A set of requirements regarding password creation, storage, and usage. These requirements often constrain several characteristics of passwords. So, a password policy is a set of rules designed to enhance computer security by encouraging users to employ strong passwords and use them properly.

learn more… | top users | synonyms

3
votes
3answers
296 views

Same User, Different Access Points, different passwords?

We have a system (e.g. purchasing) where there are multiple access points. One is a back-end desktop application only accessible by employees within the LAN, the other is an Internet accessible Web ...
3
votes
1answer
693 views

Why do some large companies still store passwords in plain text/decrypt-able format? [closed]

In the last couple of weeks I've come across two fairly large companies who seem to not have stringent password security: Tesco - they store passwords in an "encrypted" format, yet they can decrypt ...
3
votes
3answers
167 views

In what situations are web services required to protect confidentiality of user information?

I know that if a web application needs to be PCI-DSS or HIPAA compliant the user personal identifiable information (e.g. user password, etc) needs to be kept confidential. Under what other situations ...
3
votes
1answer
458 views

Best security algorith for storing passwords [duplicate]

Possible Duplicate: Which password hashing method should I use? I want the best cryptography algorithm for storing passwords in database, which one should I use and how can I implement ...
3
votes
1answer
252 views

Is a One Time Password Scheme based on Diceware viable and secure?

I recently learned about diceware and was thinking about how it could possibly be used to create a one time password scheme. I'm thinking S/KEY is probably more appropriate, but would a system that ...
3
votes
0answers
245 views

Similar passwords can't be used again. A sign of unhashed password storage? [duplicate]

In my school everyone must change their password every six months. The new passwords cannot be the exact same as the old one, this make sense, however many of my peers often complain that they need ...
2
votes
6answers
1k views

Does Username + Password + Pin improve login security?

I've been asked to add a feature to a website to require a pin for users. The site currently uses username and password. If a user wants to change their password they need to supply the current ...
2
votes
3answers
362 views

Where did common “minimum password length” guidelines originate?

Not long ago, the common wisdom was that passwords should be at least 8 characters long. These days, the most common minimum is 12. Where did these common values originate? Interestingly, 8 is ...
2
votes
3answers
135 views

How to make an outbound request to users to update their passwords?

Clearly it works best if the request to update a password happens as a response to an inbound request to access a known system, but how do you make an outbound request to users to update their ...
2
votes
5answers
296 views

Is accepting old passwords a bad policy?

This question is inspired by an experience I had today with online banking, as follows. One year ago I opened an online deposit account. (Without naming the bank, I will say the company is currently a ...
2
votes
3answers
380 views

Account lockout with human interaction required to unlock

I just got locked out yet again from my university's system for typing the wrong password twice, then mistyping the correct one by accident. Now I have to call the helpdesk or go there myself to reset ...
2
votes
3answers
249 views

At what point is password complexity “safe enough”

Obviously the best passwords will be highly complex randomly generated passwords stored in a password vault. For the average user though, this might be a slight overkill. Assuming that the average ...
2
votes
2answers
259 views

Too many passwords?

Is it necessary to have hard drive and bios passwords if you also have full disk encryption, or maybe at least the hard drive password is unnecessary because there would be two passwords protecting ...
2
votes
1answer
158 views

Is there an equation to calculate the number of instances of a series of characters exist in a given key space?

If I'm using 16-18 character-length passwords with 94 different possible values-per-character (lower alphas, upper alphas, numbers, and special characters), is there an equation I can use to calculate ...
2
votes
1answer
93 views

How could someone change a root password without modifying `chage -l root` date?

How could someone change the root password without changing chage -l root Last password change date? I know it was changed because it does not match the value in Keepass. I noticed when I tried to use ...
2
votes
2answers
123 views

Password reset system code system vs long hash

I'm building a password reset system at the moment and I've come across a dilema. Currently we have a system which creates a long md5 has (16 characters) and emails a link to a customer which they ...
2
votes
4answers
260 views

Why do some passwords not allow certain types of characters?

