blowfish's keylen

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Hamdi Tounsi (hamdi.tounsi@ati.tn)
Thu, 2 Jul 1998 00:23:00 -0100 (GMT+1)


in various papers decribing blowfish, it was mentioned that the key can
be as long as 448 bits (14 long words). but in the key setup routine,
the P-array elements (18 long words) are xored cwwith the key bytes (cycling the
key if it is shorter than the P-array size) : the size of the P-array is then
18*4*8 = 576 bits, so why 448 bits ?

peace


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The following archive was created by hippie-mail 7.98617-22 on Fri Aug 21 1998 - 17:20:04 ADT