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wownero/src/device/device_ledger.cpp
cslashm bdf5a3ad3f Fix PCSC compilation under windows 
PR3843 based on release-v0.12 => rebased on master
2018-05-23 10:22:55 +02:00

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// Copyright (c) 2017-2018, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
#include "device_ledger.hpp"
#include "log.hpp"
#include "ringct/rctOps.h"
#include "cryptonote_basic/account.h"
#include "cryptonote_basic/subaddress_index.h"
#include <boost/thread/locks.hpp>
#include <boost/thread/lock_guard.hpp>
namespace hw {
namespace ledger {
#ifdef WITH_DEVICE_LEDGER
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "device.ledger"
/* ===================================================================== */
/* === Debug ==== */
/* ===================================================================== */
#ifdef WIN32
static char *pcsc_stringify_error(LONG rv) {
static __thread char out[20];
sprintf_s(out, sizeof(out), "0x%08lX", rv);
return out;
}
#endif
void set_apdu_verbose(bool verbose) {
apdu_verbose = verbose;
}
#define TRACKD MTRACE("hw")
#define ASSERT_RV(rv) CHECK_AND_ASSERT_THROW_MES((rv)==SCARD_S_SUCCESS, "Fail SCard API : (" << (rv) << ") "<< pcsc_stringify_error(rv)<<" Device="<<this->id<<", hCard="<<hCard<<", hContext="<<hContext);
#define ASSERT_SW(sw,ok,msk) CHECK_AND_ASSERT_THROW_MES(((sw)&(mask))==(ok), "Wrong Device Status : SW=" << std::hex << (sw) << " (EXPECT=" << std::hex << (ok) << ", MASK=" << std::hex << (mask) << ")") ;
#define ASSERT_T0(exp) CHECK_AND_ASSERT_THROW_MES(exp, "Protocol assert failure: "#exp ) ;
#define ASSERT_X(exp,msg) CHECK_AND_ASSERT_THROW_MES(exp, msg);
#ifdef DEBUG_HWDEVICE
crypto::secret_key dbg_viewkey;
crypto::secret_key dbg_spendkey;
#endif
/* ===================================================================== */
/* === Keymap ==== */
/* ===================================================================== */
ABPkeys::ABPkeys(const rct::key& A, const rct::key& B, const bool is_subaddr, const size_t real_output_index, const rct::key& P, const rct::key& AK) {
Aout = A;
Bout = B;
is_subaddress = is_subaddr;
index = real_output_index;
Pout = P;
AKout = AK;
}
ABPkeys::ABPkeys(const ABPkeys& keys) {
Aout = keys.Aout;
Bout = keys.Bout;
is_subaddress = keys.is_subaddress;
index = keys.index;
Pout = keys.Pout;
AKout = keys.AKout;
}
bool Keymap::find(const rct::key& P, ABPkeys& keys) const {
size_t sz = ABP.size();
for (size_t i=0; i<sz; i++) {
if (ABP[i].Pout == P) {
keys = ABP[i];
return true;
}
}
return false;
}
void Keymap::add(const ABPkeys& keys) {
ABP.push_back(keys);
}
void Keymap::clear() {
ABP.clear();
}
#ifdef DEBUG_HWDEVICE
void Keymap::log() {
log_message("keymap", "content");
size_t sz = ABP.size();
for (size_t i=0; i<sz; i++) {
log_message(" keymap", std::to_string(i));
log_hexbuffer(" Aout", (char*)ABP[i].Aout.bytes, 32);
log_hexbuffer(" Bout", (char*)ABP[i].Bout.bytes, 32);
log_message (" is_sub", std::to_string(ABP[i].is_subaddress));
log_message (" index", std::to_string(ABP[i].index));
log_hexbuffer(" Pout", (char*)ABP[i].Pout.bytes, 32);
}
}
#endif
/* ===================================================================== */
/* === Internal Helpers ==== */
/* ===================================================================== */
static bool is_fake_view_key(const crypto::secret_key &sec) {
return sec == crypto::null_skey;
}
bool operator==(const crypto::key_derivation &d0, const crypto::key_derivation &d1) {
return !memcmp(&d0, &d1, sizeof(d0));
}
/* ===================================================================== */
/* === Device ==== */
/* ===================================================================== */
static int device_id = 0;
#define INS_NONE 0x00
#define INS_RESET 0x02
#define INS_GET_KEY 0x20
#define INS_PUT_KEY 0x22
#define INS_GET_CHACHA8_PREKEY 0x24
#define INS_VERIFY_KEY 0x26
