CryptoSwift is a growing collection of standard and secure cryptographic algorithms implemented in Swift

A native implementation of TLS in Javascript and tools to write crypto-based and network-heavy webapps

Practical Cryptography for Developers: Hashes, MAC, Key Derivation, DHKE, Symmetric and Asymmetric Ciphers, Public Key Cryptosystems, RSA, Elliptic Curves, ECC, secp256k1, ECDH, ECIES, Digital Signatures, ECDSA, EdDSA

Safely pass trusted data to untrusted environments and back.

A JavaScript/TypeScript implementation of the complete Secure Hash Standard (SHA) family (SHA-1, SHA-224/256/384/512, SHA3-224/256/384/512, SHAKE128/256, cSHAKE128/256, and KMAC128/256) with HMAC.

🔑 One Time Password (OTP) / 2FA for Node.js and Browser - Supports HOTP, TOTP and Google Authenticator

Single Packet Authorization > Port Knocking

Lightning fast hash functions using hand-tuned WebAssembly binaries

A simple, semantic and developer-friendly crypto package for golang

Open Source License Key Generation and Verification Tool written in Go

Audited & minimal JS implementation of hash functions, MACs and KDFs.

Fast and dependency-free cryptographic hashing library for node.js and browsers (supports MD5, SHA1, SHA256, SHA512, RIPEMD, HMAC)

Usable, easy and safe pure-Rust crypto

✅ .NET crypto done right. Professionally audited.

Portable C++ hashing library

编码转换、摘要(hash)、加解密（MD5、SHA1、SHA256、SHA3、SM3、HMAC、DES、3DES、AES、SM4）

"Zero-Knowledge" Proof Implementation with HMAC Communication in Python

HMAC authentication for Rails and HTTP Clients

Go JWT signing, verifying and validating

Guidance on implementing cryptography as a developer.