Cryptography MCQ set number 00540

1. In GCM, we define S as S = GHASH(A||0^v||C||0^u||[len(A)]||[len(C)]). What is v defined as? a) 64 ceil[len (A)/128] – len (A) b) 64 ceil[len (C)/128] – len (C) c) 128 ceil[len (A)/128] – len (A) d) 128 ceil[len (C)/128] – len (C) AnswerAnswer: c [Reason:] v = 128 ceil[len (A)/128] – len (A). 2….

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