ECDSA_SIG not works

[Thomas Dwyer III]

Most (all?) of the OpenSSL data structures are opaque now and require
accessor functions to get/set the member fields. In your case, see the man
page for ECDSA_SIG_set0():

       The r and s values can be set by calling ECDSA_SIG_set0() and passing
       the new values for r and s as parameters to the function. Calling
this
       function transfers the memory management of the values to the
ECDSA_SIG
       object, and therefore the values that have been passed in should not
be
       freed directly after this function has been called.


Regards,
Tom.III


On Fri, Dec 23, 2022 at 2:31 AM Fernando Elena Benavente <
fernando.elena.benavente at gmv.com> wrote:

> Good morning everyone,
>
>
>
> I have problems with the OpenSSL ECDSA ,specifically with the EDSA_SIG
> struct. When I initialize the struct and I access to its params (r and s) I
> get the following error: “error: invalid use of incomplete typedef
> ‘ECDSA_SIG’ {aka ‘struct ECDSA_SIG_st’}”. I am using the latest version of
> OpenSSL (3.0.7)
>
>
>
> https://gyazo.com/375f2fe6a04352f2ee3f3ab4915e27c9
>
>
>
> https://gyazo.com/b0817f5e81f86b0b6dcbd405c6cde18b
>
>
>
> any tips of why it could happen?
>
>
>
> Thanks a lot, Fernando.
>
>
>
>
>
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