Support plaintext sk

Author: Bennett Hardwick

src/crypto/sealed.rs

@@ -56,10 +56,15 @@ impl Sealed {
         let unprotected = T::plaintext_attributes()
             .into_iter()
             .map(|name| {
+                let attr = match name {
+                    "sk" => "__sk",
+                    _ => name,
+                };
+
                 self.inner()
                     .attributes
-                    .get(name)
-                    .ok_or(SealError::MissingAttribute(name.to_string()))
+                    .get(attr)
+                    .ok_or(SealError::MissingAttribute(attr.to_string()))
             })
             .collect::<Result<Vec<&TableAttribute>, SealError>>()?;
 
@@ -127,7 +132,13 @@ impl TryFrom<Sealed> for HashMap<String, AttributeValue> {
         }
 
         item.0.attributes.into_iter().for_each(|(k, v)| {
-            map.insert(k.to_string(), v.into());
+            map.insert(
+                match k.as_str() {
+                    "sk" => "__sk".to_string(),
+                    _ => k,
+                },
+                v.into(),
+            );
         });
 
         Ok(map)

tests/pk_tests.rs

@@ -15,6 +15,7 @@ pub struct User {
 
     #[cryptonamo(query = "prefix", compound = "pk#sk")]
     #[cryptonamo(query = "prefix")]
+    #[cryptonamo(plaintext)]
     #[sort_key]
     pub sk: String,