| ??? 02/25/08 21:05 Modified: 02/25/08 21:13 Read: times |
#151448 - It is not THAT important Responding to: ???'s previous message |
I would like to be able to allow firmware downloading over the internet, but need the file to be encrypted using DES or AES encryption to be decrypted by a secure bootloader.
Have you ever tried to reconstruct something from a .hex file? you are far better off starting from scratch. Of course, if you have security info or some such thing, the story differ, pray tell why you want this. I'm surprised that this isn't more popular which makes me also wonder if I'm missing something about secure IAP. Is there an easier solution that I'm not aware of? NOTHING, whatever you do, is totally 'secure' once it has been on the internet. Our code is not on the internet, nevertheless if our competition were bandits, they would have our .hex code by now (maybe they do) but I would, if I worked for them, not see any value thereof. Also, it is (according to many sources) only a matter of paying someone a k or less to get a 'secured' uC read out. If you are this paranoid (whether you need to be or not), then have a look at the Dallas "secure micro" Erik |
| Topic | Author | Date |
| Secure IAP (In Application Programming) | 01/01/70 00:00 | |
| It is not THAT important | 01/01/70 00:00 | |
| Encryption | 01/01/70 00:00 | |
| not necessarily | 01/01/70 00:00 | |
| 2 minutes? | 01/01/70 00:00 | |
| Encryption worth it? | 01/01/70 00:00 | |
| the philosophical thread continued | 01/01/70 00:00 | |
if you want to make it really painful ... | 01/01/70 00:00 | |
| ansered by e-mail | 01/01/70 00:00 | |
| the balancing act | 01/01/70 00:00 | |
| there is little difference... | 01/01/70 00:00 | |
| bootloader | 01/01/70 00:00 | |
| On a SiLabs F02x or similar | 01/01/70 00:00 | |
| it's the same on other derivatives, too... | 01/01/70 00:00 |