On Oct 23, 7:23 pm, lbcoder <[email protected]> wrote: > As I said, the expiry date is encrypted in the key. > > So you take a string "IMEI# + expiry date", and encrypt that using > your private key. > The client software will DECRYPT that using the PUBLIC key, which is > in some resource file in the phone.
Ah, and I gather that the key is sent to the device from somewhere else. It's not actually clear from any of your posts where said key is generated, but I can infer that if it was generated on-device, it could only know about the date that it was installed, and thus would be reset by a reinstall. Which is no different than my scheme, fundamentally, although probably harder to crack due to the encryption. There's still a data source outside the handset - in your case, generating the key - and that was my point. String --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Discuss" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-discuss?hl=en -~----------~----~----~----~------~----~------~--~---
