LAE

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Originally posted by: xathras

Hi,

Is it ok to install additional python modules to your code base? or is there licensing impacts?

For example, I'm looking at secure password generation, and rather than re-inventing the wheel, it would be good to use the passlib python modules specifically passlib.hash.pbkdf2 which would give me an excellent crypto to work with.

http://packages.python.org/passlib/l...f2_digest.html

If so, is it as simple as finding the python executable and running pip / easy_install?

Regards
Wayne

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Originally posted by: rboccuzzi

It is fine in terms of licensing. You would need to set up your environment and then you can use python to install. To do the setup, you would either need to source the lavastorm.csh or setBrainEnv.bat files appropraitely, depending on environment. Please remember, this is something you would need to "support" yourself, as you are installing external libraries, and you would have to configure/install again upon upgrades (probably, but not definitely).

Cheers
Rich

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Originally posted by: rboccuzzi

Hey Wayne, I just wanted to drop a not here, in case this wasn't clear. I thought I would just give you some step by step instructions, at least for Windows.

You need to be running in cmd as Administrator. Below is what I typed is in italics and underlined:


C:\Users>cd C:\Program Files (x86)\Lavastorm\LAE 4.5
C:\Program Files (x86)\Lavastorm\LAE 4.5>setBrainEnv.bat
BRAIN Environment configured:


Install : C:\Program Files (x86)\Lavastorm\LAE 4.5
BRAIN : C:\Program Files (x86)\Lavastorm\LAE 4.5
Java : C:\Program Files (x86)\Lavastorm\LAE 4.5\platform\windows-x86-32\java
Python : C:\Program Files (x86)\Lavastorm\LAE 4.5\platform\windows-x86-32\python
Scratch : C:/BRAINscratch
Temp : "C:/BRAINscratch/tmp"


Temporary files, logs, deployed graphs, and
backup files will be in the Scratch Directory


C:\Program Files (x86)\Lavastorm\LAE 4.5>which python
/cygdrive/c/Program Files (x86)/Lavastorm/LAE 4.5/platform/windows-x86-32/python/python


C:\Program Files (x86)\Lavastorm\LAE 4.5>cd \tmp


C:\tmp>ls
passlib-1.6.1.tar.gz


C:\tmp>tar -zxf passlib-1.6.1.tar.gz


C:\tmp>cd passlib-1.6.1


C:\tmp\passlib-1.6.1>python setup.py install
running install
running bdist_egg
running egg_info
[stuff deleted]
Processing dependencies for passlib==1.6.1
Finished processing dependencies for passlib==1.6.1
C:\tmp\passlib-1.6.1>

That should be it, ideally. I didn't test anything, but I believe it installed fine. And this same thing should be essentially what you do under Linux, only you would source the lavastorm.csh file in the installation directory, under etc...unless your distribution has been modified, then you would need to set up your environment exactly as you do before running the server; let me know if you need more help on that.

Cheers
Rich

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Originally posted by: xathras

Hi Rich,

Your example on windows helped me progress this for linux, here is what i did:

Navigate to: /opt/software/lae/4.5.4/platform/linux-x86-64/python/bin
Copy over my passlib install folders.
Ran the following command: [lae454@til-bl-lap-02 bin]$ python ./passlib-1.6.1/passlib-1.6.1/setup.py install

I have attached a dummy example for others.

For those that don't know, for people whom need to have secure data, you may want to encrypt, standard hashing algorithms are a good way, but using passlib extends that security.
As an example.

The word: securekey in SHA1 is always: b6240b1a3f78a9fd4280fbd31b022573a0af7c4d, not matter how many times I refresh.
Whereas, if i use passlib with SHA1, salt and itterations, there is never a collission:

e.g. from Attempt 1 to 3 below, see how they're different:
Pass 1: $sha1$40000$2L3sVEZE$EdEfD9yVzaHVQh4WhmqncCIfhu0l
Pass 2: $sha1$40000$1PICtgMd$spPMnQtY7jVPcdIP/PGz5f6KVZuj
Pass 3: $sha1$40000$4h8qZlRq$n2jnEH1dpZfNRgPTB0APFpB.Cb32

This maybe over kill for some, but for those whom have very sensitive data, I highly recommend.

Wayne
Attachments:
passlibPythonExample.brg
passlibPythonExample.brp