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visits member for 2 years, 3 months
seen 4 hours ago

Feb
12
revised Is semantic security important in a hybrid cryptosystem?
added 4 characters in body
Feb
11
accepted Is RC4 a problem for password-based authentication?
Feb
11
asked Is semantic security important in a hybrid cryptosystem?
Feb
9
asked Name for identical operations for encryption and decryption
Aug
4
asked Is RC4 a problem for password-based authentication?
Aug
1
accepted What are the dangers of predictable (repeated) plaintext structures?
Aug
1
revised What are the dangers of predictable (repeated) plaintext structures?
deleted 28 characters in body
Aug
1
asked What are the dangers of predictable (repeated) plaintext structures?
Jul
31
comment Does TLS use RC4-drop[n]?
Now it makes sense, thanks again. I was confused by RFC 4345 mentioning the possibility of recovering the key from the first keystream output bytes, but now I think they probably just want to be on the safe side and are not referring to actual attacks in that paragraph.
Jul
31
accepted Does TLS use RC4-drop[n]?
Jul
31
comment Does TLS use RC4-drop[n]?
Thanks, that pretty much answers my question. Just to make sure, regarding the second issue: There is no (known) way to derive the RC4 key from a single keystream alone, right? So even when the very first thing that is sent in a RC4 encrypted connection is gigabytes of known plaintext (zeroes, for example), the key cannot be easily recovered? (Assuming that the initial key has never been used before, even partially - unlike WEP etc.)
Jul
31
asked Does TLS use RC4-drop[n]?
Jul
31
awarded  Scholar
Jul
31
accepted How does a birthday attack on a hashing algorithm work?
Jul
31
accepted Why is a MAC needed?
Jul
20
awarded  Editor
Jul
20
revised How does a birthday attack on a hashing algorithm work?
added 209 characters in body
Jul
20
awarded  Supporter
Jul
20
asked How does a birthday attack on a hashing algorithm work?
Jul
20
awarded  Student