Symmetric Encryption: Performance Questions

Posted by cam on Stack Overflow See other posts from Stack Overflow or by cam
Published on 2010-04-04T16:52:20Z Indexed on 2010/04/04 17:13 UTC
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Does the performance of a symmetric encryption algorithm depend on the amount of data being encrypted? Suppose I have about 1000 bytes I need to send over the network rapidly, is it better to encrypt 50 bytes of data 20 times, or 1000 bytes at once? Which will be faster? Does it depend on the algorithm used? If so, what's the highest performing, most secure algorithm for amounts of data under 512 bytes?

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