diff --git a/gpgmeplug/cryptplug.h b/gpgmeplug/cryptplug.h
index 2a4e5f83..592432da 100644
--- a/gpgmeplug/cryptplug.h
+++ b/gpgmeplug/cryptplug.h
@@ -525,6 +525,13 @@ void setSignatureCertificateExpiryNearWarning( bool );
 */
 bool signatureCertificateExpiryNearWarning( void );
 
+    /*! \ingroup groupConfigSign
+      \brief Returns the number of days that are left until the
+      specified certificate expires. 
+      \param certificate the certificate to check
+    */
+    int signatureCertificateDaysLeftToExpiry( const char* certificate );
+
 /*! \ingroup groupConfigSign
    \brief Specifies the number of days which a signature certificate must
    be valid before it is considered to expire in the near
@@ -551,6 +558,13 @@ void setCACertificateExpiryNearWarning( bool );
 */
 bool caCertificateExpiryNearWarning( void );
 
+    /*! \ingroup groupConfigSign
+      \brief Returns the number of days that are left until the
+      CA certificate of the specified certificate expires. 
+      \param certificate the certificate to check
+    */
+    int caCertificateDaysLeftToExpiry( const char* certificate );
+
 /*! \ingroup groupConfigSign
    \brief Specifies the number of days which a CA certificate must
    be valid before it is considered to expire in the near
@@ -577,6 +591,13 @@ void setRootCertificateExpiryNearWarning( bool );
 */
 bool rootCertificateExpiryNearWarning( void );
 
+    /*! \ingroup groupConfigSign
+      \brief Returns the number of days that are left until the
+      root certificate of the specified certificate expires. 
+      \param certificate the certificate to check
+    */
+    int rootCertificateDaysLeftToExpiry( const char* certificate );
+
 /*! \ingroup groupConfigSign
    \brief Specifies the number of days which a root certificate must
    be valid before it is considered to expire in the near
diff --git a/gpgmeplug/gpgmeplug.c b/gpgmeplug/gpgmeplug.c
index b09eb7b7..3c73b4c7 100644
--- a/gpgmeplug/gpgmeplug.c
+++ b/gpgmeplug/gpgmeplug.c
@@ -408,6 +408,17 @@ bool signatureCertificateExpiryNearWarning( void )
   return config.signatureCertificateExpiryNearWarning;
 }
 
+
+int signatureCertificateDaysLeftToExpiry( const char* certificate )
+{
+    /* PENDING(g10)
+       Please return the number of days that are left until the
+       certificate specified in the parameter certificate expires.
+    */
+    return 10; // dummy that triggers a warning in the MUA
+}
+
+
 void setSignatureCertificateExpiryNearInterval( int interval )
 {
   config.signatureCertificateExpiryNearInterval = interval;
@@ -428,6 +439,16 @@ bool caCertificateExpiryNearWarning( void )
   return config.cACertificateExpiryNearWarning;
 }
 
+int caCertificateDaysLeftToExpiry( const char* certificate )
+{
+    /* PENDING(g10)
+       Please return the number of days that are left until the
+       CA certificate for the certificate specified in the parameter
+       certificate expires.
+    */
+    return 10; // dummy that triggers a warning in the MUA
+}
+
 void setCACertificateExpiryNearInterval( int interval )
 {
   config.cACertificateExpiryNearInterval = interval;
@@ -448,6 +469,17 @@ bool rootCertificateExpiryNearWarning( void )
   return config.rootCertificateExpiryNearWarning;
 }
 
+int rootCertificateDaysLeftToExpiry( const char* certificate )
+{
+    /* PENDING(g10)
+       Please return the number of days that are left until the
+       root certificate for the certificate specified in the parameter
+       certificate expires.
+    */
+    return 10; // dummy that triggers a warning in the MUA
+}
+
+
 void setRootCertificateExpiryNearInterval( int interval )
 {
   config.rootCertificateExpiryNearInterval = interval;