#define INS_SECRET_KEY_TO_PUBLIC_KEY 0x30
#define INS_GEN_KEY_DERIVATION 0x32
#define INS_DERIVATION_TO_SCALAR 0x34
#define INS_DERIVE_PUBLIC_KEY 0x36
#define INS_DERIVE_SECRET_KEY 0x38
#define INS_GEN_KEY_IMAGE 0x3A
#define INS_SECRET_KEY_ADD 0x3C
#define INS_SECRET_KEY_SUB 0x3E
#define INS_GENERATE_KEYPAIR 0x40
#define INS_SECRET_SCAL_MUL_KEY 0x42
#define INS_SECRET_SCAL_MUL_BASE 0x44
#define INS_DERIVE_SUBADDRESS_PUBLIC_KEY 0x46
#define INS_GET_SUBADDRESS 0x48
#define INS_GET_SUBADDRESS_SPEND_PUBLIC_KEY 0x4A
#define INS_GET_SUBADDRESS_SECRET_KEY 0x4C
#define INS_OPEN_TX 0x70
#define INS_SET_SIGNATURE_MODE 0x72
#define INS_GET_ADDITIONAL_KEY 0x74
#define INS_STEALTH 0x76
#define INS_BLIND 0x78
#define INS_UNBLIND 0x7A
#define INS_VALIDATE 0x7C
#define INS_MLSAG 0x7E
#define INS_CLOSE_TX 0x80
#define INS_GET_RESPONSE 0xc0
void device_ledger::logCMD() {
if (apdu_verbose) {
char strbuffer[1024];
sprintf(strbuffer, "%.02x %.02x %.02x %.02x %.02x ",
this->buffer_send[0],
this->buffer_send[1],
this->buffer_send[2],
this->buffer_send[3],
this->buffer_send[4]
);
buffer_to_str(strbuffer+strlen(strbuffer), sizeof(strbuffer), (char*)(this->buffer_send+5), this->length_send-5);
MDEBUG( "CMD :" << strbuffer);
}
}
void device_ledger::logRESP() {
if (apdu_verbose) {
char strbuffer[1024];
sprintf(strbuffer, "%.02x%.02x ",
this->buffer_recv[this->length_recv-2],
this->buffer_recv[this->length_recv-1]
);
buffer_to_str(strbuffer+strlen(strbuffer), sizeof(strbuffer), (char*)(this->buffer_recv), this->length_recv-2);
MDEBUG( "RESP :" << strbuffer);
}
}
/* -------------------------------------------------------------- */
device_ledger::device_ledger() {
this->id = device_id++;
this->hCard = 0;
this->hContext = 0;
this->reset_buffer();
this->mode = NONE;
this->has_view_key = false;
MDEBUG( "Device "<<this->id <<" Created");
}
device_ledger::~device_ledger() {
this->release();
MDEBUG( "Device "<<this->id <<" Destroyed");
}
/* ======================================================================= */
/* LOCKER */
/* ======================================================================= */
//automatic lock one more level on device ensuring the current thread is allowed to use it
#define AUTO_LOCK_CMD() \
/* lock both mutexes without deadlock*/ \
boost::lock(device_locker, command_locker); \
/* make sure both already-locked mutexes are unlocked at the end of scope */ \
boost::lock_guard<boost::recursive_mutex> lock1(device_locker, boost::adopt_lock); \
boost::lock_guard<boost::mutex> lock2(command_locker, boost::adopt_lock)
//lock the device for a long sequence
void device_ledger::lock(void) {
MDEBUG( "Ask for LOCKING for device "<<this->name << " in thread ");
device_locker.lock();
MDEBUG( "Device "<<this->name << " LOCKed");
}
//lock the device for a long sequence
bool device_ledger::try_lock(void) {
MDEBUG( "Ask for LOCKING(try) for device "<<this->name << " in thread ");
bool r = device_locker.try_lock();
if (r) {
MDEBUG( "Device "<<this->name << " LOCKed(try)");
} else {
MDEBUG( "Device "<<this->name << " not LOCKed(try)");
}
return r;
}
//lock the device for a long sequence
void device_ledger::unlock(void) {
try {
MDEBUG( "Ask for UNLOCKING for device "<<this->name << " in thread ");
} catch (...) {
}
device_locker.unlock();
MDEBUG( "Device "<<this->name << " UNLOCKed");
}
/* ======================================================================= */
/* MISC */
/* ======================================================================= */
bool device_ledger::reset() {
int offset;
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_RESET;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
return true;
}
unsigned int device_ledger::exchange(unsigned int ok, unsigned int mask) {
LONG rv;
int sw;
ASSERT_T0(this->length_send <= BUFFER_SEND_SIZE);
logCMD();
this->length_recv = BUFFER_RECV_SIZE;
rv = SCardTransmit(this->hCard,
