Reference Implementation: SteganRTP

• Design Goals
  • Achieve Steganography
  • Full-Duplex Communications Channel
  • Compensate for Unreliable Transport
  • Identical User Experience Regardless of Mode of Operation
  • Multi-type Data Transfer
  
  
• Operational Architecture
  • Local Operation
  • Man-in-the-Middle Operation
  • Mixed Operation
  
  
• Application Flow
  • Initialization
    • SHA-1 Collision Irrelevance
  • RTP Session Identification
  • Hooking Packets
  • Reading Packets
  • Inbound Processing
  • Outbound Processing
  • Session Timeout
  
  
• Communication Protocol Specification
  • The cover medium: RTP Packet
  • Message Format
  • Message Types
    • Control Messages
    • Data Messages
  
  
• Functional Components
  • File Descriptor Lists
    • Inbound File Descriptors
    • Outbound File Descriptors
  • Message Handler
    • Administrative Tasks
    • Data Routing
  • Encryption System
    • Bit-pad Creation
    • Choose a Bit-pad Offset
    • XOR Loop
  • Embedding System
  • Extraction System
  • Outbound Data Polling System
  • Message Caching System
  • Shell Service
  
  
• Use
  • Command-line
    • Usage Output Overview
    • Command-line Arguments
    • Usage Examples
  • User Interface
    • Windows
    • Commands