mirror of
https://github.com/odin-lang/Odin.git
synced 2026-05-28 22:55:09 +00:00
47 lines
1.3 KiB
Odin
47 lines
1.3 KiB
Odin
/*
|
|
Universally Unique Identifiers (`UUID`) according to `RFC 4122`, with additions from `RFC 9562`.
|
|
|
|
The UUIDs are textually represented and read in the following string format:
|
|
`00000000-0000-v000-V000-000000000000`
|
|
|
|
`v` is where the version bits reside, and `V` is where the variant bits reside.
|
|
The meaning of the other bits is version-dependent.
|
|
|
|
Outside of string representations, UUIDs are represented in memory by a 128-bit
|
|
structure organized as an array of 16 bytes.
|
|
|
|
|
|
Of the UUID versions which may make use of random number generation, a
|
|
requirement is placed upon them that the underlying generator be
|
|
cryptographically-secure, per RFC 9562's suggestion.
|
|
|
|
- Version 1 without a node argument.
|
|
- Version 4 in all cases.
|
|
- Version 6 without either a clock or node argument.
|
|
- Version 7 in all cases.
|
|
|
|
Example:
|
|
package main
|
|
|
|
import "core:crypto"
|
|
import "core:encoding/uuid"
|
|
|
|
main :: proc() {
|
|
my_uuid: uuid.Identifier
|
|
|
|
{
|
|
// This scope will have a CSPRNG.
|
|
context.random_generator = crypto.random_generator()
|
|
my_uuid = uuid.generate_v7()
|
|
}
|
|
|
|
// Back to the default random number generator.
|
|
}
|
|
|
|
|
|
For more information on the specifications, see here:
|
|
- [[ https://www.rfc-editor.org/rfc/rfc4122.html ]]
|
|
- [[ https://www.rfc-editor.org/rfc/rfc9562.html ]]
|
|
*/
|
|
package uuid
|