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Question:

base64zipped - is possible unzip with third part software ?

Sep 24 '14 at 10:59

I've base64zipped a content of xml. After decode the base64zipped, is possible unzip with third part software (winrar, 7-zip or online software) ? Thank you!

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Answer

I would need more information as to exactly how the base64 "zipped" content was created. What Chilkat objects were used, and which methods?

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Answer

Yes, chilkat objects and methods.

Chilkat.Xml allegati = new Chilkat.Xml(); Chilkat.Xml attachment=allegati.NewChild("Attachment", string.Empty); attachment.SetBinaryContentFromFile(attachmentpath, true, false, null)

Thank you!

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Answer

No, because the compressed data embedded in the XML (and base64 encoded) is just the output of the deflate compression algorithm. It wouldn't make sense to compress it to a binary image of a zip archive because then it would need to include all of the Zip local file headers, central directory, etc. and the overhead wouldn't make sense.

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Answer

Then to unzip the base64zipped, chilkat should I use. Is correct ?

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Answer

What speaks against using chilkat to unzip it? IMHO best option if created with chilkat.

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Answer

You could use Chilkat.Xml, or Chilkat.Compression (with the deflate algorithm), or you could base64 decode and use zlib in C/C++, or something similar. There is nothing Chilkat-specific about the compressed data -- it is just the output of the "deflate" compression algorithm, which is then base64 encoded.