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Merge pull request #5958

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d25acd7 Add hmac over encrypted value during transaction (clashm)
34f28a7 Add display address (clashm)
235b94e Revert PR #5835 (export view key) (clashm)
32febd2 Fix debug feature (clashm)
pull/326/head
luigi1111 5 years ago
parent 0a4920414f 32febd277d
commit 07c6789148
No known key found for this signature in database
GPG Key ID: F4ACA0183641E010
3 changed files with 217 additions and 108 deletions
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34
src/cryptonote_core/cryptonote_tx_utils.cpp
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@ -612,23 +612,27 @@ namespace cryptonote
{
hw::device &hwdev = sender_account_keys.get_device();
hwdev.open_tx(tx_key);
try {
// figure out if we need to make additional tx pubkeys
size_t num_stdaddresses = 0;
size_t num_subaddresses = 0;
account_public_address single_dest_subaddress;
classify_addresses(destinations, change_addr, num_stdaddresses, num_subaddresses, single_dest_subaddress);
bool need_additional_txkeys = num_subaddresses > 0 && (num_stdaddresses > 0 || num_subaddresses > 1);
if (need_additional_txkeys)
{
additional_tx_keys.clear();
for (const auto &d: destinations)
additional_tx_keys.push_back(keypair::generate(sender_account_keys.get_device()).sec);
}
// figure out if we need to make additional tx pubkeys
size_t num_stdaddresses = 0;
size_t num_subaddresses = 0;
account_public_address single_dest_subaddress;
classify_addresses(destinations, change_addr, num_stdaddresses, num_subaddresses, single_dest_subaddress);
bool need_additional_txkeys = num_subaddresses > 0 && (num_stdaddresses > 0 || num_subaddresses > 1);
if (need_additional_txkeys)
{
additional_tx_keys.clear();
for (const auto &d: destinations)
additional_tx_keys.push_back(keypair::generate(sender_account_keys.get_device()).sec);
bool r = construct_tx_with_tx_key(sender_account_keys, subaddresses, sources, destinations, change_addr, extra, tx, unlock_time, tx_key, additional_tx_keys, rct, rct_config, msout);
hwdev.close_tx();
return r;
} catch(...) {
hwdev.close_tx();
throw;
}
bool r = construct_tx_with_tx_key(sender_account_keys, subaddresses, sources, destinations, change_addr, extra, tx, unlock_time, tx_key, additional_tx_keys, rct, rct_config, msout);
hwdev.close_tx();
return r;
}
//---------------------------------------------------------------
bool construct_tx(const account_keys& sender_account_keys, std::vector<tx_source_entry>& sources, const std::vector<tx_destination_entry>& destinations, const boost::optional<cryptonote::account_public_address>& change_addr, const std::vector<uint8_t> &extra, transaction& tx, uint64_t unlock_time)

262
src/device/device_ledger.cpp
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@ -64,6 +64,41 @@ namespace hw {
crypto::secret_key dbg_spendkey;
#endif
/* ===================================================================== */
/* === hmacmap ==== */
/* ===================================================================== */
SecHMAC::SecHMAC(const uint8_t s[32], const uint8_t h[32]) {
memcpy(this->sec, s, 32);
memcpy(this->hmac, h, 32);
}
void HMACmap::find_mac(const uint8_t sec[32], uint8_t hmac[32]) {
size_t sz = hmacs.size();
log_hexbuffer("find_mac: lookup for ", (char*)sec,32);
for (size_t i=0; i<sz; i++) {
