Not really for web services. Basic Authentication isn't any more secure.
Base64 is easily decrypted.

Tokens are what I'm seeing used most often now (using OAuth).

Why reinvent the wheel? I bet there are services and/or tutorials out
there that would be able to set up APIs for your application to use OAuth
2.0 tokens. It's a little overhead and a slight learning curve, but worth
it.

You may be able to implement Google ID OAuth2.0 pretty easily (but this
would require a Google account for the user). This means no more user ids
and passwords for your applications. All they need is a Google Account
(this could be done with Facebook, Twitter, etc accounts as well).

I wrote an article on it here on how I implemented it into our
FieldExit.com site:
http://www.fieldexit.com/forum/display?threadid=177

It may lead you down a path. It's not meant as a "just copy this and it
will work" example. More of an exercise to see what standards are in use
out there today.

Also, i assume you're services are using SSL as well.

Without a full view of your applications and the servers and languages in
use, both client and server, it's hard to suggest things as well.

Brad
www.bvstools.com



On Tue, Aug 18, 2015 at 4:03 PM, Kevin Turner <
kevin.turner@xxxxxxxxxxxxxxxxxxxx> wrote:

If you are going to the bother of insisting on a user id and password
bring passed then wouldn't it be normal to have those credentials (encoded)
in the HTTP header (not in a query string or post data)?

Sent from my iPad

On 18 Aug 2015, at 21:41, Pete Helgren <pete@xxxxxxxxxx> wrote:

Henrik,

This is where I plan to go and don't know if this is what the OP was
concerned about. What I don't want to have happen is that the
http://serverip/getinfo.pgm?userid=aaaaa&password=bbbbb&account=123456 is
changed to
http://serverip/getinfo.pgm?userid=aaaaa&password=bbbbb&account=654321
and they are given account access to that account. Yeah, I could check to
make sure that the account is valid for that user, plus a few other steps,
but hashing and salting are a bit more straightforward and require fewer
steps (IMHO)...

Pete Helgren
www.petesworkshop.com
GIAC Secure Software Programmer-Java

On 8/18/2015 1:29 PM, Henrik Rützou wrote:
Richard

if you control both the client and the server it is quite simple.

Lets say you have a URL like


http://
serverip/getinfo.pgm?userid=aaaaa&password=bbbbb&account=123456


you change the url to


http:// serverip/getinfo.pgm?userid=aaaaa&hash=

4625fd63b0e96fc0d656ae7381605e48d4a0f63a319fc743adf22688613883c7&account=123456

Everybody can do a HASH - but the HASH is 'salted'

The user id aaaaa has a 'salt'-value only the client and the server
knows
so the input
to the HASH algoritm is

aaaaa123456salt

There is no way you can break this security other than 'trail and error'
since you cant
deciber HASH values and the 'salt' is only known by the client and the
server.

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