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I've recently needed to generate an AES encryption key for a new project I've been working on.
I needed to generate a specific number of bytes, and fortunately the OpenSSL CLI came to the rescue with openssl rand:
# raw bytes
openssl rand 32
# as base64
openssl rand -base64 32
# as a hex representation
openssl rand -hex 32
This post's permalink is https://www.jvt.me/posts/2020/06/27/generating-random-bytes-openssl-cli/ and has the following summary:
.How to generate random bytes as binary, base64 or hex, using `openssl` on the command-line.
The canonical URL for this post is https://www.jvt.me/posts/2020/06/27/generating-random-bytes-openssl-cli/ .
Written by 
Jamie Tanna
on , and last updated on .
Content for this article is shared under the terms of the Creative Commons Attribution Non Commercial Share Alike 4.0 International, and code is shared under the Apache License 2.0.
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