3,016 reputation
619
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location Curitiba, Brazil
age 35
visits member for 3 years, 1 month
seen 18 mins ago

Computer analyst


Aug
18
answered Using last characters of hash as salt
Jul
31
reviewed Approve suggested edit on How can DH provide a known secret to two parties over an unencrypted connection without it being intercepted via MITM?
Jul
21
comment What is a good analogy to explain to a layman why passwords should be hashed?
@NateKerkhofs could you point that site out?
Jul
18
comment Can someone please explain RBAC to me?
you're welcome :). You can even take it and put your own answer, I didn't do it because I'm in a hurry...
Jul
18
comment Can someone please explain RBAC to me?
merlot.usc.edu/cs530-s04/papers/Barkley97a.pdf
Jul
18
comment Can someone please explain RBAC to me?
en.wikipedia.org/wiki/Access_control_list#Comparing_with_RBAC
Jul
17
comment Girlfriend just sent Personal info over email
She wanted to send those documents, and sent them to the right person? Or she sent the wrong documents? Or to the wrong person (although not an unknown address) ? Or she is worried because she sent them using email without encryption? Where did she sent it from ?
Jul
17
comment How to memorise multiple xkcd-style passwords for particular services?
@SteveDL "correct horse battery staple envelope" for email, "rainbow sand pipe nose face" for facebook, "dark bug hole scream gates" for your microsoft account... where the last word isn't random, just associated with the service/site/program...
Jul
17
comment How to memorise multiple xkcd-style passwords for particular services?
@SteveDL and I can improve my answer, based on your comments, to address such understanding. thanks!
Jul
17
comment How to memorise multiple xkcd-style passwords for particular services?
@SteveDL ah, thought was a mistake, because of the "service name" phrase that I didn't use. Thanks for your comments: I assumed that the OP said he would use the "correct horse" method to generate N passwords, one for each site, as he said he would "memorize all of them". And that the problem was only to know which password was used at each site/program. So, having a strong password, adding one element to associate it with the site wouldn't decrease the security.
Jul
17
comment How to memorise multiple xkcd-style passwords for particular services?
@Steve ops, perhaps your comment was to the other answer, provided by tom leek ?
Jul
16
answered How to memorise multiple xkcd-style passwords for particular services?
Jul
7
reviewed No Action Needed Is telling user that he is already signed in while signing up vulnerable?
Jul
2
comment Is this a secure way of storing passwords?
@Cthulhu the way the OP proposes it, concatenating random characters (if really random, will include non-printable characters too) avoid the problems that the article tries to explain.
Jul
2
comment Is this a secure way of storing passwords?
@Cthulhu so the answer should have stated that. The way it is, it's wrong. Hashing many times is good if you add the salt (and the pepper, why not). The article is based on a wrong assumption: the 14-printable characters have LESS entropy than the 20 hex-characters hash.
Jul
1
comment Password protect an excel file for a period of time?
@MOTS If the file is really important, that would attract attention from people who really want it, consider it impossible. If you want to protect against a 5 year old boy who wants it, perhaps you can... :) It really depends on the resources of your enemy.
Jul
1
comment Password protect an excel file for a period of time?
it would be much harder than that. If someone is able to see a file, he is also able to take a photo or film it.
Jul
1
answered Password protect an excel file for a period of time?
Jun
30
accepted How to properly anonymize data, if hashing isn't enough?
Jun
28
awarded  Yearling