38 reputation
4
bio website
location Scotland
age
visits member for 5 months
seen Jul 6 at 0:48

Apr
5
asked Definition of a Statistical Test
Feb
21
accepted Exercise: Attack on a Two-Round DES Cipher
Feb
20
revised Exercise: Attack on a Two-Round DES Cipher
added 265 characters in body
Feb
20
comment Exercise: Attack on a Two-Round DES Cipher
I'm afraid I've come to a dead end.
Feb
19
comment Exercise: Attack on a Two-Round DES Cipher
Presumably I am not able to run an exhaustive search on all possible 48-bit keys since I am not able to call F directly? I'm only about 6 weeks into learning about encryption and am still taking baby steps.
Feb
18
revised Exercise: Attack on a Two-Round DES Cipher
added 218 characters in body
Feb
18
comment Exercise: Attack on a Two-Round DES Cipher
@Tylo - Ah, yes. You're right. How do you understand it?
Feb
18
comment Exercise: Attack on a Two-Round DES Cipher
@Poncho: "Look at the details of F": Do you mean the 4-stage process of expansion, key mixing, substution, and permutation in the Feistel function?
Feb
18
revised Exercise: Attack on a Two-Round DES Cipher
added 2 characters in body
Feb
18
asked Exercise: Attack on a Two-Round DES Cipher
Feb
18
comment Block Ciphers and (Non-)Generic Attacks
Upvoted them now.
Feb
18
awarded  Supporter
Feb
17
comment Block Ciphers and (Non-)Generic Attacks
Both answers are very helpful, but this is the clearer, I think.
Feb
17
accepted Block Ciphers and (Non-)Generic Attacks
Feb
17
awarded  Scholar
Feb
17
comment Block Ciphers and (Non-)Generic Attacks
"In many scenarios, that's expected after about 2b/2 blocks" - would it be correct to say that this sounds somewhat like the birthday attack?
Feb
17
revised Block Ciphers and (Non-)Generic Attacks
added 4 characters in body
Feb
17
comment Block Ciphers and (Non-)Generic Attacks
Interesting. But how would you define "generic attack"?
Feb
17
awarded  Editor
Feb
17
revised Block Ciphers and (Non-)Generic Attacks
added 112 characters in body