834 reputation
410
bio website
location Curitiba, Brazil
age 35
visits member for 3 years, 4 months
seen 23 hours ago

Computer analyst


Nov
24
answered Where to store the file extension to retrieve it correctly after decryption
Nov
10
answered Are modified implementations of cryptographic algorithms a good idea?
Nov
6
revised Cracking secret key of a MD5 hash?
added 1083 characters in body
Nov
6
answered Cracking secret key of a MD5 hash?
Aug
3
awarded  Yearling
Jul
23
comment Secure way to store fixed size string of digits
Put the data in another server (if possible), firewall between them, assure that the software/database will sanitize any query and will only provide the needed answer (and can't be fooled in providing more), that it won't provide more than x answers per second/minute/day/whatever (to avoid some brute-force from web)...
Jul
23
revised Secure way to store fixed size string of digits
added 1201 characters in body
Jul
23
comment Secure way to store fixed size string of digits
I'll update my answer in few minutes...
Jul
23
answered Secure way to store fixed size string of digits
Feb
10
answered If attacker knows salt and hash, how is salt effective?
Jan
16
comment Password hashing in /etc/shadow
:) thanks! Although it seems an innocent string, I think recently problems from privacy make me thing on "I didn't make those numbers" come to my mind more frequently
Jan
16
comment Password hashing in /etc/shadow
why "OrpheanBeholderScryDoubt" ? Was it suggested in the original bcrypt proposal, or somewhere else? I'm curious abour its origins...
Nov
18
awarded  Enlightened
Nov
18
awarded  Nice Answer
Nov
6
reviewed Close Which crypto libraries/programs do we have the most confidence in?
Nov
6
comment Is it true, that non-military cryptography appeared in 50's and 60's only thanks to leaks from the NSA?
I read Kama Sutra several times and never noticed the "the art of secret writing". Something else in that book caught my attention and meade me miss that point. sigh...
Oct
10
comment Encrypting files with known headers
@PaulLynch :) sorry, just after you asked it in information security, all those answers become debates, and some confusion arised. Happy that someone answered in a way that you could understand it ...
Oct
9
comment Using multiple secret keys
Remembered me this xkcd algorithm: wiki.xkcd.com/geohashing/Main_Page
Aug
3
awarded  Yearling
Jul
17
reviewed Close Questions about BCrypt and PBKDF2