Validating password protected ZIP files

Question

I'm packing ZIP files using Zip4j. Sometimes, the created ZIP file seems to be (uploaded) corrupted via FTP so I would like to validate it.

The code snippets from here don't work because they cause an exception on password protected archives by default since the default Java ZipFile doesn't support password protections.

score 1 · Accepted Answer · answered Jun 24 '17 at 19:18

1

How about the usual hash validation?

Create your ZIP
Calculate its md5 (DigestUtils from commons-digest may be used)
Upload the ZIP
Upload the hash in a text file
On the receiving side, rehash it with md5 and compare with the received MD5

answered Jun 24 '17 at 19:18

Roman Puchkovskiy

11,415
5
36
72

Validating password protected ZIP files

1 Answers1