In GCM, we define S as S = GHASH(A||0^v||C||0^u||||). What is v defined as? – len (A) b) 64 ceil – len (C) c) 128 ceil – len (A) d) 128 ceil – len (C)

In GCM, we define S as S = GHASH(A||0^v||C||0^u||||). What is v defined as? – len (A) b) 64 ceil – len (C) c) 128 ceil – len (A) d) 128 ceil – len (C) Correct Answer len(A)

v = 128 ceil – len (A).

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