andrewcarteruk/cryptokey

A command line tool for generating keys using a CSPRNG.

CryptoKey

, _(*1)

A tool for generating keys using a CSPRNG., _(*2)

If you have OpenSSL installed read below, as you probably do not need to install this tool., _(*3)

By AndrewCarterUK , _(*4)

How To Install

composer global require andrewcarteruk/cryptokey

Make sure you have added your global composer binary directory to the PATH in your ~/.bash_profile (or ~/.bashrc) file:, _(*5)

export PATH=~/.composer/vendor/bin:$PATH

This blog explains the process of global composer installs in more detail., _(*6)

Usage

$ cryptokey generate
bGS6lzFqvvSQ8ALbOxatm7/Vk7mLQyzqaS34Q4oR1ew=

$ cryptokey generate --format=hex
531a5187f08846a40ab6a9f9c651831bdd188e84b026804039773ef0aa51e500

$ cryptokey generate --entropy=64
ladkecOLF7RvMl/J5EGr/SMz5InfSyX+DA9CvecE/OiVFndnMqgvfLofNGO6/Gc5P1Io+eHYhcJphIRHCB9Kpg==

You can use the --format option to switch between base64 (default) and hex output., _(*7)

You can use the --entropy option to select the number of bytes of entropy. The default is 32 bytes (256 bits)., _(*8)

An Alternative: OpenSSL

If you have OpenSSL installed, you may find that the command(s) below are sufficient for your needs:, _(*9)

$ openssl rand -base64 32
3cDyOf7I6P4sU+ImVmIJW8k/IzGyoCACaJi+PbVY+I8=

$ openssl rand -hex 32
78a59462d4264e29be184226e7a46de0df96f97682963977fe61970b632d9faa

The OpenSSL command has -base64 and -hex options for switching between base64 and hex output., _(*10)

The final argument is the number of bytes of entropy to draw. The number of bits of entropy is this number multiplied by 8., _(*11)