Creating Heimdall object and Encryption returning null

[croftt]

Hello,

I have been trying to use your library to create and use public keys from another device that is using the X509 protocol. However I was attempting to create a heimdall object with just a tag so that I could ensure that it works, i instantiated like so:

if let heimdall = Heimdall(publicTag: "com.1066203")

however it returns null, I tried different tags and only a few times could I actually create the object (could not decipher which ones worked because they would not work if ran again). However when I did create the object the encryption method also returned false, I tried to regenerate the key as well. implemented like so:

let testString = "This is a test string"
heimdall.regenerate(1024)

        // Encryption/Decryption
        if let encryptedString = heimdall.encrypt(testString) {
            print(encryptedString) // "cQzaQCQLhAWqkDyPoHnPrpsVh..."

            if let decryptedString = heimdall.decrypt(encryptedString) {
                print(decryptedString) // "This is a test string"
            } else
            {
                print("did not decrypt")
            }
        } else
        {
            print("did not encrypt")
        }

Using breakpoints and the debugger I narrowed it down to the method:

private class func obtainKeyData(tag: String) -> NSData?

always returning nil, and I could not figure out why that is the case. I am relatively new to iOS so hopefully I am just doing something wrong but if not i'd appreciate you taking a look and seeing what could be going wrong. If you would like any other information I will happily give it

[jorystiefel]

@croftt Are you by chance on Xcode 8 Beta? I'm having this issue on Xcode 8 but not 7.

obtainKeyData(...) returning null

[tcsdeveloperssc]

I am not using the beta. But if I am the only one it is not working for I imagine I am doing something wrong so you should consider this low priority

[hools]

adding Keychain sharing in app capabilities made problem go away (Xcode 8, Swift 3, iOS 10)