SCARD_PCI_T0, this->buffer_send, this->length_send,
NULL, this->buffer_recv, &this->length_recv);
ASSERT_RV(rv);
ASSERT_T0(this->length_recv <= BUFFER_RECV_SIZE);
logRESP();
sw = (this->buffer_recv[this->length_recv-2]<<8) | this->buffer_recv[this->length_recv-1];
ASSERT_SW(sw,ok,msk);
return sw;
}
void device_ledger::reset_buffer() {
this->length_send = 0;
memset(this->buffer_send, 0, BUFFER_SEND_SIZE);
this->length_recv = 0;
memset(this->buffer_recv, 0, BUFFER_RECV_SIZE);
}
/* ======================================================================= */
/* SETUP/TEARDOWN */
/* ======================================================================= */
bool device_ledger::set_name(const std::string & name) {
this->name = name;
return true;
}
const std::string device_ledger::get_name() const {
if (this->full_name.empty() || (this->hCard == 0)) {
return std::string("<disconnected:").append(this->name).append(">");
}
return this->full_name;
}
bool device_ledger::init(void) {
#ifdef DEBUG_HWDEVICE
this->controle_device = &hw::get_device("default");
#endif
LONG rv;
this->release();
rv = SCardEstablishContext(SCARD_SCOPE_SYSTEM,0,0, &this->hContext);
ASSERT_RV(rv);
MDEBUG( "Device "<<this->id <<" SCardContext created: hContext="<<this->hContext);
this->hCard = 0;
return true;
}
bool device_ledger::release() {
this->disconnect();
if (this->hContext) {
SCardReleaseContext(this->hContext);
MDEBUG( "Device "<<this->id <<" SCardContext released: hContext="<<this->hContext);
this->hContext = 0;
this->full_name.clear();
}
return true;
}
bool device_ledger::connect(void) {
BYTE pbAtr[MAX_ATR_SIZE];
LPSTR mszReaders;
DWORD dwReaders;
LONG rv;
DWORD dwState, dwProtocol, dwAtrLen, dwReaderLen;
this->disconnect();
#ifdef SCARD_AUTOALLOCATE
dwReaders = SCARD_AUTOALLOCATE;
rv = SCardListReaders(this->hContext, NULL, (LPSTR)&mszReaders, &dwReaders);
#else
dwReaders = 0;
rv = SCardListReaders(this->hContext, NULL, NULL, &dwReaders);
if (rv != SCARD_S_SUCCESS)
return false;
mszReaders = (LPSTR)calloc(dwReaders, sizeof(char));
rv = SCardListReaders(this->hContext, NULL, mszReaders, &dwReaders);
#endif
if (rv == SCARD_S_SUCCESS) {
char* p;
const char* prefix = this->name.c_str();
p = mszReaders;
MDEBUG( "Looking for " << std::string(prefix));
while (*p) {
MDEBUG( "Device Found: " << std::string(p));
if ((strncmp(prefix, p, strlen(prefix))==0)) {
MDEBUG( "Device Match: " << std::string(p));
if ((rv = SCardConnect(this->hContext,
p, SCARD_SHARE_EXCLUSIVE, SCARD_PROTOCOL_T0,
&this->hCard, &dwProtocol))!=SCARD_S_SUCCESS) {
break;
}
MDEBUG( "Device "<<this->id <<" Connected: hCard="<<this->hCard);
dwAtrLen = sizeof(pbAtr);
if ((rv = SCardStatus(this->hCard, NULL, &dwReaderLen, &dwState, &dwProtocol, pbAtr, &dwAtrLen))!=SCARD_S_SUCCESS) {
break;
}
MDEBUG( "Device "<<this->id <<" Status OK");
rv = SCARD_S_SUCCESS ;
this->full_name = std::string(p);
break;
}
p += strlen(p) +1;
}
}
if (mszReaders) {
#ifdef SCARD_AUTOALLOCATE
SCardFreeMemory(this->hContext, mszReaders);
#else
free(mszReaders);
#endif
mszReaders = NULL;
}
if (rv != SCARD_S_SUCCESS) {
if ( hCard) {
SCardDisconnect(this->hCard, SCARD_UNPOWER_CARD);
MDEBUG( "Device "<<this->id <<" disconnected: hCard="<<this->hCard);
this->hCard = 0;
}
}
ASSERT_RV(rv);
this->reset();
#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);
return rv==SCARD_S_SUCCESS;
}
bool device_ledger::disconnect() {
if (this->hCard) {
SCardDisconnect(this->hCard, SCARD_UNPOWER_CARD);
MDEBUG( "Device "<<this->id <<" disconnected: hCard="<<this->hCard);
this->hCard = 0;
}
return true;
}
bool device_ledger::set_mode(device_mode mode) {
AUTO_LOCK_CMD();
int offset;
reset_buffer();
switch(mode) {
case TRANSACTION_CREATE_REAL:
case TRANSACTION_CREATE_FAKE:
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_SET_SIGNATURE_MODE;
this->buffer_send[2] = 0x01;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
//account
this->buffer_send[offset] = mode;
