3,056 reputation
619
bio website
location Curitiba, Brazil
age 35
visits member for 3 years, 3 months
seen Sep 11 at 13:31

Computer analyst


Sep
20
comment Biometric non revocable major flaw
Yes, some body parts can be glued back... hands, face and even... hum... Bobbit
Sep
11
comment How can you I detect low frequency brute forcing over multiple connections?
sorry, what I meant was against only one login, or against many different logins (even ones that don't exist)? But I already answered, I think
Sep
11
answered How can you I detect low frequency brute forcing over multiple connections?
Sep
11
comment How can you I detect low frequency brute forcing over multiple connections?
You mean lots of attempts to one specific login, or to combinations of login/password?
Aug
29
comment Why is password hashing considered so important?
Thanks for your demo!!!!
Aug
26
comment How can I prove that I wrote a certain blog post?
It's possible to study the author writing style and verify, with a certain level of confidence, that the writing style of one author is the same that is found in some published article...
Aug
20
answered Can hardware firewalls be infected?
Aug
19
answered Who tells that TrueCrypt is secure?
Aug
16
awarded  Peer Pressure
Aug
9
comment Obtaining e-mail address at registration
ops, I'll comment on stackoverflow then...
Aug
9
comment Obtaining e-mail address at registration
You must save the username/ password, the email, and the unique link (one link to each username/email)...
Aug
8
comment Are there any guidelines for passwords that need to be read out loud?
Strong password, easy to tell on the phone? "CorrectHorseBatteryStaple" isn`t mandatory here?
Aug
8
awarded  Popular Question
Jul
18
comment Is it acceptable that a skilled professional pentester deletes or modifies sensitive data in production unintentionally during a pentest?
@MarkHenderson I'd love to see a site with details of that case... :)
Jul
12
comment How exactly is MD5 vulnerable to collission attacks?
@caesarsgrunt yep: if you`re sure you`ll provide the file and the hash, it`s less likely that someone will come with a second file that`ll have the same hash. But, given that other hash functions exist, and aren`t broken yet, it`s advised to move to another one, when possible... :)
Jul
12
comment How exactly is MD5 vulnerable to collission attacks?
@caesarsgrunt : take a look at en.wikipedia.org/wiki/Cryptographic_hash_function#Properties . What you ask is the second pre-image attack. This answer was about the collision resistance...
Jul
12
comment How exactly is MD5 vulnerable to collission attacks?
glad to help, but the first answer (oleksi) explained it all.. I just remembered the example and googled it :).
Jul
12
comment How exactly is MD5 vulnerable to collission attacks?
see th.informatik.uni-mannheim.de/people/lucks/HashCollisions/… and th.informatik.uni-mannheim.de/people/lucks/HashCollisions/… : both have the same md5, both are very different...
Jul
12
answered How exactly is MD5 vulnerable to collission attacks?
Jun
28
comment Are services like “LastPass” less secure, as they have all my passwords protected by a single password?
@Sid that was just some irony, and a tought one because... well, sometimes users never look after the policies :-)