--- a/Utilities/PasswordChecker.py Tue Oct 15 22:03:54 2013 +0200
+++ b/Utilities/PasswordChecker.py Fri Oct 18 23:00:41 2013 +0200
@@ -4,7 +4,7 @@
#
"""
-Module implementing a checker for password strength
+Module implementing a checker for password strength.
"""
from __future__ import unicode_literals # __IGNORE_WARNING__
@@ -86,8 +86,10 @@
# long enough. we will skip the redudancy penalty if this
# number is not exceeded (meaning redundancy < this number)
self.redundancy = {
- "value": 1, # 1 means, not double characters, default to start
- "permitted": 2.0, # 2 means, in average every character can occur twice
+ "value": 1, # 1 means, not double characters,
+ # default to start
+ "permitted": 2.0, # 2 means, in average every character
+ # can occur twice
"status": self.Status_Failed,
"rating": 0,
}
@@ -318,9 +320,10 @@
# calculate a redundancy number
self.redundancy["value"] = len(password) / len(uniqueCharacters)
- # Check for sequential alpha string patterns (forward and reverse) but only,
- # if the string has already a length to check for, does not make sense to check
- # the password "ab" for the sequential data "abc"
+ # Check for sequential alpha string patterns (forward and reverse)
+ # but only, if the string has already a length to check for, does
+ # not make sense to check the password "ab" for the sequential data
+ # "abc"
lowercasedPassword = password.lower()
if self.passwordLength["count"] >= self.sequentialLetters["length"]:
@@ -350,8 +353,10 @@
patternsMatched = []
if self.passwordLength["count"] >= self.keyboardPatterns["length"]:
for pattern in self.keyboardPatterns["data"]:
- for index in range(len(pattern) - self.keyboardPatterns["length"] + 1):
- fwd = pattern[index:index + self.keyboardPatterns["length"]]
+ for index in range(
+ len(pattern) - self.keyboardPatterns["length"] + 1):
+ fwd = pattern[index:index +
+ self.keyboardPatterns["length"]]
rev = self.__strReverse(fwd)
if lowercasedPassword.find(fwd) != -1:
if fwd not in patternsMatched:
@@ -366,7 +371,8 @@
if self.passwordLength["count"] >= self.repeatedSequences["length"]:
for index in range(len(lowercasedPassword) - \
self.repeatedSequences["length"] + 1):
- fwd = lowercasedPassword[index:index + self.repeatedSequences["length"]]
+ fwd = lowercasedPassword[
+ index:index + self.repeatedSequences["length"]]
if lowercasedPassword.find(
fwd, index + self.repeatedSequences["length"]) != -1:
self.repeatedSequences["count"] += 1
@@ -375,21 +381,24 @@
if self.passwordLength["count"] >= self.mirroredSequences["length"]:
for index in range(len(lowercasedPassword) - \
self.mirroredSequences["length"] + 1):
- fwd = lowercasedPassword[index:index + self.mirroredSequences["length"]]
+ fwd = lowercasedPassword[
+ index:index + self.mirroredSequences["length"]]
rev = self.__strReverse(fwd)
if lowercasedPassword.find(
fwd, index + self.mirroredSequences["length"]) != -1:
self.mirroredSequences["count"] += 1
# Initial score based on length
- self.score["count"] = self.passwordLength["count"] * self.passwordLength["factor"]
+ self.score["count"] = self.passwordLength["count"] * \
+ self.passwordLength["factor"]
# passwordLength
# credit additional length or punish "under" length
if self.passwordLength["count"] >= self.passwordLength["minimum"]:
# credit additional characters over minimum
self.passwordLength["rating"] = self.passwordLength["bonus"] + \
- (self.passwordLength["count"] - self.passwordLength["minimum"]) * \
+ (self.passwordLength["count"] -
+ self.passwordLength["minimum"]) * \
self.passwordLength["factor"]
else:
self.passwordLength["rating"] = self.passwordLength["penalty"]
@@ -398,7 +407,8 @@
# recommendedPasswordLength
# Credit reaching the recommended password length or put a
# penalty on it
- if self.passwordLength["count"] >= self.recommendedPasswordLength["minimum"]:
+ if self.passwordLength["count"] >= \
+ self.recommendedPasswordLength["minimum"]:
self.recommendedPasswordLength["rating"] = \
self.recommendedPasswordLength["bonus"] + \
(self.passwordLength["count"] - \
@@ -412,8 +422,10 @@
# lowercaseLetters
# Honor or punish the lowercase letter use
if self.lowercaseLetters["count"] > 0:
- self.lowercaseLetters["rating"] = self.lowercaseLetters["bonus"] + \
- self.lowercaseLetters["count"] * self.lowercaseLetters["factor"]
+ self.lowercaseLetters["rating"] = \
+ self.lowercaseLetters["bonus"] + \
+ self.lowercaseLetters["count"] * \
+ self.lowercaseLetters["factor"]
else:
self.lowercaseLetters["rating"] = self.lowercaseLetters["penalty"]