offset += 1;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
this->mode = mode;
break;
case TRANSACTION_PARSE:
case NONE:
this->mode = mode;
break;
default:
CHECK_AND_ASSERT_THROW_MES(false, " device_ledger::set_mode(unsigned int mode): invalid mode: "<<mode);
}
MDEBUG("Switch to mode: " <<mode);
return true;
}
/* ======================================================================= */
/* WALLET & ADDRESS */
/* ======================================================================= */
bool device_ledger::get_public_address(cryptonote::account_public_address &pubkey){
AUTO_LOCK_CMD();
int offset;
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_GET_KEY;
this->buffer_send[2] = 0x01;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
memmove(pubkey.m_view_public_key.data, this->buffer_recv, 32);
memmove(pubkey.m_spend_public_key.data, this->buffer_recv+32, 32);
return true;
}
bool device_ledger::get_secret_keys(crypto::secret_key &vkey , crypto::secret_key &skey) {
AUTO_LOCK_CMD();
//secret key are represented as fake key on the wallet side
memset(vkey.data, 0x00, 32);
memset(skey.data, 0xFF, 32);
//spcialkey, normal conf handled in decrypt
int offset;
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_GET_KEY;
this->buffer_send[2] = 0x02;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//View key is retrievied, if allowed, to speed up blockchain parsing
memmove(this->viewkey.data, this->buffer_recv+0, 32);
if (is_fake_view_key(this->viewkey)) {
MDEBUG("Have Not view key");
this->has_view_key = false;
} else {
MDEBUG("Have view key");
this->has_view_key = true;
}
#ifdef DEBUG_HWDEVICE
memmove(dbg_viewkey.data, this->buffer_recv+0, 32);
memmove(dbg_spendkey.data, this->buffer_recv+32, 32);
#endif
return true;
}
bool device_ledger::generate_chacha_key(const cryptonote::account_keys &keys, crypto::chacha_key &key) {
AUTO_LOCK_CMD();
int offset;
#ifdef DEBUG_HWDEVICE
crypto::chacha_key key_x;
cryptonote::account_keys keys_x = hw::ledger::decrypt(keys);
this->controle_device->generate_chacha_key(keys_x, key_x);
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_GET_CHACHA8_PREKEY;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
char prekey[200];
memmove(prekey, &this->buffer_recv[0], 200);
crypto::generate_chacha_key_prehashed(&prekey[0], sizeof(prekey), key);
#ifdef DEBUG_HWDEVICE
hw::ledger::check32("generate_chacha_key_prehashed", "key", (char*)key_x.data(), (char*)key.data());
#endif
return true;
}
/* ======================================================================= */
/* SUB ADDRESS */
/* ======================================================================= */
bool device_ledger::derive_subaddress_public_key(const crypto::public_key &pub, const crypto::key_derivation &derivation, const std::size_t output_index, crypto::public_key &derived_pub){
AUTO_LOCK_CMD();
#ifdef DEBUG_HWDEVICE
const crypto::public_key pub_x = pub;
crypto::key_derivation derivation_x;
if ((this->mode == TRANSACTION_PARSE) && has_view_key) {
derivation_x = derivation;
} else {
derivation_x = hw::ledger::decrypt(derivation);
}
const std::size_t output_index_x = output_index;
crypto::public_key derived_pub_x;
hw::ledger::log_hexbuffer("derive_subaddress_public_key: [[IN]] pub ", pub_x.data, 32);
hw::ledger::log_hexbuffer("derive_subaddress_public_key: [[IN]] derivation", derivation_x.data, 32);
hw::ledger::log_message ("derive_subaddress_public_key: [[IN]] index ", std::to_string((int)output_index_x));
this->controle_device->derive_subaddress_public_key(pub_x, derivation_x,output_index_x,derived_pub_x);
hw::ledger::log_hexbuffer("derive_subaddress_public_key: [[OUT]] derived_pub", derived_pub_x.data, 32);
#endif
if ((this->mode == TRANSACTION_PARSE) && has_view_key) {
//If we are in TRANSACTION_PARSE, the given derivation has been retrieved uncrypted (wihtout the help
//of the device), so continue that way.
