Johann Valenteros

Overview

This project will showcase my skills in front-end development, modern responsive design, and modern CSS techniques. Features include smooth transition animations, a mobile-friendly approach, and future accessibility considerations.

Features

• Interactive UI components with subtle animations
• Dark/light theme switching with persistent preferences
• Responsive layout optimized for all devices
• Performance-focused implementation with minimal dependencies

Implementation

Built with vanilla JavaScript and CSS Grid for layout. Implemented modern web APIs and accessibility best practices. The codebase also follows a component-based architecture for maintainability.

Overview

A simple application written in Bash script that evaluates the strength of a given password based on various criteria.

This collaborative project demonstrates our proficiency in Bash scripting and understanding of basic security principles. The bash script will analyze passwords for length, uses of different characters, and common patterns to provide a strength rating.

Features

• The application will check the password length
• It will verify the use of uppercase, lowercase, numbers, and special characters
• Provides a strength score and recommendation
• Implements best practices for secure password handling

My Contributions

• Implemented the regex check patterns
• Collaborated on security best practices implementation

Implementation

Built with Bash for terminal and state management.

Overview

A comprehensive Python application that provides secure file encryption and decryption capabilities using industry-standard cryptographic algorithms. This project demonstrates my understanding of cryptographic principles and secure programming practices.

Features

• Support for multiple encryption algorithms (AES, RSA)
• Secure key generation and management
• File integrity verification using checksums
• Command-line interface for easy integration
• Detailed logging and error handling

Technical Highlights

• Implemented using Python's cryptography library
• Follows best practices for secure data handling
• Includes comprehensive unit tests
• Designed with modularity for easy extension

Implementation

Built with Python 3.x and leveraging modern cryptographic libraries. The application follows a modular architecture with clear separation of concerns between the cryptographic operations, file handling, and user interface components.

Overview

A responsive web application inspired by Discord's UI styling that generates secure, random passwords based on user-defined criteria. This project showcases my front-end development skills and understanding of web security principles.

Features

• Customizable password length (8-128 characters)
• Options for including uppercase letters, lowercase letters, numbers, and special characters
• Password strength indicator with visual feedback
• One-click copy to clipboard functionality
• Password history with the ability to recover previously generated passwords
• Mobile-responsive design for use on any device

Technical Highlights

• Built with vanilla JavaScript for optimal performance
• Uses the Web Crypto API for secure random number generation
• Implements modern CSS features including Grid and Flexbox

Implementation

Developed using HTML5, CSS3, and JavaScript with a focus on clean, maintainable code. The application uses client-side processing to ensure that passwords are never transmitted over the network, enhancing security.