diff --git a/decrypt.html b/decrypt.html
index 33938cd..8de1f4b 100644
--- a/decrypt.html
+++ b/decrypt.html
@@ -22,6 +22,7 @@
     const encrypted = document.getElementById("pgpMsg").value
 
     const privKeyObj = (await openpgp.key.readArmored(privkey)).keys[0]
+
     if (passphrase) {
       await privKeyObj.decrypt(passphrase)
     }
@@ -32,14 +33,12 @@
     }
 
     openpgp.decrypt(options).then(plaintext => {
-      if (plaintext.data) {
-        document.getElementById("result").value = plaintext.data;
-        document.getElementById("progressbar").className = "progress-bar bg-success";
-      } else {
-        document.getElementById("result").value = 'Error decrypting message.';
-        document.getElementById("progressbar").className = "progress-bar bg-danger";
-      }
-    })
+      document.getElementById("result").value = plaintext.data;
+      document.getElementById("progressbar").className = "progress-bar bg-success";
+    }).catch(function(error){
+      document.getElementById("result").value = error.message;
+      document.getElementById("progressbar").className = "progress-bar bg-danger";
+    });
   }
   </script>
   <style>
diff --git a/encrypt.html b/encrypt.html
index d1ddde1..b5878dd 100644
--- a/encrypt.html
+++ b/encrypt.html
@@ -19,21 +19,25 @@
     // put keys in backtick (``) to avoid errors caused by spaces or tabs
     const pubkey = document.getElementById("pubKey").value
 
-    const options = {
+    let options;
+    try {
+      options = {
         message: openpgp.message.fromText(document.getElementById("text").value),       // input as Message object
         publicKeys: (await openpgp.key.readArmored(pubkey)).keys, // for encryption
+      }
+    } catch (err) {
+      document.getElementById("result").value = err.message;
+      document.getElementById("progressbar").className = "progress-bar bg-danger";
     }
 
     openpgp.encrypt(options).then(ciphertext => {
         encrypted = ciphertext.data // '-----BEGIN PGP MESSAGE ... END PGP MESSAGE-----'
-        if (encrypted) {
-          document.getElementById("result").value = encrypted;
-          document.getElementById("progressbar").className = "progress-bar bg-success";
-        } else {
-          document.getElementById("result").value = 'Encryption failed.';
-          document.getElementById("progressbar").className = "progress-bar bg-danger";
-        }
-    })
+        document.getElementById("result").value = encrypted;
+        document.getElementById("progressbar").className = "progress-bar bg-success";
+    }).catch(function(error){
+      document.getElementById("result").value = error.message;
+      document.getElementById("progressbar").className = "progress-bar bg-danger";
+    });
   }
   </script>
   <style>
diff --git a/gen.html b/gen.html
index 7c64ba5..c0b7428 100644
--- a/gen.html
+++ b/gen.html
@@ -30,6 +30,10 @@
       document.getElementById("privkey").value = privkey;
       document.getElementById("pubkey").value = pubkey;
       document.getElementById("progressbar").className = "progress-bar bg-success";
+    }).catch(function(error){
+      document.getElementById("pubkey").value = error.message;
+      document.getElementById("privKey").value = error.message;
+      document.getElementById("progressbar").className = "progress-bar bg-danger";
     });
   }
   </script>
diff --git a/sign.html b/sign.html
index ff5b9d2..035cc08 100644
--- a/sign.html
+++ b/sign.html
@@ -22,26 +22,29 @@
     const passphrase = document.getElementById("pass").value
     const msg = document.getElementById("msg").value
 
-    const privKeyObj = (await openpgp.key.readArmored(privkey)).keys[0]
-
-    if (passphrase) {
-      await privKeyObj.decrypt(passphrase)
+    let privKeyObj;
+    let options;
+    try {
+      privKeyObj = (await openpgp.key.readArmored(privkey)).keys[0]
+      if (passphrase) {
+        await privKeyObj.decrypt(passphrase)
+      }
+      options = {
+        message: openpgp.cleartext.fromText(msg), // CleartextMessage or Message object
+        privateKeys: [privKeyObj]                             // for signing
+      };
+    } catch (err) {
+      document.getElementById("result").value = err.message;
+      document.getElementById("progressbar").className = "progress-bar bg-danger";
     }
 
-    options = {
-      message: openpgp.cleartext.fromText(msg), // CleartextMessage or Message object
-      privateKeys: [privKeyObj]                             // for signing
-    };
-
     openpgp.sign(options).then(function(signed) {
-      if (signed.data) {
-        cleartext = signed.data; // '-----BEGIN PGP SIGNED MESSAGE ... END PGP SIGNATURE-----'
-        document.getElementById("result").value = cleartext;
-        document.getElementById("progressbar").className = "progress-bar bg-success";
-      } else {
-        document.getElementById("result").value = 'Signing failed.';
-        document.getElementById("progressbar").className = "progress-bar bg-danger";
-      }
+      cleartext = signed.data; // '-----BEGIN PGP SIGNED MESSAGE ... END PGP SIGNATURE-----'
+      document.getElementById("result").value = cleartext;
+      document.getElementById("progressbar").className = "progress-bar bg-success";
+    }).catch(function(error){
+      document.getElementById("result").value = error.message;
+      document.getElementById("progressbar").className = "progress-bar bg-danger";
     });
   }
   </script>
diff --git a/verify.html b/verify.html
index 6261fea..928cd8c 100644
--- a/verify.html
+++ b/verify.html
@@ -20,20 +20,24 @@
     const pubkey = document.getElementById("pubKey").value
     const cleartext = document.getElementById("signMsg").value
 
-    options = {
-        message: await openpgp.cleartext.readArmored(cleartext), // parse armored message
-        publicKeys: (await openpgp.key.readArmored(pubkey)).keys // for verification
-    };
+    let options;
+    try {
+      options = {
+          message: await openpgp.cleartext.readArmored(cleartext), // parse armored message
+          publicKeys: (await openpgp.key.readArmored(pubkey)).keys // for verification
+      }
+    } catch (err) {
+      document.getElementById("result").value = err.message;
+      document.getElementById("progressbar").className = "progress-bar bg-danger";
+    }
 
     openpgp.verify(options).then(function(verified) {
     	validity = verified.signatures[0].valid; // true
-    	if (validity) {
-    		document.getElementById("result").value = 'Signed by key id ' + verified.signatures[0].keyid.toHex();
-        document.getElementById("progressbar").className = "progress-bar bg-success";
-    	} else {
-        document.getElementById("progressbar").className = "progress-bar bg-danger";
-        document.getElementById("result").value = 'Verification wrong or failed. DO NOT TRUST.';
-      }
+    	document.getElementById("result").value = 'Signed by key id ' + verified.signatures[0].keyid.toHex();
+      document.getElementById("progressbar").className = "progress-bar bg-success";
+    }).catch(function(error){
+      document.getElementById("result").value = error.message;
+      document.getElementById("progressbar").className = "progress-bar bg-danger";
     });
   }
   </script>