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Page 14: Audio Steganography

Page 14

  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
  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.