MDEBUG( "derive_subaddress_public_key : PARSE mode with known viewkey");
crypto::derive_subaddress_public_key(pub, derivation, output_index,derived_pub);
} else {
int offset =0;
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_DERIVE_SUBADDRESS_PUBLIC_KEY;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0;
offset += 1;
//pub
memmove(this->buffer_send+offset, pub.data, 32);
offset += 32;
//derivation
memmove(this->buffer_send+offset, derivation.data, 32);
offset += 32;
//index
this->buffer_send[offset+0] = output_index>>24;
this->buffer_send[offset+1] = output_index>>16;
this->buffer_send[offset+2] = output_index>>8;
this->buffer_send[offset+3] = output_index>>0;
offset += 4;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//pub key
memmove(derived_pub.data, &this->buffer_recv[0], 32);
}
#ifdef DEBUG_HWDEVICE
hw::ledger::check32("derive_subaddress_public_key", "derived_pub", derived_pub_x.data, derived_pub.data);
#endif
return true;
}
crypto::public_key device_ledger::get_subaddress_spend_public_key(const cryptonote::account_keys& keys, const cryptonote::subaddress_index &index) {
AUTO_LOCK_CMD();
crypto::public_key D;
int offset;
#ifdef DEBUG_HWDEVICE
const cryptonote::account_keys keys_x = hw::ledger::decrypt(keys);
const cryptonote::subaddress_index index_x = index;
crypto::public_key D_x;
hw::ledger::log_hexbuffer("get_subaddress_spend_public_key: [[IN]] keys.m_view_secret_key ", keys_x.m_view_secret_key.data,32);
hw::ledger::log_hexbuffer("get_subaddress_spend_public_key: [[IN]] keys.m_spend_secret_key", keys_x.m_spend_secret_key.data,32);
hw::ledger::log_message ("get_subaddress_spend_public_key: [[IN]] index ", std::to_string(index_x.major)+"."+std::to_string(index_x.minor));
D_x = this->controle_device->get_subaddress_spend_public_key(keys_x, index_x);
hw::ledger::log_hexbuffer("get_subaddress_spend_public_key: [[OUT]] derivation ", D_x.data, 32);
#endif
if (index.is_zero()) {
D = keys.m_account_address.m_spend_public_key;
} else {
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_GET_SUBADDRESS_SPEND_PUBLIC_KEY;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
//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));
offset +=8 ;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
memmove(D.data, &this->buffer_recv[0], 32);
}
#ifdef DEBUG_HWDEVICE
hw::ledger::check32("get_subaddress_spend_public_key", "D", D_x.data, D.data);
#endif
return D;
}
std::vector<crypto::public_key> device_ledger::get_subaddress_spend_public_keys(const cryptonote::account_keys &keys, uint32_t account, uint32_t begin, uint32_t end) {
std::vector<crypto::public_key> pkeys;
cryptonote::subaddress_index index = {account, begin};
crypto::public_key D;
for (uint32_t idx = begin; idx < end; ++idx) {
index.minor = idx;
D = this->get_subaddress_spend_public_key(keys, index);
pkeys.push_back(D);
}
return pkeys;
}
cryptonote::account_public_address device_ledger::get_subaddress(const cryptonote::account_keys& keys, const cryptonote::subaddress_index &index) {
AUTO_LOCK_CMD();
cryptonote::account_public_address address;
int offset;
#ifdef DEBUG_HWDEVICE
const cryptonote::account_keys keys_x = hw::ledger::decrypt(keys);
const cryptonote::subaddress_index index_x = index;
cryptonote::account_public_address address_x;
hw::ledger::log_hexbuffer("get_subaddress: [[IN]] keys.m_view_secret_key ", keys_x.m_view_secret_key.data, 32);
hw::ledger::log_hexbuffer("get_subaddress: [[IN]] keys.m_view_public_key", keys_x.m_account_address.m_view_public_key.data, 32);
hw::ledger::log_hexbuffer("get_subaddress: [[IN]] keys.m_view_secret_key ", keys_x.m_view_secret_key.data, 32);
hw::ledger::log_hexbuffer("get_subaddress: [[IN]] keys.m_spend_public_key", keys_x.m_account_address.m_spend_public_key.data, 32);
