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Bjørn Erik Pedersen
2023-05-22 16:47:07 +02:00
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docs/content/en/hugo-pipes/fingerprint.md
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---
title: Fingerprinting and SRI
description: Hugo Pipes allows Fingerprinting and Subresource Integrity.
date: 2018-07-14
publishdate: 2018-07-14
title: Fingerprint
linkTitle: Fingerprinting and SRI
description: Process a given resource, adding a hash string of the resource's content.
categories: [asset management]
keywords: []
menu:
docs:
parent: "pipes"
parent: pipes
weight: 70
weight: 70
sections_weight: 70
signature: ["resources.Fingerprint RESOURCE [ALGORITHM]", "fingerprint RESOURCE [ALGORITHM]"]
---
Fingerprinting and [SRI](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity) can be applied to any asset file using `resources.Fingerprint` which takes two arguments, the resource object and a [hash function](https://en.wikipedia.org/wiki/Cryptographic_hash_function).
## Usage
The default hash function is `sha256`. Other available functions are `sha384` (from Hugo `0.55`), `sha512` and `md5`.
Fingerprinting and [SRI](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity) can be applied to any asset file using `resources.Fingerprint` which takes two arguments, the resource object and an optional [hash algorithm](https://en.wikipedia.org/wiki/Secure_Hash_Algorithms).
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.
The default hash algorithm is `sha256`. Other available algorithms are `sha384` and (as of 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 algorithm, one hyphen and the base64-encoded hash sum.
```go-html-template
{{ $js := resources.Get "js/global.js" }}