C

cryptography

CryptoLyzer is a fast, flexible, and comprehensive server cryptographic protocol (TLS, SSL, SSH, DNSSEC) and related setting (HTTP headers, DNS records) analyzer and fingerprint (JA3, HASSH tag) generator with Python API and CLI.

⚡ Essential JavaScript libraries/utilities for Node.js and the web

Leonardus is an open source project. It is a minimalist, stack-based programming system designed as a flexible framework for implementing and exploring algorithms. The syntax and semantics of its scripting language, LeoScript, are inspired by PostScript and Forth. It is extended with a prototype-based, object-oriented paradigm, has seamless integration into JupyterLab and Docker, and provides a concise and expressive environment for learning and experimentation.

The project name is a nod to Leonardus Pisanus, who was named and became known as Fibonacci.

Consult the project's GitLab Pages for documentation.

A no_std-compatible library for ergonomic byte array operations with optional security hardening. Supports multiple input formats (hex, binary, UTF-8), bitwise operations, and comprehensive type conversions with minimal dependencies.

Advanced ECC (secp256k1) toolkit featuring public key cloning, homomorphic property analysis, and discrete logarithm reduction algorithms (Fission/Displacement) for key recovery and cryptographic research.

High-performance cryptographic suite featuring massive parallel execution of Secp256k1, SHA-256, and RIPEMD-160 using NVIDIA CUDA (GPU) and AVX2 (CPU). Includes a standalone CashAddr library.

scared is a side-channel analysis framework.

A package that handles key pair generation and encryption / decryption of secrets using keys

A sponge-based secure hash function that uses AES-256 as its internal PRF.

Cryptographic protocol and security-related protocol piece parser.

Free repository of cryptography-related data.

Cryptopals challenges https://cryptopals.com/

A powerful utility to hunt down Bitcoin private keys from deleted wallet.dat files or damaged hard drives. If you accidentally deleted your Bitcoin Core wallet or formatted your disk, this tool can help. It bypasses the file system and scans the raw data directly, looking for the unique "fingerprint" (ASN.1 signature) of Bitcoin private keys to recover them from the digital wreckage.

This script connects to a locally running full node core wallet, scans a specified range of blocks,and extracts public keys found in transactions into an archive.Used for public key research projects such as RCKangaroo,keyhunt,BitCrack,bsgsd,keyhuntcuda,etc. for BTC,ETH,BCH,LTC,DOGE,DASH,ZEC,etc.

Bitcoin Mini Key Hunter is a tool that focuses on searching for 22-digit private keys starting with S and performing cracking drills. It uses the powerful GPU parallel computing capabilities of CUDA technology, similar to research tools such as brainflayer,keyhunt,BitCrack, ecloop,keyhunt cuda,etc.

D(HE)ater is a proof of concept implementation of the D(HE)at attack (CVE-2002-20001) through which denial-of-service can be performed by enforcing the Diffie-Hellman key exchange.

For more information visit https://dheatattack.com

A minimalist implementation of AES algorithms in C

CLI tool for compressing and XOR encoding file.

After optimization, version 3080 is equivalent to version 4090. I fixed address matching errors and private key conversion errors, modified the random generator, added puzzles suitable for specific regions, and more. It is commonly used in puzzle games, Brainflayer, Keyhunt, BitCrack, VanitySearch, etc.

estraces is a Python library to manipulate side-channel trace sets. It aims at giving a clear and uniform API to handle traces samples and metadata for various persistency and file formats.