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The RC4 cipher used in WEP is a:
Block cipher
Substitution cipher
Transposition cipher
Stream cipher
The most appropriate choice here is that RC4 is a stream cipher//edit -->// https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&uact=8&ved=2ahUKEwju8qD7-rzdAhWYxIMKHW3PAE0QFjACegQIAhAK&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FRC4&usg=AOvVaw2J5nnvOfyUIvtx7Y5yiogm edit: should not have 2 options that state stream cipher
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