Open-source alternatives to Exgpg

s2n is a C-based security library and TLS protocol implementation that serves as a secure network transport layer. It provides a modular cryptographic backend interface to encrypt data streams, manage handshakes, and handle mutual authentication between peers. The project focuses on post-quantum cryptography, integrating quantum-resistant key exchange and digital signatures to protect connections against future computing threats. It distinguishes itself through security hardening measures, such as memory-locked secret storage to prevent keys from being swapped to disk and timing-attack mitiga

Functions for calculating Cyclic Redundancy Checks (CRC) values for the Node.js and front-end.

crypto-js is a JavaScript cryptography library providing a collection of standard cryptographic algorithms and data transformation tools. It functions as a symmetric encryption toolset, a cryptographic hash implementation, and a password derivation tool for the JavaScript environment. The library enables the protection of sensitive data through symmetric encryption and the production of fixed-size data digests to verify integrity. It includes utilities for converting user passwords into secure cryptographic keys and a data format converter for translating information between Base64, Hex, and

sjcl is a JavaScript cryptography library providing a collection of primitives for encryption, hashing, and encoding within a web browser. It functions as an AES symmetric encryption tool, a cryptographic hashing library, and a Base32 data encoder. The project provides implementations for the Advanced Encryption Standard to secure data through symmetric key encryption and decryption. It also enables the generation of fixed-length data fingerprints to verify information integrity and authenticity. The library covers a broader range of security capabilities, including client-side data hashing,

Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.

This library provides the functionality of PBKDF2 with the ability to use any supported hashing algorithm returned from crypto.getHashes()

Node style SHA on pure JavaScript.

xxHash is a high-performance, non-cryptographic hash library designed for rapid checksum generation and data integrity verification. It functions as an incremental hashing engine, allowing for the processing of large or streaming data inputs by maintaining a persistent internal state across sequential chunks. The library is engineered as a computational framework that maximizes throughput by utilizing wide CPU registers and branchless instruction pipelining. It achieves high-speed performance by aligning data access with CPU cache lines and employing multi-stage mixing functions that ensure c

Apache milagro (Incubating)

bcrypt.js is a portable JavaScript implementation of the bcrypt algorithm used for securely hashing and verifying user passwords. It functions as a credential security utility that protects stored passwords against brute-force attacks through the use of salts and configurable work factors. The library is designed as a pure JavaScript cryptographic module, allowing it to run in any JavaScript environment, including both server-side Node.js and client-side web browsers, without requiring native system binaries or C++ bindings. It is a zero-dependency standalone module to minimize security risks

🔑 Paseto.NET, a Paseto (Platform-Agnostic Security Tokens) implementation for .NET

Stream encryption & decryption with libsodium and protobuf

Advanced crypto library for the Go language

Port of Google's Keyczar cryptography library to Go

Password hashing specification for the Elixir programming language

An SSH client library for Common Lisp (Built on libssh2)

Cryptol: The Language of Cryptography

A mirror of the nettle repository

Just a bike-shed.

Haskell bindings to Colin Percival's scrypt implementation.

Libsodium is a portable, C-based cryptographic library that provides a collection of modern primitives for encryption, decryption, digital signatures, password hashing, and secure key exchange. It is designed to facilitate secure communication and data integrity across diverse hardware architectures and operating systems. The library distinguishes itself by utilizing constant-time primitive execution to prevent side-channel attacks and employing memory-hard algorithms to increase the difficulty of brute-force password attacks. It abstracts complex mathematical operations into simplified inter

Port of the OpenBSD bcryptpbkdf function to pure Javascript. npm-ified version of Devi Mandiri's port (https://github.com/devi/tmp/blob/master/js/bcryptpbkdf.js), with some minor performance improvements. The code is copied verbatim (and un-styled) from Devi's work.

国密算法sm2、sm3和sm4的js实现。

🔑 NaCl.Core, a cryptography library for .NET