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Add hmac over encrypted value during transaction

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This commit is contained in:
cslashm 2019-09-25 14:31:14 +02:00
parent b8643752c1
commit d25acd7a1d
3 changed files with 190 additions and 106 deletions
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27
src/device/device_ledger.hpp
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@ -90,6 +90,25 @@ namespace hw {
void log();
};
class SecHMAC {
public:
uint32_t sec[32];
uint32_t hmac[32];
SecHMAC(const uint8_t s[32], const uint8_t m[32]);
};
class HMACmap {
public:
std::vector<SecHMAC> hmacs;
void find_mac(const uint8_t sec[32], uint8_t hmac[32]) ;
void add_mac(const uint8_t sec[32], const uint8_t hmac[32]) ;
void clear() ;
};
#define BUFFER_SEND_SIZE 262
#define BUFFER_RECV_SIZE 262
@ -115,15 +134,21 @@ namespace hw {
int set_command_header(unsigned char ins, unsigned char p1 = 0x00, unsigned char p2 = 0x00);
int set_command_header_noopt(unsigned char ins, unsigned char p1 = 0x00, unsigned char p2 = 0x00);
void send_simple(unsigned char ins, unsigned char p1 = 0x00);
void send_secret(const unsigned char sec[32], int &offset);
void receive_secret(unsigned char sec[32], int &offset);
// hw running mode
device_mode mode;
bool tx_in_progress;
// map public destination key to ephemeral destination key
Keymap key_map;
bool add_output_key_mapping(const crypto::public_key &Aout, const crypto::public_key &Bout, const bool is_subaddress, const bool is_change,
const bool need_additional, const size_t real_output_index,
const rct::key &amount_key, const crypto::public_key &out_eph_public_key);
//hmac for some encrypted value
HMACmap hmac_map;
// To speed up blockchain parsing the view key maybe handle here.
crypto::secret_key viewkey;
bool has_view_key;