Package fr.becpg.repo.authentication

Class SecurePasswordGenerator

java.lang.Object

fr.becpg.repo.authentication.SecurePasswordGenerator

public class SecurePasswordGenerator
extends Object

Utility class that generates a random password using a cryptographically strong random source (SecureRandom).

The generated password has the following characteristics:

• Length: 14 characters.
• Contains at least one uppercase letter (A-Z).
• Contains at least one lowercase letter (a-z).
• Contains at least one digit (0-9).
• Contains at least one special character from: !@#$%^&*()-_=+[]{} .

Author:

matthieu

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	ALL	Constant ALL="UPPER + LOWER + DIGIT + SPECIAL"
private static final String	DIGIT	Constant DIGIT="0123456789"
private static final String	LOWER	Constant LOWER="abcdefghijklmnopqrstuvwxyz"
private static final SecureRandom	RANDOM	Constant RANDOM
private static final String	SPECIAL	Constant SPECIAL="!
private static final String	UPPER	Constant UPPER="ABCDEFGHIJKLMNOPQRSTUVWXYZ"

Constructor Summary

Constructors

Modifier	Constructor	Description
private	SecurePasswordGenerator()	Constructor for SecurePasswordGenerator.

Method Summary

Modifier and Type	Method	Description
static String	generatePassword()	generatePassword.
private static char	randomChar(String chars)	randomChar.
private static String	shuffleString(String input)	shuffleString.

Methods inherited from class java.lang.Object

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

Field Details

RANDOM

private static final SecureRandom RANDOM

Constant RANDOM

UPPER

private static final String UPPER

Constant UPPER="ABCDEFGHIJKLMNOPQRSTUVWXYZ"

See Also:

• Constant Field Values

LOWER

private static final String LOWER

Constant LOWER="abcdefghijklmnopqrstuvwxyz"

See Also:

• Constant Field Values

DIGIT

private static final String DIGIT

Constant DIGIT="0123456789"

See Also:

• Constant Field Values

SPECIAL

private static final String SPECIAL

Constant SPECIAL="!@#$%^&*()-_=+[]{}"

See Also:

• Constant Field Values

ALL

private static final String ALL

Constant ALL="UPPER + LOWER + DIGIT + SPECIAL"

See Also:

• Constant Field Values

Constructor Details

SecurePasswordGenerator

private SecurePasswordGenerator()

Constructor for SecurePasswordGenerator.

Method Details

generatePassword

public static String generatePassword()

generatePassword.

Returns:

a String object

randomChar

private static char randomChar(String chars)

randomChar.

Parameters:

chars - a String object

Returns:

a char

shuffleString

private static String shuffleString(String input)

shuffleString.

Parameters:

input - a String object

Returns:

a String object