<div>
This command works well with me. &nbsp;What is your openssl version?<br />
Issue command<br />
openssl version<br />
<br />
Also try command<br />
openssl rand -base64 128
</div>


This command works well with me.  What is your openssl version?
Issue command
openssl version

Also try command
openssl rand -base64 128

<div>
$ openssl rand -hex 4<br />
fd537c0d<br />
$ openssl rand -hex 4<br />
5ff23802<br />
$ openssl rand -hex 4<br />
f0440308<br />
$ openssl rand -hex 4<br />
caa280de<br />
$ openssl rand -hex 8<br />
a516e2b31f32cf0f
</div>


$ openssl rand -hex 4
fd537c0d
$ openssl rand -hex 4
5ff23802
$ openssl rand -hex 4
f0440308
$ openssl rand -hex 4
caa280de
$ openssl rand -hex 8
a516e2b31f32cf0f

<div>
It worked on my friend's newer computer.
</div>


<div>
<div class="content wysiwyg-content">
Hello All,<br />
<br />
I'm trying to learn about encryption with the use of openssl on a laptop with Ubuntu.<br />
I'm trying to use the random number generator in openssl.<br />
When I enter openssl rand in the terminal I don't receive any numbers. &nbsp;It takes my<br />
command but does not output anything. &nbsp; I also have tried &nbsp; openssl rand -hex 4<br />
and nothing happens either. &nbsp; <br />
<br />
Could some one tell me what I'm not doing or doing wrong. &nbsp;I had no problem using<br />
openssl for encrypting but the random generator is causing me grief.<br />
<br />
Thank you for your help in advance.
</div>
</div>


Hello All,

I'm trying to learn about encryption with the use of openssl on a laptop with Ubuntu.
I'm trying to use the random number generator in openssl.
When I enter openssl rand in the terminal I don't receive any numbers.  It takes my
command but does not output anything.   I also have tried   openssl rand -hex 4
and nothing happens either.   

Could some one tell me what I'm not doing or doing wrong.  I had no problem using
openssl for encrypting but the random generator is causing me grief.

Thank you for your help in advance.

openssl and random number generator

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.

Linux

Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. In an encryption scheme, the intended communication information or message, referred to as plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients, but not to unauthorized interceptors.