Mercurial > dropbear
view libtomcrypt/src/misc/burn_stack.c @ 1928:333688ec53d0
Handle ecdsa-sk flags, reject no-touch
For the time being Dropbear will only allow SK auth with default
parameters, user-presence needs to be set.
In future handling of authorized_keys option "no-touch-required" can be
added.
This code would also be refactored to share between ecdsa and ed25519
once I get hardware/emulation to test ed25519.
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Wed, 30 Mar 2022 21:06:15 +0800 |
parents | 6dba84798cd5 |
children |
line wrap: on
line source
/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. */ #include "tomcrypt.h" /** @file burn_stack.c Burn stack, Tom St Denis */ /** Burn some stack memory @param len amount of stack to burn in bytes */ void burn_stack(unsigned long len) { unsigned char buf[32]; zeromem(buf, sizeof(buf)); if (len > (unsigned long)sizeof(buf)) burn_stack(len - sizeof(buf)); } /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */