tango.util.uuid.NamespaceGenV3

Generate a UUID according to version 3 of RFC 4122.

These UUIDs are generated in a consistent, repeatable fashion. If you generate a version 3 UUID once, it will be the same as the next time you generate it.

To create a version 3 UUID, you need a namespace UUID, generated in some reasonable fashion. This is hashed with a name that you provide to generate the UUID. So while you can easily map names to UUIDs, the reverse mapping will require a lookup of some sort.

This module publicly imports Uuid, so you don't have to import both if you are generating version 3 UUIDs. Also, this module is just provided for convenience -- you can use the method Uuid.byName if you already have an appropriate digest.

Version 3 UUIDs use MD5 as the hash function. You may prefer to use version 5 UUIDs instead, which use SHA-1.

To use this module:

import tango.util.uuid.NamespaceGenV3;
auto dnsNamespace = Uuid.parse("6ba7b810-9dad-11d1-80b4-00c04fd430c8");
auto uuid = newUuid(namespace, "rainbow.flotilla.example.org");