Is there any programing related reason why some password cannot have certain characters? If the idea in storing a password is to store it's hash, since a hashing function can take any input (ok at ...
2
votes
1answer
3k views

How does Activesync security policy affect the usage of the iOS fingerprint scanner?

An Activesync IT administrator has the ability to choose if the phone should require a password, and also how complex it should be. Since the fingerprint scanner appears to replace the traditional ...
2
votes
3answers
331 views

Alternatives to Common Password Retrieval

Wired wrote an article recently about the top tech fails of 2012 and to no surprise, the password was on the list, more specifically the way a user can retrieve their passwords. What are some nifty ...
2
votes
3answers
106 views

Does my account lockout policy makes sense?

I have a web-based application where users can log on with username and password. I just implemented a new account lockout feature and was wondering whether it makes sense or I totally screwed it ...
2
votes
2answers
137 views

What are the vulnerabilities of reusing passwords for generation of keys and encrypted files?

The main reason why reusing a password for different accounts is not recommended is that if the password is compromised, all accounts are compromised. This question is about vulnerabilities other ...
2
votes
0answers
75 views

How can a service shorten a password if it is not stored in plaintext? [duplicate]

Possible Duplicate: How can Microsoft validate a shorter password on Microsoft accounts (MSDN)? My Microsoft password was 18 characters long and when I updated to Outlook.com it started to ...
2
votes
0answers
160 views

Lastpass - Can I just keep the previous autofills? [closed]

I just installed the Lastpass Firefox plugin, and it seems like a useful tool thus far. The only thing that drives me crazy is that I am used to the Firefox saved passwords where it will show the last ...
1
vote
3answers
3k views

What do I need to do to secure log-in and registration for my website?

What security features do I need to have in-place to ensure that my website log-in and registration forms are secure?
1
vote
5answers
289 views

Should I enforce a password policy on a web site?

For a commercial web site, is it important to impose some restriction on passwords to access the system? Eg. special $char, Upper and lower case, numbers, at least a minimum length... Can a CAPTCHA ...
1
vote
3answers
110 views

Is it possible to have a high confidence that a password is not being reused?

Have a few thoughts on the topic, but the general gist is if a user inputs a new password, is it possible to have a high confidence that a password is not being reused elsewhere? By elsewhere, I mean ...
1
vote
6answers
235 views

Does including the username in a password make it less secure?

Many registration forms prevent you from choosing a password that includes your username. Is it a reasonable restriction from security standpoint? I can see that if your username is "foobar" and ...
1
vote
3answers
555 views

Password Security and ocl-Hashcat-plus

I recently read the Ars Technical Article about new features in ocl-Hashcat-plus. In light of questions like: Long Passwords: How are they more secure? and XKCD #936: Short complex password, or ...
1
vote
2answers
255 views

On what layer should password hashing and/or encryption take place

I'm finding myself on the inexperienced end of a discussion about where password hashing takes place. My coworker drew a schema from less to more secure, where the Public Internet was the least ...
1
vote
3answers
226 views

Should I trust my bank after this [closed]

I have just discovered that I can login to my bank with passwords that is not mine. Example: My password is "1234" but I am authorized with all possible post characters. For example "12345" or ...
1
vote
3answers
365 views

Is Password Complexity required at all

For a web-site I'm using what I hope is the most secure password storage scheme I can find, which boils down to having a salt and hashed password stored in a database of contacts:- Byte[] ...
1
vote
4answers
181 views

Authentication with an untrusted server

I asked a related question earlier, but I want to ask a broader version this time: To simplify things let's say I've developed an application that allows users to send messages in a chat room, and to ...
1
vote
2answers
522 views

Is dual control password is a feasible way to secure against unauthorized login?

