diff --git a/K7Main.cpp b/K7Main.cpp
index 5072ac2..58c3052 100644
--- a/K7Main.cpp
+++ b/K7Main.cpp
@@ -250,6 +250,7 @@ void K7Main::DisplayKeys(const vector<GpgME::Key>& kList, const WString& grpLabe
     {
         const GpgME::Key k = kList.at(i);
         WTreeTableNode * keyNode = new WTreeTableNode(k.userID(0).name());
+        keyNode->setToolTip(Tools::GetKeyStatus(k));
         WLink ln;
         ln.setUrl(WString(L"javascript:void(0)").toUTF8());
         WAnchor * anc = new WAnchor(ln, k.shortKeyID());
@@ -317,6 +318,7 @@ void K7Main::DisplayUids(const WString& fullKeyID, bool secret)
     {
         UserID uid = k.userID(i);
         WTreeTableNode * uidNode = new WTreeTableNode(uid.name());
+        uidNode->setToolTip(Tools::GetUidStatus(uid));
         TreeTableNodeText * ttntUidEmail = new TreeTableNodeText(uid.email(), uidNode, 1);
         uidNode->setColumnWidget(1, unique_ptr<TreeTableNodeText> (ttntUidEmail));
         // Show key certify popup on double click
@@ -336,6 +338,7 @@ void K7Main::DisplayUids(const WString& fullKeyID, bool secret)
             const WString signer = WString(sig.signerName()) + _SPACE_
                     + WString(sig.signerKeyID());
             WTreeTableNode * sigNode = new WTreeTableNode(signer);
+            sigNode->setToolTip(Tools::GetSigStatus(sig));
             TreeTableNodeText * ttntEmail = new TreeTableNodeText(sig.signerEmail(), sigNode, 1);
             sigNode->setColumnWidget(1, unique_ptr<TreeTableNodeText> (ttntEmail));
             WString exp = TR("Expiration") + _SPACE_ + _COLON_ + _SPACE_;
@@ -376,6 +379,7 @@ void K7Main::DisplaySubKeys(const WString& fullKeyID, bool secret)
     {
         Subkey sk = k.subkey(i);
         WTreeTableNode * skNode = new WTreeTableNode(sk.keyID());
+        skNode->setToolTip(Tools::GetKeyStatus(k));
         TreeTableNodeText * ttntFpr = new TreeTableNodeText(sk.fingerprint(), skNode, 1);
         skNode->setColumnWidget(1, unique_ptr<TreeTableNodeText> (ttntFpr));
         WString exp = sk.neverExpires() ? TR("Never") : MakeDateTimeLabel(sk.expirationTime());
diff --git a/Tools.cpp b/Tools.cpp
index 7f82882..2ab3add 100644
--- a/Tools.cpp
+++ b/Tools.cpp
@@ -33,3 +33,59 @@ int Tools::ToInt(const string& s) {
     buffer >> num;
     return num;
 }
+
+WString Tools::TexttualBool(bool value)
+{
+    const WString res = value
+                ? WString::tr("Yes")
+                : WString::tr("No");
+    return res;
+}
+
+WString Tools::GetKeyStatus(const GpgME::Key& k)
+{
+    const WString nl("\n");
+    const WString sep(" : ");
+    WString status(WString::tr("KeyStatusFor"));
+    status += WString(" ");
+    status += WString(k.keyID()) + WString(" :") + nl + nl;
+    status += WString(WString::tr("KeyStatusIsBad")) + sep + TexttualBool(k.isBad()) + nl;
+    status += WString(WString::tr("KeyStatusIsNull")) + sep + TexttualBool(k.isBad()) + nl;
+    status += WString(WString::tr("KeyStatusIsInvalid")) + sep + TexttualBool(k.isBad()) + nl;
+    status += WString(WString::tr("KeyStatusIsDisabled")) + sep + TexttualBool(k.isBad()) + nl;
+    status += WString(WString::tr("KeyStatusIsExpired")) + sep + TexttualBool(k.isBad()) + nl;
+    status += WString(WString::tr("KeyStatusIsRevoked")) + sep + TexttualBool(k.isBad());
+    
+    return status;
+}
+
+WString Tools::GetUidStatus(const GpgME::UserID& uid)
+{
+    const WString nl("\n");
+    const WString sep(" : ");
+    WString status(WString::tr("UserStatus"));
+    status += WString(" :") + nl + nl;
+    status += WString(WString::tr("UserStatusIsBad")) + sep + TexttualBool(uid.isBad()) + nl;
+    status += WString(WString::tr("UserStatusIsNull")) + sep + TexttualBool(uid.isBad()) + nl;
+    status += WString(WString::tr("UserStatusIsInvalid")) + sep + TexttualBool(uid.isBad()) + nl;
+    status += WString(WString::tr("UserStatusIsRevoked")) + sep + TexttualBool(uid.isBad());
+    
+    return status;
+}
+
+WString Tools::GetSigStatus(const GpgME::UserID::Signature& sig)
+{
+    const WString nl("\n");
+    const WString sep(" : ");
+    WString status(WString::tr("SigStatus"));
+    status += WString(" :") + nl + nl;
+    status += WString(WString::tr("SigStatusIsBad")) + sep + TexttualBool(sig.isBad()) + nl;
+    status += WString(WString::tr("SigStatusIsNull")) + sep + TexttualBool(sig.isBad()) + nl;
+    status += WString(WString::tr("SigStatusIsInvalid")) + sep + TexttualBool(sig.isBad()) + nl;
+    status += WString(WString::tr("SigStatusIsExportable")) + sep + TexttualBool(sig.isBad()) + nl;
+    status += WString(WString::tr("SigStatusIsExpired")) + sep + TexttualBool(sig.isBad()) + nl;
+    status += WString(WString::tr("SigStatusIsRevokation")) + sep + TexttualBool(sig.isBad());
+    
+    return status;
+}
+
diff --git a/Tools.h b/Tools.h
index ab01b79..54258dd 100644
--- a/Tools.h
+++ b/Tools.h
@@ -38,6 +38,12 @@ public:
      */
     static int ToInt(const string& s);
     
