the past or future quantum we’re going to look as far back as the ‘8

As a large data processing country, Germany is at the forefront of security and privacy regulation in Europe and sets the tone for other countries to follow. Analyzing and meeting the requirements to participate in Germany’s cloud security industry requires adherence to inte ational, regional, and

For the last three years, the Crypto Forum Research Group of the Inte et Research Task Force (IRTF) has been working on specifying the next generation of (hybrid) public-key encryption (PKE) for Inte et protocols and applications. The result is Hybrid Public Key Encryption (HPKE), published today

Theoretically, there is no impediment to adding post-quantum cryptography to any system. But the reality is harder. In the middle of last year, we posed ourselves a big challenge: to change all inte al co ections at Cloudflare to use post-quantum cryptography. We call this, in a cheeky way, “post-

“People ask me to predict the future, when all I want to do is prevent it. Better yet, build it. Predicting the future is much too easy, anyway. You look at the people around you, the street you stand on, the visible air you breathe, and predict more of the same. To hell with more. I want better.”—

Hello I was wondering how secure the cgi-bin directory is. I need to read a Google spreadsheet and display some of its contents on a webpage. This means I need to have login credentials in a script inside of the cgi-bin directory. Since this is in the public_html/cgi-bin directory, does this mean th...

Hi, I'm trying to add a TXT record for my customer's Microsoft, but when I do, I get an error like this Error: The DNS zone file is invalid. (Line 103: TTL set to prior TTL (600)) Do you have any suggestions for this problem? Thanks

hello , i am creating online ecommerce SAAS platform , user can create online store within 10 mins . this platform like shopify , user can add his own domain and have it's own store the problem is with addons domains, if we user want to add domain we do this manually via cpanel -> addon domain. we w...

Hi, there are getting some attacks from some of Datacenter's and VPS. I want to block them all by AS number. Example: Is there any possibility to do that in WHM or using some 3rd party plugin?

I have issue that make me frustation. After fresh install cpanel cloudlinux mysql 8. Now my site having access timeout every 3-4 hour. Then i restart mysql web fine again. I am try tweak mysql for high process, low memory etc still same. But web html still fast not have issue. Old server mariadb 103...

I was just reading this here and it seems it's saying that AutoSSL is rendered unusable if we have this setting ON? Important: This action renders any cPanel & WHM features that depend on the standard HTTP ports partially or entirely unusable. These features include service subdomains, AutoSSL

Hi, after installing nginx as reverse proxy i noticed that some of website functions doesn't work anymore. In a website i have this piece of code : PHP: //// SHOP PAGES ONLY FOR LOGGED IN USERS function wdo_user_redirect() { if (! is_user_logged_in() && (is_woocommerc

A Ke elCare update is available. You must take one of the following actions to ensure the system is up-to-date: Patch the ke el (run “kcarectl --update” on the command line). Update the system (run “yum -y update” on the command line), and reboot the system. not sure where to post the Ubuntu stuff I...

How we can EASILY change logo with Jupiter? Our logo is not in SVG but we can embed the PNG to SVG. With base64 it is very large string and "whmapi1 update_customizations" seems to fail what ever we do. So has anyone found any easy way to change the logo if your logo is not pure SVG?

Hello Can I please have some help as follows, I'm a cPanel novice but can work my way around. My cPanel root folder on my host contains my main website files and folders along also with the folders for various subdomains. (There are no add on domains) I want organise the file structure from, to: Fro...