The ANUBIS Block Cipher

Anubis crouching on a shrine (statue found in Tutankhamun's tomb) - Corbis collection

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Table 1: Differences between RIJNDAEL and ANUBIS

  RIJNDAEL ANUBIS
Block size (bits) 128, 192, or 256 always 128
Key size (bits) 128, 192, or 256 128, 160, 192, 224, 256, 288, or 320
Number of rounds 10, 12, or 14 12, 13, 14, 15, 16, 17, or 18
Key schedule dedicated a priori algorithm key evolution (variant of the round function),
plus key selection (projection)
GF(28) reduction polynomial x8 + x4 + x3 + x + 1 (0x11B) x8 + x4 + x3 + x2 + 1 (0x11D)
Origin of the S-box mapping u -> u-1 over GF(28),
plus affine transform
pseudo-random involution
(tweak: recursive structure)
Origin of the round constants polynomials xi over GF(28) successive entries of the S-box
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Last update2008.11.19
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