diff --git a/rust/pv/src/req/context.rs b/rust/pv/src/req/context.rs
index 1cc6c9f3..1e49ef67 100644
--- a/rust/pv/src/req/context.rs
+++ b/rust/pv/src/req/context.rs
@@ -2,6 +2,8 @@
 //
 // Copyright IBM Corp.
 
+//! Request encryption context for managing UV request encryption.
+
 use std::mem::size_of;
 
 use openssl::nid::Nid;
@@ -34,7 +36,7 @@ impl ReqEncrCtx {
     /// * `priv_key` - Private key to wrap [`Keyslot`](super::Keyslot)
     /// * `prot_key` - Symmetric key for request encryption. Part of [`Keyslot`](super::Keyslot)
     ///
-    /// If an argument is set to `None` a ranom is generated
+    /// If an argument is set to `None` a random is generated
     ///
     /// # Errors
     ///
@@ -62,8 +64,8 @@ impl ReqEncrCtx {
     /// # Errors
     ///
     /// This function will return an error if OpenSSL could not generate a random value.
-    pub fn random(ket_tp: SymKeyType) -> Result<Self> {
-        match ket_tp {
+    pub fn random(key_tp: SymKeyType) -> Result<Self> {
+        match key_tp {
             SymKeyType::Aes256Gcm => Self::new_aes_256(None, None, None),
             SymKeyType::Aes256Xts => Err(Error::NoAeadKey),
         }
diff --git a/rust/pv/src/req/ec_coord.rs b/rust/pv/src/req/ec_coord.rs
index 850feb30..b8882e3f 100644
--- a/rust/pv/src/req/ec_coord.rs
+++ b/rust/pv/src/req/ec_coord.rs
@@ -2,6 +2,8 @@
 //
 // Copyright IBM Corp.
 
+//! EC public key coordinate utilities and conversions.
+
 use openssl::bn::{BigNum, BigNumContext};
 use openssl::ec::{EcGroup, EcGroupRef, EcKey, EcPointRef};
 use openssl::error::ErrorStack;
diff --git a/rust/pv/src/req/encrypt.rs b/rust/pv/src/req/encrypt.rs
index f51fe0c6..3f91f9ce 100644
--- a/rust/pv/src/req/encrypt.rs
+++ b/rust/pv/src/req/encrypt.rs
@@ -2,9 +2,11 @@
 //
 // Copyright IBM Corp.
 
+//! Encryption trait and authenticated data types for UV requests.
+
 use openssl::pkey::{PKeyRef, Private};
 
-use super::keyslot::Keyslot;
+use crate::req::Keyslot;
 use crate::Result;
 
 /// Encrypt a _secret_ using self and a given private key.
diff --git a/rust/pv/src/req/header.rs b/rust/pv/src/req/header.rs
index 9ddcd5b4..da4a5f05 100644
--- a/rust/pv/src/req/header.rs
+++ b/rust/pv/src/req/header.rs
@@ -2,12 +2,13 @@
 //
 // Copyright IBM Corp.
 
+//! Request header structure for UV requests.
 use zerocopy::{BigEndian, FromBytes, Immutable, IntoBytes, U32};
 
 use crate::assert_size;
 
 /// Representation of the shared parts of the request header.
-/// Used by [`ReqEncrCtx`]
+/// Used by [`ReqEncrCtx`](super::ReqEncrCtx)
 #[repr(C)]
 #[derive(Debug, Copy, Clone, IntoBytes, FromBytes, Immutable)]
 pub struct RequestHdr {
diff --git a/rust/pv/src/req/keyslot.rs b/rust/pv/src/req/keyslot.rs
index 82d6e169..7989ee48 100644
--- a/rust/pv/src/req/keyslot.rs
+++ b/rust/pv/src/req/keyslot.rs
@@ -2,6 +2,8 @@
 //
 // Copyright IBM Corp.
 
+//! IBM Z Host key-slot implementations.
+
 use openssl::hash::MessageDigest;
 use openssl::pkey::{PKey, PKeyRef, Private, Public};