20,259 reputation
23393
bio website
location Brooklyn, NY
age 33
visits member for 3 years, 4 months
seen 4 hours ago
Good Morning how are you, I'm dr jimbob
I'm interested in things.
I'm not a real dr,
But I am a real jim bob.

Have a PhD in Experimental High-Energy Physics, but left academia in mid-2010 to program professionally.

Mostly program/script in python, django, and jquery these days doing mostly web apps.

Also have experience programming in C, C++, java, haskell, php, and (bash) shell more in the past.

Linux as primary OS since 1999, ubuntu user since 2005 (Hoary).


May
19
revised My Control Panel and online IP addess tools report different results for my IP address
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May
19
revised My Control Panel and online IP addess tools report different results for my IP address
added 779 characters in body
May
19
answered My Control Panel and online IP addess tools report different results for my IP address
May
19
revised Serpent cipher technical details in-depth
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May
19
comment Serpent cipher technical details in-depth
@AntonGarciaDosil - Edited. Thanks, it was a good catch. Note that there's intrinsically no reason that AES fixes the block size (e.g., prior to being standardized into AES, both the key size and block size of Rjindael could be changed independently).
May
19
revised Serpent cipher technical details in-depth
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May
18
revised Stream/Block encryption using XOR and Hash function?
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May
18
revised Stream/Block encryption using XOR and Hash function?
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May
18
revised Stream/Block encryption using XOR and Hash function?
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May
18
revised Serpent cipher technical details in-depth
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May
17
answered Serpent cipher technical details in-depth
May
17
answered Can a guest virtual machine be compromised by a virus on the host machine?
May
17
revised Stream/Block encryption using XOR and Hash function?
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May
17
comment Stream/Block encryption using XOR and Hash function?
@DanielValland - I think its fair to assume if anyone ever deployed this scheme and could say use it to encrypt files or messages, they may apply it multiple times and having a random nonce/IV is very much necessary in that scenario. I've expanded my thoughts on why the MD construction is bad. I still haven't fully worked it out but gave a basic outline of how it would be attackable. Using a different type of hash like Keccak (based on sponge construction) wouldn't be vulnerable in this way, but again using a well-vetted block cipher seems a much better idea.
May
17
revised Stream/Block encryption using XOR and Hash function?
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May
17
revised Stream/Block encryption using XOR and Hash function?
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May
17
answered Stream/Block encryption using XOR and Hash function?
May
16
revised How secure is Vigenere cipher for random data?
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May
16
revised How secure is Vigenere cipher for random data?
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May
16
answered How secure is Vigenere cipher for random data?