Generates a strong password of given password length.
Ensuring following for the generated password.

• Password contains

  -ABCDEFGHIJKLMNOPQRSTUVWXYZ 
  -abcdefghijklmnopqrstuvwxyz 
  -0123456789
  -{[(~!@#$%^&_+-/.,|>=<?:)]};
  

  • There is only one occurrence of the same character.

  • Upper case / lower case characters are followed by either a digit, other characters.

  • At most one occurrence of a character from the given set.

  • There are no consecutive occurrence of characters from the same set.

       allowDuplicate = false
      -Minimum input password length is 6
      -Maximum input password length is 45
    
       allowDuplicate = true 
      -Minimum input password length is 6
      -Maximum input password length is 100
    

Beyond 45 it is not possible ensure all the above password constraints are met for allowDuplicate=false, usually, the first constraint "occurrence of same character once" fails and take too long to complete the generation.

Usage

    //Generate password of length 6 and no duplicate tokens
     StrongPassword.generate(6, false);
    //Generate password of lenthg 12 and allow duplicate tokens                  
    StrongPassword.generate(6, true);