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After having searched for the "correct" way of doing this, I came across this post : How do I get a pointer to self.
Great, I thought, so I put in place the solution which was stated to work :
func ptrToSelf() -> UnsafeMutableRawPointer {
var mySelf = self
return UnsafeMutableRawPointer(&mySelf)
}
And it works ! Super !
However, I am getting this warning :
Initialization of 'UnsafeMutableRawPointer' results in a dangling pointer
I looked again at the post and saw that Quinn had referenced another one ... but it is no longer available.
So, my obvious question here - for it is worrying me - is this a real problem ?
Is there another way of getting a pointer to self which is more 'secure' ?
Post not yet marked as solved
I have a private document format for which I need to be able to draw the contents into a custom view.
I have seen that we can create a custom UIView and "plug" it into a SwiftUI app.
However, I have not been able to find how to insert the view into a scrollview and
correctly size it's height depending on the size of the document to be displayed.
request a redraw/layout on document size changes
In addition, I would need to know which functions should be overridden so that putting the view into a SwiftUI ScrollView will integrate correctly.
This will represent a graphical document for which the existing SwiftUI/UIView objects are not suited.
Where can I find the necessary information for doing this, please ?
Post not yet marked as solved
I am needing to calculate the crc32 value for a file which my app will download from the apps server.
This is to ensure that I have got the correct file (avoid middle man attacks).
However, my searches on the web has revealed nothing that can be done from within swift.
I am surprised as this would appear to be a basic need - even if other algorithms are being used as well.
Can I be pointed in the right direction for this ?
I am porting my Android app over to iOS and need to integrate encryption for communication with an existing server.
I need to be able to use AES-CBC and RSA-ECB.
My research has led me to the CommonCrypto library, but I have been stuck on this for days now, not finding how to integrate the library into my XCode project.
I am using XCode version 12.2 (not sure what version of swift comes with that though).
The methods I have tried to get CommonCrypto into the project are adding import CommonCrypto into the swift file, or adding #import <CommonCrypto/CommonCrypto.h> into the bridging header. Both of these makes XCode complain saying it cannot compile the Obective-C module.
In addition, I have not been able to find documentation explaining the correct way of using the library.
I need to :
Generate public and private keys for AES
Generate public and private keys for RSA
Encrypt and decrypt with AES-CBC with PKCS5 padding
Encrypt and decrypt with RSA-EBC with PKCS1 padding
Please note that I cannot change the encryption standards used.
Should I stick with CommonCrypto, go with OpenSSL, another fairly future proof solution ?
I would really appreciate help and guidance with this, please.
(Sorry, could not find any better tags)
SimonInFrance.