diff --git a/programs/test/benchmark.c b/programs/test/benchmark.c
index ecc4e94..1a8baee 100644
--- a/programs/test/benchmark.c
+++ b/programs/test/benchmark.c
@@ -117,7 +117,7 @@
     "md5, ripemd160, sha1, sha256, sha512,\n"                           \
     "sha3_224, sha3_256, sha3_384, sha3_512,\n"                         \
     "des3, des, camellia, chacha20,\n"                                  \
-    "aes_cbc, aes_gcm, aes_ccm, aes_xts, chachapoly,\n"                 \
+    "aes_cbc, aes_cfb128, aes_gcm, aes_ccm, aes_xts, chachapoly,\n"     \
     "aes_cmac, des3_cmac, poly1305\n"                                   \
     "ctr_drbg, hmac_drbg\n"                                             \
     "rsa, dhm, ecdsa, ecdh.\n"
@@ -510,7 +510,7 @@
     char md5, ripemd160, sha1, sha256, sha512,
          sha3_224, sha3_256, sha3_384, sha3_512,
          des3, des,
-         aes_cbc, aes_gcm, aes_ccm, aes_xts, chachapoly,
+         aes_cbc, aes_cfb128, aes_gcm, aes_ccm, aes_xts, chachapoly,
          aes_cmac, des3_cmac,
          aria, camellia, chacha20,
          poly1305,
@@ -570,6 +570,8 @@
                 todo.des = 1;
             } else if (strcmp(argv[i], "aes_cbc") == 0) {
                 todo.aes_cbc = 1;
+            } else if (strcmp(argv[i], "aes_cfb128") == 0) {
+                todo.aes_cfb128 = 1;
             } else if (strcmp(argv[i], "aes_xts") == 0) {
                 todo.aes_xts = 1;
             } else if (strcmp(argv[i], "aes_gcm") == 0) {
@@ -732,6 +734,26 @@
         mbedtls_aes_free(&aes);
     }
 #endif
+#if defined(MBEDTLS_CIPHER_MODE_CFB)
+    if (todo.aes_cfb128) {
+        int keysize;
+        size_t iv_off = 0;
+        mbedtls_aes_context aes;
+        mbedtls_aes_init(&aes);
+        for (keysize = 128; keysize <= 256; keysize += 64) {
+            mbedtls_snprintf(title, sizeof(title), "AES-CFB128-%d", keysize);
+
+            memset(buf, 0, sizeof(buf));
+            memset(tmp, 0, sizeof(tmp));
+            CHECK_AND_CONTINUE(mbedtls_aes_setkey_enc(&aes, tmp, keysize));
+
+            TIME_AND_TSC(title,
+                         mbedtls_aes_crypt_cfb128(&aes, MBEDTLS_AES_ENCRYPT, BUFSIZE,
+                                                  &iv_off, tmp, buf, buf));
+        }
+        mbedtls_aes_free(&aes);
+    }
+#endif
 #if defined(MBEDTLS_CIPHER_MODE_XTS)
     if (todo.aes_xts) {
         int keysize;