Credits
I would like to point out that the OpenSSL Swift Package developed by @krzyzanowskim has been used to carry out some more complex security operations.
In addition, I would like to mention the NFCPassportReader repo developed by @AndyQ. I studied it as well as the ICAO Doc 9303 to be able to develop the NFCPassportReader package.
Lastly, I would like to say that the ASN.1 module has been extracted and manipulated as needed from swift-asn1 developed by @apple.