Difference between revisions of "Password Security"
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=== The Password Quality === | === The Password Quality === | ||
'''Personal information''' is used to create passwords which is a polpular target for social engineering. Often '''standard passwords''' like "123456" or "passowrd" are used. Actually, "123456" is the most used password for the last years [2]. The re-use of passwords is one of the main topics: many users use the '''same password for various accounts'''. It is obvious that it is not a good idea to use the same password for online banking and for Adobe account. | '''Personal information''' is used to create passwords which is a polpular target for social engineering (names, dates, etc.). Often '''standard passwords''' like "123456" or "passowrd" are used. Actually, "123456" is the most used password for the last years [2]. The re-use of passwords is one of the main topics: many users use the '''same password for various accounts'''. It is obvious that it is not a good idea to use the same password for online banking and for Adobe account. | ||
== Good Passwords == | == Good Passwords == | ||
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Are you sorry we drifted apart? | Are you sorry we drifted apart? | ||
The resulting password might be: Ayl2n?Dymm2n?Ayswda? | |||
* Think about approx. 4 different words which make sense for you but in general, the combination does not make any sense at all. Meaningful sentences are no good passwords. | |||
Here's an example: | |||
Concrete | |||
Ocean | |||
Mouse | |||
Egg | |||
You'll have to add a special character and a digit. The resulting password might be: ConcreteOcean4MouseEgg! | |||
Revision as of 15:28, 2 March 2020
Summary
This documentation provides advice about secure passowrds. It covers known problems with passwords and elaborates various solutions for secure password creation and usage. The issue "bad passwords" is the number 1 vulnerability in the Internet-of-Things (IoT)[1].
Problems with Passwords
There are several more or less widely known bad habits regarding passwords.
The Password Quality
Personal information is used to create passwords which is a polpular target for social engineering (names, dates, etc.). Often standard passwords like "123456" or "passowrd" are used. Actually, "123456" is the most used password for the last years [2]. The re-use of passwords is one of the main topics: many users use the same password for various accounts. It is obvious that it is not a good idea to use the same password for online banking and for Adobe account.
Good Passwords
There are 3 general aspects for good passwords: the length plays a main role, the pwassword must not be trivial, and the password must be easily memorized. Leet speak is not a good idea because meanwhile all password crackers know leet speak.
Good Password Checklist
- Minimum length of 12 characters
- Contains lower & upper case letters, digits, and special characters
- As random as possible
- Easy to remember
How to Create a Good Password
- Think about your favorite lines of a song, poem, or movie, etc. Take the first letters and special characters to create your password.
Here's an example:
Are you lonesome tonight? Do you miss me tonight? Are you sorry we drifted apart?
The resulting password might be: Ayl2n?Dymm2n?Ayswda?
- Think about approx. 4 different words which make sense for you but in general, the combination does not make any sense at all. Meaningful sentences are no good passwords.
Here's an example:
Concrete Ocean Mouse Egg
You'll have to add a special character and a digit. The resulting password might be: ConcreteOcean4MouseEgg!
Requirements
none - so far...
In order to complete these steps, you must have followed Some Other Documentation before.
Description
Step 1
Enter these commands in the shell
echo foo echo bar
Step 2
Make sure to read
- War and Peace
- Lord of the Rings
- The Baroque Cycle
Used Hardware
Device to be used with this documentation Maybe another device to be used with this documentation
Courses
- A course where this documentation was used (2017, 2018)
- Another one (2018)