[Bug 2078395] Re: [SRU] Add RSA3072 support to jammy

[Ubuntu Foundations Team Bug Bot]

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** Tags added: patch

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Title:
  [SRU] Add RSA3072 support to jammy

Status in u-boot package in Ubuntu:
  New

Bug description:
  [Impact]

  The mkimage command is used to create images for use with the U-Boot boot loader.
  mkimage on jammy doesn't support RSA3072.

  The patch for adding RSA3072 support
  https://github.com/u-boot/u-boot/commit/2a4b0d5890deb0c973f8db7bb03adad96aff1050

  [Test case]

  Test Case 1:
  1. Install packages required for the sandbox test
  $ sudo apt install efitools libguestfs-tools libsdl2-dev python3-pycryptodome
  2. Run sandbox test to check if two new test cases for sha384 pass.
  $ ./test/py/test.py --bd sandbox --build
  test/py/tests/test_vboot.py
  @@ -45,6 +45,8 @@ TESTDATA = [
       ['sha256-pss-pad', 'sha256', '-pss', '-E -p 0x10000', False, False],
       ['sha256-pss-required', 'sha256', '-pss', None, True, False],
       ['sha256-pss-pad-required', 'sha256', '-pss', '-E -p 0x10000', True, True],
  +    ['sha384-basic', 'sha384', '', None, False, False],
  +    ['sha384-pad', 'sha384', '', '-E -p 0x10000', False, False],
   ]

  https://u-boot.readthedocs.io/en/latest/develop/testing.html#pytest-
  suite

  Test Case 2:
  Create a test fitimage and sign with rsa3072 algorithm.
  $ sudo mkimage -F -k keydir -f fdt.its test.dtb

  [Where problems could occur]

  The regression risk should be low because this patch just adds RSA3072
  support.

  [Other Info]

  The patch is already in Noble, so we only need to backport to Jammy

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