formatter.rb in securerandom-0.3.2

- old
+ new

@@ -163,17 +163,17 @@
   # The version 4 UUID is purely random (except the version).
   # It doesn't contain meaningful information such as MAC addresses, timestamps, etc.
   #
   # The result contains 122 random bits (15.25 random bytes).
   #
-  # See RFC4122[https://datatracker.ietf.org/doc/html/rfc4122] for details of UUID.
+  # See RFC9562[https://www.rfc-editor.org/rfc/rfc9562] for details of UUIDv4.
   #
   def uuid
-    ary = random_bytes(16).unpack("NnnnnN")
-    ary[2] = (ary[2] & 0x0fff) | 0x4000
-    ary[3] = (ary[3] & 0x3fff) | 0x8000
-    "%08x-%04x-%04x-%04x-%04x%08x" % ary
+    ary = random_bytes(16)
+    ary.setbyte(6, (ary.getbyte(6) & 0x0f) | 0x40)
+    ary.setbyte(8, (ary.getbyte(8) & 0x3f) | 0x80)
+    ary.unpack("H8H4H4H4H12").join(?-)
   end
 
   alias uuid_v4 uuid
 
   # Generate a random v7 UUID (Universally Unique IDentifier).
@@ -199,15 +199,14 @@
   # records, which may have a significant performance benefit compared to random
   # data inserts.
   #
   # The result contains 74 random bits (9.25 random bytes).
   #
-  # Note that this method cannot be made reproducable because its output
+  # Note that this method cannot be made reproducible because its output
   # includes not only random bits but also timestamp.
   #
-  # See draft-ietf-uuidrev-rfc4122bis[https://datatracker.ietf.org/doc/draft-ietf-uuidrev-rfc4122bis/]
-  # for details of UUIDv7.
+  # See RFC9562[https://www.rfc-editor.org/rfc/rfc9562] for details of UUIDv7.
   #
   # ==== Monotonicity
   #
   # UUIDv7 has millisecond precision by default, so multiple UUIDs created
   # within the same millisecond are not issued in monotonically increasing
@@ -240,10 +239,10 @@
   # a "leap smear" approach.  NTP or PTP will also be needed to synchronize
   # across distributed nodes.
   #
   # Counters and other mechanisms for stronger guarantees of monotonicity are
   # not implemented.  Applications with stricter requirements should follow
-  # {Section 6.2}[https://www.ietf.org/archive/id/draft-ietf-uuidrev-rfc4122bis-07.html#monotonicity_counters]
+  # {Section 6.2}[https://www.rfc-editor.org/rfc/rfc9562.html#name-monotonicity-and-counters]
   # of the specification.
   #
   def uuid_v7(extra_timestamp_bits: 0)
     case (extra_timestamp_bits = Integer(extra_timestamp_bits))
     when 0 # min timestamp precision