filesystem_tx.h

/*******************************************************************************
 *   Ledger App - Bitcoin Wallet
 *   (c) 2016-2019 Ledger
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 ********************************************************************************/

#pragma once
#include "os.h"

#define MAX_BIP32_PATH 10
#define MAX_BIP32_PATH_LENGTH (4 * MAX_BIP32_PATH) + 1
#define BIP44_PATH_LEN 5
#define BIP44_PURPOSE_OFFSET 0
#define BIP44_COIN_TYPE_OFFSET 1
#define BIP44_ACCOUNT_OFFSET 2
#define BIP44_CHANGE_OFFSET 3
#define BIP44_ADDRESS_INDEX_OFFSET 4
#define MAX_BIP44_ACCOUNT_RECOMMENDED 100
#define MAX_BIP44_ADDRESS_INDEX_RECOMMENDED 50000

struct transaction_summary_s {
  unsigned char authorizationHash[32];
  unsigned char keyPath[MAX_BIP32_PATH_LENGTH];
  unsigned char
      transactionNonce[8]; // used to bind to the current set of inputs
  unsigned short messageLength;
  unsigned char sighashType;
  int payToAddressVersion;
  int payToScriptHashVersion;
};
typedef struct transaction_summary_s transaction_summary_t;