So I wrote a method that makes the user enter a password and this password must pass the following specs: 1. This 8 character crack took approximately 1 hour and 20 minutes. I think they are asking for one upper case letter, one lower case letter, one number, an alpha character, and a minimum of I think eight total characters. Have an uppercase 3. Questions: I want a regular expression to check that a password must be eight characters including one uppercase letter, one special character and alphanumeric characters. This article is contributed by Rishabh Jain.If you like GeeksforGeeks and would like to contribute, you can also write an article using or mail your article to (a)No. _ - ~ $ % + =) If you are struggling to come up with a good password, here are some examples and information to think about. of alphabets that can be used to create the 8 cha view the full answer view the full answer Check a password between 8 to 15 characters which contain at least one lowercase letter, one uppercase letter, one numeric digit, and one special character. 0-9, adding numbers/digits) to the examples below to include numbers in them as well but I will leave that out as it would be a similar example. . Upper case letters: 5 Lower case letters : 8 Number : 4 Special characters : 2. I am trying to enter a password for dell financial services so I can sign on to pay my bill. of alphabets that can be used to create the 8 character password = 26.As, the alphabets can possibly be both upper and lower case,Total No. This 8 character brute force crack took approximately 2 days. When the same ~35k hashes were run against an 8 character mask that contained uppercase, lowercase, numbers, and special characters the password crack success rate nearly doubled to 28%. It means that the password should have minimum length 8 alphanumeric character and maximum length is 12 alphanumeric character. Have special Be at least 8 digits long 2. Have a lowercase 4. New Password Security Criteria: 8 characters with at least 1 Upper Case, 1 lower case, and 1 numeric character; Newly Entered Table Rows can be deleted; Table Rows can be set to be Printed (PDF), Duplicated, and newly entered Rows can be Deleted. 8 Character Password with lowercase, uppercase or special characters You can add the number range(ie. Following code blocks contain actual codes for the said validations. At least eight characters (a-z) At least three of the four: At least one lowercase character (a-z) At least one uppercase character (A-Z) At least one digit (0-9) At least one symbol (? Coaches: Access Account Data from the main application via the Profile Pages , ! And here is my validation expression which is for eight characters including one uppercase letter, one lowercase letter, and one number or special character. See your article appearing on the GeeksforGeeks main page and help other Geeks.