hw::ledger::log_message ("get_subaddress: [[IN]] index ", std::to_string(index_x.major)+"."+std::to_string(index_x.minor));
address_x = this->controle_device->get_subaddress(keys_x, index_x);
hw::ledger::log_hexbuffer("get_subaddress: [[OUT]] keys.m_view_public_key ", address_x.m_view_public_key.data, 32);
hw::ledger::log_hexbuffer("get_subaddress: [[OUT]] keys.m_spend_public_key", address_x.m_spend_public_key.data, 32);
#endif
if (index.is_zero()) {
address = keys.m_account_address;
} else {
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_GET_SUBADDRESS;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
//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));
offset +=8 ;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
memmove(address.m_view_public_key.data, &this->buffer_recv[0], 32);
memmove(address.m_spend_public_key.data, &this->buffer_recv[32], 32);
}
#ifdef DEBUG_HWDEVICE
hw::ledger::check32("get_subaddress", "address.m_view_public_key.data", address_x.m_view_public_key.data, address.m_view_public_key.data);
hw::ledger::check32("get_subaddress", "address.m_spend_public_key.data", address_x.m_spend_public_key.data, address.m_spend_public_key.data);
#endif
return address;
}
crypto::secret_key device_ledger::get_subaddress_secret_key(const crypto::secret_key &sec, const cryptonote::subaddress_index &index) {
AUTO_LOCK_CMD();
crypto::secret_key sub_sec;
int offset;
#ifdef DEBUG_HWDEVICE
const crypto::secret_key sec_x = hw::ledger::decrypt(sec);
const cryptonote::subaddress_index index_x = index;
crypto::secret_key sub_sec_x;
hw::ledger::log_message ("get_subaddress_secret_key: [[IN]] index ", std::to_string(index.major)+"."+std::to_string(index.minor));
hw::ledger::log_hexbuffer("get_subaddress_secret_key: [[IN]] sec ", sec_x.data, 32);
sub_sec_x = this->controle_device->get_subaddress_secret_key(sec_x, index_x);
hw::ledger::log_hexbuffer("get_subaddress_secret_key: [[OUT]] sub_sec", sub_sec_x.data, 32);
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_GET_SUBADDRESS_SECRET_KEY;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0;
offset += 1;
//sec
memmove(this->buffer_send+offset, sec.data, 32);
offset += 32;
//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));
offset +=8 ;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
memmove(sub_sec.data, &this->buffer_recv[0], 32);
#ifdef DEBUG_HWDEVICE
crypto::secret_key sub_sec_clear = hw::ledger::decrypt(sub_sec);
hw::ledger::check32("get_subaddress_secret_key", "sub_sec", sub_sec_x.data, sub_sec_clear.data);
#endif
return sub_sec;
}
/* ======================================================================= */
/* DERIVATION & KEY */
/* ======================================================================= */
bool device_ledger::verify_keys(const crypto::secret_key &secret_key, const crypto::public_key &public_key) {
AUTO_LOCK_CMD();
int offset, sw;
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_VERIFY_KEY;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
//sec
memmove(this->buffer_send+offset, secret_key.data, 32);
offset += 32;
//pub
memmove(this->buffer_send+offset, public_key.data, 32);
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
uint32_t verified =
this->buffer_recv[0] << 24 |
this->buffer_recv[1] << 16 |
this->buffer_recv[2] << 8 |
this->buffer_recv[3] << 0 ;
return verified == 1;
}
bool device_ledger::scalarmultKey(rct::key & aP, const rct::key &P, const rct::key &a) {
AUTO_LOCK_CMD();
int offset;
#ifdef DEBUG_HWDEVICE
const rct::key P_x = P;
const rct::key a_x = hw::ledger::decrypt(a);
rct::key aP_x;
hw::ledger::log_hexbuffer("scalarmultKey: [[IN]] P ", (char*)P_x.bytes, 32);
