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

[ethan.hsieh]

Will upload debdiff for jammy later.

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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]

  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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