C vs Elm

Python has become the most popular language for machine learning right now since almost all machine learning tools provide service for this language, and it is really to use since it has many build-in objects like Hashtable. In C, you need to implement everything by yourself.

C++ is one of the most popular programming languages in graphics. It has many fancy libraries like eigen to help us process matrix. I have many previous projects about graphics based on C++ and this time, we also need to deal with graphics since we need to analyze movements of the human body. C++ has much more advantages than Java. C++ uses only compiler, whereas Java uses compiler and interpreter in both. C++ supports both operator overloading and method overloading whereas Java only supports method overloading. C++ supports manual object management with the help of new and delete keywords whereas Java has built-in automatic garbage collection.

Hi! I'm working on some components in PHP for system administration to be released as reusable packages, to build some kind of server control panel with some time and patience.

I'm working on a credentials component to check things like the current user running the PHP process, the ability to change the password (which I would do through a shell command), and a very important feature: the ability to login with OS credentials.

For that purpose I'm already considering LDAP, but I want to support first an easy setup, like I would do for a small VPS. I want to login to my future panel with my Linux root credentials. This is very easy by parsing the /etc/passwd and /etc/shadow files, but I want to be multiplatform from the beginning.

How could I check a username/password in a similar way to login on Windows without having to configure Active Directory and similar things? I allow myself to use FFI to make external calls to native DLLs, so if the answer is on a Windows internal API it will not be a problem.

So, here is the question: is there any shell/C lang /C++ way to check if a given username and password matches a real Windows credential? Is there any way to check if that account is a root user? Thank you so much!

EDIT: If there's not any API to check a login, could it be done through reading the hashed password of a user, and hashing the provided one to check if they match? If so, how can you get the hashed password of a user, and how can you encode a password to compare both hashes?

As a personal research project I wanted to add post-quantum crypto KEM (key encapsulation) algorithms and new symmetric crypto session algorithms to openssh. I found the openssh code and its channel/context management extremely complex.

Concurrently, I was learning Go. It occurred to me that Go's excellent standard library, including crypto libraries, plus its much safer memory model and string/buffer handling would be better suited to a secure remote shell solution. So I started from scratch, writing a clean-room Go-based solution, without regard for ssh compatibility. Interactive and token-based login, secure copy and tunnels.

Of course, it needs a proper security audit for side channel attacks, protocol vulnerabilities and so on -- but I was impressed by how much simpler a client-server application with crypto and complex terminal handling was in Go.

<pre> $ sloc openssh-portable Languages Files Code Comment Blank Total CodeLns Total 502 112982 14327 15705 143014 100.0% C 389 105938 13349 14416 133703 93.5% Shell 92 6118 937 1129 8184 5.7% Make 16 468 37 131 636 0.4% AWK 1 363 0 7 370 0.3% C++ 3 79 4 18 101 0.1% Conf 1 16 0 4 20 0.0% $ sloc xs Languages Files Code Comment Blank Total CodeLns Total 34 3658 1231 655 5544 100.0% Go 19 3230 1199 507 4936 89.0% Markdown 2 181 0 76 257 4.6% Make 7 148 4 50 202 3.6% YAML 1 39 0 5 44 0.8% Text 1 30 0 7 37 0.7% Modula 1 16 0 2 18 0.3% Shell 3 14 28 8 50 0.9% </pre>

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