log_hexbuffer("find_mac: - try ",(char*)hmacs[i].sec,32);
if (memcmp(sec, hmacs[i].sec, 32) == 0) {
memcpy(hmac, hmacs[i].hmac, 32);
log_hexbuffer("find_mac: - found ",(char*)hmacs[i].hmac,32);
return;
}
}
throw std::runtime_error("Protocol error: try to send untrusted secret");
}
void HMACmap::add_mac(const uint8_t sec[32], const uint8_t hmac[32]) {
log_hexbuffer("add_mac: sec ", (char*)sec,32);
log_hexbuffer("add_mac: hmac ", (char*)hmac,32);
hmacs.push_back(SecHMAC(sec,hmac));
}
void HMACmap::clear() {
hmacs.clear();
}
/* ===================================================================== */
/* === Keymap ==== */
/* ===================================================================== */
@ -162,9 +197,11 @@ namespace hw {
#define INS_RESET 0x02
#define INS_GET_KEY 0x20
#define INS_DISPLAY_ADDRESS 0x21
#define INS_PUT_KEY 0x22
#define INS_GET_CHACHA8_PREKEY 0x24
#define INS_VERIFY_KEY 0x26
#define INS_MANAGE_SEEDWORDS 0x28
#define INS_SECRET_KEY_TO_PUBLIC_KEY 0x30
#define INS_GEN_KEY_DERIVATION 0x32
@ -205,6 +242,7 @@ namespace hw {
this->reset_buffer();
this->mode = NONE;
this->has_view_key = false;
this->tx_in_progress = false;
MDEBUG( "Device "<<this->id <<" Created");
}
@ -317,6 +355,26 @@ namespace hw {
}
}
void device_ledger::send_secret(const unsigned char sec[32], int &offset) {
MDEBUG("send_secret: " << this->tx_in_progress);
memmove(this->buffer_send+offset, sec, 32);
offset +=32;
if (this->tx_in_progress) {
this->hmac_map.find_mac((uint8_t*)sec, this->buffer_send+offset);
offset += 32;
}
}
void device_ledger::receive_secret(unsigned char sec[32], int &offset) {
MDEBUG("receive_secret: " << this->tx_in_progress);
memmove(sec, this->buffer_recv+offset, 32);
offset += 32;
if (this->tx_in_progress) {
this->hmac_map.add_mac((uint8_t*)sec, this->buffer_recv+offset);
offset += 32;
}
}
bool device_ledger::reset() {
reset_buffer();
int offset = set_command_header_noopt(INS_RESET);
@ -418,10 +476,10 @@ namespace hw {
#ifdef DEBUG_HWDEVICE
cryptonote::account_public_address pubkey;
this->get_public_address(pubkey);
#endif
crypto::secret_key vkey;
crypto::secret_key skey;
this->get_secret_keys(vkey,skey);
#endif
return true;
}
@ -509,6 +567,7 @@ namespace hw {
}
#ifdef DEBUG_HWDEVICE
send_simple(INS_GET_KEY, 0x04);
memmove(dbg_viewkey.data, this->buffer_recv+0, 32);
memmove(dbg_spendkey.data, this->buffer_recv+32, 32);
#endif
@ -538,6 +597,27 @@ namespace hw {
return true;
}
void device_ledger::display_address(const cryptonote::subaddress_index& index, const boost::optional<crypto::hash8> &payment_id) {
AUTO_LOCK_CMD();
int offset = set_command_header_noopt(INS_DISPLAY_ADDRESS, payment_id?1:0);
//index
memmove(this->buffer_send+offset, &index, sizeof(cryptonote::subaddress_index));
offset +=8 ;
//payment ID
if (payment_id) {
memmove(this->buffer_send+offset, (*payment_id).data, 8);
} else {
memset(this->buffer_send+offset, 0, 8);
}
offset +=8;
this->buffer_send[4] = offset-5;
this->length_send = offset;
CHECK_AND_ASSERT_THROW_MES(this->exchange_wait_on_input() == 0, "Timeout/Error on display address.");
}
/* ======================================================================= */
/* SUB ADDRESS */
/* ======================================================================= */
@ -573,8 +653,7 @@ namespace hw {
memmove(this->buffer_send+offset, pub.data, 32);
offset += 32;
//derivation
memmove(this->buffer_send+offset, derivation.data, 32);
