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How to choose an AES encryption mode (CBC ECB CTR OCB CFB)?
...used if encrypting more than one block of data with the same key.
CBC, OFB and CFB are similar, however OFB/CFB is better because you only need encryption and not decryption, which can save code space.
CTR is used if you want good parallelization (ie. speed), instead of CBC/OFB/CFB.
XTS mode is the ...
What is the difference between Google App Engine and Google Compute Engine?
...ine is a Platform-as-a-Service. It means that you simply deploy your code, and the platform does everything else for you. For example, if your app becomes very successful, App Engine will automatically create more instances to handle the increased volume.
Read more about App Engine
Compute Engine ...
What are the rules for evaluation order in Java?
I am reading some Java text and got the following code:
5 Answers
5
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List of foreign keys and the tables they reference
...o find a query which will return me a list of the foreign keys for a table and the tables and columns they reference. I am half way there with
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Defeating a Poker Bot
...e triggered by
suspicious activity.
Some poker sites monitor playing
times and patterns (i.e., worst case
scenario is a player who plays 24x7
and 16 tables continuously, there is
a tiny tiny chance this is a real
human. (However some players do have the ability to play very large hand volumes which ...
Please explain the exec() function and its family
What is the exec() function and its family? Why is this function used and how does its work?
7 Answers
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Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
...
This approach will use the actual boolean type (and resolve to true and false) if the compiler supports it. (specifically, C++)
However, it would be better to check whether C++ is in use (via the __cplusplus macro) and actually use true and false.
In a C compiler, this i...
Is multiplication and division using shift operators in C actually faster?
Multiplication and division can be achieved using bit operators, for example
19 Answers
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How should I choose an authentication library for CodeIgniter? [closed]
I see there are a few . Which ones are maintained and easy to use? What are their pros and cons?
11 Answers
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When and why are database joins expensive?
I'm doing some research into databases and I'm looking at some limitations of relational DBs.
7 Answers
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