gohugoio-hugo/docs/content/en/hugo-pipes/fingerprint.md

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title	description	date	publishdate	lastmod	categories	keywords	menu	weight	sections_weight	draft
Fingerprinting and SRI	Hugo Pipes allows Fingerprinting and Subresource Integrity.	2018-07-14	2018-07-14	2018-07-14	asset management		docs parent weight pipes 70	70	70	false

Fingerprinting and SRI can be applied to any asset file using resources.Fingerprint which takes two arguments, the resource object and a hash function.

The default hash function is sha256. Other available functions are sha384 (from Hugo 0.55), sha512 and md5.

Any so processed asset will bear a .Data.Integrity property containing an integrity string, which is made up of the name of the hash function, one hyphen and the base64-encoded hash sum.

{{ $js := resources.Get "js/global.js" }}
{{ $secureJS := $js | resources.Fingerprint "sha512" }}
<script type="text/javascript" src="{{ $secureJS.Permalink }}" integrity="{{ $secureJS.Data.Integrity }}"></script>