diff --git a/src/item_explanation.md b/src/item_explanation.md
index 68726e4..19d5af1 100644
--- a/src/item_explanation.md
+++ b/src/item_explanation.md
@@ -4,7 +4,7 @@ All following requests can only read the uploaded data.
 
 To use the build-in link-shortener functionality you have to POST the URL with Content-Type: text/x-uri or Content-Type: text/uri-list.
 
-To change the default expiration date, you can use the `?ttl=` parameter. It supports durations like `60s`, `60m`, `24h`, `30d`, `12M`, `1y` or iso dates like `1970-01-01T00:00:00` in UTC timezone.  
+To change the default expiration date of one month, you can use the `?ttl=` parameter. It supports durations like `60s`, `60m`, `24h`, `30d`, `12M`, `1y` or iso dates like `1970-01-01T00:00:00` in UTC timezone.  
 
 ## Upload a link
 `$ curl -H "Content-Type: text/x-uri" --data "https://example.com" <bin_url>`
@@ -19,8 +19,11 @@ To change the default expiration date, you can use the `?ttl=` parameter. It sup
 `$ tar -cz my-files* | curl -X POST -H "Content-Type: application/gzip" -T - <bin_url>`
 
 ## Enryption
-`$ tar -cz my-files | gpg -c | curl -X POST -H "Content-Type: application/octet-stream" -T - <bin_url>`
-`$ curl <bin_url> | gpg -d - | tar -xzf`
+```
+$ tar -cz my-files | gpg -co tmp.tar.gz
+$ curl -X POST -H "Content-Type: application/octet-stream" -T tmp.tar.gz <bin_url>
+$ curl <bin_url> | gpg -d - | tar -xzf
+```
 
 ## Accessing the data
 After uploading data you can access it by accessing <bin_url> with an optional file extension that suits the data that you uploaded.
diff --git a/src/openid.rs b/src/openid.rs
index 17dcc83..6cd017f 100644
--- a/src/openid.rs
+++ b/src/openid.rs
@@ -185,7 +185,7 @@ pub async fn handle_callback(
 
     let id = rand::thread_rng()
         .sample_iter(Alphanumeric)
-        .take(16)
+        .take(8)
         .map(char::from)
         .collect::<String>();