UUIDs explained¶
- Universal Unique ID
- aka GUID
- Global Unique ID
| id | forma_id | accessor_id |
|---|---|---|
| 1 | user's ID | manager's manager's ID |
| 2 | 3 | 4 |
TLDR
- use v4 unless there's specific scenarios
UUID v1¶
- MAC address + current datetime
71226380-06c0-11ed-8d75-e9e11a03a4b7
- UUID v1 generated a few seconds later
7c2e73e0-06c0-11ed-8d75-e9e11a03a4b7
- guarantee that there's random
- really nice for database indexing
UUID v4¶
- random numbers
- unlikely there's a conflict (2^128)
UUID v5¶
UUIDv5(namespace_uuid, text)
avoiding rainbow table attacks by using UUIDv5 as a salt for passwords
Last update:
2023-04-24