Thursday, February 18, 2010
Security makes money
Wednesday, February 17, 2010
Live Mesh
Live Mesh isn't only another file storage service. It provides several features such as:
1. Cloud Storage
2. File & Folder share with other users
3. Remote desktop
4. Multiple PCs can be connected to the same account and files/folders synchronised between them.
5. Event feed via RSS which tells you (and people you share folders with) of any changes made by anyone member.
To analyse
1.1 It gives each user 5GB free storage space with an option to upgrade.
1.2 Once a virtual folder is created in the cloud identical folder is created on user's desktop too. Now any files dumped into the folder will be uploaded to the cloud folder. This is very convenient although the upload is not very fast.
2.1 Files and folders can be shared with others and there is a good access control facility (i.e. forbid your friends to share this folder with someone else etc).
3.1 Remote desktop allows you to login into multiple PCs and use/run local applications. For this to work a PC to which you are connecting needs to be connected to the same Live Mesh account. I tried this at work but had no success!! I guess the problem was my network firewall.
4.1 Very useful if you use multiple PCs or work on a joint project with someone and you wish to share files.
5.1 This is useful as it can alert you to new files being added or removed from you account.
Existing services
1. Drop.io , Google Docs (has similar access control), 4shared.com etc.
NOTE: None of these create a local folder on your desktop and some might be less secure.
2. Google Docs (has similar authorisation features),
3. LogMeIn allows remote desktop connection, moving of files between PCs and no hassle with firewalls.
Security
The whole Live Mesh service is protected using your Live ID (i.e. hotmail account) and SSL. I'm not sure that this is very secure. I think they need to introduce two-factor-authentication. Also some form of file encryption in case someone does gain access to you Live Mesh account, although you could encrypt files on your PC before uploading.
Wednesday, December 9, 2009
Viewing decrypted files - vulnerability
Thursday, September 24, 2009
Google security
I've used Google Docs on a number of occasions for collaborative working. It might not be a perfect tool for collaborative work but it is free and does the job. In the past I did not pay much attention to the security aspect of those documents since they were never of contained highly sensitive information.
But what if they did?!
Sharing documents online has its advantages namely only one master copy exists and can be viewed and edited by multiple users simultaneously. Such documents are accessible (if not set as public) only to specific users (specified by the document owner) who must have a Google account too.
If those documents are protected by simple username/password combination, how secure are they? In fact such documents are as secure as the weakest authentication credentials (username/password) of users who share those documents.
Therefore I would like to be able to specify a certain criteria which users must fulfil before they can access my shared documents. To add an additional layer of security I should be able to specify:
1. "To view my documents the invited user must use a strong password", meaning Google “password strength” tool must indicate "Strong".
2. "To view my documents the invited user must use captcher when login-in".
3. “To view my documents the invited user will need a secret key to decrypt them.” Google docs (end emails in Gmail) should have offer encryption which would add additional layer of protection for sensitive documents.
All of the above should be optional so that those who see it as "just another obstacle" do not have to use it.
How much additional security would such options provide???
What about backup?? How secure should the backup be?