kmgmt: Update match to compare the public parts of the key

The private key and public can only be compared using the public
parts of the RSA key. Only if the match succeeds we can consider
that a public key is related to the corresponding private key.

Signed-off-by: Gowtham Suresh Kumar <[email protected]>

Author: gowthamsk-arm

parsec-openssl-provider/src/keymgmt/mod.rs

@@ -372,7 +372,7 @@ pub unsafe extern "C" fn parsec_provider_kmgmt_match(
             return Err("One of the keydatas to compare is null".into());
         }
 
-        if selection & OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS as std::os::raw::c_int != 0 {
+        if selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY as std::os::raw::c_int != 0 {
             Arc::increment_strong_count(keydata1 as *const RwLock<ParsecProviderKeyObject>);
             Arc::increment_strong_count(keydata2 as *const RwLock<ParsecProviderKeyObject>);
 
@@ -382,13 +382,13 @@ pub unsafe extern "C" fn parsec_provider_kmgmt_match(
             let reader_key_data1 = key_data1.read().unwrap();
             let reader_key_data2 = key_data2.read().unwrap();
 
-            if reader_key_data1.key_name == reader_key_data2.key_name {
+            if reader_key_data1.get_rsa_key() == reader_key_data2.get_rsa_key() {
                 Ok(OPENSSL_SUCCESS)
             } else {
-                Err("Key names do not match".into())
+                Err("Public parts of the keys do not match".into())
             }
         } else {
-            Ok(OPENSSL_SUCCESS)
+            Err("Keys do not match".into())
         }
     });