This still defaults to 128 for compatibility, but allows users to
specify less elements to save space, or more elements for devices that
have massive flash size and/or too small sectors.
Signed-off-by: Fabio Utzig <utzig@apache.org>
The boot loader app needs all the base dependencies, whether or not
`BOOT_SERIAL` is enabled. Therefore, it makes sense for the serial boot
loader to add to, rather than replace, the dependency list.
This bug in the pkg.yml file went unnoticed ealier because of an issue
in newt: it used to effectively ignore the `.OVERWRITE` suffix when it
was applied to `pkg.deps`.
Signed-off-by: Christopher Collins <ccollins@apache.org>
This commit removes the pseudo tinycrypt package based on symlinks
by adding a new pkg.yml to ext/tinycrypt and using it directly. It
also uses the new mbed-tls bundled ASN1 parser when EC256 is selected.
Signed-off-by: Fabio Utzig <utzig@apache.org>
This add a new option to overwrite-only mode that enables copy/erase of
only the amount of sectors that are required to store the source image.
This is enabled by default when overwrite-only mode is used.
MCUB-70
Signed-off-by: Fabio Utzig <utzig@apache.org>
This removes the dependency on tinycrypt lib provided by mynewt and
switches to the one bundled in mcuboot. Also fixes a bug where tc
was only being used when eliptic curve 256 was selected as sign
algorithm.
Signed-off-by: Fabio Utzig <utzig@apache.org>
Since we are changing the image header format, there is no reason to
continue to support the old PKCS#1 v1.5 signatures. Remove the
definitions, and conditional complication related to this, and only
support the newer PSS signatures.
Signed-off-by: Marko Kiiskila <marko@runtime.io>
Signed-off-by: David Brown <david.brown@linaro.org>
This enables mynewt to use mcuboot as a remote repository, which is only
required when using newtmgr to manage images. Since mcuboot has slightly
changed the trailer format, newtmgr built against the bundled mynewt
bootloader writes the magic and flags to the wrong location.
To build a mynewt app the wants to run with mcuboot as the bootloader
and requires newtmgr one needs to change the app's pkg.yml dependencies
as follows:
- - boot/bootutil
+ - "@mcuboot/boot/bootutil"
Signed-off-by: Fabio Utzig <utzig@apache.org>
Use flash_device_base() in the boot code to compute a real address,
given the offset returned by boot_go().
Provide an implementation on mynewt that preserves existing
behavior. If mynewt needs to support devices with nonzero flash base
addresses, this can be migrated to the core OS.
Signed-off-by: Marti Bolivar <marti.bolivar@linaro.org>
The boot response returns a flash offset, not a flash address. This is
causing confusion and leading to crashes on some platforms which don't
have flash at address 0.
Rename the field to make it more clear what its purpose is; future
patches can start fixing up usages.
Signed-off-by: Marti Bolivar <marti.bolivar@linaro.org>
The PKCS#1 standards, which define RSA signatures, are currently at
version 2.2. Starting in v2.1, the standard defines a new signature
method RSA-PSS, which has a stronger security proof than the signature
method used in earlier versions. The standard recommends that RSA-PSS
be used in new designs, instead of the older algorithm.
This patch implements RSA-PSS verification for a specific set of
parameters:
- RSA-2048
- SHA256 for both the message digest and the internal hash
- 32-byte salt
- 2047 bit message
Although RSA-PSS supports other parameters, due to size constraints,
this verificatino code only supports these specific parameters, and
signatures with other parameters will be considered invalid.
To encourage the use of the more secure algorithm, the default build
configuration is RSA-PSS. BOOTUTIL_RSA_PKCS1_15 needs to be defined in
order to support the older signature algorithm.
Remove most of mynewt specific stuff to a separate port package. This
should make mcuboot less "mynewt'y" and slightly easier to port to.
- Mynewt specific stuff moved to boot/mynewt.
- Sample app moved from apps/boot to boot/mynewt.
- Use MYNEWT_VAL macro only on mynewt port.
- BOOTUTIL_* and MYNEWT_VAL() usage moved to MCUBOOT_ defines.
Fabio Utzig