/** 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"); * --- */ module tango.util.uuid.NamespaceGenV3; public import tango.util.uuid.Uuid; import tango.util.digest.Md5; /** Generates a UUID as described above. */ Uuid newUuid(Uuid namespace, char[] name) { return Uuid.byName(namespace, name, new Md5, cast(ubyte)3); }