Symbol: ECDSA_sign_setup
crypto/libressl/crypto/ecdsa/ecs_ossl.c
304
if (!ECDSA_sign_setup(eckey, ctx, &kinv, &ret->r)) {
crypto/libressl/include/openssl/ecdsa.h
211
int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, BIGNUM **kinv,