Management of semi-permanent interactive information interchange between two or more communicating devices, or between a computer and user

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201 views

Which approach to encrypting data on a per-user basis is more secure?

As a bit of a thought experiment, I've been thinking through how one might design a web application where a user's data (say, from a form on a webpage) is stored, encrypted, on the server, using a ...
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1answer
336 views

What mechanism to use for simple and secure HTTP API access?

I am currently working on a service which offers a HTTP API for mobile clients. I want clients to authenticate in order to access my API. The server itself is doing the authentication there will be ...
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0answers
10 views

How does Facebook manage sessions? [migrated]

I have been observing how Facebook manages browser cookies and I noticed that they change the session cookies almost every second by Ajax polling. I would like to know how does Facebook manage user ...
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1answer
87 views

Could HTTPS-Attacks like CRIME be mitigated by changing the session cookie regularly?

I was just reading about CRIME which is an attack to steal sensitive information by creating requests. Could this attack be mitigated, if the Server wouldn't send the client the actual session key to ...
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1answer
84 views

Using encrypted data in session key instead of random

I am writing a service-oriented (REST) application that is (nearly) totally stateless: it can authenticate by API keys, but for web UI it uses the session where it stores nothing but an authenticated ...
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49 views

Passing Encryption Key Across Session for Symmetrically-Encrypted DB

I'm building a database that symmetrically encrypts user data. Nothing super sensitive, I'd use a third-party if it was. The data is encrypted with a surrogate key; the user must enter a password to ...
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1answer
105 views

Wouldn't transient cookies for session management increase effectiveness of MITM?

According to wikipedia, a transient cookie (aka session-cookie, in-memory cookie) is forgotten when the user closes the browser. These are also recommended for session cookies by OWASP. I've seen a ...
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138 views

How can I prevent SESSID stealing? [duplicate]

Possible Duplicate: Can you secure a web app from FireSheep without using SSL? How can I prevent someone on same network from stealing SESSIONID and using it in his own browser (it would ...
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2answers
306 views

Restore session in Firefox

Restore session in Firefox What does this mean, is it related to the session concept which is stored on the web server? If I stop the computer with my web-app, and then start it again before the ...
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0answers
39 views

Broken Authentication and Session Management Challenge [closed]

I'm trying to complete the OWASP Security Shepherd challenges and I'm a bit stuck on the Broken Authentication and Session Management Challenge. The challenge reads: Only administrators of the ...
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votes
4answers
208 views

user authentication my method (reinventing the wheel) is this secure?

I have read many articles advising to use OpenID, including Stack Overflow Q&A, for authentication. Unfortunately I can't use openid because my auth is not based on an email id - it is based on ...
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1answer
281 views

What are the valid characters which can be present in a session ID [can it have spaces] [closed]

I need to know what will the valid characters in a session id or in particular whether it can have spaces in it .?