Question

In an encryption tool I am nearly finished with, I can’t seem to write the encrypted data to a file.

Here is what I have:

    NSData *encryptedData = [data AES256EncryptWithKey:key];


    [encryptedData writeToFile:@"~/Desktop/file.txt" atomically:YES];

If ‘file.txt’ is not found, it should create it.

Thank You

Answer 1

First, -writeToFile:atomically: is the name of the method you are trying to use– not, as you have written, -writeToFile:automatically:. And second, this method should usually be avoided in favor of one that takes an out NSError parameter.

Try -writeToFile:options:error: if you’d like to be able to log a useful diagnostic when something goes wrong.