2018-05-13 22:48:45 +02:00
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---
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layout: "functions"
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2018-12-20 05:35:11 +01:00
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page_title: "sha256 - Functions - Configuration Language"
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2018-05-13 22:48:45 +02:00
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sidebar_current: "docs-funcs-crypto-sha256"
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description: |-
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The sha256 function computes the SHA256 hash of a given string and encodes it
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with hexadecimal digits.
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---
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# `sha256` Function
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`sha256` computes the SHA256 hash of a given string and encodes it with
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hexadecimal digits.
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The given string is first encoded as UTF-8 and then the SHA256 algorithm is applied
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as defined in [RFC 4634](https://tools.ietf.org/html/rfc4634). The raw hash is
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then encoded to lowercase hexadecimal digits before returning.
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## Examples
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```
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> sha256("hello world")
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b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9
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```
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## Related Functions
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* [`base64sha256`](./base64sha256.html) calculates the same hash but returns
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the result in a more-compact Base64 encoding.
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