30 lines
825 B
Markdown
30 lines
825 B
Markdown
|
---
|
||
|
|
layout: "functions"
|
||
|
|
page_title: "sha256 function"
|
||
|
|
sidebar_current: "docs-funcs-crypto-sha256"
|
||
|
|
description: |-
|
||
|
|
The sha256 function computes the SHA256 hash of a given string and encodes it
|
||
|
|
with hexadecimal digits.
|
||
|
|
---
|
||
|
|
|
||
|
|
# `sha256` Function
|
||
|
|
|
||
|
|
`sha256` computes the SHA256 hash of a given string and encodes it with
|
||
|
|
hexadecimal digits.
|
||
|
|
|
||
|
|
The given string is first encoded as UTF-8 and then the SHA256 algorithm is applied
|
||
|
|
as defined in [RFC 4634](https://tools.ietf.org/html/rfc4634). The raw hash is
|
||
|
|
then encoded to lowercase hexadecimal digits before returning.
|
||
|
|
|
||
|
|
## Examples
|
||
|
|
|
||
|
|
```
|
||
|
|
> sha256("hello world")
|
||
|
|
b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9
|
||
|
|
```
|
||
|
|
|
||
|
|
## Related Functions
|
||
|
|
|
||
|
|
* [`base64sha256`](./base64sha256.html) calculates the same hash but returns
|
||
|
|
the result in a more-compact Base64 encoding.
|