diff --git a/docs/detailed-design.md b/docs/detailed-design.md
index 16e8a06..40a8880 100644
--- a/docs/detailed-design.md
+++ b/docs/detailed-design.md
@@ -82,11 +82,6 @@ group /v1/content/apply POST
 
 client -> apiserver: apply content configuration
 
-activate externalservice
-apiserver -> externalservice: request credentials validation
-externalservice --> apiserver : validation result
-deactivate externalservice
-
 activate localstorage
 apiserver -> localstorage: apply provided user configuration
 localstorage -> apiserver: user configuration update result
@@ -105,9 +100,9 @@ deactivate localstorage
 
 end group
 
-group /v1/content/upload POST
+group /v1/content/object/upload POST
 
-client -> apiserver: upload object
+client -> apiserver: upload content object
 
 activate temporatestorage
 apiserver ->> temporatestorage: schedule object upload
@@ -115,33 +110,41 @@ deactivate temporatestorage
 
 end group
 
-group /v1/content/download POST
+group /v1/content/object/download POST
 
-client -> apiserver: download selected object
+client -> apiserver: download selected content object
 
-alt if the object is still not processed
+alt if the content object is still not processed
 
 activate temporatestorage
-apiserver -> temporatestorage: request object
-temporatestorage --> apiserver : retrieved object
+apiserver -> temporatestorage: request content object
+temporatestorage --> apiserver : retrieved content object
 deactivate temporatestorage
 
 else
 
 activate externalservice
-apiserver -> externalservice: request object
-externalservice --> apiserver : retrieved object
+apiserver -> externalservice: request content object
+externalservice --> apiserver : retrieved content object
 deactivate externalservice
 
 end
 
-apiserver --> client: downloaded object
+apiserver --> client: downloaded content object
+
+end group
+
+group /v1/content/backup/download POST
+
+client -> apiserver: download selected content backup
+
+apiserver --> client: downloaded content backup
 
 end group
 
-group /v1/content/clean DELETE
+group /v1/content/object/clean DELETE
 
-client -> apiserver: clean selected content
+client -> apiserver: clean selected content object
 
 opt if any object is still not processed
 
@@ -181,6 +184,19 @@ end group
 
 end box
 
+group /v1/secrets/acquire POST
+
+client -> apiserver: create jwt token
+
+activate externalservice
+apiserver -> externalservice: verify given secrets
+externalservice -> apiserver: result of verification
+deactivate externalservice
+
+apiserver --> client: created jwt token
+
+end group
+
 group /v1/health GET
 client -> apiserver: retrieve health info
 apiserver --> client: retrieved health info
diff --git a/docs/detailed-design.png b/docs/detailed-design.png
index 3e2c7dd..b557791 100644
Binary files a/docs/detailed-design.png and b/docs/detailed-design.png differ
diff --git a/docs/internal-database-design.md b/docs/internal-database-design.md
index 03568f5..56fb918 100644
--- a/docs/internal-database-design.md
+++ b/docs/internal-database-design.md
@@ -33,7 +33,9 @@ entity "temporate" {
     *provider : number <<FK>> # provider(id)
     *secret : number <<FK>> # secret(id)
     --
+    location : varchar
     hash : varchar
+    created_at : number
 }
 
 content ||...|| secret #magenta : attached to
diff --git a/docs/internal-database-design.png b/docs/internal-database-design.png
index c733a54..07c1873 100644
Binary files a/docs/internal-database-design.png and b/docs/internal-database-design.png differ