Elliptic Curve448-Goldilocks Java-based Library and Application

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Cryptographic Library & Application

Overview

This project comprises a cryptographic library and application implementing SHA-3 derived functions and elliptic curve cryptography. It adheres to NIST Special Publication 800-185 guidelines and utilizes the Ed448-Goldilocks elliptic curve as per NIST FIPS 186-5.

Features

• SHA-3 Implementation: Incorporates KMACXOF256 for hash computation and MAC generation.
• Elliptic Curve Cryptography: Uses Ed448-Goldilocks for digital signatures and asymmetric encryption.
• Digital Signatures: Implements Schnorr signatures for secure data authentication.
• Encryption & Decryption: Supports data file encryption and decryption using public and private keys.

File Structure

• src/text_files/: Contains essential text files like passphrase, keys, and encrypted/decrypted messages.

Getting Started

1. Download and open folder Ed448-master in chosen IDE.
2. Ensure necessary files are in src/text_files/.
3. Run the application with specified command line arguments (refer to user guide for details).
4. Navigate through main menu and submenus for various cryptographic operations.

Command Line Arguments

• Passphrase, message, public/private key paths, encrypted/decrypted message paths, and signature file paths.

Usage

• Generate elliptic key pairs, encrypt/decrypt files, sign/verify messages using command line and file inputs.

Dependencies

• Java-based environment.
• NIST compliant libraries for cryptographic functions.

Contributors

• Caroline El Jazmi
• Andy Comfort
• Brandon Morgan