hasher/CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[1.0.0] - 2025-12-03

Added

Core Features

• Hash search functionality for MD5, SHA1, SHA256, SHA512, and Bcrypt
• Hash generation from plaintext input
• Automatic detection of hash types based on length and pattern
• Real-time hash generation with instant results
• Copy to clipboard functionality for all hash values
• Bcrypt verification support

Backend

• Elasticsearch integration with configurable endpoint
• Custom index mapping with 10 shards for horizontal scaling
• Automatic index creation on first use
• Auto-indexing of searched plaintext for future lookups
• RESTful API endpoints for search and health checks
• Lowercase analyzer for case-insensitive searches

Frontend

• Modern, responsive UI with gradient design
• Real-time search with loading states
• Visual feedback for all user actions
• Copy-to-clipboard with confirmation animations
• Error handling with user-friendly messages
• Mobile-responsive design
• Accessibility features

Bulk Indexing

• Command-line script for bulk hash indexing
• Configurable batch size for performance tuning
• Progress indicator with percentage completion
• Performance metrics (docs/sec)
• Error reporting and handling
• Support for large wordlist files

Documentation

• Comprehensive README with installation instructions
• API documentation with request/response examples
• Deployment guide for multiple platforms
• Contributing guidelines
• Testing guide with checklist
• License (MIT)
• Sample wordlist for testing

Developer Tools

• TypeScript for type safety
• ESLint configuration
• Environment variable support
• Health check endpoint for monitoring
• Detailed error logging

Technical Details

Dependencies

• Next.js 16.0.7
• React 19.2.0
• Elasticsearch Client 8.x
• Lucide React (icons)
• Tailwind CSS 4.x
• TypeScript 5.x

Project Structure

hasher/
├── app/                    # Next.js app directory
│   ├── api/               # API routes
│   ├── layout.tsx         # Root layout
│   └── page.tsx           # Main page
├── lib/                   # Utility libraries
│   ├── elasticsearch.ts   # ES client
│   └── hash.ts           # Hash utilities
├── scripts/              # CLI scripts
│   └── index-file.ts     # Bulk indexer
└── docs/                 # Documentation

Elasticsearch Index Schema

• Index name: hasher
• Shards: 10
• Replicas: 1
• Fields: plaintext, md5, sha1, sha256, sha512, created_at

Configuration

Environment Variables

• ELASTICSEARCH_NODE: Elasticsearch endpoint (default: http://localhost:9200)

Performance

• Bulk indexing: 1000-5000 docs/sec
• Search latency: < 50ms typical
• Horizontal scaling ready

Security

• Input validation on all endpoints
• Case-insensitive hash matching
• Safe NoSQL queries (no injection risks)
• Error message sanitization

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[Unreleased]

Planned Features

• Argon2 hash support
• Search history tracking
• Batch hash lookup
• Export results (CSV, JSON)
• API rate limiting
• Authentication/authorization
• Advanced search filters
• Hash strength analyzer
• Custom hash algorithms

Planned Improvements

• Add unit tests
• Add integration tests
• Implement caching layer
• Add Prometheus metrics
• Improve error messages
• Add more documentation
• Performance optimizations
• UI animations
• Dark mode toggle
• Internationalization (i18n)

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Version History

• 1.0.0 (2025-12-03) - Initial release

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Migration Guide

Not applicable for initial release.

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Support

For issues, feature requests, or questions, please open an issue on GitHub.