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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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How common are encrypted connections between email servers?

alice@a.com --> smtp.a.com --?--> Internet --?--> pop.b.com --> bob@b.com On the route from sender to server, and server to receiver, encrypted connections (STARTTLS, etc) seem to get more and more common. All major freemail providers and email…
porg
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Looking for an email encryption solution

I'm looking for an email encryption solution for a client. They are currently using Exchange 2007 but are willing to go to a hosted solution if necessary. They are looking for a solution that will allow them to encrypt messages based on certain…
Terry
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Why do https connections take longer to establish than straight http connections?

Why is it that Secured HTTP Connection (https) is Slower then than typical HTTP (http)? Just interested in knowing only. Thanks.
Nathaniel Varona
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Encrypting data over http without SSL

There is a web service that I am accessing, unfortunately, I can't paste the uri here because it is inside of an internal network and wouldn't do us any good here. The web service works great but the problem is the maintainers of it only support…
J.C. Yamokoski
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Outlook 2010 PST Encryption Algoirthm

What algorithm does Outlook 2010 use for it it's pst encryption? I am hoping it is AES 128 or 256.... Cheers
user25862
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Windows Server - share files without access for administrator

We have a MS Windows Server 2008 R8 based server that is administrated by our IT department. We would like to achieve two things simultaneously: A folder on the server, containing several thousand files (new files added frequently) that is…
Paweł
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Should I encrypt an SSL Certificate Request before emailing it?

I need to send a client an SSL Certificate Request (from IIS 6.0) They have requested that it ONLY be sent encrypted using an app like Winzip. My question is. Is this actually an issue? My very basic understanding of certificates is that the request…
Robin Day
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What books will help me learn everything I can about SSL/PKI?

Since SSL is the backbone of the internet, (now technically called TLS), what are some good books I should read up on to understand all aspects of it. I suppose I'll need to learn some math, some PKI books, crypto, and Sysadmin books as well. Since…
makerofthings7
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Encrypt connection between apache web server and mysql server

I'm setting up a local webapp. I have a CentOS-5 box that will be the webserver (Apache 2.2). I have another box (RHEL5) that will be used only for MySQL. The data will be encrypted on the webserver via PHP before being sent to the MySQL box and…
stormdrain
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Can I have a SSL certificate for direct IP access?

Is it possible to have a SSL certificate for access directly to an IP, and not through a hostname? Eg, can I purchase an SSL certificate to make https://1.2.3.4/ work without giving a security warning?
davr
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Mac OSX Server: svn via ssh command line and encrypted passwords

When I log into our mac mini server running OSX 10.6 via ssh and use svn I get the message: ATTENTION! Your password for authentication realm: can only be stored to disk unencrypted! You are advised to configure your system so that Subversion…
Ben Clayton
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PHP code protector

We are about to deploy our PHP web application in different branches of our company and I am looking for PHP code encoders as to protect our PHP scripts from tampering. I know that Zend Guard is probably the most ideal tool there is, but…
Andreas Wong
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How to secure adhoc networks

What is the right way to secure adhoc networks? WPA_NONE is a cruel hack (doesn’t work most of the time, discards important packets, ..), WEP is not secure and Open… open is open. IPSec is a level to high. Does there exists something which works…
moshroum1
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What filesystem and RAID for a server syncing linux windows macOS android and iOS machines

I plan to have one master server including several HDDs (for RAID5, probably all homogeneous with 4TB each), and one remote slave server containing only one big capacity HDD, or a bunch of disks not necessarily all the same capacity. These 2 servers…
MKSwonderer
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Why AWS encryption for EBS and S3 is disabled by default?

For EBS and S3 encryption (even via the default key from KMS) is disabled by default, as I understood from the documentation, there is no difference to the user if volume/objects is/are encrypted under the hood or not. If it is true, why this option…
Andrey
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