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Recursion

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3. Kerchoff's postulate

Reply to IDemo (Reply #2)

Fri Jul 5, 2013, 11:55 AM

Jul 2013

Always assume an attacker had access to the entire cryptosystem except the key.

If any byte of the pad is used more than once, an attacker can start doing statistical analysis.

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A question on an encryption method [View all] IDemo Jul 2013 OP

If I'm understanding your description, that's called a "one time pad" Recursion Jul 2013 #1

Upon a quick Wiki check, yes IDemo Jul 2013 #2

Kerchoff's postulate Recursion Jul 2013 #3

Isn't this how software like PGP works? ManiacJoe Jul 2013 #4

No; one time pad is symmetric key, PGP is asymmetric key Recursion Jul 2013 #5

Gotcha. Thanks for the correction. ManiacJoe Jul 2013 #6

What you describe is a one-time pad... ljm2002 Nov 2013 #7