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TZipFile with Password Encryption (Part 3)

The Art of Delphi Programming – In the comments of the last blog post about encrypted zip files several people encountered problems with zip files encrypted with the shown sources. Well, I have to apologize: this actually cannot work with the sources provided due to some suboptimal behavior of TZipFile. Its current implementation calculates the CRC32 value after encrypting the data. For that the CRC32 value used for encryption is simply incorrect. The reason why this slipped through is damn simple: As my first approach was implementing this feature in the original sources, I changed this right in the beginning and later ...
Favorite? Off-Topic? Uwe Raabe @ 2017-05-07 15:05

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