lib/blind_index.rb in blind_index-2.0.1 vs lib/blind_index.rb in blind_index-2.0.2

@@ -115,17 +115,17 @@
     key = BlindIndex::KeyGenerator.new(master_key).index_key(table: table, bidx_attribute: bidx_attribute)
     key = key.unpack("H*").first if encode
     key
   end
 
-  def self.decode_key(key)
+  def self.decode_key(key, name: "Key")
     # decode hex key
     if key.encoding != Encoding::BINARY && key =~ /\A[0-9a-f]{64}\z/i
       key = [key].pack("H*")
     end
 
-    raise BlindIndex::Error, "Key must use binary encoding" if key.encoding != Encoding::BINARY
-    raise BlindIndex::Error, "Key must be 32 bytes" if key.bytesize != 32
+    raise BlindIndex::Error, "#{name} must be 32 bytes (64 hex digits)" if key.bytesize != 32
+    raise BlindIndex::Error, "#{name} must use binary encoding" if key.encoding != Encoding::BINARY
 
     key
   end
 
   def self.backfill(relation, columns: nil, batch_size: 1000)