newt resign-image

Sign or re-sign an existing image file.

Usage:

newt resign-image <image-file> [signing-key [key-id]][flags]

Global Flags:

-h, --help              Help for newt commands
-j, --jobs int          Number of concurrent build jobs (default 8)
-l, --loglevel string   Log level (default "WARN")
-o, --outfile string    Filename to tee output to
-q, --quiet             Be quiet; only display error output
-s, --silent            Be silent; don't output anything
-v, --verbose           Enable verbose output when executing commands

Description

Changes the signature of an existing image file. To sign an image, specify a .pem file for the signing-key and an optional key-id. key-id must be a value between 0-255. If a signing key is not specified, the command strips the current signature from the image file.

A new image header is created. The rest of the image is byte-for-byte equivalent to the original image.

Warning: The image hash will change if you change the key-id or the type of key used for signing.

Examples

Usage	Explanation
newt resign-image bin/targets/myble/app/apps/btshell/btshell.img private.pem	Signs the bin/targets/myble/app/apps/btshell/btshell.img file with the private.pem key.
newt resign-image bin/targets/myble/app/apps/btshell/btshell.img	Strips the current signature from bin/targets/myble/app/apps/btshell/btshell.img file.