EVP_KDF_CTX *EVP_KDF_CTX_dup(const EVP_KDF_CTX *src);
int EVP_KDF_number(const EVP_KDF *kdf);
int EVP_KDF_is_a(const EVP_KDF *kdf, const char *name);
+const char *EVP_KDF_name(const EVP_KDF *kdf);
const OSSL_PROVIDER *EVP_KDF_provider(const EVP_KDF *kdf);
const EVP_KDF *EVP_KDF_CTX_kdf(EVP_KDF_CTX *ctx);