While upgrading to openssl 1.1.1 from 1.0.2k . I came across this code snippet : if (rsa->flags & RSA_FLAG_SIGN_VER) return rsa->meth->rsa_sign (type, m, lLen, sigret, siglen, rsa);
>From Docs : Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions will be called when RSA_sign() and RSA_verify() are used. /* * New sign and verify functions: some libraries don't allow arbitrary * data to be signed/verified: this allows them to be used. Note: for * this to work the RSA_public_decrypt() and RSA_private_encrypt() should * *NOT* be used RSA_sign(), RSA_verify() should be used instead. */ In Latest Openssl 1.1.1 : -- RSA_FLAG_SIGN_VER is not required . To get flags : RSA_flags(rsa). -- "struct rsa_meth_st" has "rsa_sign" declared as a function pointer . I cannot find any actual function definition that the above "meth->rsa_sign " might point to , which can be called as this forward declaration is not allowed anymore . Maybe "RSA_sign()" ?? Moreover , "RSA_sign()" function has the same return code snippet above. . So, what is a suitable replacement for the above snippet in openssl 1.1.1g ?? Can Someone help me on this !!, TIA . Regards, Prud.