Loose round-up lacks even circular logic

Round-up

Tying up syntactic loose ends

Minimizing the Two-Round Even-Mansour Cipher

The r-round (iterated) Even-Mansour cipher (also known as key-alternating cipher) defines a block cipher from r fixed public n-bit permutations P1, . . . , Pr as follows: given a sequence of n-bit round keys k0, . . . , kr, an n-bit plaintext x is encrypted by xoring round key k0, applying permutation P1, xoring round key k1, etc. The (strong) pseudorandomness of this construction in the random...

Public health round-up

People living in areas affected by Zika virus should take measures to protect themselves from mosquito-bites and destroy mosquito habitats to prevent pregnant women becoming infected with Zika virus, according to WHO interim guidance issued last month. Zika virus infection in pregnancy is typically a mild disease, but an unusual increase in cases of neurological disorders and neonatal malformat...

Public health round-up

WHO Director-General Dr Margaret Chan has taken charge of coordinating the international response to the Ebola virus disease outbreak in west Africa to prevent its spread beyond the four countries that have already been affected. The Director-General launched the Ebola Virus Disease Outbreak Response Plan in West Africa at a meeting with the presidents of Guinea, Liberia and Sierra Leone on 31 ...