Authentication - establishing the authenticity of a person or other entity. Not to be confused with authorization - defining access rights to resources.

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2
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2answers
69 views

One time passwords using Mobile phones

It is safe to assume that the majority of users accessing the internet also possess the mobile phones. So can we take advantage of this and relieve users of remembering any passwords. Instead of ...
0
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4answers
135 views

Security of a Random Password

i. If I choose random password of length say 15 from the alphabet set of size 94 i.e. from the search space of 94^15, is my password protected against all kind of threats? ii. Will there be any need ...
2
votes
1answer
39 views

Closely spaced failed logins in auth.log

I have a raspberry-pi (running GNU/Linux) and I recently allowed my router to forward port 22 (ssh) to the raspberry-pi so that I could log in while away from home. I then noticed a bunch of ...
0
votes
0answers
18 views

Is this login flow via an authenticated email account safe?

I want to have users log in by entering an email, and then proving that they control that email. I only care that they do control the email, and so want to avoid add another password to the process if ...
1
vote
2answers
34 views

How safe is to secure sensitive content by URL with MD5 hash and no other authorization?

Suppose we have website that use MD5 hash in URL like this: http://somewebsite.com/XXX/ where XXX is MD5 hash. Content of this website may have sensitive information like transaction details with ...
0
votes
1answer
116 views

What is a AUTH-KEY in the security of the computers?

I don't know if this is the right section to post my question and if it is not I apologize. I'm studying security in computers and in particular the URL Spoofing. I understand that a form of URL ...
1
vote
2answers
51 views

is IPSEC Authentication between local domain hosts a part of normal behaviour in a Windows network?

I am seeing lot of IPSEC Authentication messages in eventlogs of Windows domain hosts. I was wondering if this - setting up IPSEC connections between domain workstations is a part of normal Windows ...
3
votes
1answer
64 views

Secure REST API and Single Page App by using external OAuth 2 Authorization Code

I am trying to understand how to implement an OAuth 2 Authorization Code flow when having both a single page JS app and a REST API. The aim is to secure access to the REST API by offloading ...
0
votes
1answer
18 views

Verification code generation and expiration

I am trying to implement an application that includes registration, In order to register to the system the user shall enter his organization ID number let's say. To verify the user identity, a ...
0
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0answers
17 views

What is the difference between session fixation and session recreation?

I have read that both of them are conventionally the same. But there must be a few differences which differentiates the two terms. Anyone please explain.
2
votes
1answer
279 views

Facebook oAuth2 for Javascript client application

When implementing Facebook login using oAuth2 (the Javascript version), I receive an access token back from the Facebook auth server. So far so good. The problem I have is that I want to implement a ...
21
votes
3answers
3k views

What are the disadvantages of implementing HTTP authentication in a web application?

I know that there are different types of authentication mechanisms available. One among them is the HTTP authentication. What is the danger in using this method compared to other methods?
-1
votes
0answers
40 views

Amazon login request on port 843 to fnes.amazon.com [on hold]

I wonder if anybody knows why amazon, on their login page (both for amazon.com and for aws console login) does a request on port 843. This request is apearantly to name fnes.amazon.com My question is ...
0
votes
1answer
68 views

Idea for an algorithm to authenticate users with zero-knowledge-proof [need thoughts/review]

I have an idea for an algorithm. I don't know if I made any mistakes and need some extra thoughts/peer review on it. This would work as an (almost)zero knowledge proof for sending passwords that can ...
-1
votes
0answers
19 views

Drawbacks of OpenVAS [on hold]

Delibrate on any major vulnerability detection capability missing in OpenVAS compared to its commercial alternative solutions. Please.
0
votes
3answers
163 views

OAuth2 - Resource Owner Password Credentials grant

The OAuth2 spec describes the Resource Owner Password Credentials grant type and authorisation flow here. I understand that only 'trusted' client applications would be allowed to use this grant, for ...
-2
votes
0answers
15 views

DB vulnerability OpenVAS [on hold]

Could anybody comment on the strength of OpenVAS for detecting DB vulnerability.
15
votes
1answer
83k views

How do I clear cached credentials from my Windows Profile?

Windows seems to be saving my credentials for a variety of applications (terminal servers, etc) and I'd like to purge this data. How can I backup and purge this data?
17
votes
1answer
444 views

What attacks, if any, are possible against Security Support Provider Interface (SSPI)?

I've been looking at SSPI recently, as it is used for authentication in a variety of Microsoft products. From the looks of it, it's based on GSSAPI and provides an abstraction for wrapping various ...
5
votes
1answer
261 views

Security concept for Android app with PHP based REST API

I'm trying to build my own PHP based REST Api for my Android app and I'm a litte bit confused by all the different user authentication stuff one can find on the internet. So I want to present my ...
1
vote
1answer
183 views

automatic connection from LSASS to different IPs. Is this the usual behavior?

I'm using windows 7. firefox 22. connecting through a regular residential wifi router. In the last month I've noticed that when I connect to the internet and once in a while my firewall indicates me ...
51
votes
10answers
11k views

Can I scratch off the magnetic strip off a debit card to only allow chip and PIN?

I have been robbed in the past by thieves using my HSBC Debit Card (issued by UAE branch) to purchase mobile phones and accessories by signing for the purchases. While the card has chip & PIN ...
-4
votes
0answers
36 views

How to find Database attack in my site? [on hold]

When i open my site admin i cant able to view the booking details.But booking is stored in Data Base.Is there any attack in my site? Yes means how can i find and solve it?
0
votes
0answers
10 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 ...
1
vote
1answer
72 views

Authentication between two internal servers

I have two internal servers that are going to communicate with each other; they speak HTTP/TLS. Is there a best practice for authenticating communications between internal servers? Short of a best ...
2
votes
5answers
227 views

Can extra loading times on login attempts be a security threat?

