Obfuscate

Verb

1. To make dark; overshadow
2. To deliberately make more confusing in order to conceal the truth.

   Before leaving the scene, the murderer set a fire to obfuscate any evidence of his or her identity.

3. (computing) To alter code while preserving its behavior but conceal its structure and intent.

   We need to obfuscate these classes before we ship the final release.