diff --git a/components/asio/CMakeLists.txt b/components/asio/CMakeLists.txt
index b55dc56ab3..e45f2c95f5 100644
--- a/components/asio/CMakeLists.txt
+++ b/components/asio/CMakeLists.txt
@@ -1,5 +1,33 @@
-idf_component_register(SRCS "asio/asio/src/asio.cpp"
-                            "asio/asio/src/asio_ssl.cpp"
-                            "port/src/esp_asio_openssl_stubs.c"
+set(asio_sources "asio/asio/src/asio.cpp")
+
+if (CONFIG_ASIO_SSL_SUPPORT)
+    if(CONFIG_ASIO_USE_ESP_OPENSSL)
+        list(APPEND asio_sources
+                "asio/asio/src/asio_ssl.cpp"
+                "port/src/esp_asio_openssl_stubs.c")
+    endif()
+
+    if(CONFIG_ASIO_USE_ESP_WOLFSSL)
+        list(APPEND asio_sources
+                "asio/asio/src/asio_ssl.cpp")
+    endif()
+endif()
+
+idf_component_register(SRCS ${asio_sources}
                     INCLUDE_DIRS "asio/asio/include" "port/include"
-                    REQUIRES lwip openssl)
+                    REQUIRES lwip)
+
+if (CONFIG_ASIO_SSL_SUPPORT)
+    if(CONFIG_ASIO_USE_ESP_WOLFSSL)
+        idf_component_get_property(wolflib esp-wolfssl COMPONENT_LIB)
+        idf_component_get_property(wolfdir esp-wolfssl COMPONENT_DIR)
+
+        target_link_libraries(${COMPONENT_LIB} PUBLIC ${wolflib})
+        target_include_directories(${COMPONENT_LIB} PUBLIC ${wolfdir}/wolfssl/wolfssl)
+    endif()
+
+    if(CONFIG_ASIO_USE_ESP_OPENSSL)
+        idf_component_get_property(esp_openssl openssl COMPONENT_LIB)
+        target_link_libraries(${COMPONENT_LIB} PUBLIC ${esp_openssl})
+    endif()
+endif()
diff --git a/components/asio/Kconfig b/components/asio/Kconfig
new file mode 100644
index 0000000000..582410e7ce
--- /dev/null
+++ b/components/asio/Kconfig
@@ -0,0 +1,25 @@
+menu "ESP-ASIO"
+    config ASIO_SSL_SUPPORT
+        bool "Enable SSL/TLS support of ASIO"
+        default n
+        help
+            Enable support for basic SSL/TLS features, available for mbedTLS/OpenSSL
+            as well as wolfSSL TLS library.
+
+    choice ASIO_SSL_LIBRARY_CHOICE
+        prompt "Choose SSL/TLS library for ESP-TLS (See help for more Info)"
+        default ASIO_USE_ESP_OPENSSL
+        depends on ASIO_SSL_SUPPORT
+        help
+            The ASIO support multiple backend TLS libraries. Currently the mbedTLS with a thin ESP-OpenSSL
+            port layer (default choice) and WolfSSL are supported.
+            Different TLS libraries may support different features and have different resource
+            usage. Consult the ESP-TLS documentation in ESP-IDF Programming guide for more details.
+        config ASIO_USE_ESP_OPENSSL
+            bool "esp-openssl"
+        config ASIO_USE_ESP_WOLFSSL
+            depends on TLS_STACK_WOLFSSL
+            bool "wolfSSL (License info in wolfSSL directory README)"
+    endchoice
+
+endmenu
diff --git a/components/asio/asio b/components/asio/asio
index 61702cd13b..f31694c9f1 160000
--- a/components/asio/asio
+++ b/components/asio/asio
@@ -1 +1 @@
-Subproject commit 61702cd13be0b8c9800a9793daae72768ede26af
+Subproject commit f31694c9f1746ba189a4bcae2e34db15135ddb22
diff --git a/components/asio/component.mk b/components/asio/component.mk
index 0c2919e24e..30b2907bbb 100644
--- a/components/asio/component.mk
+++ b/components/asio/component.mk
@@ -2,4 +2,8 @@ COMPONENT_ADD_INCLUDEDIRS := asio/asio/include port/include
 COMPONENT_PRIV_INCLUDEDIRS := private_include
 COMPONENT_SRCDIRS := asio/asio/src port/src
 
