Rename .find_message to .read_message. Enforce stricter signature lengths in ::Lexer

dist/pigeon/bundle.rb

@@ -4,7 +4,7 @@ module Pigeon
       s = Pigeon::Storage.current
       content = s
         .find_all(Pigeon::LocalIdentity.current.multihash)
-        .map { |multihash| s.find_message(multihash) }
+        .map { |multihash| s.read_message(multihash) }
         .sort_by(&:depth)
         .map { |message| message.render }
         .join(BUNDLE_MESSAGE_SEPARATOR)

dist/pigeon/lexer.rb

@@ -27,7 +27,7 @@ module Pigeon
     KIND = /kind #{ALPHANUMERICISH}\n/
     BODY_ENTRY = /#{ALPHANUMERICISH}:#{ANY_VALUE}\n/
 
-    FOOTER_ENTRY = /signature .*{87,88}\.sig\.ed25519\n?/
+    FOOTER_ENTRY = /signature .*{103}\.sig\.ed25519\n?/
 
     LEXER_STATES = [HEADER = :header, BODY = :body, FOOTER = :footer]
 

dist/pigeon/message.rb

@@ -46,7 +46,7 @@ module Pigeon
     end
 
     def save!
-      return store.find_message(multihash) if store.message?(multihash)
+      return store.read_message(multihash) if store.message?(multihash)
       calculate_signature
       verify_depth_prev_and_depth
       verify_signature

dist/pigeon/storage.rb

@@ -37,7 +37,7 @@ module Pigeon
       end
     end
 
-    def find_message(multihash)
+    def read_message(multihash)
       read { store[MESG_NS].fetch(multihash) }
     end