Re: [PATCH ima-evm-utils v3] ima-evm-utils: Support SM2 algorithm for sign and verify

Mimi Zohar
2021-07-09T12:05:50Z

On Fri, 2021-07-09 at 17:06 +0800, Tianjia Zhang wrote:
> On 7/7/21 10:28 AM, Mimi Zohar wrote:

> > I'm also seeing:
> > - openssl req -verbose -new -nodes -utf8 -days 10000 -batch -x509 -sm3
> > -sigopt distid:1234567812345678 -config test-ca.conf -copy_extensions
> > copyall -newkey sm2 -out test-sm2.cer -outform DER -keyout test-sm2.key
> > req: Unrecognized flag copy_extensions
> >
>
> This command is for openssl 3.0, and '-copy_extensions copyall' is also
> a parameter supported on 3.0. At present, the mainstream version of
> openssl 1.1.1 only partially supports SM2 signatures. For example, the
> USERID in the SM2 specification cannot be used, and the certificate
> cannot be operated in the command using the SM2/3 algorithm combination,
> just like the modification of libimaevm.c in this patch, this cannot be
> done directly through the openssl command, even if the '-copy_extensions
> copyall' parameter is deleted, this command will be failed on openssl
> 1.1.1. The final solution may be openssl 3.0.
>
> On openssl 1.1.1, there is no problem to operate the signature of the
> SM2/3 algorithm combination through the API. If it is possible, the
> sign_verify test of sm2/3 is not required. What is your opinion?

Instead of dropping the test altogether, add an openssl version
dependency.

thanks,

Mimi