RSA Signature Verification in OpenSSL 3.x

[Tomas Mraz]

Hello,

the primary point to post technical questions about OpenSSL is GitHub
Discussions on the OpenSSL project:

https://github.com/openssl/openssl/discussions/categories/q-a

As for the example code for RSA signatures there is some in the demos
subdirectory of the source tree. The example uses RSA-PSS but that can
be fairly easily adapted to RSA PKCS#1 1.5 signatures.

https://github.com/openssl/openssl/tree/master/demos/signature

Regards,

Tomas Mraz, OpenSSL

On Thu, 2024-02-08 at 19:22 +0000, Mayerhofer, Austin via openssl-users
wrote:
> 
> 
> 
> Hi all, does OpenSSL have a discord or slack with other experts such
> as yourselves? Or is this mailing list the primary place for support?
> Thanks in advance!
>  
> When it comes to verifying an RSA signature, is there an up to date
> OpenSSL 3.0 version
> ofhttps://gist.github.com/irbull/08339ddcd5686f509e9826964b17bb59
> that doesn’t use deprecated 1.1.x functions such as
> EVP_PKEY_assign_RSA() and PEM_read_bio_RSA_PUBKEY()?
>  
> I read through the migration guide, but I’m still a bit lost on what
> needs replacing to get a 3.0 FIPS compliant RSA verification
> algorithm.
>  
> Is there an updated example, or any resources to help with the above
> migration?
>  
> Thanks for any help!
> 
> 
> This message has been scanned for malware by Forcepoint. 
> www.forcepoint.com

-- 
Tomáš Mráz, OpenSSL