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Plenty of ciphers come out of the USA from government research or selection competitions. AES and DES are examples. Indeed, the US is known from some crypto-related competitions that were/are ope to anyone and they surely will do ample of government research related to cyptology, but you need to be sure that you differ between “they selected it” and ...


4

You are actually doing the right thing, however you do not include the "_" as part of the characterset. Assuming the alphabet consists of 27 letters (A-Z and "_"), and using the appended JavaScript script (you can simply paste it into the console), returns one sentence which actually does make sense: THE_FAILURE_MAY_BE_BOTH_DELIBERATE_AND_CLANDESTINE var ...


1

All of them can be used to deal with unreliable, unordered datagrams; as long as you can derive an IV for the UDP packet then a cipher mode of operation should succeed. You need some kind of unique method of identifying the packet of course. Note that (the information used to generate the) IV may be public. Usually you need some way of identifying the ...



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