+ifeq ($(CONFIG_ASIO_SSL_SUPPORT), )
+COMPONENT_OBJEXCLUDE := asio/asio/src/asio_ssl.o port/src/esp_asio_openssl_stubs.o
+endif
+
 COMPONENT_SUBMODULES += asio
diff --git a/components/asio/port/include/esp_asio_config.h b/components/asio/port/include/esp_asio_config.h
index 750f4cbe3f..bcf8c38d40 100644
--- a/components/asio/port/include/esp_asio_config.h
+++ b/components/asio/port/include/esp_asio_config.h
@@ -40,4 +40,11 @@
 # define ASIO_STANDALONE
 # define ASIO_HAS_PTHREADS
 
+# ifdef CONFIG_ASIO_USE_ESP_OPENSSL
+#  define ASIO_USE_ESP_OPENSSL
+#  define OPENSSL_NO_ENGINE
+# elif CONFIG_ASIO_USE_ESP_WOLFSSL
+#  define ASIO_USE_WOLFSSL
+# endif   // CONFIG_ASIO_USE_ESP_OPENSSL
+
 #endif // _ESP_ASIO_CONFIG_H_
diff --git a/components/asio/port/include/openssl/conf.h b/components/asio/port/include/openssl/conf.h
index 9c46bd14a0..f125c3e6cf 100644
--- a/components/asio/port/include/openssl/conf.h
+++ b/components/asio/port/include/openssl/conf.h
@@ -14,7 +14,13 @@
 
 #ifndef _ESP_ASIO_OPENSSL_CONF_H
 #define _ESP_ASIO_OPENSSL_CONF_H
-
+#include "esp_asio_config.h"
 #include "openssl/esp_asio_openssl_stubs.h"
 
+#if defined(ASIO_USE_WOLFSSL)
+// SSLv3 Methods not present in current wolfSSL library
+#define OPENSSL_NO_SSL3
+#include_next "openssl/conf.h"
+#endif // ASIO_USE_WOLFSSL
+
 #endif // _ESP_ASIO_OPENSSL_CONF_H
diff --git a/components/asio/port/include/openssl/dh.h b/components/asio/port/include/openssl/dh.h
new file mode 100644
index 0000000000..def713cfd3
--- /dev/null
+++ b/components/asio/port/include/openssl/dh.h
@@ -0,0 +1,23 @@
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef _ESP_ASIO_OPENSSL_DH_STUB_H
+#define _ESP_ASIO_OPENSSL_DH_STUB_H
+// Dummy header needed for ASIO compilation with esp-openssl
+
+#if defined(ASIO_USE_WOLFSSL)
+#include_next "openssl/dh.h"
+#endif // ASIO_USE_WOLFSSL
+
+#endif // _ESP_ASIO_OPENSSL_DH_STUB_H
diff --git a/components/asio/port/include/openssl/esp_asio_openssl_stubs.h b/components/asio/port/include/openssl/esp_asio_openssl_stubs.h
index 611b4e784e..fde5231722 100644
--- a/components/asio/port/include/openssl/esp_asio_openssl_stubs.h
+++ b/components/asio/port/include/openssl/esp_asio_openssl_stubs.h
@@ -15,21 +15,57 @@
 #ifndef _ESP_ASIO_OPENSSL_STUBS_H
 #define _ESP_ASIO_OPENSSL_STUBS_H
 
-#include "internal/ssl_x509.h"
-#include "internal/ssl_pkey.h"
-#include "mbedtls/pem.h"
-#include <stdint.h>
-
 /**
  * @note This header contains openssl API which are NOT implemented, and are only provided
  * as stubs or no-operations to get the ASIO library compiled and working with most
  * practical use cases as an embedded application on ESP platform
  */
 
