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Passay is a Java based Password generation and validation library. It provides comprehensive features list in order to validate/generate passwords and is highly configurable.
Passay Components
Passay API has 3 core components.
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Rule − one or more rules which define a password policy rule set.
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PasswordValidator − A validator component which validates a password against a given rule set.
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PasswordGenerator − A generator component which produces passwords to satisfy a given rule set.
Rule overview
Rules are the foundation blocks for both password validation and generation. There are two broad categories of rules:
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Positive match require that passwords satisfy a rule.
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Negative match reject passwords that satisfy a rule.
Features
Following are some of the features that Passay library provides.
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Password Validation − Passay library helps in enforcing a password policy by validating passwords against a configurable rule set. It has a rich set of existing rules for common use-cases. For additional cases, it provides a simple Rule interface to implement the custom rule.
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Password Generation − It provides a configurable rule set which can be used to generate passwords as well.
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Command Line Tools − It provides tools to automate password policy enforcement.
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convenient − Easy to use.
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Extensible − All Passay components are extensible.
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Supports Internalization – Passay components are internationalization ready.
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