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

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.

Answer 1

[Jan]

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.

[Sunil]

Thank you.