Encryption/Decryption Tools

rockwellshah/filekey

Offline, open-source web app for passkey-based file encryption and sharing. AES-256-GCM/HPKE, no cloud, no accounts; encrypt to recipients with…

signalapp/libsignal

Home to the Signal Protocol as well as other cryptographic primitives which make Signal possible.

eliavila10/project_bias

High-performance, bias-free cryptographic engine in Ada/SPARK leveraging native OS entropy pools.

emn4tor/seal

Peer-to-peer, end-to-end encrypted chat. No inbox. No account to recover. Nobody's listening — not even us.

reecdeep/hivev5_keystream_decryptor

bad stuffs by bad guys

dump-guy/powershell-tools

Collection of some easy of use tools - in powershell.

iilegacyyii/shellcrypt

A QoL tool to obfuscate shellcode. In the future will be able to chain encoding/encryption/compression methods.

prof.shafiei/abdal-lockbox

Local-first encrypted password vault for Android with Master Password access, Recovery Key support, Autofill integration, and portable encrypted…

microsoft/symcrypt-openssl

OpenSSL engine for use with SymCrypt cryptographic library

trustedsec/cs-remote-ops-bof

Remote operations commands implemented using Beacon Object Files

dr4k0nia/xorstringsnet

Easy XOR string encryption for NET based binaries

mattnotmax/cyberchef-recipes

A list of cyber-chef recipes and curated links

r-pufky/wireguard-initramfs

Use dropbear over wireguard.

fuzzysecurity/advsim.cryptography

Simple and sane cryptographic wrapper library.

threatlabz/tools

Ransomware decryption and script deobfuscation utilities from a threat intelligence team, designed for incident responders and malware analysts.