[Cryptography] basic cryptography ... was: key breaking

[Dennis E. Hamilton]

> -----Original Message-----
> From: cryptography [mailto:cryptography-
> bounces+dennis.hamilton=acm.org at metzdowd.com] On Behalf Of John Denker
> Sent: Monday, November 23, 2015 17:05
> To: cryptography at metzdowd.com
> Subject: Re: [Cryptography] basic cryptography ... was: key breaking
> 
> On 11/23/2015 11:23 AM, Viktor Dukhovni wrote:
> 
> > The other key can simply be the same for every block, no need for
> > RC4:
> >
> > 	K_1 xor AES(K_2, data) xor K_1
[orcmid] 
Surely there is a typo in this formula.  As written, the K_1's cancel out.

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