I see that some organizations practice dual control password especially when it comes to critical system logins, etc. Is it feasible to implement such policy considering certain trade off such as ...
1
vote
2answers
108 views

MySql root password stored in .my.cnf

Before launch of a project, I reset the server's mysql root password. The colo that is hosting project wants the server's root database password stored in the .my.cnf file, in plain text, with the ...
1
vote
2answers
60 views

Problems with undefined password requirements [duplicate]

An annoyance of mine is when websites try to force me to use characters or a password policy that makes it difficult for me to remember (e.g. a number, lower-case, upper-case, special char, 5 - 10 ...
1
vote
2answers
62 views

Can I force unique passwords for domain admin accounts?

Best practices would dictate that domain admins should not be logged into as such for daily tasks. Ideally the user would have two accounts; Their "daily" account and their domain admin account. How ...
1
vote
3answers
356 views

What are the possible rules to identify password sharing- to prevent fraud

I am trying to build correlation/ potential red flag rules to detect if passwords are being shared or stolen... the primary driver for this is guidance from our compliance team, that much of our ...
1
vote
2answers
194 views

What's wrong with a website including a password in a confirmation email? [duplicate]

I recently registered for a website and received an email that said "Thanks for registering, here's the username and password you used to sign up". The webmaster assures me that plaintext passwords ...
1
vote
1answer
201 views

What rules should be enforced for users to create a strong password?

I'm looking for a definitive guide to the rules that determine a "strong" password for website authentication. It seems many websites have many different rules, and I'm not sure what is the best ...
1
vote
2answers
135 views

is it appropriate to set restrictions on a user's password? [duplicate]

Possible Duplicate: XKCD #936: Short complex password, or long dictionary passphrase? Im developing a website and am curious as to the current trends in the nature of passwords. Is it good ...
1
vote
1answer
81 views

Could Mental Cryptography(?) be useful to ordinary users?

I recently read about 'Mental cryptography' or 'Metal hash' process from this post: Mental cryptography and good passwords (via this message board ...
1
vote
1answer
46 views

Importance of password strength with secure element?

Greetings SE security community. Background: I have a number of items like certificates, databases, and encrypted file systems that require private keys. In order to avoid having duplicates of these ...
1
vote
2answers
81 views

cleartext passphrase for keystore

How is passphrase for a keystore to be stored? we have all passwords encrypted and the key to encrypt is stored in keystore , so how is the passphrase for the keystore to be stored? in clear text? if ...
1
vote
1answer
89 views

What function(s) to be used to generate Salt on Windows Mobile 6

I am looking for THE or a real function I can use to generate salt for my mobile app on Windows Mobile. In case I am not abusing in this request but in the future I plan as well the same app for ...
1
vote
3answers
50 views

What are the pitfalls of repeating a password multiple times for increased length and entropy?

Many of us are familiar with this comic. If I had a word like "catfish" and just repeated it an arbitrary amount of times, say n, it would be theoretically stronger. Wouldn't it? One pitfall I ...
1
vote
3answers
106 views

Site allows both Partial and Complete password authentication; do they have my password in plain text? [duplicate]

My bank provides online banking facility like most of the banks these days. On the web they have Partial Password Authentication. Although I don't really believe in PPA providing extra security but ...
1
vote
1answer
180 views

how to use hash passwords to retrieve keys from keystore or access database

How do I hash the password for a keystore? How do I then use the hash to retrieve something from keystore? Similarly, how do I use a hashed password for accessing the database? I have encrypted the ...
1
vote
1answer
125 views

Is it a good idea to give users an additional password that they do not control?

It's a given that users will choose bad passwords. Why not help them out? Using a securely-random choice from a large dictionary, choose one or two words and tell the user to write them down. When ...
1
vote
2answers
110 views

Is it bad to use the same sequence of characters in each password?

A friend of mine purposed a method of making passwords where each has the same base and added to it is something indirectly related to the site or product being signed into. For example all passwords ...
1
vote
1answer
928 views

Why do websites limit password length? [duplicate]

I just made a new account with some eGov service (Belgian government). I use LastPass (which generates long, random strings for each site), But the system told me that the maximum allowed length was ...