offset += 32;
this->send_secret((unsigned char*)derivation.data, offset);
//index
this->buffer_send[offset+0] = output_index>>24;
this->buffer_send[offset+1] = output_index>>16;
@ -706,8 +785,7 @@ namespace hw {
int offset = set_command_header_noopt(INS_GET_SUBADDRESS_SECRET_KEY);
//sec
memmove(this->buffer_send+offset, sec.data, 32);
offset += 32;
this->send_secret((unsigned char*)sec.data, offset);
//index
static_assert(sizeof(cryptonote::subaddress_index) == 8, "cryptonote::subaddress_index shall be 8 bytes length");
memmove(this->buffer_send+offset, &index, sizeof(cryptonote::subaddress_index));
@ -717,7 +795,8 @@ namespace hw {
this->length_send = offset;
this->exchange();
memmove(sub_sec.data, &this->buffer_recv[0], 32);
offset = 0;
this->receive_secret((unsigned char*)sub_sec.data, offset);
#ifdef DEBUG_HWDEVICE
crypto::secret_key sub_sec_clear = hw::ledger::decrypt(sub_sec);
@ -737,8 +816,7 @@ namespace hw {
offset = set_command_header_noopt(INS_VERIFY_KEY);
//sec
memmove(this->buffer_send+offset, secret_key.data, 32);
offset += 32;
this->send_secret((unsigned char*)secret_key.data, offset);
//pub
memmove(this->buffer_send+offset, public_key.data, 32);
offset += 32;
@ -774,9 +852,7 @@ namespace hw {
memmove(this->buffer_send+offset, P.bytes, 32);
offset += 32;
//sec
memmove(this->buffer_send+offset, a.bytes, 32);
offset += 32;
this->send_secret(a.bytes, offset);
this->buffer_send[4] = offset-5;
this->length_send = offset;
@ -805,8 +881,7 @@ namespace hw {
int offset = set_command_header_noopt(INS_SECRET_SCAL_MUL_BASE);
//sec
memmove(this->buffer_send+offset, a.bytes, 32);
offset += 32;
this->send_secret(a.bytes, offset);
this->buffer_send[4] = offset-5;
this->length_send = offset;
@ -824,6 +899,7 @@ namespace hw {
bool device_ledger::sc_secret_add( crypto::secret_key &r, const crypto::secret_key &a, const crypto::secret_key &b) {
AUTO_LOCK_CMD();
int offset;
#ifdef DEBUG_HWDEVICE
const crypto::secret_key a_x = hw::ledger::decrypt(a);
@ -836,20 +912,19 @@ namespace hw {
log_hexbuffer("sc_secret_add: [[OUT]] aG", (char*)r_x.data, 32);
#endif
int offset = set_command_header_noopt(INS_SECRET_KEY_ADD);
offset = set_command_header_noopt(INS_SECRET_KEY_ADD);
//sec key
memmove(this->buffer_send+offset, a.data, 32);
offset += 32;
this->send_secret((unsigned char*)a.data, offset);
//sec key
memmove(this->buffer_send+offset, b.data, 32);
offset += 32;
this->send_secret((unsigned char*)b.data, offset);
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//pub key
memmove(r.data, &this->buffer_recv[0], 32);
//sec key
offset = 0;
this->receive_secret((unsigned char*)r.data, offset);
#ifdef DEBUG_HWDEVICE
crypto::secret_key r_clear = hw::ledger::decrypt(r);
@ -861,6 +936,8 @@ namespace hw {
crypto::secret_key device_ledger::generate_keys(crypto::public_key &pub, crypto::secret_key &sec, const crypto::secret_key& recovery_key, bool recover) {
AUTO_LOCK_CMD();
int offset;
if (recover) {
throw std::runtime_error("device generate key does not support recover");
}
@ -877,9 +954,11 @@ namespace hw {
send_simple(INS_GENERATE_KEYPAIR);
offset = 0;
//pub key
memmove(pub.data, &this->buffer_recv[0], 32);
memmove(sec.data, &this->buffer_recv[32], 32);
offset += 32;
this->receive_secret((unsigned char*)sec.data, offset);
#ifdef DEBUG_HWDEVICE
crypto::secret_key sec_clear = hw::ledger::decrypt(sec);
@ -922,15 +1001,16 @@ namespace hw {
