Regarding Private key

[manmeet Singh <mannirulz30 () yahoo com>]

Hi all,
I am facing a very tedious probelm. I want to know what the various options and how secure are these options.

I have a file that contains plaintext.I have to read that file and after first read , encrypt it(AES) and delete the 
plain text file and save the encryped file.On subsequent reboots, i have to read decrypted text.

Now the question is How do i manage the AES key?
Storing the AES key/IV in file is one option? (Isnt It same as storing the plain key assuming i dont have any secure 
storage)
Hard code  the AES Key/IV values  in the code?
What other options are possible. ?


Warm Regards,
Manmeet Singh




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