const EVP_CIPHER *evp_get_cipherbyname_ex(OPENSSL_CTX *libctx, const char *name);
const EVP_MD *evp_get_digestbyname_ex(OPENSSL_CTX *libctx, const char *name);
const EVP_CIPHER *evp_get_cipherbyname_ex(OPENSSL_CTX *libctx, const char *name);
const EVP_MD *evp_get_digestbyname_ex(OPENSSL_CTX *libctx, const char *name);