+#if defined(ASIO_USE_WOLFSSL)
+
+#include "wolfssl/ssl.h"
+// esp-wolfssl disables filesystem by default, but the ssl filesystem functions are needed for the ASIO to compile
+//  - so we could either configure wolfSSL to use filesystem
+//  - or use the default wolfSSL and declare the filesystem functions -- preferred option, as whenever
+//    the filesystem functions are used from app code (potential security impact if private keys in a filesystem)
+//    compilation fails with linking errors.
+
+#if defined(NO_FILESYSTEM)
+// WolfSSL methods that are not included in standard esp-wolfssl config, must be defined here
+// as function stubs,  so ASIO compiles, but would get link errors, if these functions were used.
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
+
+void wolfSSL_CTX_set_verify_depth(WOLFSSL_CTX *ctx,int depth);
+int SSL_CTX_load_verify_locations(WOLFSSL_CTX*, const char*, const char*);
+int SSL_CTX_use_certificate_file(WOLFSSL_CTX*, const char*, int);
+int SSL_CTX_use_certificate_chain_file(WOLFSSL_CTX*, const char*);
+int SSL_CTX_use_PrivateKey_file(WOLFSSL_CTX*, const char*, int);
+int SSL_CTX_use_RSAPrivateKey_file(WOLFSSL_CTX*, const char*, int);
+
+#if defined(__cplusplus)
+} /* extern C */
+#endif
+
+#endif // NO_FILESYSTEM
+
+#elif defined(ASIO_USE_ESP_OPENSSL)
+
+#include "internal/ssl_x509.h"
+#include "internal/ssl_pkey.h"
+#include "mbedtls/pem.h"
+#include <stdint.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
 // The most applicable OpenSSL version wrtt ASIO usage
 #define OPENSSL_VERSION_NUMBER 0x10100001L
 // SSLv2 methods not supported
@@ -40,10 +76,7 @@ extern "C" {
 #define SSL_R_SHORT_READ 219
 #define SSL_OP_ALL 0
 #define SSL_OP_SINGLE_DH_USE 0
-//#define OPENSSL_VERSION_NUMBER 0x10001000L
 #define SSL_OP_NO_COMPRESSION 0
-//#define LIBRESSL_VERSION_NUMBER 1
-//#define PEM_R_NO_START_LINE 110
 // Translates mbedTLS PEM parse error, used by ASIO
 #define PEM_R_NO_START_LINE -MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT
 
@@ -58,9 +91,6 @@ extern "C" {
 
 #define NID_subject_alt_name 85
 
-#define SSL_MODE_RELEASE_BUFFERS            0x00000000L
-#define SSL_MODE_ENABLE_PARTIAL_WRITE       0x00000001L
-#define SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER 0x00000002L
 
 #define GEN_DNS		2
 #define GEN_IPADD	7
@@ -153,13 +183,6 @@ void *	X509_STORE_CTX_get_ex_data(X509_STORE_CTX *ctx,int idx);
  */
 int SSL_CTX_set_tmp_dh(SSL_CTX *ctx, const DH *dh);
 
-/**
- * @brief Sets SSL mode -- not implemented
- *
- * Current implementation is no-op
- */
-uint32_t SSL_set_mode(SSL *ssl, uint32_t mode);
-
 /**
  * @brief API provaded as declaration only
  *
@@ -182,4 +205,5 @@ int SSL_CTX_clear_chain_certs(SSL_CTX *ctx);
 } /* extern C */
 #endif
 
+#endif /* ASIO_USE_ESP_OPENSSL, ASIO_USE_WOLFSSL */
 #endif /* _ESP_ASIO_OPENSSL_STUBS_H */
diff --git a/components/asio/port/include/openssl/rsa.h b/components/asio/port/include/openssl/rsa.h
new file mode 100644
index 0000000000..5d9d10e82b
--- /dev/null
+++ b/components/asio/port/include/openssl/rsa.h
@@ -0,0 +1,23 @@
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef _ESP_ASIO_OPENSSL_RSA_STUB_H
+#define _ESP_ASIO_OPENSSL_RSA_STUB_H
+// Dummy header needed for ASIO compilation with esp-openssl
+
+#if defined(ASIO_USE_WOLFSSL)
+#include_next "openssl/rsa.h"
+#endif // ASIO_USE_WOLFSSL
+
+#endif // _ESP_ASIO_OPENSSL_RSA_STUB_H
diff --git a/components/asio/port/include/openssl/x509v3.h b/components/asio/port/include/openssl/x509v3.h
new file mode 100644
index 0000000000..5ae8e78435
--- /dev/null
+++ b/components/asio/port/include/openssl/x509v3.h
@@ -0,0 +1,23 @@
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef _ESP_ASIO_OPENSSL_X509V3_STUB_H
+#define _ESP_ASIO_OPENSSL_X509V3_STUB_H
+// Dummy header needed for ASIO compilation with esp-openssl
+
+#if defined(ASIO_USE_WOLFSSL)
+#include_next "openssl/x509v3.h"
+#endif // ASIO_USE_WOLFSSL
+
+#endif // _ESP_ASIO_OPENSSL_X509V3_STUB_H
diff --git a/components/asio/port/src/esp_asio_openssl_stubs.c b/components/asio/port/src/esp_asio_openssl_stubs.c
index 9fdf53d0d1..6deb099caa 100644
--- a/components/asio/port/src/esp_asio_openssl_stubs.c
+++ b/components/asio/port/src/esp_asio_openssl_stubs.c
@@ -49,11 +49,6 @@ X509_NAME *X509_get_subject_name(X509 *a)
     return NULL;
 }
 
