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Does the library do AES 128 or 256 encryption?

April 26, 2017AES encryption library

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Does the library do AES 128 or 256 encryption?

2 Answers

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Yes, this was added in v1.7 of the library, in February 2009. DotNetZip’s AES encryption is compatible with the WinZip AES-encryption extension to the PKWare ZIP specification. DotNetZip uses the same FIPS-197 compliant data format and approach. If you create an AES-encrypted ZIP file with DotNetZip, you will be able to view it and extract it in WinZip, and vice versa. Also, DotNetZip’s AES will work with any other tool that is compatible with WinZip. NB: If you open an AES-encrypted ZIP file in Windows Explorer, whether generated by DotNetZip or some other tool, you will be able to view the list of files, but you won’t be able to extract entries.

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Posted

Yes. DotNetZip’s AES encryption is compatible with the WinZip AES-encryption extension to the PKWare ZIP specification. DotNetZip uses the same FIPS-197 compliant data format and approach. If you create an AES-encrypted ZIP file with DotNetZip, you will be able to view it and extract it in WinZip, and vice versa. Also, DotNetZip’s AES will work with any other tool that is compatible with WinZip. NB: If you open an AES-encrypted ZIP file in Windows Explorer, whether generated by DotNetZip or some other tool, you will be able to view the list of files, but you won’t be able to extract entries.