[Cryptography] XORing plaintext with ciphertext

[Carl Ellison]

If it were the straight Vernam cipher then this would yield the key. But that gets you nothing since that key is never reused. 


Sent from my phone


On Sep 7, 2013, at 4:13 AM, Jon Callas <jon at callas.org> wrote:

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> On Sep 7, 2013, at 12:14 AM, Dave Horsfall <dave at horsfall.org> wrote:
> 
>> Got a question that's been bothering me for a whlie, but it's likely 
>> purely academic.
>> 
>> Take the plaintext and the ciphertext, and XOR them together.  Does the 
>> result reveal anything about the key or the painttext?
> 
> It better not. That would be a break of amazing simplicity that transcends broken. 
> 
>    Jon
> 
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