-uint32_t SSL_set_mode(SSL *ssl, uint32_t mode)
-{
-    return 0;
-}
-
 int SSL_CTX_clear_chain_certs(SSL_CTX *ctx)
 {
     return 1;
diff --git a/components/openssl/include/internal/ssl_code.h b/components/openssl/include/internal/ssl_code.h
index 80fdbb20f3..18e687e5f9 100644
--- a/components/openssl/include/internal/ssl_code.h
+++ b/components/openssl/include/internal/ssl_code.h
@@ -23,6 +23,10 @@
 #include "tls1.h"
 #include "x509_vfy.h"
 
+/* Used in SSL_set_mode() -- supported mode when using BIO */
+#define SSL_MODE_ENABLE_PARTIAL_WRITE       0x00000001L
+#define SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER 0x00000002L
+
 /* Used in SSL_set_shutdown()/SSL_get_shutdown(); */
 # define SSL_SENT_SHUTDOWN       1
 # define SSL_RECEIVED_SHUTDOWN   2
diff --git a/components/openssl/include/internal/ssl_types.h b/components/openssl/include/internal/ssl_types.h
index 38c9673548..2871d3a83a 100644
--- a/components/openssl/include/internal/ssl_types.h
+++ b/components/openssl/include/internal/ssl_types.h
@@ -21,6 +21,7 @@
 
 #include "ssl_code.h"
 #include <stddef.h>
+#include <stdint.h>
 
 typedef void SSL_CIPHER;
 
@@ -256,7 +257,7 @@ struct ssl_st
 
     X509_VERIFY_PARAM param;
 
-    int err;
+    uint32_t mode;
 
     void (*info_callback) (const SSL *ssl, int type, int val);
 
diff --git a/components/openssl/include/openssl/openssl_err.h b/components/openssl/include/openssl/err.h
similarity index 98%
rename from components/openssl/include/openssl/openssl_err.h
rename to components/openssl/include/openssl/err.h
index 930807500e..f4247a4a7c 100644
--- a/components/openssl/include/openssl/openssl_err.h
+++ b/components/openssl/include/openssl/err.h
@@ -22,8 +22,8 @@ extern "C" {
 #endif
 
 /**
- * @note This file contains a very simple implementation of error stack provided
- * OpenSSL library. It is OFF by default.
+ * @note This file contains a very simple implementation of error stack
+ * for ESP APIs stubs to OpenSSL
  */
 
 #define OPENSSL_PUT_SYSTEM_ERROR() \
diff --git a/components/openssl/include/openssl/ssl.h b/components/openssl/include/openssl/ssl.h
index 6a39c7cd53..4a3376c0db 100644
--- a/components/openssl/include/openssl/ssl.h
+++ b/components/openssl/include/openssl/ssl.h
@@ -22,7 +22,7 @@
 #include "internal/ssl_x509.h"
 #include "internal/ssl_pkey.h"
 #include "openssl/bio.h"
-#include "openssl/openssl_err.h"
+#include "openssl/err.h"
 
 /*
 {
@@ -1888,6 +1888,15 @@ openssl_verify_callback SSL_get_verify_callback(const SSL *s);
  */
 void RSA_free(RSA *r);
 
+/**
+ * @brief Sets SSL mode, partially implemented
+ *
+ * @param ssl SSL context
+ *
+ * @return the new mode bitmask after adding mode
+ */
+uint32_t SSL_set_mode(SSL *ssl, uint32_t mode);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/components/openssl/library/ssl_bio.c b/components/openssl/library/ssl_bio.c
index 46d4616f10..2a70b70aa7 100644
--- a/components/openssl/library/ssl_bio.c
+++ b/components/openssl/library/ssl_bio.c
@@ -15,7 +15,7 @@
 #include "ssl_lib.h"
 #include "openssl/bio.h"
 #include "ssl_dbg.h"
-#include "openssl/openssl_err.h"
+#include "openssl/err.h"
 
