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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5
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65 views

Samba printer usernames and passwords , security problem

Password leaks , printing from Linux client to windows based print server When authenticating Linux users for using a windows share printer on their machine, the windows domain user-name and password ...
5
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50 views

How the AWS signature works in depth

I'm trying to understand how the AWS signature 4 works. I read the docs and I found the Python example where a signature is computed ...
4
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0answers
50 views

Can I use a satellite phone for 2 factor auth sms and such?

Would 2 factor authentication SMS messages or other kinds of internet security notifications work with satellite phones? E.g. companies like Google, Paypal, Facebook, banking institutions and others ...
4
votes
0answers
715 views

Social Login + OAuth2-secured REST API

I'm implementing social login with Facebook, Twitter and Google+ on our OAuth2-secured REST API (secured using spring-security-oauth). I'd like to make sure that the following flow is secure and that ...
3
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0answers
374 views

Should Javascript & IFrames be used to refresh sessions when Master Cookie Domains are used?

Suppose I have 3 sites that I want to have SSO in, site1.com, site2.com, and auth.com. SSL is always required. According to how SiteMinder cookies are described here, one of those domains would ...
3
votes
0answers
370 views

What is the preferred way of using AWS (specifically S3) from mobile apps?

Adding the AWS access key and secret key directly in app code is definitely not a good approach, primarily because the app resides on the users device (unlike server side code), and can be reverse ...
3
votes
0answers
168 views

Login details security using salt and hash, and a login role in postgresql

I am coding up the security for a website in express.js and postgresql database. Now I have been reading about salting and hashing and I have the code set up with pdkdf2 using the crypto module, but ...
3
votes
0answers
64 views

What's The Easiest Way To Maintain Remote Users Access to a Webapp

Here is a real world case: A chain of high schools (several hundreds) has many websites (~ 3x number of Schools) that are content driven by users (the students). Every school maintains about 2-4 ...
3
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268 views

Routing Protocol Encryption

As far as I know 'newer' versions of routing protocols support authentication between routers. What about encryption and integrity checks? Some implementations like this one from Cisco use MD5, which ...
3
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104 views

Distinct databases with the same Kerberos Authentication server

Should two deployed applications within a private network requiring distinct databases (for storing their own users credentials) require distinct Authentication servers (implementing Kerberos)? Or is ...
2
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0answers
33 views

How does Adobe Pass Auto-Authentication work?

At time marker 2:05 of this video, he describes that Adobe Pass can automatically identify you based on your broadband provider, and sign you in/authorize you for media content. Can anyone describe ...
2
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87 views

Security token in android and embedded system

I have an embedded board with a very limited processing and memory resource. I would like to control the board using an android app. The users are categorized into 3 groups: owner of the board. ...
2
votes
0answers
34 views

What are the most common ways to Architect the verification process of the access tokens between resource and authentication server using OAUTH 2.0?

What are the most common ways to Architect the verification process of the access tokens between resource server and authentication server using OAUTH 2.0? I am trying to build a web application ...
2
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0answers
154 views

NXP NTAG 21x/Desfire password protection and Original signature, protects against cloning?

Hi i saw a few threads about NFC NTAG against cloning and NTAG Desfire , i just want to find out if NTAG 21x with their "New" password protection and "Original Signature against cloning" really does ...
2
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0answers
69 views

Zero Knowledge Proof Password Systems

I am wondering if there is a practical zero-knowledge proof system that can be used by humans to authenticate themselves to a server. Note that even the computer can not be trusted (at least with the ...
2
votes
0answers
145 views

Astonishing Recent Belkin Router Auth Bypass Vulnerability: CSRF Used to Exploit?

I was visiting the CERT site main page today for another reason when I glanced at the list of recent vulnerability bulletins and came across some news I had somehow missed before today: a notice that ...
2
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0answers
33 views

Low-resolution account enumeration with Office365

I am interested in the intersection of account enumeration and single sign-on. Often, there will be SSO-only and non-SSO users alongside each other in an application, and in terms of improved ...
2
votes
0answers
45 views

Patterns for asynchronous authentication (after message is sent)

I'm looking at a scheme where users/servers post messages to each other. One of the main challenges is to prove "ownership" of a URL - defined as the ability to receive messages. This can be done ...
2
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0answers
110 views

Can a service provider communicate directly with an identity provider?

I'm making an authentication server that will act as an identity provider for my service. Looking at the typical SAML use case, the service provider will redirect the principal to the identity ...
2
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0answers
156 views

What is a 'host identity' in the 'Host Identity Protocol' (HIP)

I'm a little confused about terminology in the Host Identity Protocol (HIP) The two distinct terms Host Identity and Host Identifier are described in https://tools.ietf.org/html/rfc4423#section-3 ...
2
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0answers
142 views

OpenID Connect: Why use authorization code flow?

I have a question about implementing OpenID Connect I was hoping I could get some help on. I understand the different flows and get that the authorization code flow is good because it allow client ...
2
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0answers
1k views

JSON Web Tokens vs. SAML

I don't know too much about security. Specifically, I don't understand the difference between JSON Web Tokens, SAML and OAuth 2. If you could provide some pointers and high level overview of their ...
2
votes
0answers
286 views

NFS IP spoofing

I am using VirtualBox: where the guest is an Arch ISO and the host Windows/Cygwin or a generic Linux. For sharing host folders, VB native shared folders is not an option (since the setup requires ...
2
votes
0answers
674 views

Mobile Backend Server: How to validate authenticated client is valid?

Consider this scenario Step 1: App asks user to "Sign In" using Google or Facebook Step 2: Once authenticated, app sends user's Id (from Google/Facebook) to My App Server requested to app ...
2
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204 views

How to verify a message?

