Tagged Questions

The functions performed by the person or processes responsible for security of passwords on a given system.

learn more… | top users | synonyms

0
votes
3answers
570 views

Why do you need to login after you change a password?

I can't recall a website that after resetting my password I was automatically logged in, I had to type the password again - which seems quite silly. From a security perspective, why do websites do ...
0
votes
1answer
178 views

email on hosting company's site hacked?

I have a friend who's has a site hosted by a company in the states. They think that someone has gotten access to their email account because any requests for support submitted via their website ...
2
votes
3answers
271 views

Is there any reason I shouldn't use SHA1 of salt + website name + master password for my password in websites?

I considered writing a program to do the above for websites I only intend to use for short-term use.
5
votes
2answers
201 views

Why would Keepass2 decrease the password quality after adding another character?

In Keepass2 I was typing in a password and noticed the number of bits went down. Why would this be? I was using two words and mixed them up by replacing certain letters with numbers.
1
vote
3answers
850 views

Implementing 'Remember Me' for a mobile application

I am developing a mobile application wherein I need to implement the 'Remember Me' functionality. There are certain pages within the application which require you to login. What I need to do is, if ...
2
votes
3answers
2k views

Microsoft password email reset link leads to different url?

...I am really annoyed and unsettled by the password reset email I just received from Microsoft. What should I think of this? My email client correctly told me that the underlying url is not the same ...
8
votes
1answer
729 views

How to get a 'million rounds of PKCS#8 + PBKDF2' with OpenSSL?

I posted this question Is a passphrase-protected SSH private key susceptible to a dictionary attack? a few days back. An excerpt from the final answer: With PKCS#8 + PBKDF2 and one million ...
5
votes
3answers
757 views

How often should I reset my salt?

I'm thinking of implementing a salt recycling scheme on my user credentials database. The motivation behind this decision is that even if the attacker manages to get his hands on the database and has ...
7
votes
2answers
394 views

Secure password management

I've recently begun using Keepass for my personal password management. I am setting it up to sync between my home PC, work PC and mobile device using dropbox. I'm going "all the way", and have ...
6
votes
2answers
880 views

Best Practices for verifying a users identity for helpdesk

I had a conversation today and someone challenged me as to why you would need to verify the identity of a user calling a service desk with anything other than their company email. Granted I know these ...
0
votes
2answers
183 views

Is my domain registrar storing my password in cleartext? [closed]

I called my domain registrar (unnamed here but not difficult to find out and a major provider) about a year ago to have them change some DNS settings. While on the phone, the customer service rep had ...
4
votes
2answers
754 views

What's the best way to send and receive lots of login credentials?

I'm currently a web developer for a company with lots of different remote clients. There are lots of usernames and passwords that I need to know so that I can do my job. When I first started, I was ...
5
votes
1answer
107 views

Is it acceptable to generate salts with a hash of the username?

Salts are supposed to be unique and randomly generated for each user when storing passwords. Is there a reason why we can't generate these salts with a cryptographic hash function using the username ...
19
votes
4answers
5k views

Should I use FileZilla?

Recently, an increasing number of people have started advising moving away from FileZilla. However, the only reason I can see for this is that FileZilla stores the connection information in a ...
4
votes
1answer
146 views

Is this cross-site password model secure?

I'm looking for a way of securely having passwords for different pages. Say I generate this password: ild23rfsfdfg%*#fArg34t34657%537@asd7oak2094^*q2k2k@Kk3j4tn453Q5# Then, for each site, I change ...
4
votes
2answers
112 views

Write & “WHERE” Clause Only?

