# Checksum
{% hint style="info" %}
You can easily import all the functions from the `checksum` registry by including the following import statement in your code
```go
import "github.com/go-sprout/sprout/registry/checksum"
```
{% endhint %}
### sha1Sum
SHA1sum calculates the SHA-1 hash of the input string and returns it as a hexadecimal encoded string.
| Name | Value |
|---|
| Signature | SHA1Sum(input string) string
|
{% tabs %}
{% tab title="Template Example" %}
{{ sha1Sum "" }} // Output: da39a3ee5e6b4b0d3255bfef95601890afd80709
{{ sha1Sum "Hello, World!" }} // Output: 0a0a9f2a6772942557ab5355d76af442f8f65e01
{% endtab %}
{% endtabs %}
### sha256Sum
SHA256sum calculates the SHA-256 hash of the input string and returns it as a hexadecimal encoded string.
| Name | Value |
|---|
| Signature | SHA256Sum(input string) string
|
{% tabs %}
{% tab title="Template Example" %}
```go
{{ sha256Sum "" }} // Output: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
{{ sha256Sum "Hello, World!" }} // Output: dffd6021bb2bd5b0af676290809ec3a53191dd81c7f70a4b28688a362182986f
```
{% endtab %}
{% endtabs %}
### sha512Sum
SHA512sum calculates the SHA-512 hash of the input string and returns it as a hexadecimal encoded string.
| Name | Value |
|---|
| Signature | SHA512Sum(input string) string
|
{% tabs %}
{% tab title="Template Example" %}
```go
{{ sha512Sum "" }} // Output: cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
{{ sha512Sum "Hello, World!" }} // Output: 374d794a95cdcfd8b35993185fef9ba368f160d8daf432d08ba9f1ed1e5abe6cc69291e0fa2fe0006a52570ef18c19def4e617c33ce52ef0a6e5fbe318cb0387
```
{% endtab %}
{% endtabs %}
### adler32Sum
Adler32Sum calculates the Adler-32 checksum of the input string and returns it as a hexadecimal encoded string.
| Name | Value |
|---|
| Signature | Adler32Sum(input string) string
|
{% tabs %}
{% tab title="Tempalte Example" %}
```go
{{ adler32Sum "" }} // Output: 00000001
{{ adler32Sum "Hello, World!" }} // Output: 1f9e046a
```
{% endtab %}
{% endtabs %}
### md5Sum
MD5sum calculates the MD5 hash of the input string and returns it as a hexadecimal encoded string.
| Name | Value |
|---|
| Signature | MD5Sum(input string) string
|
{% tabs %}
{% tab title="Template Example" %}
```go
{{ md5Sum "" }} // Output: d41d8cd98f00b204e9800998ecf8427e
{{ md5Sum "Hello, World!" }} // Output: 65a8e27d8879283831b664bd8b7f0ad4
```
{% endtab %}
{% endtabs %}
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.atom.codes/sprout/~/changes/1eETtqCYtVeEPVLnbGs0/registries/checksum.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.