memmove(this->buffer_send+offset, pub.data, 32);
offset += 32;
//sec
memmove(this->buffer_send+offset, sec.data, 32);
offset += 32;
this->send_secret((unsigned char*)sec.data, offset);
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
offset = 0;
//derivattion data
memmove(derivation.data, &this->buffer_recv[0], 32);
this->receive_secret((unsigned char*)derivation.data, offset);
r = true;
}
#ifdef DEBUG_HWDEVICE
@ -978,9 +1058,9 @@ namespace hw {
#endif
int offset = set_command_header_noopt(INS_DERIVATION_TO_SCALAR);
//derivattion
memmove(this->buffer_send+offset, derivation.data, 32);
offset += 32;
//derivation
this->send_secret((unsigned char*)derivation.data, offset);
//index
this->buffer_send[offset+0] = output_index>>24;
this->buffer_send[offset+1] = output_index>>16;
@ -992,8 +1072,9 @@ namespace hw {
this->length_send = offset;
this->exchange();
//derivattion data
memmove(res.data, &this->buffer_recv[0], 32);
//derivation data
offset = 0;
this->receive_secret((unsigned char*)res.data, offset);
#ifdef DEBUG_HWDEVICE
crypto::ec_scalar res_clear = hw::ledger::decrypt(res);
@ -1020,8 +1101,7 @@ namespace hw {
int offset = set_command_header_noopt(INS_DERIVE_SECRET_KEY);
//derivation
memmove(this->buffer_send+offset, derivation.data, 32);
offset += 32;
this->send_secret((unsigned char*)derivation.data, offset);
//index
this->buffer_send[offset+0] = output_index>>24;
this->buffer_send[offset+1] = output_index>>16;
@ -1029,15 +1109,15 @@ namespace hw {
this->buffer_send[offset+3] = output_index>>0;
offset += 4;
//sec
memmove(this->buffer_send+offset, sec.data, 32);
offset += 32;
this->send_secret((unsigned char*)sec.data, offset);
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//pub key
memmove(derived_sec.data, &this->buffer_recv[0], 32);
offset = 0;
//sec key
this->receive_secret((unsigned char*)derived_sec.data, offset);
#ifdef DEBUG_HWDEVICE
crypto::secret_key derived_sec_clear = hw::ledger::decrypt(derived_sec);
@ -1064,8 +1144,7 @@ namespace hw {
int offset = set_command_header_noopt(INS_DERIVE_PUBLIC_KEY);
//derivation
memmove(this->buffer_send+offset, derivation.data, 32);
offset += 32;
this->send_secret((unsigned char*)derivation.data, offset);
//index
this->buffer_send[offset+0] = output_index>>24;
this->buffer_send[offset+1] = output_index>>16;
@ -1106,8 +1185,7 @@ namespace hw {
int offset = set_command_header_noopt(INS_SECRET_KEY_TO_PUBLIC_KEY);
//sec key
memmove(this->buffer_send+offset, sec.data, 32);
offset += 32;
this->send_secret((unsigned char*)sec.data, offset);
this->buffer_send[4] = offset-5;
this->length_send = offset;
@ -1141,8 +1219,7 @@ namespace hw {
memmove(this->buffer_send+offset, pub.data, 32);
offset += 32;
//sec
memmove(this->buffer_send+offset, sec.data, 32);
offset += 32;
this->send_secret((unsigned char*)sec.data, offset);
this->buffer_send[4] = offset-5;
this->length_send = offset;
@ -1211,8 +1288,7 @@ namespace hw {
memmove(&this->buffer_send[offset], D.data, 32);
offset += 32;
// r
memmove(&this->buffer_send[offset], r.data, 32);
offset += 32;
this->send_secret((unsigned char*)r.data, offset);
this->buffer_send[4] = offset-5;
this->length_send = offset;
@ -1225,6 +1301,7 @@ namespace hw {
log_hexbuffer("GENERATE_TX_PROOF: **r** ", sig.r.data, sizeof( sig.r.data));
this->controle_device->generate_tx_proof(prefix_hash_x, R_x, A_x, B_x, D_x, r_x, sig_x);
MDEBUG("FAIL is normal if random is not fixed in proof");
