Example: 8-bit Audio Embedding

• Let’s assume an 8-bit cover-audio file has the following 8 bytes of data in it:

• • 0xb4, 0xe5, 0x8b, 0xac, 0xd1, 0x97, 0x15, 0x68

• In binary:

• • 10110100-11100101-10001011-10101100
  • 11010001-10010111-00010101-01101000

• We wanted to hide the byte value ‘214’ (11010110), we replace the least significant bit from each byte to hide our message byte:

• • 10110101-11100101-10001010-10101101
  • 11010000-10010111-00010101-01101000

• The modifications result in the following:

• • Original: 0xb4, 0xe5, 0x8b, 0xac, 0xd1, 0x97, 0x15, 0x68
  • Modified: 0xb5, 0xe5, 0x8a, 0xad, 0xd0, 0x97, 0x15, 0x68