dsa_sign_setup
int (*dsa_sign_setup)(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp,
return dsam->dsa_sign_setup;
dsam->dsa_sign_setup = sign_setup;
if (!dsa_sign_setup(dsa, ctx, &kinv, &ret->r, dgst, dlen,
return dsa_sign_setup(dsa, ctx_in, kinvp, rp, NULL, 0,
static int dsa_sign_setup(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp,
return dsa->meth->dsa_sign_setup(dsa, ctx_in, kinvp, rp);