diff --git a/tests/performance/encrypt_decrypt.xml b/tests/performance/encrypt_decrypt.xml
index c2398a83b8f..2d0a9361039 100644
--- a/tests/performance/encrypt_decrypt.xml
+++ b/tests/performance/encrypt_decrypt.xml
@@ -15,14 +15,12 @@
               <value>encrypt('aes-128-gcm', materialize(plaintext), key16, iv12, 'aadaadaadaad')</value>
 
               <value>encrypt('aes-192-cbc', materialize(plaintext), key24, iv16)</value>
-              <value>encrypt('aes-192-cfb128', materialize(plaintext), key24, iv16)</value>
               <value>encrypt('aes-192-ctr', materialize(plaintext), key24, iv16)</value>
               <value>encrypt('aes-192-ecb', materialize(plaintext), key24)</value>
               <value>encrypt('aes-192-ofb', materialize(plaintext), key24, iv16)</value>
               <value>encrypt('aes-192-gcm', materialize(plaintext), key24, iv12, 'aadaadaadaad')</value>
 
               <value>encrypt('aes-256-cbc', materialize(plaintext), key32, iv16)</value>
-              <value>encrypt('aes-256-cfb128', materialize(plaintext), key32, iv16)</value>
               <value>encrypt('aes-256-ctr', materialize(plaintext), key32, iv16)</value>
               <value>encrypt('aes-256-ecb', materialize(plaintext), key32)</value>
               <value>encrypt('aes-256-ofb', materialize(plaintext), key32, iv16)</value>
@@ -37,14 +35,12 @@
               <value>decrypt('aes-128-gcm', encrypt('aes-128-gcm', materialize(plaintext), key16, iv12, 'aadaadaadaad'), key16, iv12, 'aadaadaadaad')</value>
 
               <value>decrypt('aes-192-cbc', encrypt('aes-192-cbc', materialize(plaintext), key24, iv16), key24, iv16)</value>
-              <value>decrypt('aes-192-cfb128', encrypt('aes-192-cfb128', materialize(plaintext), key24, iv16), key24, iv16)</value>
               <value>decrypt('aes-192-ctr', encrypt('aes-192-ctr', materialize(plaintext), key24, iv16), key24, iv16)</value>
               <value>decrypt('aes-192-ecb', encrypt('aes-192-ecb', materialize(plaintext), key24), key24)</value>
               <value>decrypt('aes-192-ofb', encrypt('aes-192-ofb', materialize(plaintext), key24, iv16), key24, iv16)</value>
               <value>decrypt('aes-192-gcm', encrypt('aes-192-gcm', materialize(plaintext), key24, iv12, 'aadaadaadaad'), key24, iv12, 'aadaadaadaad')</value>
 
               <value>decrypt('aes-256-cbc', encrypt('aes-256-cbc', materialize(plaintext), key32, iv16), key32, iv16)</value>
-              <value>decrypt('aes-256-cfb128', encrypt('aes-256-cfb128', materialize(plaintext), key32, iv16), key32, iv16)</value>
               <value>decrypt('aes-256-ctr', encrypt('aes-256-ctr', materialize(plaintext), key32, iv16), key32, iv16)</value>
               <value>decrypt('aes-256-ecb', encrypt('aes-256-ecb', materialize(plaintext), key32), key32)</value>
               <value>decrypt('aes-256-ofb', encrypt('aes-256-ofb', materialize(plaintext), key32, iv16), key32, iv16)</value>
diff --git a/tests/performance/encrypt_decrypt_empty_string.xml b/tests/performance/encrypt_decrypt_empty_string.xml
index c5f3ccc123b..0be74c42f70 100644
--- a/tests/performance/encrypt_decrypt_empty_string.xml
+++ b/tests/performance/encrypt_decrypt_empty_string.xml
@@ -11,11 +11,9 @@
               <value>encrypt('aes-128-ctr', materialize(plaintext), key16, iv16)</value>
               <value>encrypt('aes-128-ofb', materialize(plaintext), key16, iv16)</value>
 
-              <value>encrypt('aes-192-cfb128', materialize(plaintext), key24, iv16)</value>
               <value>encrypt('aes-192-ctr', materialize(plaintext), key24, iv16)</value>
               <value>encrypt('aes-192-ofb', materialize(plaintext), key24, iv16)</value>
 
-              <value>encrypt('aes-256-cfb128', materialize(plaintext), key32, iv16)</value>
               <value>encrypt('aes-256-ctr', materialize(plaintext), key32, iv16)</value>
               <value>encrypt('aes-256-ofb', materialize(plaintext), key32, iv16)</value>
 
@@ -24,11 +22,9 @@
               <value>decrypt('aes-128-ctr', encrypt('aes-128-ctr', materialize(plaintext), key16, iv16), key16, iv16)</value>
               <value>decrypt('aes-128-ofb', encrypt('aes-128-ofb', materialize(plaintext), key16, iv16), key16, iv16)</value>
 
-              <value>decrypt('aes-192-cfb128', encrypt('aes-192-cfb128', materialize(plaintext), key24, iv16), key24, iv16)</value>
               <value>decrypt('aes-192-ctr', encrypt('aes-192-ctr', materialize(plaintext), key24, iv16), key24, iv16)</value>
               <value>decrypt('aes-192-ofb', encrypt('aes-192-ofb', materialize(plaintext), key24, iv16), key24, iv16)</value>
 
-              <value>decrypt('aes-256-cfb128', encrypt('aes-256-cfb128', materialize(plaintext), key32, iv16), key32, iv16)</value>
               <value>decrypt('aes-256-ctr', encrypt('aes-256-ctr', materialize(plaintext), key32, iv16), key32, iv16)</value>
               <value>decrypt('aes-256-ofb', encrypt('aes-256-ofb', materialize(plaintext), key32, iv16), key32, iv16)</value>