Specific to the security of passwords: hashing, entropy, cracking, resets, lockouts, etc.

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1answer
142 views

What technologies does ChromeOS use to secure saved passwords?

I have read that Chrome will use the system's native credential tools to manage saved passwords (e.g. KeyChain on OSX, libsecret on Linux/GNOME etc). Does anyone know what tools are used on ChromeOS?
4
votes
1answer
81 views

Are there problems with reusing strong passwords for private gpg keys

I am currently maintaining a few different identities each associated with different gpg keys (for personal, academic, professional correspondence etc., whether or not this is a good idea is probably ...
3
votes
1answer
78 views

How to securely derive a second password specific to an user

I'm giving each of my users an unique Blocktrail wallet that is protected by two API keys (which the server knows) and one passphrase (unique to each wallet). I want the wallet's passphrase to be ...
3
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1answer
1k views

How secure is automatic authentication in Skype?

How secure is checking the automatic authentication option in Skype client? What if I sign in with Microsoft account instead of Skype id? What if both accounts are merged? Is there any documentation ...
2
votes
1answer
192 views

What are the security features of the Microsoft PasswordVault class?

There doesn't seem to be much information on the PasswordVault but it seems to provide for local encryption of credentials. There are references to it in this source code and this blog. The reason I'...
1
vote
1answer
104 views

How to handle password storage for my project?

We have NFC cards to keep track of presence, students scan their card to a terminal at the beginning of every lesson, we want to extend the cards usage to filter out who can access the Raspberry Pi's ...
1
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1answer
116 views

How is the username and password captured on this mobile device?

I have a Motorola phone, and I am concerned about my privacy after reading this article : http://www.beneaththewaves.net/Projects/Motorola_Is_Listening.html The poster says: For both of these ...
1
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1answer
800 views

Is there anyway to generate a SAM file?

I was wondering if it is possible to create a windows SAM file. I already tried using chntpw but it seems like it only works under a Redhat based linux, ie I was able to blank/change a Windows 7 ...
0
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1answer
19 views

Bypass bcrypt max input

I was reading this question regarding bcrypt max password length. Is there a preferred method or way to allow user passwords to be unlimited length? Or at least much higher? Is there an alternative ...
3
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0answers
22 views

Security concerns for long-lasting single use access tokens with secondary identity verification?

I have an application that has a user type that "returns as needed" over the course of 22 days to complete action items. The application handles sensitive/confidential information, but > 90% of users ...
2
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0answers
72 views

How exactly does “Apache Shiro's” hashing work when using a Desktop-Client

I was looking at this question How does storing hash passwords work? and every answer essentially says that Hashing is done via the server, or most of it should, as that is the safest way to do it. ...
2
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0answers
233 views

Securely storing users PIN on Android with fingerprint authentication

I am have an Android app where the user can enter a pin specific to a particular phone to save them entering the full password. I'm now looking at the new fingerprint reader API on Android M where I ...
2
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0answers
78 views

Password cracking based on properties of target

Many people base their passwords on some characteristics or properties of their persona, which might not even be included in wordlists used for a dictionary attack. If one would put research into ...
2
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0answers
575 views

Database row level encryption scheme

I am wanting to secure some highly sensitive data in a database. This would mean that the data needs to be encrypted and remain secure for 100 years if it were to fall into adversary hands. I also ...
2
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0answers
71 views

Creating New Acc in Mac Mail 1st Connect to Server not SSL is uname & pw tx secure?

It appears that whenever you set up a new mail account on Mac Mail on OS X (or iPhone, iPad etc), that as soon as you enter the server and the mail account user name and password, Mac Apple-Mail tries ...
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0answers
21 views

Account Connected Devices ignoring Credential changes

Hello People of Security, one of my accounts got attacked, so they(Provider) did expire my password. I'm currently not able to log into my account. So when I started an older PC of mine, I was still ...
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0answers
51 views

Create reduction functions in rainbow tables

I have been trying to understand rainbow tables lately and one part is giving me trouble to understand here. Let's say I want to generate a table where the chains are 100 000 hash/plaintext long. I ...
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0answers
67 views

Is that a way break Linux user password by bypassing grub protected?

The best way to delve into others Linux machine is by editing the grub. Many will start by, editing the line ro quite splash as rw init=/bin/bash during the startup (usually by pressing button e on ...
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0answers
37 views

Under what conditions does Safari have access to the Keychain?

The Keychain is shared among many different apple products and includes asymmetric, symmetric, and other types of security data. People who use iCloud, and also enable the keychain synchronization ...
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0answers
95 views

How secure is Asus router latest framework function: “Added protection mechanism for GUI login brute-force attack for login username and password.”?

I have just updated my RT-N12 D1 router to the latest framework, and it has new function - "Added protection mechanism for GUI login brute-force attack for login username and password.". I Googled and ...
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0answers
170 views

Google account's password exposed after authorizing web apps to the account

Yesterday I registered accounts on some online storage websites. On that same day's afternoon, Google notified me about someone had has logged in using my Google account in US (clearly that's not ...
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0answers
48 views

Key stretching approaches

I've seen that a number of key stretching algorithms and they involved increasing the number of operations needed to compute the key(i.e. the number of rounds within a hash function). But, I wonder if ...
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0answers
77 views

Customized approach to protect plaintext passwords/usernames in database table?

I'm in the process of building an app to let users sign up, connect their many email accounts (like Gmail) to the site, and allow email-related activities... like sending an email (please don't ask or ...
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0answers
326 views

WifiPhisher not creating a fake access point

I recently came to know about WifiPhisher. To test it, I set up an access point using my Windows laptop and tried to obtain its password using this tool in my Ubuntu machine. So, when I run the ...
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0answers
32 views

Syncing service passwords during offline installations

Due to very paranoid customer requirements, we have to install several Windows services on two different systems that should run under a shared service account. Each system should each have a copy of ...
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0answers
30 views

Is there a repository of credentials used in training materials/samples and SDKs?