 #define DEFAULT_BIO_SIZE 1024
 
diff --git a/components/openssl/library/ssl_lib.c b/components/openssl/library/ssl_lib.c
index 46b0cc0fd7..01374a214c 100644
--- a/components/openssl/library/ssl_lib.c
+++ b/components/openssl/library/ssl_lib.c
@@ -1597,7 +1597,9 @@ void SSL_set_verify_depth(SSL *ssl, int depth)
 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*verify_callback)(int, X509_STORE_CTX *))
 {
     SSL_ASSERT3(ctx);
-    SSL_ASSERT3(ESP_OPENSSL_VERIFYCB_IS_SUPPORTED);
+    if (verify_callback) {
+        SSL_ASSERT3(ESP_OPENSSL_VERIFYCB_IS_SUPPORTED);
+    }
 
     ctx->verify_mode = mode;
     ctx->default_verify_callback = verify_callback;
@@ -1609,7 +1611,9 @@ void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*verify_callback)(int, X509
 void SSL_set_verify(SSL *ssl, int mode, int (*verify_callback)(int, X509_STORE_CTX *))
 {
     SSL_ASSERT3(ssl);
-    SSL_ASSERT3(ESP_OPENSSL_VERIFYCB_IS_SUPPORTED);
+    if (verify_callback) {
+        SSL_ASSERT3(ESP_OPENSSL_VERIFYCB_IS_SUPPORTED);
+    }
 
     ssl->verify_mode = mode;
     ssl->verify_callback = verify_callback;
@@ -1669,3 +1673,12 @@ int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, unsigned
      ctx->ssl_alpn.alpn_list[i] = NULL;
      return 0;
 }
+
+/**
+ * @brief Set the mode, but might assert if the related mode is not supported once session starts
+ */
+uint32_t SSL_set_mode(SSL *ssl, uint32_t mode)
+{
+    ssl->mode |= mode;
+    return ssl->mode;
+}
diff --git a/components/openssl/platform/ssl_pm.c b/components/openssl/platform/ssl_pm.c
index 6f55da47e3..f5597da587 100644
--- a/components/openssl/platform/ssl_pm.c
+++ b/components/openssl/platform/ssl_pm.c
@@ -25,7 +25,7 @@
 #include "mbedtls/error.h"
 #include "mbedtls/certs.h"
 #include "openssl/bio.h"
-#include "openssl/openssl_err.h"
+#include "openssl/err.h"
 
 #define X509_INFO_STRING_LENGTH 8192
 
@@ -316,7 +316,12 @@ int ssl_pm_handshake(SSL *ssl)
     struct ssl_pm *ssl_pm = (struct ssl_pm *)ssl->ssl_pm;
 
     if (ssl->bio) {
+        // if using BIO, make sure the mode is supported
+        SSL_ASSERT1(ssl->mode & (SSL_MODE_ENABLE_PARTIAL_WRITE | SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER));
         mbedtls_ssl_set_bio(&ssl_pm->ssl, ssl->bio, mbedtls_bio_send, mbedtls_bio_recv, NULL);
+    } else {
+        // defaults to SSL_read/write using a file descriptor -- expects default mode
+        SSL_ASSERT1(ssl->mode == 0);
     }
 
     ret = ssl_pm_reload_crt(ssl);
diff --git a/components/openssl/test/test_openssl.c b/components/openssl/test/test_openssl.c
index f0078847e2..663e9a2c72 100644
--- a/components/openssl/test/test_openssl.c
+++ b/components/openssl/test/test_openssl.c
@@ -1,3 +1,17 @@
+/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
 #include "test_utils.h"
 #include "openssl/ssl.h"
 #include "unity.h"
diff --git a/docs/en/api-reference/protocols/asio.rst b/docs/en/api-reference/protocols/asio.rst
index cd6a40ec30..559759e9e0 100644
--- a/docs/en/api-reference/protocols/asio.rst
+++ b/docs/en/api-reference/protocols/asio.rst
@@ -14,12 +14,12 @@ Asio also comes with a number of examples which could be find under Documentatio
 Supported features
 ^^^^^^^^^^^^^^^^^^
 ESP platform port currently supports only network asynchronous socket operations; does not support serial port.
-SSL/TLS support if disabled by default and could be enabled in component configuration menu and choosing TLS library from
+SSL/TLS support is disabled by default and could be enabled in component configuration menu by choosing TLS library from
 
 - mbedTLS with OpenSSL translation layer (default option)
 - wolfSSL
 
-SSL support is very basic at this stage, not including
+SSL support is very basic at this stage and it does include following features:
 
