adhoc-network-1.0.3: Ad-hoc P2P network protocol Source code Contents Index

Network.AdHoc.MessageID Maintainer Stephan Friedrichs, Henning Guenther

Description

Synopsis

type MessageID = String type MessageIDGenerator g = g -> [MessageID] counter :: MessageIDGenerator g scrambler :: RandomGen g => Int -> MessageIDGenerator g hasher :: RandomGen g => MessageIDGenerator g

Documentation

type MessageID = String Source

This is just a String.

type MessageIDGenerator g = g -> [MessageID] Source

Generate an infinite(!) stream of MessageIDs.

counter :: MessageIDGenerator g Source

Simplest possible generator type: counts from 0 upwards. Very insecure.

scrambler :: RandomGen g => Int -> MessageIDGenerator g Source

Generates a stream of MessageIDs by shuffling a sorted stream couting from 0 upwards ([0..]). scrambler n g would randomly remove the i-th element (where i is a random number between 0 and n) from the sorted list and place it at the head of the result list. It deals with the following elements in the same way.

hasher :: RandomGen g => MessageIDGenerator g Source

Generates a stream of IDs by hashing an up-counting number and a random number with SHA512.

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