This documentation refers to an earlier version of Islandora. https://wiki.duraspace.org/display/ISLANDORA/Start is current.

Overview

A simple module to allow repository managers to enable the creation of a checksum for objects. If enabled, the following checksum algorithms are available: MD5, SHA-1, SHA-256, SHA-384, SHA-512.

This will checksum all datastreams.

Dependencies

Downloads

Release Notes and Downloads

Installation

Unzip this module into your site's modules directory as you would any other contrib module. See this for further information.

 

Configuration

Enable and set checksum type in Administration » Islandora » Islandora Utility Modules » Checksum (admin/islandora/tools/checksum). To retroactively enable or modify checksums for all objects in a collection, enable and set checksum type if you have not already done so, choose a collection, and click on the 'Apply' button.

Derivative generation can be bypassed when updating only the checksumType of an object. This applies to any modules that may modify the checksumType of the object, or to objects being updated via the "Apply or Re-Apply" batch process.

Usage

Once checksums are enabled and a checksum type is set, configured datastreams will automatically be given the appropriate datastreams.

 

A drush command exists, islandora-checksum-update-checksums, to run the checksum updater on a collection or multiple collections. Use drush help icuc for more details.

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