Package org.trustdeck.algorithms

Class RandomAlphabetPseudonymizer

java.lang.Object

org.trustdeck.algorithms.Pseudonymizer

org.trustdeck.algorithms.RandomAlphabetPseudonymizer

public class RandomAlphabetPseudonymizer
extends Pseudonymizer

This class provides a pseudonymization by assigning random letters as pseudonyms.

Author:

Armin Müller

Field Summary

Fields inherited from class org.trustdeck.algorithms.Pseudonymizer

DEFAULT_NUMBER_OF_RETRIES, DEFAULT_PADDING_CHAR, DEFAULT_VALUE_LENGTH, DOMAIN_FULL, PSEUDONYMIZATION_FAILED

Constructor Summary

Constructors

Constructor	Description
RandomAlphabetPseudonymizer(boolean paddingWanted, int pseudonymValueLength, char paddingChar, String domainName, int numberOfRetries, String alphabet)	A constructor that allows to set whether or not the created pseudonyms should be padded as well as the desired pseudonym value length and the character used for padding.
RandomAlphabetPseudonymizer(boolean paddingWanted, int pseudonymValueLength, char paddingChar, String domainName, String alphabet)	A constructor that allows to set whether or not the created pseudonyms should be padded as well as the desired pseudonym value length and the character used for padding.
RandomAlphabetPseudonymizer(boolean paddingWanted, Algorithm algorithm)	Basic constructor.
RandomAlphabetPseudonymizer(boolean paddingWanted, Domain domain)	Basic constructor.
RandomAlphabetPseudonymizer(String alphabet)	Basic constructor.
RandomAlphabetPseudonymizer(String domainName, String alphabet)	Basic constructor.

Method Summary

Modifier and Type	Method	Description
String	pseudonymize(String identifier, String domainPrefix)	Creates a random character pseudonym for the given identifier.

Methods inherited from class org.trustdeck.algorithms.Pseudonymizer

addCheckDigit, addPadding, correctPseudonymLength, persist

Methods inherited from class java.lang.Object

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

Constructor Details

RandomAlphabetPseudonymizer

public RandomAlphabetPseudonymizer(String alphabet)

Basic constructor. Padding is turned off. (The pseudonym value length is automatically set to the default, as well as the padding character.)

RandomAlphabetPseudonymizer

public RandomAlphabetPseudonymizer(String domainName,
 String alphabet)

Basic constructor. Padding is turned off. (The pseudonym value length is automatically set to the default, as well as the padding character.)

Parameters:

domainName - the name of the domain to which the record belongs to

RandomAlphabetPseudonymizer

public RandomAlphabetPseudonymizer(boolean paddingWanted,
 int pseudonymValueLength,
 char paddingChar,
 String domainName,
 String alphabet)

A constructor that allows to set whether or not the created pseudonyms should be padded as well as the desired pseudonym value length and the character used for padding.

Parameters:

paddingWanted - whether or not the pseudonyms should be padded to a certain length

pseudonymValueLength - the desired length of the pseudonym value

paddingChar - the character that should be used

domainName - the name of the domain to which the record belongs to

RandomAlphabetPseudonymizer

public RandomAlphabetPseudonymizer(boolean paddingWanted,
 int pseudonymValueLength,
 char paddingChar,
 String domainName,
 int numberOfRetries,
 String alphabet)

A constructor that allows to set whether or not the created pseudonyms should be padded as well as the desired pseudonym value length and the character used for padding.

Parameters:

paddingWanted - whether or not the pseudonyms should be padded to a certain length

pseudonymValueLength - the desired length of the pseudonym value

paddingChar - the character that should be used

domainName - the name of the domain to which the record belongs to

numberOfRetries - the number of times the method retries finding a random number that is not already in use

RandomAlphabetPseudonymizer

public RandomAlphabetPseudonymizer(boolean paddingWanted,
 Domain domain)

Basic constructor. Number of retries is set to default, all other variables are directly retrieved from the domain object.

Parameters:

paddingWanted - whether or not the pseudonyms should be padded to a certain length

domain - the domain object

RandomAlphabetPseudonymizer

public RandomAlphabetPseudonymizer(boolean paddingWanted,
 Algorithm algorithm)

Basic constructor. Number of retries is set to default, all other variables are directly retrieved from the algorithm object.

Parameters:

paddingWanted - whether or not the pseudonyms should be padded to a certain length

algorithm - the algorithm object

Method Details

pseudonymize

public String pseudonymize(String identifier,
 String domainPrefix)

Creates a random character pseudonym for the given identifier. The identifier is not actively used in this method.

Specified by:

pseudonymize in class Pseudonymizer

Parameters:

identifier - the value to be pseudonymized

domainPrefix - the prefix for the domain

Returns:

a pseudonym in the form of domainPrefix-pseudonymValue (e.g. TST-a1cd75fe29c449248cabfae)