this post was submitted on 29 Jun 2025
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Create a string that contains random characters (programming.dev)
submitted 4 days ago by xolatgames@programming.dev to c/cpp@programming.dev
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Hi! โœŒ๏ธ 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++? ๐Ÿค”

Thanks in advance!

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[โ€“] pelya@lemmy.world 3 points 4 days ago (2 children) 
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;
[โ€“] bunitor@lemmy.eco.br 2 points 4 days ago (1 children)

that's cheating

(also, it won't work on systems without curl installed)

[โ€“] lambalicious@lemmy.sdf.org 1 points 4 days ago

(or without internet access)