Adversary

From Wikipedia, the free encyclopedia

Adversary may refer to:

In computer science:

• Adversary (cryptography), malicious entity in cryptography whose aim is to prevent the users of the cryptosystem from achieving their goal.
• Adversary (online algorithm), the adversary model is used in online algorithms in order to show competitiveness of randomized algorithms.

In fiction:

• Adversary (comics), villain from the Marvel comics universe
• The Adversary, the main villain in the Fables comic book series

In music:

• Ad·ver·sary, Industrial band from Ottawa, Canada
• The Adversary (album), solo album by Ihsahn of influential Norwegian black metal band Emperor
• The Adversary (webzine), webzine specializing in extreme metal chaos - www.theadversary.org

In law:

• Adversarial system, a system of law commonly used in common-law countries
• Adversary proceeding, proceeding used in bankruptcy processes

In other fields:

• "The Adversary" (DS9 episode), the season finale

of Star Trek: Deep Space Nine's third season

• A concept in Christianity of an entity similar to that of the antichrist.