hw::ledger::check32("generate_tx_proof", "c", sig_x.c.data, sig.c.data);
hw::ledger::check32("generate_tx_proof", "r", sig_x.r.data, sig.r.data);
@ -1233,8 +1310,10 @@ namespace hw {
bool device_ledger::open_tx(crypto::secret_key &tx_key) {
AUTO_LOCK_CMD();
this->lock();
key_map.clear();
hmac_map.clear();
this->tx_in_progress = true;
int offset = set_command_header_noopt(INS_OPEN_TX, 0x01);
//account
@ -1248,7 +1327,13 @@ namespace hw {
this->length_send = offset;
this->exchange();
memmove(tx_key.data, &this->buffer_recv[32], 32);
//skip R, receive: r, r_hmac, fake_a, a_hmac, fake_b, hmac_b
unsigned char tmp[32];
offset = 32;
this->receive_secret((unsigned char*)tx_key.data, offset);
this->receive_secret(tmp, offset);
this->receive_secret(tmp, offset);
#ifdef DEBUG_HWDEVICE
const crypto::secret_key r_x = hw::ledger::decrypt(tx_key);
log_hexbuffer("open_tx: [[OUT]] R ", (char*)&this->buffer_recv[0], 32);
@ -1276,8 +1361,7 @@ namespace hw {
memmove(&this->buffer_send[offset], public_key.data, 32);
offset += 32;
//sec
memmove(&this->buffer_send[offset], secret_key.data, 32);
offset += 32;
this->send_secret((unsigned char*)secret_key.data, offset);
//id
memmove(&this->buffer_send[offset], payment_id.data, 8);
offset += 8;
@ -1365,8 +1449,7 @@ namespace hw {
this->buffer_send[offset+3] = tx_version>>0;
offset += 4;
//tx_key
memmove(&this->buffer_send[offset], tx_key.data, 32);
offset += 32;
this->send_secret((unsigned char*)tx_key.data, offset);
//txkey_pub
memmove(&this->buffer_send[offset], txkey_pub.data, 32);
offset += 32;
@ -1394,11 +1477,11 @@ namespace hw {
offset++;
//additional_tx_key
if (need_additional_txkeys) {
memmove(&this->buffer_send[offset], additional_txkey.sec.data, 32);
this->send_secret((unsigned char*)additional_txkey.sec.data, offset);
} else {
memset(&this->buffer_send[offset], 0, 32);
offset += 32;
}
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
@ -1411,9 +1494,8 @@ namespace hw {
{
ASSERT_X(recv_len>=32, "Not enought data from device");
crypto::secret_key scalar1;
memmove(scalar1.data, &this->buffer_recv[offset],32);
this->receive_secret((unsigned char*)scalar1.data, offset);
amount_keys.push_back(rct::sk2rct(scalar1));
offset += 32;
recv_len -= 32;
}
ASSERT_X(recv_len>=32, "Not enought data from device");
@ -1464,8 +1546,7 @@ namespace hw {
rct::key mask;
int offset = set_command_header_noopt(INS_GEN_COMMITMENT_MASK);
// AKout
memmove(this->buffer_send+offset, AKout.bytes, 32);
offset += 32;
this->send_secret(AKout.bytes, offset);
this->buffer_send[4] = offset-5;
this->length_send = offset;
@ -1494,8 +1575,7 @@ namespace hw {
this->buffer_send[offset] = short_amount?0x02:0x00;
offset += 1;
// AKout
memmove(this->buffer_send+offset, AKout.bytes, 32);
offset += 32;
this->send_secret(AKout.bytes, offset);
//mask k
memmove(this->buffer_send+offset, unmasked.mask.bytes, 32);
offset += 32;
@ -1535,8 +1615,7 @@ namespace hw {
this->buffer_send[offset] = short_amount?0x02:0x00;
offset += 1;
// AKout
memmove(this->buffer_send+offset, AKout.bytes, 32);
offset += 32;
this->send_secret(AKout.bytes, offset);
//mask k
memmove(this->buffer_send+offset, masked.mask.bytes, 32);
offset += 32;
@ -1649,26 +1728,21 @@ namespace hw {
this->buffer_send[offset] = (i==outputs_size-1)? 0x00:0x80 ;
this->buffer_send[offset] |= (type==rct::RCTTypeBulletproof2)?0x02:0x00;
offset += 1;
if (found) {
//is_subaddress
