| ??? 07/15/12 01:57 Modified: 07/15/12 02:00 Read: times |
#187940 - The eeprom doesnt hold the password Responding to: ???'s previous message |
It holds a hash of the password, that way if someone reads the eeprom they cannot find out the password.
So your system has to do a hash of the password entered by the user and compare it to the password hash stored in the eeprom. possible hashes are SHA or MD4 also increasing the password length by one bit doubles the password search space, and you should limit the number of attempts you can make in one session. |
| Topic | Author | Date |
| Password in EEPROM | 01/01/70 00:00 | |
| Checksum | 01/01/70 00:00 | |
| 8-digit code | 01/01/70 00:00 | |
| Master Code | 01/01/70 00:00 | |
| So what does the requirements spec say? | 01/01/70 00:00 | |
| master codes .... | 01/01/70 00:00 | |
| This is a low-security lock - or no measly 4-digit PIN | 01/01/70 00:00 | |
| language | 01/01/70 00:00 | |
| just a thought | 01/01/70 00:00 | |
| Never give access when locked | 01/01/70 00:00 | |
| PIN + PUK | 01/01/70 00:00 | |
| The eeprom doesnt hold the password | 01/01/70 00:00 | |
High/low security | 01/01/70 00:00 |