enum {
	GO_EVP_AEAD_DEFAULT_TAG_LENGTH = 0
};
size_t _goboringcrypto_EVP_AEAD_key_length(const GO_EVP_AEAD*);
size_t _goboringcrypto_EVP_AEAD_nonce_length(const GO_EVP_AEAD*);
size_t _goboringcrypto_EVP_AEAD_max_overhead(const GO_EVP_AEAD*);
size_t _goboringcrypto_EVP_AEAD_max_tag_len(const GO_EVP_AEAD*);
typedef struct GO_EVP_AEAD_CTX { char data[600]; } GO_EVP_AEAD_CTX;
void _goboringcrypto_EVP_AEAD_CTX_zero(GO_EVP_AEAD_CTX*);

}

func (g *aesGCM) NonceSize() int {
	return int(C._goboringcrypto_EVP_AEAD_nonce_length(g.aead))
}

func (g *aesGCM) Overhead() int {
	return int(C._goboringcrypto_EVP_AEAD_max_overhead(g.aead))
}

// base returns the address of the underlying array in b,
// being careful not to panic when b has zero length.
func base(b []byte) *C.uint8_t {
	if len(b) == 0 {
		return nil
	}