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.
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@xxxxxxx> 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.
