Is it safe to use UUID in URL?
A single identifier for both identification and authentication is not necessarily a bad thing. However, in most cases there is a need for an identification-only identifier – you must not use the ‘secret’ UUID in those scenarios. If a ‘crew’ consists of multiple people: you cannot revoke access for a single crew member.
Are UUID bad?
UUIDs do not reveal information about your data, so would be safer to use in a URL, for example. If I am customer 12345678, it’s easy to guess that there are customers 12345677 and 1234569, and this makes for an attack vector.
Is NanoID URL safe?
Safe. It uses cryptographically strong random APIs.
Why is NanoID replacing UUID?
It boils down to the alphabet used by the key. Since NanoID uses a larger alphabet than UUID, a shorter ID can serve the same purpose as a longer UUID.
Which is safer to pass through URL or UUID?
UUID is more safer to pass through url than integer type data. If one pass UUID through url, attackers can’t guess the next id.But if we pass Integer type such as 10, then attackers can guess the next id is 11 then 12 etc.
Which is better between Guid and UUID databases?
With sequential IDs if the most-recent data is needed the most, the hot index pages would require less RAM. UUID values are unique between tables and databases. Thats why it can be merge rows between two databases or distributed databases. UUID is more safer to pass through url than integer type data.
Why are UUID values so bad for performance?
The use of a smaller representation for the UUID values just allows more rows to fit in the buffer pool but in the long run, it doesn’t really help the performance, as the random insertion order dominates. If you are using random UUID values as primary keys, your performance is limited by the amount of memory you can afford.
How are integer values compared to UUID values?
Integer values are compared up to 8 bytes at a time by the CPU but UUID values are compared char per char. Databases are rarely CPU bound, but nevertheless this adds to the latencies of the queries. If you are not convinced, look at this performance comparison between integers vs strings: