org.sellcom.core.security.password

Class SyntaxRulesPasswordStrengthPolicy

java.lang.Object

org.sellcom.core.security.password.SyntaxRulesPasswordStrengthPolicy

All Implemented Interfaces:

Predicate<char[]>, PasswordStrengthPolicy

public class SyntaxRulesPasswordStrengthPolicy
extends Object
implements PasswordStrengthPolicy

Password strength policy based on syntax rules.

Example

 SyntaxRulesPasswordStrengthPolicy policy = SyntaxRulesPasswordStrengthPolicy.create()
     .withRule(StandardSyntaxRules.length(8, 4.0))
     .withRule(StandardSyntaxRules.characterClasses(3, 2.0))
     .withRule(StandardSyntaxRules.upperCaseLetters(1.0))
     .withRule(StandardSyntaxRules.lowerCaseLetters(1.0))
     .withRule(StandardSyntaxRules.digits(4.0))
     .withRule(StandardSyntaxRules.moreCommonSpecialChars(4.0))
     .withRule(StandardSyntaxRules.lessCommonSpecialChars(8.0))
     .withRule(StandardSyntaxRules.midDigits(2.0))
     .withRule(StandardSyntaxRules.midMoreCommonSpecialChars(2.0))
     .withRule(StandardSyntaxRules.midLessCommonSpecialChars(2.0))
     .withRule(StandardSyntaxRules.lettersOnly(-1.0))
     .withRule(StandardSyntaxRules.digitsOnly(-1.0))
     .withRule(StandardSyntaxRules.consecutiveUpperCaseLetters(-2.0))
     .withRule(StandardSyntaxRules.consecutiveLowerCaseLetters(-2.0))
     .withRule(StandardSyntaxRules.consecutiveDigits(-2.0))
     .withRule(StandardSyntaxRules.sequentialLetters(3, -3.0))
     .withRule(StandardSyntaxRules.sequentialDigits(3, -3.0))
     .withRule(StandardSyntaxRules.sequentialSpecialChars(3, -3.0))
     .withMinScore(60);

 if (!policy.test(password)) {
     // Reject password
 }
 

Since:

1.0

Constructor Summary

Constructors

Constructor and Description
SyntaxRulesPasswordStrengthPolicy()

Method Summary

Modifier and Type	Method and Description
SyntaxRulesPasswordStrengthPolicy	create() Returns an empty character classes password policy.
boolean	test(char[] password) Test whether the given password satisfies this strength policy.
SyntaxRulesPasswordStrengthPolicy	withMinScore(double minScore) Sets the minimum score of this policy.
SyntaxRulesPasswordStrengthPolicy	withRule(ToDoubleFunction<char[]> rule) Adds the given rule to this policy.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.function.Predicate

and, isEqual, negate, or

Constructor Detail

SyntaxRulesPasswordStrengthPolicy

public SyntaxRulesPasswordStrengthPolicy()

Method Detail

create

public SyntaxRulesPasswordStrengthPolicy create()

Returns an empty character classes password policy.

Since:

1.0

test

public boolean test(char[] password)

Description copied from interface: PasswordStrengthPolicy

Test whether the given password satisfies this strength policy.

Specified by:

test in interface Predicate<char[]>

Specified by:

test in interface PasswordStrengthPolicy

withMinScore

public SyntaxRulesPasswordStrengthPolicy withMinScore(double minScore)

Sets the minimum score of this policy.

Throws:

new - IllegalArgumentException if minScore is negative

Since:

1.0

withRule

public SyntaxRulesPasswordStrengthPolicy withRule(ToDoubleFunction<char[]> rule)

Adds the given rule to this policy.

Throws:

new - IllegalArgumentException if minLength is negative

Since:

1.0