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which mechanism is build in HTTP?

Hari Peng

Joined: Jun 25, 2004
Posts: 7
Hi, every one,
When I do some exercise,I meet this question about HTTP:
5. Identify the authentication mechanisms that are built into the HTTP specification.
(Select two)
a Basic
b Client-Cert
d Digest
e Client-Digest
Answers: a and d
My doubt is the answer d & f, as we know, not all the browers support Digest,so if it is "build in" HTTP,how this happen?
I think the HTTPS should be right,since its similitude name.
Osama Hasan
Ranch Hand

Joined: Sep 30, 2002
Posts: 53
I think answers (a) and (c) should be correct as Form based authentication is built-in in Http.

SCJP 1.4<br />SCWCD 1.4
Leena Diwan
Ranch Hand

Joined: Jun 18, 2001
Posts: 351
Basic and digest are the correct answers.
These are built in HTTP1.1

Do not go on name similarity here.

Basic and Form seem to be the right options. But Digest is built into HTTP1.1. Not Form based authemtication. I do wonder it can be included in which category.

Anyone knows the answer?


Vijay Albuquerque
Ranch Hand

Joined: Feb 17, 2002
Posts: 42
According to what I understand, FORM based authentication is a convinience extension of BASIC that is provided by the Servlet Container. FORM internally uses BASIC authentication but provides you a wrapper to use a custom form.
Please correct me if I am wrong!

Vijay Albuquerque
SCJP 1.4, SCWCD 1.3
I agree. Here's the link:
subject: which mechanism is build in HTTP?
It's not a secret anymore!