} else if (strcmp("AES_GCM", optarg) == 0) {
                *algo = RTE_CRYPTO_CIPHER_AES_GCM;
                return 0;
+       } else if (strcmp("NULL", optarg) == 0) {
+               *algo = RTE_CRYPTO_CIPHER_NULL;
+               return 0;
        } else if (strcmp("SNOW3G_UEA2", optarg) == 0) {
                *algo = RTE_CRYPTO_CIPHER_SNOW3G_UEA2;
                return 0;
        } else if (strcmp("MD5_HMAC", optarg) == 0) {
                *algo = RTE_CRYPTO_AUTH_MD5_HMAC;
                return 0;
+       } else if (strcmp("NULL", optarg) == 0) {
+               *algo = RTE_CRYPTO_AUTH_NULL;
+               return 0;
        } else if (strcmp("SHA1_HMAC", optarg) == 0) {
                *algo = RTE_CRYPTO_AUTH_SHA1_HMAC;
                return 0;