Similar to a default password list for network appliances, it's conceivable that application layer passwords are default from training materials given to a developer. In fact, I have discovered ...
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0answers
219 views

How to add user entries with password field in LDAP over HTTPS

I am new to this kind of stuff (HTTPS etc.) and pretty much confused on how to go ahead with this. An LDAP server (ApacheDS) at the back-end stores the user details. To add new users, the user ...
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0answers
184 views

Security for message queue in ActiveMQ

I am using ActiveMQ and WSO2 for my application. I need to protect my queue to restrict posting of messages by anonymous users(I need to protect my queue with some password). I know, there is a ...
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0answers
316 views

Digital signature based authentication schema using two passwords

I'm working on an authentication system for a web based Bitcoin-related service. As part of the service, users do some less sensitive operations (mostly reading and sending various types of ...
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0answers
182 views

How does an attacker authenticate to a service using just the hash of the user (after performing a pth attack)

Let's say the attacker got the username and the password's hash. How can he use it when authenticating to some service in its domain with NTLM , for example? How can he send the request as the ...
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92 views

Does whosthere.exe of pth toolkit have to run with administrative rights?

To see the users that are connected to the machine and they're pass hashes with Whosthere.exe, do I have to run it as an administrator?
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126 views

Rainbow Tables: Why do we need to store the last value of a chain?

Surely we could just make it so a rainbow table says for each beginning of chain do 10k iterations, and then we wouldn't have to store both values? Or does by doing it this way stop collisions?
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246 views

How should I authenticate my SPA frontend with my API since I´ve got no authentication process in the site?

We are designing a web site for selling financial products online. The following is a high level description of the components: Our frontend will be a SPA built with AngularJs. The frontend will ...
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0answers
307 views

How secure is a Python Pyro daemon for storing a password?

I am using the Pyro package to create a daemon which will, upon startup, prompt for a password, and then the daemon will store that password as long as it is running. Other scripts will then make a ...
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0answers
20 views

Is a password or passphrase needed with a keyfile backup to decrypt

In my search for an encrypted NAS i have come across a few products that talk about backing up the encryption key and storing it in a safe location. My question is if this backed up keyfile is enough ...
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0answers
98 views

How to safely pass password reset token from http get request to html page?

I am working on implementing my own custom password reset that sends an email where the user is taking to a page to reset their password. So far I have generated a unique token that gets put in an ...
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0answers
52 views

Does an account with a !! /etc/shadow entry have to still expire?

Currently where I work, our password policy is set at 84 days. This is set in our login.defs on all of our Linux machines. We have policies that are set around PCI DSS 3.1 and the like, this goes for ...
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0answers
36 views

What is a straightforward way to brute force CLI applications?

This is a question to maybe more CTF-experienced guys among you. I wonder how you generally brute force a simple CLI application. For example if you have an application which tells you a user's data ...
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0answers
59 views

stream cipher & e-banking

As I read on internet, I ran into these two question. Yet, I thought about it but still don’t know how to tackle it. May I have your help? (a) During an e-banking transfer the bank uses a stream ...
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0answers
18 views

Receiving third-party credentials on AWS

In my previous question, I was trying to figure out how to store third-party passwords safely. Now it seems that they'll be sent to my AWS instance from another AWS instance. I imagine the transfer ...
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0answers
150 views

Generate password list with specific keywords and length

I need to generate a list of passwords to try penetrating into a wi-fi network. I have a pretty big list of keywords and I want to use them to generate as many possible passwords as possible, which ...
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0answers
110 views

Hydra command for cracking a webpage which uses <span> tag for failed login attempts

I'm trying to for crack a simple webform for testing hydra in Kali. When the webpage encounters a wrong username and password combination it pops up a message using the following html code:: <tr&...
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0answers
255 views

Best way to store a password in a text file

We have a WebLogic server (WLS_APP) with a lot of web applications, we also have an Oracle Service Bus (WLS_OSB) with a lot of services deployed on it. We have these services aggregated in proxy ...
0
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0answers
350 views

Breaking EncFS given .encfs6.xml

I forgot the password of a EncFS folder (created, went to vacation, forgot). But I remember how the password was created (e.g. was a sequence of 4 dictionary words). So I decided to try to find the ...
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0answers
56 views

Trying to figure out the hashtype of this digest-auth htpasswd file

Simple question for y'all as i'm having some trouble identifying the hash type of this from a http digest file that I have setup for rutorrent on a apache2 server. Here's an example of what it looks ...
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0answers
297 views

Windows Credentials - read password

What is the cipher used by windows Credential Manager to generate credentials backup files (*.crd)? With a backup file from Credential Manager and the password used to created that backup file is it ...
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0answers
929 views

Line Length Exception in hashcat

I'm very new to cracking a password so sorry if I sound stupid. I am trying to get my admin password from my second PC (I lost it). I did find the SAM file with kali linux and with bkhive and samdump ...
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0answers
84 views

Request for Google Password for Calendar Updates

A website that I trust (Delta Airlines) offers a link to add flight information to Google Calendar; that link opens a window asking for my Google login and password. Based on the advice in a similar ...
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0answers
121 views

drupal external authentication - how to handle password?

I need to implement an architecture someone else designed. They have a drupal as user interacting component, and an external authentication module. To authenticate, from drupal, username and ...
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0answers
1k views

Brute-Force/Dictionary attack against encypted file using PBKDF2 key derivation

I have been following this very useful post by Thomas. My use case is slightly different. I am developing a mobile application which requires some sensitive data to be stored on the device in a SQLite ...