+    static WString TexttualBool(bool value);
+    
+    static WString GetKeyStatus(const GpgME::Key& k);
+    static WString GetUidStatus(const GpgME::UserID& uid);
+    static WString GetSigStatus(const GpgME::UserID::Signature& sig);
+    
 private:
 
 };
diff --git a/WTAPPROOT/K7/K7.xml b/WTAPPROOT/K7/K7.xml
index b30b2a1..466821b 100644
--- a/WTAPPROOT/K7/K7.xml
+++ b/WTAPPROOT/K7/K7.xml
@@ -81,4 +81,27 @@
     <message id='CertificationFailure'>Key certification failed</message>
     
     <message id='PrepareCopy'>Click to be able to copy next</message>
+    
+    <message id='KeyStatusFor'>Status for key</message>
+    <message id='KeyStatusIsBad'>Bad</message>
+    <message id='KeyStatusIsNull'>Null</message>
+    <message id='KeyStatusIsInvalid'>Invalid</message>
+    <message id='KeyStatusIsDisabled'>Disabled</message>
+    <message id='KeyStatusIsExpired'>Expired</message>
+    <message id='KeyStatusIsRevoked'>Revoked</message>
+    
+    <message id='UserStatus'>User status</message>
+    <message id='UserStatusIsBad'>Bad</message>
+    <message id='UserStatusIsNull'>Null</message>
+    <message id='UserStatusIsInvalid'>Invalid</message>
+    <message id='UserStatusIsRevoked'>Revoked</message>
+    
+    <message id='SigStatus'>Signature status</message>
+    <message id='SigStatusIsBad'>Bad</message>
+    <message id='SigStatusIsNull'>Null</message>
+    <message id='SigStatusIsInvalid'>Invalid</message>
+    <message id='SigStatusIsExportable'>Exportable</message>
+    <message id='SigStatusIsExpired'>Expired</message>
+    <message id='SigStatusIsRevokation'>Revokation</message>
+    
  </messages>
\ No newline at end of file
diff --git a/WTAPPROOT/K7/K7_fr.xml b/WTAPPROOT/K7/K7_fr.xml
index fd259da..5fb99ec 100644
--- a/WTAPPROOT/K7/K7_fr.xml
+++ b/WTAPPROOT/K7/K7_fr.xml
@@ -81,4 +81,27 @@
     <message id='CertificationFailure'>Échec de certification de la clé</message>
     
     <message id='PrepareCopy'>Cliquez pour pouvoir ensuite copier</message>
+    
+    <message id='KeyStatusFor'>État de la clé</message>
+    <message id='KeyStatusIsBad'>Mauvais</message>
+    <message id='KeyStatusIsNull'>Null</message>
+    <message id='KeyStatusIsInvalid'>Invalide</message>
+    <message id='KeyStatusIsDisabled'>Désactivé</message>
+    <message id='KeyStatusIsExpired'>Expiré</message>
+    <message id='KeyStatusIsRevoked'>Revoqué</message>
+    
+    <message id='UserStatus'>État de l'utilisateur</message>
+    <message id='UserStatusIsBad'>Mauvais</message>
+    <message id='UserStatusIsNull'>Null</message>
+    <message id='UserStatusIsInvalid'>Invalide</message>
+    <message id='UserStatusIsRevoked'>Revoqué</message>
+    
+    <message id='SigStatus'>État de la signature</message>
+    <message id='SigStatusIsBad'>Mauvais</message>
+    <message id='SigStatusIsNull'>Null</message>
+    <message id='SigStatusIsInvalid'>Invalide</message>
+    <message id='SigStatusIsExportable'>Exportable</message>
+    <message id='SigStatusIsExpired'>Expiré</message>
+    <message id='SigStatusIsRevokation'>Revocation</message>
+    
  </messages>