# decrypt

Published articles for decrypt.

This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles.

## Key Switching in LWE

DevFeed: [Key Switching in LWE](<https://devfeed.tech/articles/key-switching-in-lwe-40456.md>)

Original publisher: [Read original article](<https://www.jeremykun.com/2022/08/29/key-switching-in-lwe/>)

Published: 2022-08-29T08:00:00Z

Content type: tutorial

Language: en

Sources: [Jeremy Kun](<https://devfeed.tech/sources/jeremy-kun.md>)

Topics: [Encryption](<https://devfeed.tech/topics/encryption.md>), [Cryptography](<https://devfeed.tech/topics/cryptography.md>), [scheme](<https://devfeed.tech/topics/scheme.md>)

Tags: [cryptography](<https://devfeed.tech/tags/cryptography.md>), [decrypt](<https://devfeed.tech/tags/decrypt.md>), [encryption](<https://devfeed.tech/tags/encryption.md>), [gadget-decomposition](<https://devfeed.tech/tags/gadget-decomposition.md>), [gaussian](<https://devfeed.tech/tags/gaussian.md>), [homomorphic-encryption](<https://devfeed.tech/tags/homomorphic-encryption.md>), [learning-with-errors](<https://devfeed.tech/tags/learning-with-errors.md>), [mathematics](<https://devfeed.tech/tags/mathematics.md>), [modulus-switching](<https://devfeed.tech/tags/modulus-switching.md>), [real-analysis](<https://devfeed.tech/tags/real-analysis.md>), [secret](<https://devfeed.tech/tags/secret.md>)

### AI overview

This tutorial explains key switching in the LWE encryption scheme: transforming a ciphertext encrypted under one secret key into a ciphertext under another without knowing either key. It introduces the key-switching key, shows why the naïve approach causes excessive error growth, and explains how gadget decomposition reduces that error.

### Source excerpt

Last time we covered an operation in the LWE encryption scheme called modulus switching, which allows one to switch from one modulus to another, at the cost of introducing a small amount of extra noise, roughly $\sqrt{n}$, where $n$ is the dimension of the LWE ciphertext. This time we'll cover a more sophisticated operation called key switching, which allows one to switch an LWE ciphertext from being encrypted under one secret key to another, without ever knowing either secret key.

## Gookies : A Chrome cookie dumper

DevFeed: [Gookies : A Chrome cookie dumper](<https://devfeed.tech/articles/gookies-a-chrome-cookie-dumper-32626.md>)

Original publisher: [Read original article](<https://ethicalchaos.dev/2020/02/21/gookies-a-chrome-cookie-dumper/>)

Author: CCob

Published: 2020-02-21T17:56:12Z

Content type: article

Language: en

Sources: [Ethical Chaos](<https://devfeed.tech/sources/ethical-chaos.md>)

Topics: [Chrome](<https://devfeed.tech/topics/chrome.md>), [Encryption](<https://devfeed.tech/topics/encryption.md>), [Go Language](<https://devfeed.tech/topics/go-language.md>), [JSON](<https://devfeed.tech/topics/json.md>), [cURL](<https://devfeed.tech/topics/curl.md>), [Windows](<https://devfeed.tech/topics/windows.md>), [Command-line interface](<https://devfeed.tech/topics/cli.md>), [GitHub](<https://devfeed.tech/topics/github.md>)

Tags: [browsers](<https://devfeed.tech/tags/browsers.md>), [chrome](<https://devfeed.tech/tags/chrome.md>), [command-line](<https://devfeed.tech/tags/command-line.md>), [cookies](<https://devfeed.tech/tags/cookies.md>), [curl](<https://devfeed.tech/tags/curl.md>), [decrypt](<https://devfeed.tech/tags/decrypt.md>), [dump](<https://devfeed.tech/tags/dump.md>), [encryption](<https://devfeed.tech/tags/encryption.md>), [github](<https://devfeed.tech/tags/github.md>), [go](<https://devfeed.tech/tags/go.md>), [golang](<https://devfeed.tech/tags/golang.md>), [json](<https://devfeed.tech/tags/json.md>), [windows](<https://devfeed.tech/tags/windows.md>)

### AI overview

The article introduces Gookies, a Go-based tool that decrypts and dumps Chrome cookies. It supports multiple Chrome profiles, domain filtering, JSON output for cookie-manager import, and canonicalized cookie headers for command-line tools such as curl. The article states that Chrome 80 and later use a different cookie encryption scheme from version 79 and earlier, and that the tool currently supports Windows.

### Source excerpt

A Chrome cookie decryptor and dumping tool The post Gookies : A Chrome cookie dumper appeared first on Ethical Chaos.

## How GPG works: Encrypt

DevFeed: [How GPG works: Encrypt](<https://devfeed.tech/articles/how-gpg-works-encrypt-35415.md>)

Original publisher: [Read original article](<https://darkcoding.net/software/how-gpg-works-encrypt/>)

Author: Graham King

Published: 2013-07-30T21:02:43Z

Content type: tutorial

Language: en

Sources: [Graham King](<https://devfeed.tech/sources/graham-king.md>)

Topics: [Encryption](<https://devfeed.tech/topics/encryption.md>), [Cryptography](<https://devfeed.tech/topics/cryptography.md>), [public key](<https://devfeed.tech/topics/public-key.md>), [private key](<https://devfeed.tech/topics/private-key.md>), [Command-line interface](<https://devfeed.tech/topics/cli.md>)

Tags: [command-line](<https://devfeed.tech/tags/command-line.md>), [cryptography](<https://devfeed.tech/tags/cryptography.md>), [decrypt](<https://devfeed.tech/tags/decrypt.md>), [encryption](<https://devfeed.tech/tags/encryption.md>), [file](<https://devfeed.tech/tags/file.md>), [guide](<https://devfeed.tech/tags/guide.md>), [private-key](<https://devfeed.tech/tags/private-key.md>), [public-key](<https://devfeed.tech/tags/public-key.md>), [rsa](<https://devfeed.tech/tags/rsa.md>), [signing](<https://devfeed.tech/tags/signing.md>), [software](<https://devfeed.tech/tags/software.md>)

### AI overview

A straightforward guide to how GPG encrypts messages: it generates a random session key, encrypts the file with a symmetric cipher, and encrypts the session key with each recipient's public key. It also explains that the passphrase protects the private key rather than encrypting the message itself.

### Source excerpt

Demystifying GPG encryption: A straightforward guide to the process.