C._goboringcrypto_RSA_get0_key(key, &n, &e, &d)
	C._goboringcrypto_RSA_get0_factors(key, &p, &q)
	C._goboringcrypto_RSA_get0_crt_params(key, &dp, &dq, &qinv)
	return bnToBig(n), bnToBig(e), bnToBig(d), bnToBig(p), bnToBig(q), bnToBig(dp), bnToBig(dq), bnToBig(qinv), nil
}

type PublicKeyRSA struct {
	// _key MUST NOT be accessed directly. Instead, use the withKey method.
	_key *C.GO_RSA
}

	}
	defer C._goboringcrypto_BN_free(by)
	if C._goboringcrypto_EC_POINT_get_affine_coordinates_GFp(group, pt, bx, by, nil) == 0 {
		return nil, nil, nil, fail("EC_POINT_get_affine_coordinates_GFp")
	}
	return bnToBig(bx), bnToBig(by), bnToBig(bd), nil

	return C._goboringcrypto_BN_le2bn(wbase(x), C.size_t(len(x)*wordBytes), nil)
}

func bytesToBN(x []byte) *C.GO_BIGNUM {
	return C._goboringcrypto_BN_bin2bn((*C.uint8_t)(&x[0]), C.size_t(len(x)), nil)
}

func bnToBig(bn *C.GO_BIGNUM) BigInt {
	x := make(BigInt, (C._goboringcrypto_BN_num_bytes(bn)+wordBytes-1)/wordBytes)
	if C._goboringcrypto_BN_bn2le_padded(wbase(x), C.size_t(len(x)*wordBytes), bn) == 0 {