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We can easily overwrite the corresponding functions
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* removed Django code - we're keeping the tests - so I hope the two can still be used together
* removed js packer - everyone has their own packaging strategy these days
* cleaned up the repository - we only have js so javascript directory does not make much sense
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* added a small hook in srp to set a, A and Astr for testing
* moved generic functions for tests to SpecHelper
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Not sure if this was needed. Tests will throw exceptions when it's in but maybe some legacy browsers require it.
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Functions exist to create headers that include javascript files, and create javascript functions for login and registration. There are also
functions that create login and registration forms.
These functions don't necessarily account for everything a web developer might want to do, but it should simplify things for most developers and
provide guidelines for developers who want to build on top of this functionality.
Views.py now builds the login and register pages based on these functions. The register page now uses the login.html template, and the
register.html template should be deleted in the next release.
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includes AES.
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site-by-site basis.
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made them hidden fields in the form. This way a bookmarklet will be
able to read the fields, and authentication can be done without trusting the javascript sent by the server.
I also organized urls.py
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must send the server the password. I wasn't happy about doing this
in plaintext, so I've incorporated slowAES on both the client and the server to encrypt the password before it is sent, using the key generated
in the first SRP transaction.
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If a user exists in the auth table but not the srp table, the server sends back the algorithm and salt needed to hash the password. The hashed
password is used to authenticate the user.
After the server authenticates the user and the user verifies the identity of the server, the user sends the password in plaintext. The server
uses the plaintext password to calculate the verifier and stores. Finally, the client reinitiates the login process.
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login script is now .3 kb smaller, but there is a new 1.1 kb
register file. I think that registrations are rare enough relative to logins that this should be a worthwhile tradeoff. This also prepares a
framework for importing an update file, which will allow existing installations to upgrade from less secure authentication protocols, so some of
the overhead in srp.js that was added here will help reduce the size as we add the update functionality.
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authentication backend framework.
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Made srpPath a part of the SRP object to reduce namespace clutter.
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or not, and loads the packed or unpacked hash files accordingly.
It occurs to me that perhaps all of the hash functions should be put into a single object to reduce namespace pollution.
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to the srp script can be found in the global variable srpPath. If
the server is using raw javascript files, this should be set to "srp.js". If the server is using packed files, this should be set to
"srp.min.js".
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upgrade to SRP.
Currently, I've added functionality that will allow the importation of hash.min.js. This is made possible by some code that executes when the
script is loaded. This particular code doesn't pack properly, so currently I'm having the pack script append it to the end (unpacked).
This requires that clients use the packed version for two reasons. First, the unpacked code lacks the function that gets the source path. Second,
it loads hash.min.js. The first problem can be fixed if I can figure out how to get the code to pack properly. The second problem can be solved
by checking whether the current script is "srp.js" or "srp.min.js", and loading either (MD5.js & SHA1.js) or hash.min.js respectively.
Next we will need to write code where the server detects users who exist in the auth.models.User table, but not the srp.models.User table.
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files. Instead of sending 6 javascript files totaling about 50KB, we
now send 1 file totaling 21.1KB.
After modifying any javascript files, run build-pack.sh to update
srp.min.js.
The login.html and register.html templates have been changed to send
the one packed file. The file srp.js was modified so that it would pack
properly.
Necessary files from the perl version of packer are included, but they
shouldn't be included on production web servers. The packer files are
released under the LGPL.
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Also added a 'key' function to the SRP javascript library, in case anyone wants to use K for encrypting communications.
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minor errors in the library, which have also been addressed.
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as a class. It is instantiated by:
var srp = new SRP(username, password, server_type, base_url);
Then it is run by calling:
srp.register()
to register a new user, and
srp.identify()
to authenticate an existing user. By default, a successful
identification pops up an alert reading "Authentication Successful."
To change this, set srp.success to a function. For example,
srp.success = function()
{
alert("We win!");
}
The same is true for error messages. By default, the SRP library sends
the message to the user as an alert box, but web designers can replace
the srp.error_message function to handle the error messages differently.
The most significant part of making the SRP library into a class is that
it cleans up the namespace. Instead of having tons of srp_Variables, we
only add the SRP() function to the namespace, and all other variables
are either private, public, or protected members of that class.
A few minor edits were made to views.py to support logging in with the
modified library. I haven't made the modifications to register yet, so
it won't work for this revision. Oops.
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