Add namespace for hash functions

content/en/functions/crypto/FNV32a.md

@@ -1,21 +1,26 @@
 ---
 title: crypto.FNV32a
-description: Returns the FNV (Fowler–Noll–Vo) 32-bit hash of a given string.
+description: Returns the 32-bit FNV (Fowler–Noll–Vo) non-cryptographic hash of the given string.
 categories: []
 keywords: []
 action:
   aliases: []
   related:
+    - functions/hash/Xxhash
     - functions/crypto/HMAC
     - functions/crypto/MD5
     - functions/crypto/SHA1
     - functions/crypto/SHA256
   returnType: int
   signatures: [crypto.FNV32a STRING]
-aliases: [/functions/crypto.fnv32a]
+expiryDate: 2025-07-31 # deprecated 2024-07-31
 ---
 
-This function calculates the 32-bit [FNV1a hash](https://en.wikipedia.org/wiki/Fowler%E2%80%93Noll%E2%80%93Vo_hash_function#FNV-1a_hash) of a given string according to the [specification](https://datatracker.ietf.org/doc/html/draft-eastlake-fnv-12):
+{{% deprecated-in 0.129.0 %}}
+Use [`hash.FNV32a`] instead.
+
+[`hash.FNV32a`]: /functions/hash/FNV32a/
+{{% /deprecated-in %}}
 
 ```go-html-template
 {{ crypto.FNV32a "Hello world" }} → 1498229191

content/en/functions/hash/FNV32a.md

@@ -0,0 +1,21 @@
+---
+title: hash.FNV32a
+description: Returns the 32-bit FNV (Fowler–Noll–Vo) non-cryptographic hash of the given string.
+categories: []
+keywords: []
+action:
+  aliases: []
+  related:
+    - functions/hash/Xxhash
+    - functions/crypto/HMAC
+    - functions/crypto/MD5
+    - functions/crypto/SHA1
+    - functions/crypto/SHA256
+  returnType: int
+  signatures: [hash.FNV32a STRING]
+aliases: [/functions/crypto.fnv32a]
+---
+
+```go-html-template
+{{ hash.FNV32a "Hello world" }} → 1498229191
+```

content/en/functions/hash/XxHash.md

@@ -0,0 +1,20 @@
+---
+title: hash.XxHash
+description: Returns the 64-bit xxHash non-cryptographic hash of the given string.
+categories: []
+keywords: []
+action:
+  aliases: []
+  related:
+    - functions/hash/FNV32a
+    - functions/crypto/HMAC
+    - functions/crypto/MD5
+    - functions/crypto/SHA1
+    - functions/crypto/SHA256
+  returnType: string
+  signatures: [hash.XxHash STRING]
+---
+
+```go-html-template
+{{ hash.XxHash "Hello world" }} → c500b0c912b376d8
+```

content/en/functions/hash/_index.md

@@ -0,0 +1,12 @@
+---
+title: Hash functions
+linkTitle: hash
+description: Template functions to create non-cryptographic hashes.
+categories: []
+keywords: []
+menu:
+  docs:
+    parent: functions
+---
+
+Use these functions to create non-cryptographic hashes.