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.

Tech Note #7
Quick building for testing with LTM

EXTRALIBS=-ltommath CFLAGS="-g3 -DLTC_NO_ASM -DUSE_LTM -DLTM_DESC" make -j3 IGNORE_SPEED=1 test