From 3d0cde272e3227978c5875c811c93e1e3df692ed Mon Sep 17 00:00:00 2001
From: Justin Santa Barbara <justin@fathomdb.com>
Date: Mon, 14 Mar 2011 21:01:48 -0700
Subject: Clarify the logic in using 32 symbols

---
 nova/utils.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/nova/utils.py b/nova/utils.py
index 9c8b27d56..0510c3cbe 100644
--- a/nova/utils.py
+++ b/nova/utils.py
@@ -267,9 +267,10 @@ def generate_password(length=20):
 
     Believed to be reasonably secure (with a reasonable password length!)
     """
-    # 26 letters, 10 digits = 36
-    # Remove O, 0, I, 1 => 32 digits
-    # 32 digits means we're just using the low 5 bit of each byte
+    # 26 letters, 10 digits = 36 choices
+    # Remove O, 0, I, 1 => 32 choices
+    # 32 choices means we're just using the low 5 bit of each byte,
+    # so there's no bias introduced by using a modulo
     chrs = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789"
 
     random_bytes = os.urandom(length)
-- 
cgit