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Documentation Core Tools Aes Crypto

AES Encryption/Decryption Tool

Overview

The AES (Advanced Encryption Standard) Encryption/Decryption Tool provides secure symmetric encryption and decryption capabilities. It supports multiple key sizes (128, 192, 256 bits) and encryption modes (CBC, GCM, CTR) to meet various security requirements.

Features

  • Multiple Key Sizes: Support for AES-128, AES-192, and AES-256
  • Encryption Modes: CBC, GCM, and CTR modes for different use cases
  • Flexible Input: Support for text input and various key formats
  • Key Management: Generate secure random keys and initialization vectors
  • Output Formats: Choose between hexadecimal and Base64 output
  • GCM Authentication: Built-in authentication with GCM mode
  • Real-time Processing: Instant encryption/decryption as you type
  • History Tracking: Keep track of recent operations

Encryption Modes

CBC (Cipher Block Chaining)

  • Most commonly used block cipher mode
  • Requires an Initialization Vector (IV)
  • Provides good security for most applications
  • Sequential processing

GCM (Galois/Counter Mode)

  • Modern authenticated encryption mode
  • Provides both encryption and authentication
  • Uses a nonce instead of IV
  • Supports additional authenticated data (AAD)
  • Recommended for new applications

CTR (Counter Mode)

  • Converts block cipher into stream cipher
  • Supports parallel processing
  • Good performance characteristics
  • Requires proper nonce/counter management

Security Features

  • Industry Standard: Implements NIST-approved AES algorithm
  • Key Security: Secure key generation and handling
  • IV/Nonce Management: Proper initialization vector generation
  • Authentication: GCM mode provides built-in authentication
  • Security Recommendations: Built-in security best practices guidance

Use Cases

  • Data Protection: Encrypt sensitive data for storage or transmission
  • File Encryption: Secure files and documents
  • Communication Security: Secure messaging and data exchange
  • Database Encryption: Encrypt sensitive database fields
  • Backup Security: Secure backup files and archives

Best Practices

  • Use AES-256 with GCM mode for maximum security
  • Generate unique IVs/nonces for each encryption operation
  • Use cryptographically secure random number generators for keys
  • Properly manage and store encryption keys
  • Implement proper key rotation policies
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