this->buffer_send[offset] = outKeys.is_subaddress;
offset++;
//is_change_address
this->buffer_send[offset] = outKeys.is_change_address;
offset++;
//Aout
memmove(this->buffer_send+offset, outKeys.Aout.bytes, 32);
offset+=32;
//Bout
memmove(this->buffer_send+offset, outKeys.Bout.bytes, 32);
offset+=32;
//AKout
memmove(this->buffer_send+offset, outKeys.AKout.bytes, 32);
offset+=32;
} else {
// dummy: is_subaddress Aout Bout AKout
offset += 2+32*3;
}
//is_subaddress
this->buffer_send[offset] = outKeys.is_subaddress;
offset++;
//is_change_address
this->buffer_send[offset] = outKeys.is_change_address;
offset++;
//Aout
memmove(this->buffer_send+offset, outKeys.Aout.bytes, 32);
offset+=32;
//Bout
memmove(this->buffer_send+offset, outKeys.Bout.bytes, 32);
offset+=32;
//AKout
this->send_secret(outKeys.AKout.bytes, offset);
//C
memmove(this->buffer_send+offset, data+C_offset,32);
offset += 32;
@ -1760,17 +1834,19 @@ namespace hw {
memmove(this->buffer_send+offset, H.bytes, 32);
offset += 32;
//mask xin
memmove(this->buffer_send+offset, xx.bytes, 32);
offset += 32;
this->send_secret(xx.bytes, offset);
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
memmove(a.bytes, &this->buffer_recv[32*0], 32);
memmove(aG.bytes, &this->buffer_recv[32*1], 32);
memmove(aHP.bytes, &this->buffer_recv[32*2], 32);
memmove(II.bytes, &this->buffer_recv[32*3], 32);
offset = 0;
this->receive_secret(a.bytes, offset);
memmove(aG.bytes, &this->buffer_recv[offset], 32);
offset +=32;
memmove(aHP.bytes, &this->buffer_recv[offset], 32);
offset +=32;
memmove(II.bytes, &this->buffer_recv[offset], 32);
#ifdef DEBUG_HWDEVICE
a_x = hw::ledger::decrypt(a);
@ -1788,6 +1864,7 @@ namespace hw {
bool device_ledger::mlsag_prepare(rct::key &a, rct::key &aG) {
AUTO_LOCK_CMD();
int offset;
#ifdef DEBUG_HWDEVICE
rct::key a_x;
@ -1796,8 +1873,9 @@ namespace hw {
send_simple(INS_MLSAG, 0x01);
memmove(a.bytes, &this->buffer_recv[32*0], 32);
memmove(aG.bytes, &this->buffer_recv[32*1], 32);
offset = 0;
this->receive_secret(a.bytes, offset);
memmove(aG.bytes, &this->buffer_recv[offset], 32);
#ifdef DEBUG_HWDEVICE
a_x = hw::ledger::decrypt(a);
@ -1870,11 +1948,9 @@ namespace hw {
}
offset += 1;
//xx
memmove(this->buffer_send+offset, xx[j].bytes, 32);
offset += 32;
this->send_secret(xx[j].bytes, offset);
//alpa
memmove(this->buffer_send+offset, alpha[j].bytes, 32);
offset += 32;
this->send_secret(alpha[j].bytes, offset);
this->buffer_send[4] = offset-5;
this->length_send = offset;
@ -1900,6 +1976,10 @@ namespace hw {
bool device_ledger::close_tx() {
AUTO_LOCK_CMD();
send_simple(INS_CLOSE_TX);
key_map.clear();
hmac_map.clear();
this->tx_in_progress = false;
this->unlock();
return true;
}

29
src/device/device_ledger.hpp
Unescape View File

@ -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;
@ -174,7 +199,7 @@ namespace hw {
bool get_public_address(cryptonote::account_public_address &pubkey) override;
bool get_secret_keys(crypto::secret_key &viewkey , crypto::secret_key &spendkey) override;
bool generate_chacha_key(const cryptonote::account_keys &keys, crypto::chacha_key &key, uint64_t kdf_rounds) override;
void display_address(const cryptonote::subaddress_index& index, const boost::optional<crypto::hash8> &payment_id) override;
/* ======================================================================= */
/* SUB ADDRESS */

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