self.score["count"] += self.lowercaseLetters["rating"]
@@ -421,8 +433,10 @@
# uppercaseLetters
# Honor or punish the lowercase letter use
if self.uppercaseLetters["count"] > 0:
- self.uppercaseLetters["rating"] = self.uppercaseLetters["bonus"] + \
- self.uppercaseLetters["count"] * self.uppercaseLetters["factor"]
+ self.uppercaseLetters["rating"] = \
+ self.uppercaseLetters["bonus"] + \
+ self.uppercaseLetters["count"] * \
+ self.uppercaseLetters["factor"]
else:
self.uppercaseLetters["rating"] = self.uppercaseLetters["penalty"]
self.score["count"] += self.uppercaseLetters["rating"]
@@ -466,26 +480,34 @@
# sequentialLetters
# Honor or punish the sequential letter use
if self.sequentialLetters["count"] == 0:
- self.sequentialLetters["rating"] = self.sequentialLetters["bonus"] + \
- self.sequentialLetters["count"] * self.sequentialLetters["factor"]
+ self.sequentialLetters["rating"] = \
+ self.sequentialLetters["bonus"] + \
+ self.sequentialLetters["count"] * \
+ self.sequentialLetters["factor"]
else:
- self.sequentialLetters["rating"] = self.sequentialLetters["penalty"]
+ self.sequentialLetters["rating"] = \
+ self.sequentialLetters["penalty"]
self.score["count"] += self.sequentialLetters["rating"]
# sequentialNumerics
# Honor or punish the sequential numerics use
if self.sequentialNumerics["count"] == 0:
- self.sequentialNumerics["rating"] = self.sequentialNumerics["bonus"] + \
- self.sequentialNumerics["count"] * self.sequentialNumerics["factor"]
+ self.sequentialNumerics["rating"] = \
+ self.sequentialNumerics["bonus"] + \
+ self.sequentialNumerics["count"] * \
+ self.sequentialNumerics["factor"]
else:
- self.sequentialNumerics["rating"] = self.sequentialNumerics["penalty"]
+ self.sequentialNumerics["rating"] = \
+ self.sequentialNumerics["penalty"]
self.score["count"] += self.sequentialNumerics["rating"]
# keyboardPatterns
# Honor or punish the keyboard patterns use
if self.keyboardPatterns["count"] == 0:
- self.keyboardPatterns["rating"] = self.keyboardPatterns["bonus"] + \
- self.keyboardPatterns["count"] * self.keyboardPatterns["factor"]
+ self.keyboardPatterns["rating"] = \
+ self.keyboardPatterns["bonus"] + \
+ self.keyboardPatterns["count"] * \
+ self.keyboardPatterns["factor"]
else:
self.keyboardPatterns["rating"] = self.keyboardPatterns["penalty"]
self.score["count"] += self.keyboardPatterns["rating"]
@@ -530,13 +552,16 @@
# judge the requirement status
self.basicRequirements["status"] = self.__determineStatus(
- self.basicRequirements["count"] - self.basicRequirements["minimum"])
+ self.basicRequirements["count"] -
+ self.basicRequirements["minimum"])
if self.basicRequirements["status"] != self.Status_Failed:
self.basicRequirements["rating"] = \
self.basicRequirements["bonus"] + \
- self.basicRequirements["factor"] * self.basicRequirements["count"]
+ self.basicRequirements["factor"] * \
+ self.basicRequirements["count"]
else:
- self.basicRequirements["rating"] = self.basicRequirements["penalty"]
+ self.basicRequirements["rating"] = \
+ self.basicRequirements["penalty"]
self.score["count"] += self.basicRequirements["rating"]
# beyond basic requirements
@@ -565,18 +590,22 @@
# repeatedSequences
# Honor or punish the use of repeated sequences
if self.repeatedSequences["count"] == 0:
- self.repeatedSequences["rating"] = self.repeatedSequences["bonus"]
+ self.repeatedSequences["rating"] = \
+ self.repeatedSequences["bonus"]
else:
- self.repeatedSequences["rating"] = self.repeatedSequences["penalty"] + \
+ self.repeatedSequences["rating"] = \
+ self.repeatedSequences["penalty"] + \
self.repeatedSequences["count"] * \
self.repeatedSequences["factor"]
# mirroredSequences
# Honor or punish the use of mirrored sequences
if self.mirroredSequences["count"] == 0:
- self.mirroredSequences["rating"] = self.mirroredSequences["bonus"]
+ self.mirroredSequences["rating"] = \
+ self.mirroredSequences["bonus"]
else:
- self.mirroredSequences["rating"] = self.mirroredSequences["penalty"] + \
+ self.mirroredSequences["rating"] = \
+ self.mirroredSequences["penalty"] + \
self.mirroredSequences["count"] * \
self.mirroredSequences["factor"]
@@ -586,7 +615,8 @@
# apply the redundancy
# is the password length requirement fulfilled?
if self.recommendedPasswordLength["status"] != self.Status_Exceeded:
- # full penalty, because password is not long enough, only for a positive score
+ # full penalty, because password is not long enough, only for
+ # a positive score
if self.score["count"] > 0:
self.score["count"] *= 1.0 / self.redundancy["value"]
