How many special characters are there for passwords?

Answered by Jarrod Smith

When it comes to passwords, special characters play a crucial role in enhancing the security of our accounts and personal information. These special characters, also known as ASCII Punctuation & Symbols or ASCII special characters, are a specific set of characters that are often required or recommended by password systems to be included in our passwords.

To answer the question of how many special characters there are for passwords, we need to explore the ASCII character set. ASCII (American Standard Code for Information Interchange) is a widely used character encoding system that assigns unique numeric codes to represent various characters, including letters, numbers, and special characters.

In the ASCII character set, there are a total of 128 characters. Out of these, 33 characters are classified as ASCII Punctuation & Symbols, which are commonly considered as special characters for password purposes.

The 33 ASCII Punctuation & Symbols characters include:

1. ! (Exclamation mark)
2. ” (Double quotation mark)
3. # (Number sign)
4. $ (Dollar sign)
5. % (Percent sign)
6. & (Ampersand)
7. ‘ (Single quotation mark)
8. ( (Left parenthesis)
9. ) (Right parenthesis)
10. * (Asterisk)
11. + (Plus sign)
12. , (Comma)
13. – (Hyphen)
14. . (Period)
15. / (Slash)
16. : (Colon)
17. ; (Semicolon)
18. < (Less than) 19. = (Equals sign) 20. > (Greater than)
21. ? (Question mark)
22. @ (At symbol)
23. [ (Left square bracket)
24. \ (Backslash)
25. ] (Right square bracket)
26. ^ (Caret)
27. _ (Underscore)
28. ` (Grave accent)
29. { (Left curly brace)
30. | (Vertical bar)
31. } (Right curly brace)
32. ~ (Tilde)

These special characters can be utilized in passwords to add complexity and make them harder to guess or crack. Including a mix of uppercase letters, lowercase letters, numbers, and special characters in a password is generally recommended for stronger security.

It’s important to note that while these special characters are commonly accepted, some password systems or websites may have specific requirements or restrictions on which special characters are allowed or recommended. Therefore, it’s always a good practice to check the specific password requirements of the system or website you are creating a password for.

In my personal experience, I have encountered various password systems and websites that enforce the use of special characters to enhance security. The inclusion of special characters in passwords adds an extra layer of complexity, making it more challenging for potential attackers to guess or crack the password. However, it is essential to strike a balance between complexity and memorability, as overly complex passwords can be difficult to remember and may lead to the use of insecure practices, such as writing down passwords.

To summarize, there are 33 ASCII Punctuation & Symbols characters classified as special characters for passwords. Including a mix of these special characters, along with letters and numbers, can significantly improve the strength and security of our passwords. However, it’s crucial to be aware of specific password requirements and find a balance between complexity and memorability.