In GCM, we define S as S = GHASH(A||0v||C||0u||||). What is u 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||0v||C||0u||||). What is u defined as? – len(A) b) 64 ceil – len(C) c) 128 ceil – len(A) d) 128 ceil – len(C) Correct Answer len(A)
u = 128 ceil – len(C).
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Feb 20, 2025