javax.crypto AES encryption - Do I only need to call doFinal?

Posted by Spines on Stack Overflow See other posts from Stack Overflow or by Spines
Published on 2010-03-12T20:58:04Z Indexed on 2010/03/12 21:17 UTC
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java

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encryption

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aes

I want to do AES CBC encryption in Java. I'm using javax.crypto. After I have the Cipher initialized, do I only need to call doFinal on the clear bytes to properly encrypt it? Or do I need to do something with update?

Documentation says update:

Continues a multiple-part encryption or decryption operation

and doFinal

Encrypts or decrypts data in a single-part operation, or finishes a multiple-part operation

what exactly do they mean by multiple-part encryption?

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