Massive Attack | Attack on Pearl Harbor | attack on Pearl Harbor | Star Wars Episode II: Attack of the Clones | attack | The Chosen | suicide attack | 2012 Benghazi attack | Joint Direct Attack Munition | Jack-Jack Attack | Chosen | Blood II: The Chosen | Attack Attack! | Suicide attack | Milltown Cemetery attack | Godzilla, Mothra and King Ghidorah: Giant Monsters All-Out Attack | Attack the Block | Attack on Sydney Harbour | Attack of the Show! | Attack of the Killer Tomatoes | 2007 Glasgow International Airport attack | Young Heart Attack | This Heart Attack | The Chosen One (2010 film) | The Chosen One | Standoff Land Attack Missile | Sarin gas attack on the Tokyo subway | Oktoberfest terror attack | Massive Attack's | Korean Attack Submarine program |
Variants of this definition define indistinguishability under chosen ciphertext attack and adaptive chosen ciphertext attack (IND-CCA, IND-CCA2).