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Go UUID implementation

Build Status GoDoc

This package provides RFC 4122 compliant UUIDs. It will generate the following:

  • Version 1: based on timestamp and MAC address
  • Version 3: based on MD5 hash
  • Version 4: based on crytographically secure random numbers
  • Version 5: based on SHA-1 hash

Functions NewV1, NewV3, NewV4, NewV5, New, NewHex and ParseUUID() for generating versions 3, 4 and 5 UUIDs are as specified in RFC 4122.

Requirements

Go 1.2 and tip supported.

Recent Changes to original work by nu7hatch

  • Varient type bits are now set correctly
  • Varient type can now be retrieved more efficiently
  • New tests for variant setting to confirm correctness
  • New tests added to confirm proper version setting
  • Type UUID change to UUIDArray for V3-5 UUIDS and UUIDStruct added for V1 UUIDs ** These implement the BinaryMarshaller and BinaryUnmarshaller interfaces
  • New was added to create a base UUID from a []byte slice - this uses UUIDArray
  • ParseHex was renamed to ParseUUID
  • NewHex now performs unsafe creation of UUID from a hex string
  • NewV3 and NewV5 now take anything that implements the Stringer interface
  • V1 UUIDs can now be created
  • The printing format can be changed

Installation

Use the go tool:

$ go get github.com/twinj/uuid

Usage

See documentation and examples for more information.

Copyright

This is a derivative work

Orginal version from Copyright (C) 2011 by Krzysztof Kowalik [email protected]. See COPYING file for details.

Also see: Algorithm details in RFC 4122.

Copyright (C) 2014 [email protected] See LICENSE file for details.

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A Go RFC4122 UUID implementation

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