 - Verification callbacks
 - DH property files
diff --git a/examples/protocols/asio/ssl_client_server/main/CMakeLists.txt b/examples/protocols/asio/ssl_client_server/main/CMakeLists.txt
index 5fd4fe15e8..f962b470c2 100644
--- a/examples/protocols/asio/ssl_client_server/main/CMakeLists.txt
+++ b/examples/protocols/asio/ssl_client_server/main/CMakeLists.txt
@@ -1,3 +1,3 @@
 idf_component_register(SRCS "asio_ssl_main.cpp"
                     INCLUDE_DIRS "."
-        EMBED_TXTFILES cacert.pem prvtkey.pem)
+        EMBED_TXTFILES ca.crt server.key srv.crt)
diff --git a/examples/protocols/asio/ssl_client_server/main/Kconfig.projbuild b/examples/protocols/asio/ssl_client_server/main/Kconfig.projbuild
index a5996f7087..1d03a2af4a 100644
--- a/examples/protocols/asio/ssl_client_server/main/Kconfig.projbuild
+++ b/examples/protocols/asio/ssl_client_server/main/Kconfig.projbuild
@@ -25,4 +25,12 @@ menu "Example Configuration"
         help
             Asio example server ip for the ASIO client to connect to.
 
+    config EXAMPLE_CLIENT_VERIFY_PEER
+        bool "Client to verify peer"
+        default n
+        depends on EXAMPLE_CLIENT
+        help
+            This option sets client's mode to verify peer, default is
+            verify-none
+
 endmenu
diff --git a/examples/protocols/asio/ssl_client_server/main/asio_ssl_main.cpp b/examples/protocols/asio/ssl_client_server/main/asio_ssl_main.cpp
index 8209b680d6..1959f1870e 100644
--- a/examples/protocols/asio/ssl_client_server/main/asio_ssl_main.cpp
+++ b/examples/protocols/asio/ssl_client_server/main/asio_ssl_main.cpp
@@ -1,3 +1,10 @@
+//
+// Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
 #include <string>
 #include "protocol_examples_common.h"
 #include "esp_event.h"
@@ -11,30 +18,36 @@
 #include "asio/buffer.hpp"
 #include "esp_pthread.h"
 
-extern const unsigned char cacert_pem_start[] asm("_binary_cacert_pem_start");
-extern const unsigned char cacert_pem_end[]   asm("_binary_cacert_pem_end");
+extern const unsigned char server_pem_start[] asm("_binary_srv_crt_start");
+extern const unsigned char server_pem_end[]   asm("_binary_srv_crt_end");
 
-extern const unsigned char prvtkey_pem_start[] asm("_binary_prvtkey_pem_start");
-extern const unsigned char prvtkey_pem_end[]   asm("_binary_prvtkey_pem_end");
+extern const unsigned char cacert_pem_start[] asm("_binary_ca_crt_start");
+extern const unsigned char cacert_pem_end[]   asm("_binary_ca_crt_end");
+
+extern const unsigned char prvtkey_pem_start[] asm("_binary_server_key_start");
+extern const unsigned char prvtkey_pem_end[]   asm("_binary_server_key_end");
 
 const asio::const_buffer cert_chain(cacert_pem_start, cacert_pem_end - cacert_pem_start);
 const asio::const_buffer privkey(prvtkey_pem_start, prvtkey_pem_end - prvtkey_pem_start);
-
-using asio::ip::tcp;
+const asio::const_buffer server_cert(server_pem_start, server_pem_end - server_pem_start);
 
 using asio::ip::tcp;
 
 enum { max_length = 1024 };
 
-class client
-{
+class Client {
 public:
-    client(asio::io_context& io_context,
+    Client(asio::io_context& io_context,
            asio::ssl::context& context,
            const tcp::resolver::results_type& endpoints)
             : socket_(io_context, context)
     {
+
+#if CONFIG_EXAMPLE_CLIENT_VERIFY_PEER
         socket_.set_verify_mode(asio::ssl::verify_peer);
+#else
+        socket_.set_verify_mode(asio::ssl::verify_none);
+#endif // CONFIG_EXAMPLE_CLIENT_VERIFY_PEER
 
         connect(endpoints);
     }
@@ -117,10 +130,9 @@ private:
     char reply_[max_length];
 };
 
-class session : public std::enable_shared_from_this<session>
-{
+class Session : public std::enable_shared_from_this<Session> {
 public:
-    session(tcp::socket socket, asio::ssl::context& context)
+    Session(tcp::socket socket, asio::ssl::context& context)
             : socket_(std::move(socket), context)
     {
     }
@@ -174,20 +186,19 @@ private:
     }
 
     asio::ssl::stream<tcp::socket> socket_;
-    char data_[1024];
+    char data_[max_length];
 };
 
