Should Compression(Huffman coding) be followed by Encryption(AES) or viceversa or both options are fine?

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Sunil
Sunil on 30 May 2014
Commented: Sunil on 8 Jun 2014
Should Compression(Huffman coding) be followed by Encryption(AES) or viceversa or both options are fine?
Please let me know the pros and cons of each approach.

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Accepted Answer

Jan
Jan on 31 May 2014
The compression must be applied before the encryption. The AES encyption increases the entropy of the signal, such that a compression will not reducethe data size anymore.

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