keys.rb in universa-0.1.7

- old
+ new

@@ -3,9 +3,22 @@
   # A +com.icodici.crypto.PrivateKey+ extension. As the key is immutable,
   # caching is used to avoid innecessary UMI calls.
   class PrivateKey < RemoteAdapter
     remote_class 'com.icodici.crypto.PrivateKey'
 
+    # Load key from packed, optinally, using the password
+    #
+    # @param [String] packed binary string with packed key
+    # @param [String] password optional password
+    def self.from_packed(packed, password: nil)
+      packed.force_encoding 'binary'
+      if password
+        invoke_static "unpackWithPassword", packed, password
+      else
+        PrivateKey.new packed
+      end
+    end
+
     # @return [KeyAddress] short address of the corresponding public key
     def short_address
       @short_address ||= public_key.short_address
     end
 