diff --git a/components/openssl/include/internal/ssl_methods.h b/components/openssl/include/internal/ssl_methods.h
index 7a63b9e949..cd2f8c0533 100644
--- a/components/openssl/include/internal/ssl_methods.h
+++ b/components/openssl/include/internal/ssl_methods.h
@@ -71,12 +71,14 @@
 #define IMPLEMENT_X509_METHOD(func_name, \
                 new, \
                 free, \
-                load) \
+                load, \
+                show_info) \
     const X509_METHOD* func_name(void) { \
         static const X509_METHOD func_name##_data LOCAL_ATRR = { \
                 new, \
                 free, \
-                load \
+                load, \
+                show_info \
         }; \
         return &func_name##_data; \
     }
diff --git a/components/openssl/include/internal/ssl_types.h b/components/openssl/include/internal/ssl_types.h
index c571865c1e..19944c7819 100644
--- a/components/openssl/include/internal/ssl_types.h
+++ b/components/openssl/include/internal/ssl_types.h
@@ -275,6 +275,8 @@ struct x509_method_st {
     void (*x509_free)(X509 *x);
 
     int (*x509_load)(X509 *x, const unsigned char *buf, int len);
+
+    int (*x509_show_info)(X509 *x);
 };
 
 struct pkey_method_st {
diff --git a/components/openssl/include/openssl/ssl.h b/components/openssl/include/openssl/ssl.h
index 1d115214fd..d8400e66b5 100644
--- a/components/openssl/include/openssl/ssl.h
+++ b/components/openssl/include/openssl/ssl.h
@@ -447,6 +447,28 @@ int SSL_pending(const SSL *ssl);
  */
 int SSL_want_nothing(const SSL *ssl);
 
+/**
+ * @brief check if SSL want to read
+ *
+ * @param ssl - SSL point
+ *
+ * @return result
+ *     0 : false
+ *     1 : true
+ */
+int SSL_want_read(const SSL *ssl);
+
+/**
+ * @brief check if SSL want to write
+ *
+ * @param ssl - SSL point
+ *
+ * @return result
+ *     0 : false
+ *     1 : true
+ */
+int SSL_want_write(const SSL *ssl);
+
 /**
  * @brief get the SSL context current method
  *
diff --git a/components/openssl/include/platform/ssl_pm.h b/components/openssl/include/platform/ssl_pm.h
index cf1d213799..a516d57422 100644
--- a/components/openssl/include/platform/ssl_pm.h
+++ b/components/openssl/include/platform/ssl_pm.h
@@ -42,6 +42,7 @@ OSSL_HANDSHAKE_STATE ssl_pm_get_state(const SSL *ssl);
 
 void ssl_pm_set_bufflen(SSL *ssl, int len);
 
+int x509_pm_show_info(X509 *x);
 int x509_pm_new(X509 *x, X509 *m_x);
 void x509_pm_free(X509 *x);
 int x509_pm_load(X509 *x, const unsigned char *buffer, int len);
diff --git a/components/openssl/library/ssl_methods.c b/components/openssl/library/ssl_methods.c
index 8159511c49..0002360846 100644
--- a/components/openssl/library/ssl_methods.c
+++ b/components/openssl/library/ssl_methods.c
@@ -71,7 +71,7 @@ IMPLEMENT_SSL_METHOD(SSL3_VERSION, -1, TLS_method_func, SSLv3_method);
  */
 IMPLEMENT_X509_METHOD(X509_method,
             x509_pm_new, x509_pm_free,
-            x509_pm_load);
+            x509_pm_load, x509_pm_show_info);
 
 /**
  * @brief get private key object method
diff --git a/components/openssl/library/ssl_x509.c b/components/openssl/library/ssl_x509.c
index d060419e6a..06e6e7b544 100644
--- a/components/openssl/library/ssl_x509.c
+++ b/components/openssl/library/ssl_x509.c
@@ -17,6 +17,14 @@
 #include "ssl_dbg.h"
 #include "ssl_port.h"
 
+/**
+ * @brief show X509 certification information
+ */
+int __X509_show_info(X509 *x)
+{
+    return X509_METHOD_CALL(show_info, x);
+}
+
 /**
  * @brief create a X509 certification object according to input X509 certification
  */
@@ -256,3 +264,4 @@ X509 *SSL_get_peer_certificate(const SSL *ssl)
 
     return ssl->session->peer;
 }
+
diff --git a/components/openssl/platform/ssl_pm.c b/components/openssl/platform/ssl_pm.c
index 4bc631382f..bbe290f2a3 100644
--- a/components/openssl/platform/ssl_pm.c
+++ b/components/openssl/platform/ssl_pm.c
@@ -31,6 +31,8 @@
     #define DEBUG_LOAD_BUF_STRING(str)
 #endif
 
+#define X509_INFO_STRING_LENGTH 1024
+
 struct ssl_pm
 {
     /* local socket file description */
@@ -370,6 +372,42 @@ OSSL_HANDSHAKE_STATE ssl_pm_get_state(const SSL *ssl)
     return state;
 }
 
+int x509_pm_show_info(X509 *x)
+{
+    int ret;
+    char *buf;
+    mbedtls_x509_crt *x509_crt;
+    struct x509_pm *x509_pm = x->x509_pm;
+
+    if (x509_pm->x509_crt)
+        x509_crt = x509_pm->x509_crt;
+    else if (x509_pm->ex_crt)
+        x509_crt = x509_pm->ex_crt;
+    else
+        x509_crt = NULL;
+
+    if (!x509_crt)
+        return -1;
+
+    buf = ssl_malloc(X509_INFO_STRING_LENGTH);
+    if (!buf)
+        SSL_RET(failed1, "");
+
+    ret = mbedtls_x509_crt_info(buf, X509_INFO_STRING_LENGTH - 1, "", x509_crt);
+    if (ret <= 0)
+        SSL_RET(failed2, "");
+    buf[ret] = 0;
+
+    SSL_PRINT("%s", buf);
+
+    return 0;
+
+failed2:
+    ssl_free(buf);
+failed1:
+    return -1;
+}
+
 int x509_pm_new(X509 *x, X509 *m_x)
 {
     struct x509_pm *x509_pm;