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Graphics Interchange Format  |  1996-04-02  |  45.1 KB  |  286x356  |  8-bit (102 colors)
   ocr: 1 m Tabulate E for all k1 E(m,k1) - Forall k2, decrypt - C and look up E(E(m,K1),K2) C Figure 1: Double encryption using two independent keys and a meet-in- the-middle attack.