I have a web application built with PHP with a login page where the visitor is supposed to enter his / her account's email address and matching password. Since I'm using the PHP native (slow) hashing ...
0
votes
2answers
27 views

Ubuntu backup to only specific devices

I am looking into setting up a secure Ubuntu server with daily backups to two different external hard drives that will be swapped with the external hard drive that is stored in a safe deposit box. ...
-3
votes
0answers
29 views

What forms of two-factor authentication are used by the Healthcare industry? [on hold]

I know fingerprint and usb tokens are used. Not sure if other schemes are used. Primarily hospitals and insurance providers.
-2
votes
4answers
174 views

Isn't it less secure to use something you are for authentication?

I have to think of this everyday when I close the doors of the shop I work in: A year ago we used to close the shop and arm the alarm using a key fob. This means the worst case scenario was that I ...
2
votes
1answer
246 views

Facebook iOS SDK Authentication

The Facebook iOS SDK only needs your bundle & app IDs of your iOS app to match those of your Facebook app. If I find out an app's app ID, can't I just create another iOS app with that app's ...
9
votes
4answers
210 views

What kind of factor is a physical signature?

I'm familiar with the basics of multi-factor authentication. Now I'm trying to understand how a physical signature, as written on, say, a check or a credit card receipt, would be classified: Is it ...
8
votes
1answer
894 views

Why would HTTP client only send authentication headers once an unauthenticated request was rejected?

The default usage of HttpClient and HttpWebRequest .NET classes is setting Credentials property and then asking the class instance to perform an HTTP request. If the target requres Basic authorization ...
0
votes
1answer
62 views

Should I use the root account on my Digital Ocean server?

I have set up an SSH key with Digital Ocean that is automatically added to any servers I create. Is it okay to use this root account for SFTP and daily use or should I create another user account and ...
4
votes
2answers
135 views

Two-factor verification without a mobile phone?

Currently, some services use a second layer of veficiation if logging in from a new device: Gmail and Facebook send a text or call with a code Facebook generates a code in the mobile application ...
2
votes
1answer
145 views

Is it safe to use virtual mobile numbers for verification

Is it safe to use virtual mobile numbers for account verification & authentication for services such as PayPal, Twitter, Gmail, Linkekdin, etc.? And what is the security drawback for this?
1
vote
3answers
155 views

Login required before SQLmap

I have a multipart form data where I am suspecting one of the multipart form fields (parameter named htmlbevt_id), to be vulnerable to SQLi. To test for the same I captured the request using Burp and ...
1
vote
0answers
39 views

Protecting data on a remote device

Background I have am developing a service which consists in a small headless client device (e.g. OLinuXino) which will contain sensitive data. The device will be plugged to a remote network (maybe ...
3
votes
2answers
65 views

Link Layer authenticated encryption vs authentication

Many security articles discuss about adding an extra layer of security at the link layer by either authenticating the data at the link layer authenticating and encrypting it. If we have ...
2
votes
7answers
304 views

Is it wrong to root login with SSH?

I've long been under the impression that with unix, you should never login as root. Now I've started using Virtual Private Servers over at DigitalOcean, and some advice is to use SSH keys to login as ...
8
votes
1answer
1k views

Designing single-sign-on with JSONP/CORS?

I like the way that OAuth/OpenID can authenticate/identify a user from another domain, but only if the other domain allows it (presumably on the user's instructions). I would like to do something ...
1
vote
1answer
89 views

Api authorization basic concepts in detail

I am trying to write an application is rails. Which is more like a api application so that when a user gets redirected from his application into mine I would like to authorize him and start a session ...
34
votes
3answers
32k views

Token-based authentication - Securing the token

I have developed a backend REST API for a mobile app and I am now looking to implement token-based authentication for it to avoid having to prompt the user to login on every run of the app. What I ...
0
votes
1answer
64 views

Steps to create user authentication system between mobile and server

First time doing a secure login from a mobile app to a server (built in java). I want to understand if I got this right. Login in for the first time: 1. On the mobile device hardcode a security ...
1
vote
0answers
45 views

Does Ally Bank's trusted image system actually make login safer? [duplicate]

Ally Bank uses a 'trusted image' system to supposedly make login more secure. I can't find evidence that this is standard practice, so I'll explain it. When creating an account, you choose an image ...
2
votes
1answer
40 views

Are AWS security groups sufficient to authenticate communication between instances? (HIPAA)

Say I have a private service that exposes sensitive information (PHI) via a REST API, and that I want to permit access to it from only one other service. Is it enough to partition these services ...
0
votes
1answer
57 views

Publicly Available API + Sensitive ID/Key Transmission Over HTTP

I've run into a predicament... I'm developing a mobile application that utilizes a server for various things. One portion is that it stores an id/key pair related to accessing and processing ...
3
votes
3answers
103 views

NFC contactless payment security

This is really bugging me. Up until recently debit cards with an electronic chip were the most popular electronic form of payment available in Poland (I'd wager that in other European countries as ...
0
votes
0answers
12 views

Prevent Derby SQL User Authentication Change [migrated]

Can someone tell me if there exists SQL code for Derby to change a username or password of a database? How may I reproduce this to prevent it in future in my application? What I'm busy doing, is to ...
2
votes
2answers
65 views

Securing fingerprint templates stored on web authentication server

I have a multi-factor web authentication server, that in addition to regular passwords uses fingerprints for user authentication. Can anyone think of a security flaw in the following scenario: I ...
2
votes
2answers
68 views

Does HTTP Digest Auth provide any increased security in this scenario?

Say I have a website running a popular CMS like Wordpress only over SSL through HTTP Strict Transport Security. Prior, the backend administrator login page could be accessed by anybody simply by ...