Hi! ✌️ I need to generate some string in C++ with random characters that can use all letters from “a” to “z” (include capital letters), and all numbers from 0 to 9 there.
And for examples this should looks somehow like this:
SnHXAsOC5XDYLgiKM5ly
Also I want to encrypt that string then by itself:
SnHXAsOC5XDYLgiKM5ly encrypt with SnHXAsOC5XDYLgiKM5ly key.
So, how can I do this in C++? 🤔
Thanks in advance!
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you can do this in pretty much any language. have you tried anything and need help or you’re just asking us to do your homework for you?
Asking to do a homework.
honest advice: it’s fine to ask for help online, but not putting any effort into solving your own problems before you do is disrespectful
FILE *f = popen("curl 'https://www.random.org/passwords/?num=1&len=12&format=plain&rnd=new'", "r"); char s[14]; fread(s, 1, sizeof(s), f); s[13] = 0;🤭
that’s cheating
(also, it won’t work on systems without curl installed)
(or without internet access)
There are various ways to solve the first part and they’re pretty generic, the only “
C++-specific” part is whether you’ll want to build the string step by step (adding characters) or build in one go then modify (build a prearranged string, for example of a specific size, then modify as needed).To solve the second part we (you) also need to know the encryption algorithm. “Encrypt” is quite a generic word.
What’s the best encryption algorithm in your opinion?
Let’s solve the first part then.
But I guess that @herzenschein already suggested me a solution…
You could take inspiration from Theodore Tso’s pwgen: https://github.com/tytso/pwgen
You could take inspiration from Theodore Tso’s pwgen: https://github.com/tytso/pwgen
It’s a Unix utility in C commonly used on Linux and FreeBSD to make truly random passwords. It’s the first thing I thought of when reading this.
Thanks so much! 👍🏼
But thanks to you! 😄
It will be a really hard work https://github.com/tytso/pwgen/blob/master/pw_rand.c 🤔
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This is not doable in c++ unfortunately. Its an old case that’s only doable in f# or turbo pascal because of string handling and cryptography export rules (and possibly copy right)
