Encryption
We track 17 posts about Encryption from 12 engineering blogs. Most active: Elastic, Jeremy Kun, Jake Trent. Latest post: Oct 1, 2026.
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Cryptography Essentials for Node.js Developers: Hashing, Encryption, and Signing Done Right (opens on the source site)
null Continue reading Cryptography Essentials for Node.js Developers: Hashing, Encryption, and Signing Done Right on SitePoint.
Is your domain using post-quantum encryption? Now you can see for yourself (opens on the source site)
Cloudflare has added visibility into post-quantum (PQ) encryption in TLS 1.3 directly into HTTP Analytics, Log Explorer, and Logpush. Learn how to make sure your domain is protected with PQ encryption.
CKKS — Encryption and Decryption (opens on the source site)
Table of Contents This is part of a tutorial series on the CKKS homomorphic encryption scheme. In the last article, we covered some groundwork about polynomials and the CKKS encoding method. This article covers the encryption and decryption routines. Notably, if you already know about CKKS, we will deviate from a usual treatment for explanatory purposes. In particular, we will first define CKKS encryption, decryption, and basic operations without using the residue number system (RNS).
Updates on HEIR, the homomorphic encryption compiler project (opens on the source site)
On 2026-08-14 I published an article on the Google Security blog with an update on HEIR, our homomorphic encryption (HE) compiler. This is a companion article, in which I have no limits on word count or jargon, and I can feel free to be honest. So strap in. Assuming you won’t read the linked corporate blog post, HEIR is a compiler that converts an input program to a program that operates directly on encrypted data.
How We’re Building Scam Alert on WhatsApp With End-to-End Encryption and Verifiability Guarantees (opens on the source site)
Facebook ·
WhatsApp is committed to helping people stay safe while protecting the privacy of their messages. As scam tactics evolve — from impersonation to social engineering to AI-generated lures — we’re always evolving as well, so that our protections stay ahead of scammers while protecting people’s personal messages with end-to-end encryption. Today, we’re sharing an early [...] Read More... The post How We’re Building Scam Alert on WhatsApp With End-to-End Encryption and Verifiability Guarantees appeared first on Engineering at Meta.
WhatsApp Encryption, a Lawsuit, and a Lot of Noise (opens on the source site)
It’s not every day that we see mainstream media get excited about encryption apps! For that reason, the past several days have been fascinating, since we’ve been given not one but several unusual stories about the encryption used in WhatsApp. Or more accurately, if you read the story, a pretty wild allegation that the widely-used … Continue reading WhatsApp Encryption, a Lawsuit, and a Lot of Noise →
Bicyclic Matrix-Matrix Multiplication in Fully Homomorphic Encryption (opens on the source site)
In an earlier article, I covered the basic technique for performing matrix-vector multiplication in fully homomorphic encryption (FHE), known as the Halevi-Shoup diagonal method. This article covers a more recent method for matrix-matrix multiplication known as the bicyclic method. The code implementing this method is in the same GitHub repository as the previous article, and the bicyclic method is in a file called bicyclic.py. The previous article linked above covers the general concepts behind “FHE packing,” which I will assume as background knowledge for this article:
Getting Started With Queryable Encryption in the MongoDB C# Driver (opens on the source site)
With the release of MongoDB 7.0 in August 2023, we introduced a feature called Queryable Encryption, the first of its kind. With queryable encryption, your data is encrypted, even at rest, with the se... The post Getting Started With Queryable Encryption in the MongoDB C# Driver appeared first on DEV.
Fully Homomorphic Encryption and the Public (opens on the source site)
In this living document, I will document reactions to uses of homomorphic encryption by members of the public. By “member of the public,” I mean people who may be technical, but are not directly involved in the development or deployment of homomorphic encryption systems. This includes journalists, bloggers, aggregator comment threads, and social media posts. My main goal is to understand how the public perceives the risks and benefits of using homomorphic encryption.
Encryption at rest in Elastic Cloud: Bring your own key with Google Cloud (opens on the source site)
Elastic ·
Follow the step-by-step process of configuring encryption at rest in Elastic Cloud using Google Cloud Key Management Service.
Securing Your Email Sending With Python: Authentication and Encryption (opens on the source site)
Email encryption and authentication are modern security techniques that you can use to protect your emails and their content from unauthorized access. Everyone, from individuals to business owners, uses emails for official communication, which may contain sensitive information. Therefore, securing emails is important, especially when cyberattacks like phishing, smishing, etc.
Encryption at rest in Elastic Cloud: Bring your own key with Azure Key Vault (opens on the source site)
Elastic ·
Follow this step-by-step process to implement encryption at rest with Azure Key Vault keys and Elastic Cloud deployments to create a secure and compliant environment for your sensitive data.
Encryption at rest in Elastic Cloud: Bring your own key with AWS KMS (opens on the source site)
Elastic ·
Follow the step-by-step process of configuring encryption at rest in Elastic Cloud using AWS Key Management Service (KMS).
Encryption at rest in Elastic Cloud: A strategic imperative for enterprise security (opens on the source site)
Elastic ·
Encryption at rest is crucial for data security in cloud-based environments. It protects sensitive data stored within SaaS applications, ensuring confidentiality and compliance. Elastic Cloud helps customer-managed keys for better control and trust.
Analyzing a simple encryption scheme using GitHub SSH keys (opens on the source site)
Latacora ·
(This is an introductory level analysis of a scheme involving RSA. If you’re already comfortable with Bleichenbacher oracles you should skip it.) Someone pointed me at the following suggestion on the Internet for encrypting secrets to people based on their GitHub SSH keys. I like the idea of making it easier for people to leverage key material and tools they already have. The encryption instructions are: echo "my secret" > message.txt curl -q "https://github.com/${USER}.keys" \ | head -n 1 \ > recipient.pub ssh-keygen -e -m pkcs8 -f recipient.pub > recipient.pem openssl rsautl \ -encrypt \…
Trackers leaking bank account data (opens on the source site)
A Finnish online bank used to include a US-based third-party analytics and tracking script in all of its pages. Ospi first wrote about it (in Finnish) in February 2015, and this caused a bit of a fuss. The bank responded to users' worries by claiming that all information is collected anonymously: But is it true? As Ospi notes, a plethora of information is sent along the HTTP request for the tracker script. This includes, of course, the IP address of the user; but also the full URL the user is browsing. The bank's URLs reveal quite a bit about what the user is doing; for instance, a user…
AES Encryption Odyssey in Java with Bouncy Castle (opens on the source site)
Recently, I've been working on a project where I've tried to use AES encryption for the first time. I didn't have to implement it myself, thank goodness, but I still ran into a few snags. Perhaps you can avoid my pitfalls and rise to new greatness on the peaks of glory and fortitude! This article title sounds like a laundry detergent. Why Java We do a fair amount of our development on MarkLogic lately. Our app right now happens to be heaped in XQuery. When we learned that we had to interface with an external system passing AES-encrypted payloads, I did a quick looksy into what was needed for…
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