C

cryptography

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

Pure Python cryptocurrency address generation and cryptographic utilities.

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.

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.

🚀 Warum ich Stego-Lab entwickelt habe:

• Private Archivierung: Ich bette meine sensiblen Dokumente einfach unsichtbar in ganz normale Urlaubsfotos ein. • Urheberrechtsschutz: Als Content Creator nutze ich unsichtbare Signaturen, um meine Werke zu schützen, ohne das Design durch Wasserzeichen zu stören. • Fotografie & Social Media: Ich bereinige meine EXIF-Daten und entferne GPS-Koordinaten, bevor ich Bilder teile, um meinen Standort privat zu halten. • Journalismus & Beweissicherung: Sensibles Material kann ich hochgradig verschlüsselt direkt in Bilddateien verstecken. • Effizienz durch Batch-Modus: Wenn ich hunderte Bilder habe, setze ich Wasserzeichen oder Copyright-Infos für die ganze Sammlung in einem Rutsch.

🛡️ Sicherheit, der du vertrauen kannst:

Deine Daten bleiben auch wirklich deine Daten:

• 100% Lokal: Die App arbeitet vollständig offline. Es gibt keine Cloud, keine externen Server und keinen Netzwerkzugriff. • Echte Verschlüsselung: Optional schütze ich eingebettete Inhalte mit AES-256-CBC – ohne das richtige Passwort ist eine Extraktion rechnerisch ausgeschlossen. • Kein Abo: Alle Profi-Funktionen sind als fairer Einmalkauf verfügbar. Egal ob am Mac im Büro oder unterwegs auf dem iPhone – Stego-Lab bietet dir auf allen Plattformen den gleichen Funktionsumfang.

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GPU secp256k1 toolkit on a single card: brute-force search, Pollard kangaroo for exposed pubkeys, and BIP39 seed recovery. One CUDA binary, one verified math core.

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

This is a python based encrypter and decrypter tool. Build for security.

scared is a side-channel analysis framework.

JetstreamDB is a universal filesystem, cache, memory, database. It is a component to build into solutions for management consulting customers. It has been running in production since April 2023. The logo was inspired by the tea clipper. It intends to be a great data store without AI like tea clippers took the seas before ironclads.

It is an open-source component, but we offer paid services with audit, system security reviews, benchmarking, and warranty. Jetstreamdb is available up to 6 TB low latency RAM with optional extra 50 TB SSD configurations for about $150/hr. https://calendly.com/hq-schmied/30min

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.

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.

Lightweight python gpg bindings based on subprocess

A comprehensive C/C++ toolkit for cryptocurrency security. Features include "God Wallet" (CSPRNG key generation), Bitcoin wallet.dat hash extraction, educational brain wallets, and vulnerability PoCs (Trust Wallet PRNG).

Cryptopals challenges https://cryptopals.com/

A python3 pip-installable package wrapping a C implementation of NTRUEncrypt

Using BLAKE in keyed hashing mode to sign and verify data.