Ionic Zip Library v1.9.1.6
CheckZipPassword Method (zipFileName, password)
Verify the password on a zip file.
Declaration Syntax
Return Valuea bool indicating whether the password matches.
RemarksKeep in mind that passwords in zipfiles are applied to zip entries, not to the entire zip file. So testing a zipfile for a particular password doesn't work in the general case. On the other hand, it's often the case that a single password will be used on all entries in a zip file. This method works for that case.
There is no way to check a password without doing the decryption. So this code decrypts and extracts the given zipfile into Null