A high-performance JavaScript library providing AES-256, Fortuna PRNG, SRP authentication, and SHA-2 cryptographic functions for web applications.
Clipperz JavaScript Crypto Library is an open-source cryptographic toolkit that provides web developers with essential cryptographic functions including AES-256 encryption, Fortuna PRNG, SRP authentication, and SHA-2 hashing. It enables developers to implement secure, zero-knowledge web applications directly in the browser without relying on server-side cryptography. The library focuses on achieving maximum execution speed while maintaining modular design for easy integration into existing projects.
Web developers building secure browser-based applications that require client-side cryptography, particularly those implementing zero-knowledge architectures or needing to replace traditional authentication systems with more secure protocols.
Developers choose this library because it offers a carefully curated set of battle-tested cryptographic functions optimized for performance in JavaScript environments. Unlike generic cryptography packages, it's specifically designed for web applications and includes the SRP protocol—a key differentiator for secure authentication implementations.
The JavaScript Crypto Library provides web developers with an extensive and efficient set of cryptographic functions. The library aims to obtain maximum execution speed while preserving modularity and reusability. The library is released as open source under a BDS license.
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The library is designed for maximum execution speed in JavaScript, making cryptographic operations practical for real-world web applications, as stated in the philosophy.
Code is structured to be modular, allowing easy integration of specific functions like AES-256 or SRP into existing projects, enhancing flexibility.
Heavily used in Clipperz's online password manager, demonstrating reliability for zero-knowledge web applications and secure authentication.
Provides Secure Remote Password authentication, enabling password-based login without transmitting passwords, a key feature for enhancing security.
The README admits that elliptic curve cryptography (ECC) is slow and unfinished, limiting use cases requiring public-key operations.
Contributors must sign a Clipperz Contributor Agreement that assigns rights, which may hinder open-source collaboration and community growth.
Many functions lack parameters for key length and encoding options, reducing customization for advanced cryptographic needs.