-class server
-{
+class Server {
 public:
-    server(asio::io_context& io_context, unsigned short port)
+    Server(asio::io_context& io_context, unsigned short port)
             : acceptor_(io_context, tcp::endpoint(tcp::v4(), port)),
               context_(asio::ssl::context::tls_server)
     {
         context_.set_options(
                 asio::ssl::context::default_workarounds
                 | asio::ssl::context::no_sslv2);
-        context_.use_certificate_chain(cert_chain);
+        context_.use_certificate_chain(server_cert);
         context_.use_private_key(privkey, asio::ssl::context::pem);
 
         do_accept();
@@ -201,7 +212,7 @@ private:
                 {
                     if (!error)
                     {
-                        std::make_shared<session>(std::move(socket), context_)->start();
+                        std::make_shared<Session>(std::move(socket), context_)->start();
                     }
 
                     do_accept();
@@ -225,7 +236,7 @@ void ssl_server_thread()
 {
     asio::io_context io_context;
 
-    server s(io_context, 443);
+    Server s(io_context, 443);
 
     io_context.run();
 }
@@ -240,9 +251,11 @@ void ssl_client_thread()
     auto endpoints = resolver.resolve(server_ip, server_port);
 
     asio::ssl::context ctx(asio::ssl::context::tls_client);
-    ctx.use_certificate_chain(cert_chain);
+#if CONFIG_EXAMPLE_CLIENT_VERIFY_PEER
+    ctx.add_certificate_authority(cert_chain);
+#endif // CONFIG_EXAMPLE_CLIENT_VERIFY_PEER
 
-    client c(io_context, ctx, endpoints);
+    Client c(io_context, ctx, endpoints);
 
     io_context.run();
 
diff --git a/examples/protocols/asio/ssl_client_server/main/ca.crt b/examples/protocols/asio/ssl_client_server/main/ca.crt
new file mode 100644
index 0000000000..894f2959b0
--- /dev/null
+++ b/examples/protocols/asio/ssl_client_server/main/ca.crt
@@ -0,0 +1,22 @@
+-----BEGIN CERTIFICATE-----
+MIIDkzCCAnugAwIBAgIUNI5wldYysh6rtCzYmda6H414aRswDQYJKoZIhvcNAQEL
+BQAwWTELMAkGA1UEBhMCQVUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoM
+GEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDESMBAGA1UEAwwJRXNwcmVzc2lmMB4X
+DTIwMDEyMTA5MDk0NloXDTI1MDEyMDA5MDk0NlowWTELMAkGA1UEBhMCQVUxEzAR
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+GylmDzFI8a6aKxQL3Fi4PsM82hRKWu3gfs39sR1Ci4V22v8uO5EWBPK0QZvDSc1a
+KwwxI4zA0w==
+-----END CERTIFICATE-----
diff --git a/examples/protocols/asio/ssl_client_server/main/cacert.pem b/examples/protocols/asio/ssl_client_server/main/cacert.pem
deleted file mode 100644
index e09c3989cd..0000000000
--- a/examples/protocols/asio/ssl_client_server/main/cacert.pem
+++ /dev/null
@@ -1,21 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDezCCAmOgAwIBAgIJAPMMNobNczaUMA0GCSqGSIb3DQEBBAUAMHQxEzARBgNV
-BAMTCk15IFRlc3QgQ0ExCzAJBgNVBAgTAkhaMQswCQYDVQQGEwJDTjEcMBoGCSqG
-SIb3DQEJARYNdGVzdEBjZXJ0LmNvbTElMCMGA1UEChMcUm9vdCBDZXJ0aWZpY2F0
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-1OoSEi3cIJXWBAjx0TLzzhtb6aeIxBJWQqHThtkKdg==
------END CERTIFICATE-----
diff --git a/examples/protocols/asio/ssl_client_server/main/component.mk b/examples/protocols/asio/ssl_client_server/main/component.mk
index 656f72d7b7..71869b0a3f 100644
--- a/examples/protocols/asio/ssl_client_server/main/component.mk
+++ b/examples/protocols/asio/ssl_client_server/main/component.mk
@@ -7,5 +7,6 @@
 # please read the ESP-IDF documents if you need to do this.
 #
 
