bcrypt() is a sophisticated and secure hash algorithm designed by The OpenBSD project for hashing passwords. The bcrypt Ruby gem provides a simple wrapper for safely handling passwords.

Generates attr_accessors that encrypt and decrypt attributes transparently

Modern encryption for Ruby and Rails

The Networking and Cryptography (NaCl) library provides a high-level toolkit for building cryptographic systems and protocols

The scrypt key derivation function is designed to be far more secure against hardware brute-force attacks than alternative functions such as PBKDF2 or bcrypt.

Strongbox provides Public Key Encryption for ActiveRecord. By using a public key sensitive information can be encrypted and stored automatically. Once stored a password is required to access the information. dependencies are specified in standard Ruby syntax.

Transparent ActiveRecord encryption

Encrypt ActiveRecord and Mongoid attributes, files and passwords in configuration files.

Misuse-resistant authenticated symmetric encryption

Argon2 FFI binding

Argon2 key derivation for Ruby

A library for storing encrypted data in Mongo

Dead-simple string encryption/decryption syntax

This module allows Ruby programs to interface with "RSA Security Inc. PKCS #11 Cryptographic Token Interface (Cryptoki)".

Rails plugin to transparently encrypt attributes

Sentry provides painless encryption services with a wrapper around some OpenSSL classes

Ruby wrapper for liboqs from Open Quantum Safe library. This version included platform binary of Linux, MacOS and Windows based on git commit b803b54179c1cea9091d9331cc8085fc235e1be4