From a91fb4149b7c5e8db8a3ea14f26210c2c3131c07 Mon Sep 17 00:00:00 2001
From: Miroslav Stampar <miroslav.stampar@gmail.com>
Date: Wed, 5 Nov 2014 10:56:30 +0100
Subject: [PATCH] Minor update (using lower frequency alphabet for kb.chars)

---
 lib/core/option.py   | 5 +++--
 lib/core/settings.py | 3 +++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/core/option.py b/lib/core/option.py
index 21fe4f8c9..392d5eb19 100644
--- a/lib/core/option.py
+++ b/lib/core/option.py
@@ -106,6 +106,7 @@ from lib.core.settings import DUMMY_URL
 from lib.core.settings import INJECT_HERE_MARK
 from lib.core.settings import IS_WIN
 from lib.core.settings import KB_CHARS_BOUNDARY_CHAR
+from lib.core.settings import KB_CHARS_LOW_FREQUENCY_ALPHABET
 from lib.core.settings import LOCALHOST
 from lib.core.settings import MAX_CONNECT_RETRIES
 from lib.core.settings import MAX_NUMBER_OF_THREADS
@@ -1643,8 +1644,8 @@ def _setKnowledgeBaseAttributes(flushAll=True):
 
     kb.chars = AttribDict()
     kb.chars.delimiter = randomStr(length=6, lowercase=True)
-    kb.chars.start = "%s%s%s" % (KB_CHARS_BOUNDARY_CHAR, randomStr(length=3, lowercase=True), KB_CHARS_BOUNDARY_CHAR)
-    kb.chars.stop = "%s%s%s" % (KB_CHARS_BOUNDARY_CHAR, randomStr(length=3, lowercase=True), KB_CHARS_BOUNDARY_CHAR)
+    kb.chars.start = "%s%s%s" % (KB_CHARS_BOUNDARY_CHAR, randomStr(length=3, alphabet=KB_CHARS_LOW_FREQUENCY_ALPHABET), KB_CHARS_BOUNDARY_CHAR)
+    kb.chars.stop = "%s%s%s" % (KB_CHARS_BOUNDARY_CHAR, randomStr(length=3, alphabet=KB_CHARS_LOW_FREQUENCY_ALPHABET), KB_CHARS_BOUNDARY_CHAR)
     kb.chars.at, kb.chars.space, kb.chars.dollar, kb.chars.hash_ = ("%s%s%s" % (KB_CHARS_BOUNDARY_CHAR, _, KB_CHARS_BOUNDARY_CHAR) for _ in randomStr(length=4, lowercase=True))
 
     kb.columnExistsChoice = None
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 381ee15b1..ebd6a5153 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -624,6 +624,9 @@ BRUTE_DOC_ROOT_TARGET_MARK = "%TARGET%"
 # Character used as a boundary in kb.chars (preferably less frequent letter)
 KB_CHARS_BOUNDARY_CHAR = 'q'
 
+# Letters of lower frequency used in kb.chars
+KB_CHARS_LOW_FREQUENCY_ALPHABET = "zqxjkvbp"
+
 # CSS style used in HTML dump format
 HTML_DUMP_CSS_STYLE = """<style>
 table{