-COMPONENT_EMBED_TXTFILES := cacert.pem
-COMPONENT_EMBED_TXTFILES += prvtkey.pem
+COMPONENT_EMBED_TXTFILES := ca.crt
+COMPONENT_EMBED_TXTFILES += server.key
+COMPONENT_EMBED_TXTFILES += srv.crt
diff --git a/examples/protocols/asio/ssl_client_server/main/prvtkey.pem b/examples/protocols/asio/ssl_client_server/main/prvtkey.pem
deleted file mode 100644
index 4ead61f6ff..0000000000
--- a/examples/protocols/asio/ssl_client_server/main/prvtkey.pem
+++ /dev/null
@@ -1,27 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIEpAIBAAKCAQEAsONI8OWiZ6kcLNvDgxSuq5ABTTFNXj82lvbuT0jlNFVOMig6
-z/mE0jYs8VZ7gJETHT1mtPwrc0U4GhLLtuE8CyMZoXEJhhZz22JfWbmCrdOhVFKZ
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-NhNSbrN1iZ8U4oLkRTMaDKkVngGffvjGi/q0tOU7hJdZOqNlk2Iahg==
------END RSA PRIVATE KEY-----
diff --git a/examples/protocols/asio/ssl_client_server/main/server.key b/examples/protocols/asio/ssl_client_server/main/server.key
new file mode 100644
index 0000000000..2a4d650eac
--- /dev/null
+++ b/examples/protocols/asio/ssl_client_server/main/server.key
@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEogIBAAKCAQEAlUCywNhVv4RO2y9h/XGKZ1azzk3jzHpSBzIGO9LoiA8trC/p
+1ykGaUfYPJllYK4HMhC4fUyE3J7tVL2Eskzl26LNPLbEoaBWZM9NhV3iA1/1EtOu
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+-----END RSA PRIVATE KEY-----
diff --git a/examples/protocols/asio/ssl_client_server/main/srv.crt b/examples/protocols/asio/ssl_client_server/main/srv.crt
new file mode 100644
index 0000000000..29bfa16641
--- /dev/null
+++ b/examples/protocols/asio/ssl_client_server/main/srv.crt
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----
+MIIC9DCCAdwCFA1lSIcHwYKdB2UqOrZxZnVgPObTMA0GCSqGSIb3DQEBCwUAMFkx
+CzAJBgNVBAYTAkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJbnRl
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+-----END CERTIFICATE-----
diff --git a/examples/protocols/asio/ssl_client_server/partitions.csv b/examples/protocols/asio/ssl_client_server/partitions.csv
index d01414b8a9..f3aa8e2b48 100644
--- a/examples/protocols/asio/ssl_client_server/partitions.csv
+++ b/examples/protocols/asio/ssl_client_server/partitions.csv
@@ -2,4 +2,4 @@
 # Note: if you have increased the bootloader size, make sure to update the offsets to avoid overlap
 nvs,      data, nvs,     0x9000,  0x6000,
 phy_init, data, phy,     0xf000,  0x1000,
-factory,  app,  factory, 0x10000, 1200000,
+factory,  app,  factory, 0x10000, 1400000,
diff --git a/examples/protocols/asio/ssl_client_server/sdkconfig.ci b/examples/protocols/asio/ssl_client_server/sdkconfig.ci
index 958aa45d42..f1c43e8ac7 100644
--- a/examples/protocols/asio/ssl_client_server/sdkconfig.ci
+++ b/examples/protocols/asio/ssl_client_server/sdkconfig.ci
@@ -3,4 +3,4 @@ CONFIG_EXAMPLE_SERVER=y
 CONFIG_EXAMPLE_SERVER_NAME="localhost"
 CONFIG_EXAMPLE_CONNECT_WIFI=n
 CONFIG_EXAMPLE_CONNECT_ETHERNET=n
-
+CONFIG_EXAMPLE_CLIENT_VERIFY_PEER=y
diff --git a/examples/protocols/asio/ssl_client_server/sdkconfig.defaults b/examples/protocols/asio/ssl_client_server/sdkconfig.defaults
index 8ff365b198..7340a4467f 100644
--- a/examples/protocols/asio/ssl_client_server/sdkconfig.defaults
+++ b/examples/protocols/asio/ssl_client_server/sdkconfig.defaults
@@ -1,3 +1,4 @@
+CONFIG_ASIO_SSL_SUPPORT=y
 CONFIG_PARTITION_TABLE_CUSTOM=y
 CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"
 CONFIG_PARTITION_TABLE_FILENAME="partitions.csv"