diff --git a/src/security/signing-info.hpp b/src/security/signing-info.hpp
index 499f25b..6284644 100644
--- a/src/security/signing-info.hpp
+++ b/src/security/signing-info.hpp
@@ -24,6 +24,8 @@
 
 #include "../name.hpp"
 #include "../signature-info.hpp"
+#include "pib/identity.hpp"
+#include "pib/key.hpp"
 #include "security-common.hpp"
 
 
@@ -32,6 +34,9 @@
 
 /**
  * @brief Signing parameters passed to KeyChain
+ *
+ * A SigningInfo is invalid if the specified identity/key/certificate does not exist,
+ * or the PIB Identity or Key instance is not valid.
  */
 class SigningInfo
 {
@@ -56,7 +61,11 @@
     /// @brief signer is a certificate, use it directly
     SIGNER_TYPE_CERT = 3,
     /// @brief use sha256 digest, no signer needs to be specified
-    SIGNER_TYPE_SHA256 = 4
+    SIGNER_TYPE_SHA256 = 4,
+    /// @brief given PIB identity handle, use its default key and default certificate
+    SIGNER_TYPE_PIB_ID = 5,
+    /// @brief given PIB key handle, use its default certificate
+    SIGNER_TYPE_PIB_KEY = 6
   };
 
 public:
@@ -75,6 +84,18 @@
               const SignatureInfo& signatureInfo = getEmptySignatureInfo());
 
   /**
+   * @brief Create a signingInfo using pib identity;
+   */
+  explicit
+  SigningInfo(const Identity& identity);
+
+  /**
+   * @brief Create a signingInfo using pib key;
+   */
+  explicit
+  SigningInfo(const Key& key);
+
+  /**
    * @brief Construct SigningInfo from its string representation
    *
    * @param signingStr The representative signing string for SigningInfo signing method
@@ -118,6 +139,20 @@
   setSha256Signing();
 
   /**
+   * @brief Set signer as a PIB identity handler @p identity
+   * @post Change the signerType to SIGNER_TYPE_PIB_ID
+   */
+  SigningInfo&
+  setPibIdentity(const Identity& identity);
+
+  /**
+   * @brief Set signer as a PIB key handler @p key
+   * @post Change the signerType to SIGNER_TYPE_PIB_KEY
+   */
+  SigningInfo&
+  setPibKey(const Key& key);
+
+  /**
    * @return Type of the signer
    */
   SignerType
@@ -136,6 +171,28 @@
   }
 
   /**
+   * @pre signerType must be SIGNER_TYPE_PIB_ID
+   * @return the identity handler of signer
+   */
+  const Identity&
+  getPibIdentity() const
+  {
+    BOOST_ASSERT(m_type == SIGNER_TYPE_PIB_ID);
+    return m_identity;
+  }
+
+  /**
+   * @pre signerType must be SIGNER_TYPE_PIB_KEY
+   * @return the key handler of signer
+   */
+  const Key&
+  getPibKey() const
+  {
+    BOOST_ASSERT(m_type == SIGNER_TYPE_PIB_KEY);
+    return m_key;
+  }
+
+  /**
    * @brief Set the digest algorithm for public key operations
    */
   SigningInfo&
@@ -185,6 +242,8 @@
 private:
   SignerType m_type;
   Name m_name;
+  Identity m_identity;
+  Key m_key;
   DigestAlgorithm m_digestAlgorithm;
   SignatureInfo m_info;
 };