v0.4.0

TimeOrdered functionv0.1.0

Source
A version 7 UUID: the current time in its leading bits, entropy in the rest.
pub func TimeOrdered() -> Uuid ! EntropyError

Fails with why entropy was unavailable rather than producing a timestamp-shaped value with no randomness — which would be guessable and would look fine.

Returns: a version 7 value carrying the current time, or why entropy was unavailable

Related

TimeOrderedAt

pub func TimeOrderedAt(milliseconds: uint64) -> Uuid ! EntropyError

A version 7 UUID for a given millisecond, with entropy in the rest. For reproducing an identifier from a recorded time, and for testing.

Source

Parameters

NameTypeDescription
millisecondsuint64the timestamp to embed, in milliseconds since the Unix epoch

Returns: a version 7 value carrying milliseconds, or why entropy was unavailable

MillisecondOf

pub func MillisecondOf(value: &Uuid) -> uint64

The millisecond a version 7 UUID carries. Meaningless for any other version, which is why the version should be checked first.

Source

Parameters

NameTypeDescription
value&Uuidthe value to act on

Returns: the timestamp a version 7 value carries; meaningless for any other version

Text form

Reading and writing a UUID in its canonical and URN text forms.

Overview

Cryptographic hashes, message authentication codes and key derivation

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