Add signature

Adds signature to the existing MCUboot format image.

Command name

add-signature

Inputs

This command requires two input files, where one is the

MCUboot formatted image

and the second is the signature.

Name	Type	Optional/Required	Description
file	string	required	Path to the image with MCUboot metadata
description	string	optional	Description for this field.

Name	Type	Optional/Required	Description
file	string	required	Binary file containing signature.
algorithm	string	required	Signature algorithm. Available values: ECDSA-P256, RSA2048, RSA4096.
description	string	optional	Description for this field.

Outputs

Name	Type	Optional/Required	Description
file	string	required	Path to the output file.
format	string	required	Format of the output file. Available values: ihex, bin.
description	string	optional	Description for this field.

Example

{    
    "schema-version": 1.0,
    "content": [
        {
            "name": "Add-signature command example",
            "description": "Adds a signature to the MCUboot formatted image",
            "enabled": true,
            "commands": [
                {
                    "command": "add-signature",
                    "inputs": [
                        {
                            "description": "Unsigned bootloader in MCUboot format",
                            "file": "./hexs/bootloader_meta.hex"
                        },
                        {
                            "description": "Signature returned by HSM",
                            "file": "./hexs/signature.bin",
                            "algorithm": "ECDSA-P256"
                        }
                    ],
                    "outputs": [
                        {
                            "description": "Final image signed with HSM",
                            "format": "ihex",
                            "file": "./hexs/bootloader_signed.hex"
                        }
                    ]
                }
            ]
        }
    ]
}