C

cryptography

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

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

QUIC-native TLS 1.3 implementation in Zig. RFC 8446/9001 compliant with zero external dependencies.

Proof of Concept: transfer telegram messages from a relay server (actual go version) to a old Palm Pixi WebOS armv6 mobile phone (go version 1.11) with asymetric key pair.

scared is a side-channel analysis framework.

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.

A minimalist implementation of AES algorithms in C

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.

KeyKiller is the world's highest-performing CPU-based Satoshi password cracker. It leverages modern CPU instruction sets like AVX2 and AVX512 to achieve unparalleled computing performance. Deeply optimized for the operating system, it strikes a balance between speed and accuracy, making it the ultimate tool for password cracking.

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.

Mnemonic converter, can generate randomly, view seeds, private keys, public keys and addresses of derived paths, etc., base58 bech32 cashaddr sha256 sha512 sha3256 ripemd160 keccak256 secp256k1 pbkdf2 mnemonics pbkdf2 hmac sha512 and other implementations.

This C language tool converts Bitcoin private key or public key or public key hash 160, calculates various addresses, including P2PKH, P2SH, SegWit and other formats, and supports conversion between hexadecimal and WIF formats of private keys.

Lightweight python gpg bindings based on subprocess

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.

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

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.

Cryptographic protocol and security-related protocol piece parser.

Free repository of cryptography-related data.