I've had an idea kicking around in my head for a while, and am wondering if there are problems with it or it just has no value. What if a Database server (such as Postgres) had a column that could ...
4
votes
2answers
612 views

Would a massive blacklist of guessable passwords be useful? [duplicate]

Suggestions to make a good password all focus on creating a string that a computer (or more likely, a network of computers with multiple GPUs) can not guess. Putting a password meter for when users ...
1
vote
2answers
116 views

Mysql database password and webform password

I have a Mysql database where one table is meant to store user complaints/comments/suggestions. I am using Mysqli to connect to the database with a ...
2
votes
3answers
586 views

Should I take care when entering incorrect passwords in untrustworthy websites?

I have the problem that I usually use 4 passwords that I use quite often. I use the first two strong passwords for very important services (e.g. Email, PayPal,..), and the other two not so strong for ...
1
vote
2answers
554 views

Centralize Linux System Management

We currently maintain several linux servers and are looking to employ sub contractors. However, we wan't to keep tabs on who does what on each server. Other then creating sudo accounts on every ...
9
votes
1answer
39k views

Can the Gmail password be recovered from the Android Gmail app?

I have an Android device with the Gmail app installed. This app can access the mailbox so there must be some kind of authentication data stored on the device (possibly an application specific ...
8
votes
4answers
837 views

How dangerous is it to store password in plain text on sites like GitHub?

I have a few private repositories set up on GitHub for some of the projects I am working on for my company. These applications connect to databases and I have database authentication credentials ...
-1
votes
2answers
46 views

Secure OS for Website managing [closed]

I'm starting a new website project where I have many passwords (root,sql,wordpress, etc). I have a USB stick encrypted with TrueCrypt with a file of all my passwords. But I also want to be safe if i ...
2
votes
3answers
434 views

Storing passwords on a home computer

I remember all the passwords (and variations of passwords) that I use for various sites online. The problem is not that I forget a password, but that I forget which password goes with which site. And ...
4
votes
2answers
412 views

Is there a risk in sending the username in a password reset email?

We're using a CMS that has a password reset function that works according to best practices out of the box. Passwords are stored as salted hashes Forgot Password works like this: User enters ...
2
votes
1answer
279 views

How to manage passwords in a multi-tenant surrounding?

I am building a multi-tenant application in a shared database model. I would like to encrypt sensitive data so that only a particular tenant could have access to his data. What is the best mode to ...
7
votes
3answers
584 views

Can cloud based password managing services be trusted?

I'm a big time user of cloud based password managing services like LastPass. But in the light of recent revelations like various government backdoors in popular sites, programs like prism, etc. I'm ...
46
votes
8answers
3k views

I'm an IT consultant. Should I discourage a client from telling me his password?

I'm an IT consultant. One client has known me for a few years. He wants me to do some work on his kids' laptop again. I'll need to log into his kids' Windows user account. (I'm guessing that multiple ...
4
votes
1answer
265 views

RSA vs PBKDF2 for password storage (theoretical)

I know this is not the right way to store passwords, but I'm asking this from a theoretical perspective: Suppose a web site's passwords were encrypted with RSA asymmetric encryption and the private ...
2
votes
2answers
192 views

Password on login idea

In addition to the standard best practices on password logins. Has anyone considered a captcha like system but instead of just typing out what is in the captcha, the captcha will be directions on what ...
6
votes
2answers
1k views

How do I block LinkedIn from extracting data from Microsoft Exchange Server?

LinkedIn now offers the ability to take a real user and password from the end user and connect to Exchange Server for the purpose of importing contacts into their system. (To do this yourself, click ...
5
votes
3answers
2k views

Is KeePass a good defense against keyloggers?

