What is HTTP basic authentication and how it works?

Related questions

1. What is fix version in Jira?
2. Can you assign an issue to yourself Jira?
3. Does confluence have an API?
4. Why is OAuth more secure than basic auth?
5. How secure is basic auth?
6. What is authentication in Web API?
7. What is JQL in Jira?
8. How do I enable basic authentication in Web API?
9. What is MVC authentication?
10. Is Basic Auth secure over https?

Tags

1. #authentication
2. #request
3. #password
4. #header
5. #which
6. #browser
7. #given
8. #username
9. #stating
10. #base64
11. #using
12. #requires
13. #encodes
14. #string
15. #concatenates
16. #provides
17. #answers
18. #encoded
19. #realm
20. #server
21. #sends
22. #authorization