153 reputation
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bio website en.wikipedia.org/wiki/…
location Louisiana
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visits member for 2 years, 3 months
seen Aug 1 '12 at 20:34

I live in mud and eat dead stuff


Jul
16
comment How to communicate authentication tag for GCM?
Alright thanks for the answer and letting me know about the code
Jul
16
accepted How to communicate authentication tag for GCM?
Jul
14
awarded  Teacher
Jul
13
comment Which of these 3 AES 128 symmetric encrypt/decrypt routines is most secure?
I didn't realize CCM meant using CBC as the MAC and CTR as the mode until just now. I primarily avoided CBC-then-MAC because of the padding issues. My impression is that CCM, GCM, and CBC-then-MAC are all secure though.
Jul
13
comment Which of these 3 AES 128 symmetric encrypt/decrypt routines is most secure?
Also any comment on the Padding oracle attacks?
Jul
13
comment Which of these 3 AES 128 symmetric encrypt/decrypt routines is most secure?
HMAC is implemented, but CCM is not, so I would have to combine them myself. I already wrote the encrypt/decrypt routines here in my more recent post. I just used an external library. Its currently in gcm but can be switched to ccm easily
Jul
13
comment Which of these 3 AES 128 symmetric encrypt/decrypt routines is most secure?
I'm using a 12 byte nonce randomly generated, so thats 2^96 possibilities. And the standard is a probability of collision less than 2^-32. So I believe that is a large enough margin that I may assume no IV will repeat. Given that, would you still go CCM?
Jul
13
answered Padding methods for block ciphers - PKCS7 vs ANSI X.923
Jul
13
asked How to communicate authentication tag for GCM?
Jul
12
awarded  Student
Jul
12
comment AES GCM implementation in c#
well at least question 1 is out of the way, thanks
Jul
12
accepted AES GCM implementation in c#
Jul
12
asked AES GCM implementation in c#
Jul
11
awarded  Scholar
Jul
11
accepted Which of these 3 AES 128 symmetric encrypt/decrypt routines is most secure?
Jul
11
comment Which of these 3 AES 128 symmetric encrypt/decrypt routines is most secure?
Thanks for the advice, I'll follow it
Jul
10
awarded  Editor
Jul
10
revised Which of these 3 AES 128 symmetric encrypt/decrypt routines is most secure?
added 15 characters in body
Jul
10
asked Which of these 3 AES 128 symmetric encrypt/decrypt routines is most secure?