diff --git a/programs/test/benchmark.c b/programs/test/benchmark.c
index bbb7046..1555e27 100644
--- a/programs/test/benchmark.c
+++ b/programs/test/benchmark.c
@@ -92,7 +92,7 @@
 #define OPTIONS                                                         \
     "md4, md5, ripemd160, sha1, sha256, sha512,\n"                      \
     "arc4, des3, des, camellia, blowfish, 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"                                   \
     "havege, ctr_drbg, hmac_drbg\n"                                     \
     "rsa, dhm, ecdsa, ecdh.\n"
@@ -280,7 +280,7 @@
 typedef struct {
     char md4, md5, ripemd160, sha1, sha256, sha512,
          arc4, 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, blowfish, chacha20,
          poly1305,
@@ -336,6 +336,8 @@
                 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) {
@@ -500,6 +502,26 @@
         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;