Ionic Zip Library v1.9.1.6
UsesEncryption Property
A derived property that is true if the entry uses encryption.
Declaration Syntax
Remarks
This is a readonly property on the entry. When reading a zip file, the value for the ZipEntry is determined by the data read from the zip file. After saving a ZipFile, the value of this property for each ZipEntry indicates whether encryption was actually used (which will have been true if the Password was set and the Encryption property was something other than None.