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emailtinc is a Virtual Private Network (VPN) daemon that uses tunnelling and encryption to create a secure private network between hosts on the Internet. tinc is Free Software and licensed under the GNU General Public License version 2 or later. Because the VPN appears to the IP level network code as a normal network device, there is no need to adapt any existing software. This allows VPN sites to share information with each other over the Internet without exposing any information to others.
The Mozilla CA certificate store in PEM format (around 200KB uncompressed):
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recover data from the Akira ransomware without paying the ransom.
PurrCrypt 
Fur-ociously Secure, Paw-sitively Adorable!
The purr-fect way to keep your secrets fur-ever safe, straight from the meow-th of your computer to your fur-ends' paws!
A fur-ociously secure encryption tool that encodes your secrets as adorable cat and dog sounds, using real elliptic curve cryptography with a playful disguise.
Delta Chat is a decentralized and secure messenger app.
Reliable instant messaging with multi-profile and multi-device support.
Easily send fully encrypted, secure notes or files with one click. Just create a note and share the link.
Simple, self-hostable filesharing application with builtin end-to-end encryption.
Secure, Lightweight Encrypted Notepad for Privacy.
SealNotes is an end-to-end encrypted web-based notepad that stores and manages your notes.
E2EE aware proxy daemon for matrix clients.
Pantalaimon is an end-to-end encryption aware Matrix reverse proxy daemon. Pantalaimon acts as a good man in the middle that handles the encryption for you.
Messages are transparently encrypted and decrypted for clients inside of pantalaimon.
Paste a password, confidential message, or private data.
Keep your sensitive information out of chat logs, emails, and more with encrypted secrets.
Hemmelig is a encrypted sharing platform that enables secure transmission of sensitive information. All encryption occurs client-side using TweetNaCl, ensuring your data remains encrypted before it reaches our servers. The platform supports both personal and organizational use cases, with features like IP restrictions, expiration controls, and optional password protection. Whether you're sharing credentials, sensitive messages, or confidential files, Hemmelig strives to ensure your data remains private and secure.
Privastead is a privacy-preserving home security camera solution that uses end-to-end encryption
Password protect static HTML.
StatiCrypt uses AES-256 with WebCrypto to encrypt your html string with your long password, in your browser (client side).
Lightweight modern Python library to add security headers (CSP, HSTS, etc.) to Django, Flask, FastAPI, and more. Secure defaults or fully customizable.
Self hosted, easy to install end to end encrypted storage drive.
Hoodik is a lightweight, secure, and self-hosted cloud storage solution. It's designed and built with Rust and Vue, focusing on end-to-end encryption that shields your data from prying eyes and hackers. Hoodik supports file uploading and downloading, making it easy for you to share files with other users. The simple and intuitive web interface makes file management a breeze. Thanks to Rust's focus on speed and performance, your data transfers will be lightning fast.
Your end-to-end encrypted backend.
Etebase makes it easy to build end-to-end encrypted applications by taking care of the encryption and its related challenges.
Think Firebase but encrypted in a way that only end-users can access their data.
gocryptfs uses file-based encryption that is implemented as a mountable FUSE filesystem. Each file in gocryptfs is stored one corresponding encrypted file on the hard disk. The screenshot below shows a mounted gocryptfs filesystem (left) and the encrypted files (right).
Just like nip.io or xip.io, traefik.me is a magic domain name that provides
wildcard DNS for any IP address.
Code signing and transparency for containers and binaries.
Signing OCI containers (and other artifacts) using Sigstore!
Cosign aims to make signatures invisible infrastructure.
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Real fucking shellcode encryptor & obfuscator tool.
Supernova is an open-source tool that empowers users to securely encrypt and/or obfuscate their raw shellcode.
open-source cryptographic APIs.
Welcome to the home of the Legion of the Bouncy Castle and its FIPS-certified open-source cryptographic APIs for Java and C#.