Add /usr/sbin and /sbin to default root PATH When dropbear is used in a very restricted environment (such as in a initrd), the default user shell is often also very restricted and doesn't take care of setting the PATH so the user ends up with the PATH set by dropbear. Unfortunately, dropbear always sets "/usr/bin:/bin" as default PATH even for the root user which should have /usr/sbin and /sbin too. For a concrete instance of this problem, see the "Remote Unlocking" section in this tutorial: https://paxswill.com/blog/2013/11/04/encrypted-raspberry-pi/ It speaks of a bug in the initramfs script because it's written "blkid" instead of "/sbin/blkid"... this is just because the scripts from the initramfs do not expect to have a PATH without the sbin directories and because dropbear is not setting the PATH appropriately for the root user. I'm thus suggesting to use the attached patch to fix this misbehaviour (I did not test it, but it's easy enough). It might seem anecdotic but multiple Kali users have been bitten by this. From https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=903403

====================
pkcs-1v2-1-vec.zip
====================

This directory contains test vectors for RSAES-OAEP and
RSASSA-PSS as defined in PKCS #1 v2.1.

The files:

readme.txt              This file.

oaep-vect.txt           Test vectors for RSAES-OAEP encryption.

oaep-int.txt            Intermediate values for RSAES-OAEP 
                        encryption and RSA decryption with CRT. 
                        Also, DER-encoded RSAPrivateKey and 
                        RSAPublicKey types.

pss-vect.txt            Test vectors for RSASSA-PSS signing.

pss-int.txt             Intermediate values for RSASSA-PSS
                        signing.