KeePass is a program in which you can store your password and copy and paste them into websites. Does anyone know if it is safe against key logging software? Does key logging software pick up what you ...
-1
votes
2answers
409 views

Looking for safe, simple way to store passwords with PHP 5.2.17 [duplicate]

I've found many posts on StackOverflow and other sites using Google, but since security is always changing, and what was safe a few months ago not me anymore... I felt the need to ask on here. ...
18
votes
6answers
2k views

How to avoid scripts with hardcoded password? [duplicate]

I have some scripts on Ubuntu Linux machine that logs in to a database server to run some maintenance daily. To login to the database, I need a password and right now it is hardcoded in the script. ...
2
votes
2answers
144 views

Shared vs unique credentials for remote support vendor accounts

I have a situation where my employer has a support contract with a vendor for an application we use. This application runs on a (Windows 2008 R2) server that does not store or have access to any ...
1
vote
1answer
78 views

Password Verification Server

I posted a question here... Protecting Password Hashes with Store Procedures? ...where I asked about denying a website's database user CRUD access to the tables that store password hashes except ...
24
votes
2answers
1k views

Does versioning an encrypted file make it less secure?

Suppose I use KeePassX as a password manager, and I store the kdb file in Sparkleshare folder as a way for backing up and syncing with multiple devices. The kdb file in itself would be encrypted, but ...
4
votes
2answers
340 views

Protecting Password Hashes with Store Procedures?

I was thinking about the recent (seemingly weekly) security breaches we've seen where millions of password hashes have been leaked and I was wondering how one might secure their site against a ...
24
votes
10answers
5k views

Intel How Strong is Your Password page, good advice?

I came across this Intel How Strong is Your Password? page which estimates how strong your password is. It has some advice on choosing better passwords including that you should use multiple ...
1
vote
1answer
212 views

If a hacker gets into my PC can he get to my saved windows live mail passwords?

If a hacker gets into my PC can he steal my emails passwords? I use the windows live mail client to manage my email and I have saved my passwords when it asks me to save them. I run like 9 mail ...
8
votes
4answers
631 views

Do honeywords add any real security?

This paper proposes the concept of honeywords for detecting if a password database has been compromised. As far as I understand it works like this: You save n password hashes for each user, one that ...
-2
votes
3answers
1k views

How to effectively save database password inside desktop application?

Suppose we are in the field of desktop applications which need to store their data in a database. How do I store the password for this database avoiding the most obvious mistakes, which are: 1) hard ...
0
votes
3answers
440 views

Why one time passwords using nested hash chain are not used?

I am wondering, why web sites do not use one-time passwords generated by hash chain. By that I mean that a client chooses a secret and after being salted, he applies some secure hash function F() on ...
1
vote
1answer
339 views

Why are Lengthy Password Stronger Than Complex? [duplicate]

So all my life I've been listening to people tell me to make complex password: Upper / Lower / Numeric / Symbols. Recently though I've been reading / seeing that length above all seems to make for ...
4
votes
2answers
494 views

How to securely audit passwords using John the Ripper

When my clients create a password, they are shown a strength meter and I have set the requirements fairly high. However, the strength meter is essentially only useful if being attacked by a very dumb ...
157
votes
7answers
26k views

What's the rationale behind Ctrl-Alt-Del for login

Why is Ctrl+Alt+Del required at login on certain Windows systems (I have not seen it elsewhere, but contradict me if I'm wrong) before the password can be typed in? From a usability point of view, ...
16
votes
2answers
456 views

Mitigating the loss of a mobile phone used for second-factor login

Take the following scenario: John is using GMail for his primary email account and LastPass as his password management system. Both of these accounts are using the Google Authenticator mobile ...
11
votes
3answers
1k views

how secure is passwordcard.org?

How secure is passwordcard.org? Assuming user follows recommended precautions: Don't read along with your finger, or the smudge will tell a thief where your password is. Keep your PasswordCard on ...
3
votes
1answer
179 views

Why regenerating a password's hash?

I've read http://alias.io/2010/01/store-passwords-safely-with-php-and-mysql/ on how to store passwords using PHP and MySQL, the secure way. Elbert says: Use a cryptographically strong hashing ...
10
votes
3answers
4k views

SSH password vs. key authentication

I've usually been told that public key authentication is strongly preferred over password authentication for SSH. However our previous admin was against public keys and only issued passwords and took ...