I have a 192 bit data string and a 384 bit signature calculated with curve ANSIp192r1 as well as the public key. These readings originate from a SYM2 electricity meter and I would like to ...
2
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0answers
835 views

Safe communication via rest api between two known servers

I'm using Kinvey as backend but because it doesn't provide the ability to run custom code I have set up another server. So basically when x happens on Kinvey server, I send a call to my rest api on ...
2
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0answers
64 views

What flexibility does a “Third party gamma” offer to U-Prove deployment?

The U-Prove SDK has the following comment: (link) // 1: CA-RA split (a party trusted by the issuer provides the gamma value) Given that the Gamma value (if provided) overrides the Attributes value, ...
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106 views

In U-Prove, what is the purpose of “Pseudonyms”, “Committed”, and “Scope” values and how are they used?

U-Prove allows for anonymous authentication and authorization without the involvement of an IdP. When a client generates a presentation proof 3 values can be optionally included, but I can't find ...
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47 views

How to authorize users for rest service

me and my friend are doing a project for a company. It involves getting some information from the database and display it on a smartglass device (epson, sony, ...). Now we want to build a RESTful ...
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0answers
22 views

Renewing certificates in web services using mutual (2-way) authentication

I have a web service (let's call it Service X) which multiple other web services (clients) depend on. Communication between the Service X and any of the clients is done via mutual authentication ...
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42 views

Why is CertificateVerify message necessary? (Why isn't client authentication done through the KeyExchange)

Why is client authentication not done throught the KeyExchange like with the server, but through a CertificateVerify message? EDIT: To be more clear: When using RSA key exchange the client encrypts ...
1
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0answers
24 views

central auth servers and in-app password changing

BLUF: philosophically, when (if?) should (web) services that use a central auth server add the power to change passwords? Simplified definitions, for the sake of this question: Central Auth Server: ...
1
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0answers
105 views

Why is 'Bearer' required before the token in 'Authorization' header in a HTTP request?

What exactly is the difference between following two headers: Authorization : Bearer cn389ncoiwuencr vs Authorization : cn389ncoiwuencr All the sources which I have gone through, sets ...
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0answers
83 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 ...
1
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0answers
54 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 ...
1
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0answers
26 views

fakeauthentication is working when my belkin belkin router f7d2301 mac-address filtering enabled

Actually i have enabled mac-filtering in my belkin router and the security policy is none and the authentication is open authentication. Iam(attacker) using kali linux. when i done a fakeauth attack ...
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0answers
74 views

Peer Entity Authentication and Data Origin Authentication services in OSI layers

What kind of Peer Entity Authentication and Data Origin Authentication services are provided in network layer(L3), Transport layer(L4) and application layer(L7) ?
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24 views

Authenticating requests across a two tier application architecture

Consider the following architecture: Users log into a website and issue commands to the website. In parallel, separate software processes ("agents") on different computers connect to the website ...
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31 views

Domain authenticated video links, prevent video link sharing

I'm running WordPress and I have s2member pro plugin. I have videos that I'd like any body to watch on my website and only on my website, I realize that they could record or capture the screen, it ...
1
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0answers
69 views

What are the formal methods to analyze Authentication Protocol

I designed an authentication protocol for consumer-producer applications, which barrows features from Kerberos and Tesla. To check the strength of protocol I considered different well known attacks ...
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129 views

SimpleWebRTC Server Side Authentication for Room Access

I am trying to do some sort of server side authentication to allow only specific clients to join a SimpleWebRTC Room. Right now, any client that goes to the SimpleWebRTC "demo" page can join the ...
1
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0answers
64 views

authentication model using oAuth

I am planning to use facebook authentication for my website window.fbAsyncInit = function() { FB.init({ appId: 'APPID', cookie : true, xfbml : true, version : ...
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55 views

Time Based Authentication

I need a way of authenticating that a file was generated by a particular machine that has a unique ID and a unique random secret also known to the authenticator, as an added difficulty the file ...
1
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0answers
179 views

JWT for User Authentication + Client App Authentication + User Claims Holder?

I would like to switch the security layer of my API from Basic Auth over HTTPS + claims-based infrastructure (w/ claims populated in a delegatinghandler) to a more robust mechanism and support client ...
1
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0answers
184 views

How to secure requests to my API from my web widget embedded in third party website

Background I'm designing a web widget for a new SaaS for embedding in a password-protected CMS. This would allow the customer to add something like the following to all the pages in their CMS to ...
1
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0answers
124 views

Oauth authentication without state parameter

I have some security concerns about the first step of account authentication in my application. The authentication goes through an OpenID provider. If the response of such provider shows that the ...
1
vote
0answers
59 views

Logging in from one CMS to another

Two websites with different CMS, user should type login & password on one website and needs to be logged in second website automatically. Now i have this method, it works but i want to know - is ...
1
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0answers
140 views

HMAC authenticated API calls with multipart/form-data file uploads

We have an existing API where 3rd parties can push data. The API calls are authenticated with HMAC using the same scheme as described in Ruby's ApiAuth library which I use to verify signed requests. ...
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0answers
209 views

Accessing the Exchange EWS API with safety in mind

I'm new to the security stack exchange, so feel free to edit the question or redirect me to another forum if this is not fitting. I'm currently working on a web application that will allow the user ...
1
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0answers
49 views

authentication token not stored in DB

I am implementing a webserver and the guideline I am following suggests: - to create token by a Serializer that takes the IdUser, a symmetric key and an expiry date - provide it to the user but not ...