Messages in this thread | | | Date | Fri, 20 Oct 2023 13:54:39 +0800 | From | Herbert Xu <> | Subject | Re: [PATCH] crypto: mscode_parser: remove sha224 authenticode support |
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On Tue, Oct 10, 2023 at 10:25:29PM +0100, Dimitri John Ledkov wrote: > It is possible to stand up own certificates and sign PE-COFF binaries > using SHA-224. However it never became popular or needed since it has > similar costs as SHA-256. Windows Authenticode infrastructure never > had support for SHA-224, and all secureboot keys used fro linux > vmlinuz have always been using at least SHA-256. > > Given the point of mscode_parser is to support interoperatiblity with > typical de-facto hashes, remove support for SHA-224 to avoid > posibility of creating interoperatibility issues with rhboot/shim, > grub, and non-linux systems trying to sign or verify vmlinux. > > SHA-224 itself is not removed from the kernel, as it is truncated > SHA-256. If requested I can write patches to remove SHA-224 support > across all of the drivers. > > Signed-off-by: Dimitri John Ledkov <dimitri.ledkov@canonical.com> > --- > crypto/asymmetric_keys/mscode_parser.c | 3 --- > 1 file changed, 3 deletions(-)
Patch applied. Thanks. -- Email: Herbert Xu <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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