add openpgp.key.read() function for unarmored serialized keys

src/key.js

@@ -1060,24 +1060,20 @@ SubKey.prototype.update = function(subKey, primaryKey) {
 };
 
 /**
- * Reads an OpenPGP armored text and returns one or multiple key objects
+ * Reads an unarmored OpenPGP key list and returns one or multiple key objects
- * @param {String} armoredText text to be parsed
+ * @param {Uint8Array} data to be parsed
  * @return {{keys: Array<module:key~Key>, err: (Array<Error>|null)}} result object with key and error arrays
  * @static
  */
-export function readArmored(armoredText) {
+export function read(data) {
   var result = {};
   result.keys = [];
   try {
-    var input = armor.decode(armoredText);
-    if (!(input.type === enums.armor.public_key || input.type === enums.armor.private_key)) {
-      throw new Error('Armored text not of type key');
-    }
     var packetlist = new packet.List();
-    packetlist.read(input.data);
+    packetlist.read(data);
     var keyIndex = packetlist.indexOfTag(enums.packet.publicKey, enums.packet.secretKey);
     if (keyIndex.length === 0) {
-      throw new Error('No key packet found in armored text');
+      throw new Error('No key packet found');
     }
     for (var i = 0; i < keyIndex.length; i++) {
       var oneKeyList = packetlist.slice(keyIndex[i], keyIndex[i + 1]);
@@ -1096,6 +1092,26 @@ export function readArmored(armoredText) {
   return result;
 }
 
+/**
+ * Reads an OpenPGP armored text and returns one or multiple key objects
+ * @param {String} armoredText text to be parsed
+ * @return {{keys: Array<module:key~Key>, err: (Array<Error>|null)}} result object with key and error arrays
+ * @static
+ */
+export function readArmored(armoredText) {
+  try {
+    var input = armor.decode(armoredText);
+    if (!(input.type === enums.armor.public_key || input.type === enums.armor.private_key)) {
+      throw new Error('Armored text not of type key');
+    }
+    return read(input.data);
+  } catch (e) {
+    var result = {keys: [], err: []};
+    result.err.push(e);
+    return result;
+  }
+}
+
 /**
  * Generates a new OpenPGP key. Currently only supports RSA keys.
  * Primary and subkey will be of same type.