Audio Steganography
  Three main ways to encode
  Least significant bit
  Phase coding
  Replace phase of segment with reference phase
  Spread Spectrum encoding
  Encode the message across all frequencies
  Observations:
  Message is likely to be lost if resampled.
  Message is likely to be lost if converted to/from digital form.
  MP3 and WAV files are most widely supported.

Copyright 2003, Bri Hatch of Onsight, Inc.

Presented at SecureWorld Expo, 2003.

Presentation created using vim and MagicPoint.