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Questions tagged [encryption]

Encryption is transforming information through a cipher to protect it from unauthorized access.

Encryption is the process of taking some information (the plain text), and transforming it (usually with a cypher and a key) so that it is secure. Assuming a sufficiently strong cypher and key have been chosen, this cyphertext can be shared widely, without the information being compromised.

The reverse of Encryption is Decryption, where the process is reversed (normally by someone holding the key and cypher details) to return the information.

See the Wikipedia Page for more details.

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Disk encryption without cooperation from system

I have a small embedded system that supports fat32. It does not have any encryption options for the files that it saves to a external usb connected disk. Modifying the source to support encryption is not an option. Are there any external drives, or…
michael
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PGP Encryption Proxy for Mail Server

I have a friend who is located in a part of the world that makes email encryption prudent for them. While I recommended OpenPGP, my friend thinks that it would have too high of a setup requirement for many of the people that would be sending them…
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Is it safe to alter the underlying encrypted files for a live mounted ecryptfs volume?

I want to do live synchronization of an encrypted directory with a server, such that the server only sees encrypted data. Suppose I put the underlying ecryptfs data in: /home/user/.Private And I mount that directory at: /home/user/unlocked Can I…
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Setup ecryptfs for Ubuntu 10.04 web server user directories or not? Will Apache still have access with eCryptfs?

When setting up an apache2 server on ubuntu 10.04 Server should the home directories be encrypted? Or, should the complete disc be encrypted? If the user home directories are encrypted will apache still have access? When the user is not logged in…
Don
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ssl communication handshake question

During SSL communication, the server sends its certificate to the client for authentication. Optionally, the client could send its certificate too, for client authentication. My question is, does the server (or client) send the entire chain to the…
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Software RAID, LVM, and Encryption Setup Questions

I have 4 hard drives, each with two partitions on them 10.1GB for swap and 990.1GB for the rest. I took this and set up two MD devices with RAID10, one for the set of 4 swap partitions and one for the set of 4 other partitions. I set the 20.2GB…
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Encrypted traffic analysis

I am trying to decrypt a https conversation with a hardware device I can't seen to change or download the private key. Is this even possible?
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How can I enable encryption for SQLite3 in PHP5.3?

The php manual for SQLite3::open has this information: public bool SQLite3::open ( string $filename [, int $flags = SQLITE3_OPEN_READWRITE | SQLITE3_OPEN_CREATE [, string $encryption_key ]] ) Opens an SQLite 3 Database. If the build…
meouw
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Is IPSec the only way to encrypt Microsoft SMB (CIFS) traffic?

I'm looking for ways to encrypt Microsoft SMB data traffic between a client and Windows server or filer appliance. This is not about encrypting the authentication but the actual data transfer. Is IPSec from the client to a Windows Server my only…
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Is encfs secure if it is "mounted"

I have some storage on a remote server that is not mine. I want to use encfs to store data there. Is encfs totally worthless if I don't dismount the folder?
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Error while decrypting https traffic in Wireshark

I configured Jetty with a self-generated private key and cert after a long struggle. Now, I'm having trouble decrypting the HTTPS traffic from the Jetty server that I captured for inspection. The following is the error from Wireshark's SSL log (file…
Srikanth
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Data encryption on VPS

I know there is no way to completely secure a running system, however I'd like to do do what ever is possible. I'm not sure how to phrase the question, but basically, I'd like to secure the data on the system, so noone would be able to access…
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Threading of PGP Whole Disk Encryption on server

I wish to use a 2010 vintage quad core Xeon server to periodically encrypt 500GB eSATA drives. I have three questions: 1) I assume the current version of WDE is fully multi-threaded and throughput scales roughly linearly with the number of…
Lunatik
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Easyest way to setup encrypted volume

What is the easyest way to set encrypted volume under linux? Basically, what I want is to have fixed size file in my home folder. When I mount it and type password, it should appear as regular folder. I should also be able to umount it. If it would…
Marko
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Secure communication between linked SQL Servers

Is the data transferred between two linked SQL Servers protected (encrypted) by default? If not, is there a way to accomplish this? I have two SQL Server 2005 databases running on separate servers, separate machines, separate networks. How can I…
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