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/* Copyright 2015 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef __EC_UTIL_SIGNER_COMMON_GNUBBY_H
#define __EC_UTIL_SIGNER_COMMON_GNUBBY_H
#include <stddef.h>
#include <inttypes.h>
#include <libusb-1.0/libusb.h>
typedef struct env_md_ctx_st EVP_MD_CTX;
typedef struct evp_pkey_st EVP_PKEY;
class Gnubby {
public:
Gnubby();
~Gnubby();
bool ok() const { return handle_ != NULL; }
int Sign(EVP_MD_CTX* ctx, uint8_t* signature, uint32_t* siglen, EVP_PKEY* key);
private:
int send_to_device(uint8_t instruction,
const uint8_t* payload,
size_t length);
int receive_from_device(uint8_t* dest, size_t length);
libusb_context* ctx_;
libusb_device_handle* handle_;
};
#define MAX_APDU_SIZE 1200
#define LIBUSB_ERR -1
#define VERBOSE
#endif // __EC_UTIL_SIGNER_COMMON_GNUBBY_H
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