Question
Let E be a secure (n + 1)-bit block cipher, and define the following 2n-bit domain function: Fk (mo||m1) = Ek (0||mo)||Ek (1||m). Show
Let E be a secure (n + 1)-bit block cipher, and define the following 2n-bit domain function: Fk (mo||m1) = Ek (0||mo)||Ek (1||m). Show that F is not a secure 2n-bit. MAC.
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Managerial Accounting
Authors: Stacey Whitecotton, Robert Libby, Fred Phillips
2nd edition
978-0078025518
