A Python package for EMV cryptography in payment systems

A secure IndexedDB store with built-in encryption

Lightweight cryptographic primitives for Python with zero dependencies. Password hashing, encryption, tokens, UUIDs, and secure storage for rapid prototyping and internal tools.

CLI for the recovery of OMNI funds (any OP_RETURN inputs) out of a Bitcoin Multisig Wallet

A Java library that can be used to create mnemonics for the Stellar Network (e.g. for your Android app)

a high-level async cryptographic anonymity library to scale, simplify, & automate privacy best practices for secure data & identity processing, communication, & storage.

A simple password hashing & compare golang package

Implementation of the single-step key derivation function (KDF) as described in NIST Special Publication 800-56C Rev1 supporting messages digest and HMAC.

Key derivation function for defense against brute force attacks for defense against brute force attacks

A proof of concept for how you can turn a duplex-style AEAD scheme (e.g., AEGIS) into a memory-hard password-based KDF.

Fast, cross-platform, RFC-compliant implementation of HMAC-based Extract-and-Expand Key Derivation Function (HKDF) in .NET Standard

cryptio is a modern Go library for secure password-based encryption and decryption, featuring Argon2id key derivation and AES-GCM. Choose your desired security level—Standard, Medium, or High—for optimal protection and performance balance.

Encryption adapter for https://github.com/vladimiry/fs-json-store

A password manager that utilizes PostgreSQL, AES Encryption, and PBKDF2 to create a simple and secure password storage and retrieval system.

Hierarchical secret derivation with Blake2b and RNGs

Key diversification for Ultralight C tags

Tools for collecting entropy and deriving keys

Tool for deriving various types of keys from known symmetric secrets.

Cryptographic Key Stretching Functions in Go.