hw::ledger::log_hexbuffer("scalarmultKey: [[IN]] a ", (char*)a_x.bytes, 32);
this->controle_device->scalarmultKey(aP_x, P_x, a_x);
hw::ledger::log_hexbuffer("scalarmultKey: [[OUT]] aP", (char*)aP_x.bytes, 32);
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_SECRET_SCAL_MUL_KEY;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0;
offset += 1;
//pub
memmove(this->buffer_send+offset, P.bytes, 32);
offset += 32;
//sec
memmove(this->buffer_send+offset, a.bytes, 32);
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//pub key
memmove(aP.bytes, &this->buffer_recv[0], 32);
#ifdef DEBUG_HWDEVICE
hw::ledger::check32("scalarmultKey", "mulkey", (char*)aP_x.bytes, (char*)aP.bytes);
#endif
return true;
}
bool device_ledger::scalarmultBase(rct::key &aG, const rct::key &a) {
AUTO_LOCK_CMD();
int offset;
#ifdef DEBUG_HWDEVICE
const rct::key a_x = hw::ledger::decrypt(a);
rct::key aG_x;
hw::ledger::log_hexbuffer("scalarmultKey: [[IN]] a ", (char*)a_x.bytes, 32);
this->controle_device->scalarmultBase(aG_x, a_x);
hw::ledger::log_hexbuffer("scalarmultKey: [[OUT]] aG", (char*)aG_x.bytes, 32);
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_SECRET_SCAL_MUL_BASE;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0;
offset += 1;
//sec
memmove(this->buffer_send+offset, a.bytes, 32);
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//pub key
memmove(aG.bytes, &this->buffer_recv[0], 32);
#ifdef DEBUG_HWDEVICE
hw::ledger::check32("scalarmultBase", "mulkey", (char*)aG_x.bytes, (char*)aG.bytes);
#endif
return true;
}
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);
const crypto::secret_key b_x = hw::ledger::decrypt(b);
crypto::secret_key r_x;
this->controle_device->sc_secret_add(r_x, a_x, b_x);
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_SECRET_KEY_ADD;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0;
offset += 1;
//sec key
memmove(this->buffer_send+offset, a.data, 32);
offset += 32;
//sec key
memmove(this->buffer_send+offset, b.data, 32);
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//pub key
memmove(r.data, &this->buffer_recv[0], 32);
#ifdef DEBUG_HWDEVICE
crypto::secret_key r_clear = hw::ledger::decrypt(r);
hw::ledger::check32("sc_secret_add", "r", r_x.data, r_clear.data);
#endif
return true;
}
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();
if (recover) {
throw std::runtime_error("device generate key does not support recover");
}
int offset;
#ifdef DEBUG_HWDEVICE
bool recover_x = recover;
const crypto::secret_key recovery_key_x = recovery_key;
crypto::public_key pub_x;
crypto::secret_key sec_x;
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_GENERATE_KEYPAIR;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0;
offset += 1;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//pub key
memmove(pub.data, &this->buffer_recv[0], 32);
memmove(sec.data, &this->buffer_recv[32], 32);
#ifdef DEBUG_HWDEVICE
crypto::secret_key sec_clear = hw::ledger::decrypt(sec);
sec_x = sec_clear;
crypto::secret_key_to_public_key(sec_x,pub_x);
hw::ledger::check32("generate_keys", "pub", pub_x.data, pub.data);
#endif
return sec;
}
bool device_ledger::generate_key_derivation(const crypto::public_key &pub, const crypto::secret_key &sec, crypto::key_derivation &derivation) {
AUTO_LOCK_CMD();
bool r = false;
#ifdef DEBUG_HWDEVICE
const crypto::public_key pub_x = pub;
const crypto::secret_key sec_x = hw::ledger::decrypt(sec);
crypto::key_derivation derivation_x;
hw::ledger::log_hexbuffer("generate_key_derivation: [[IN]] pub ", pub_x.data, 32);
hw::ledger::log_hexbuffer("generate_key_derivation: [[IN]] sec ", sec_x.data, 32);
this->controle_device->generate_key_derivation(pub_x, sec_x, derivation_x);
hw::ledger::log_hexbuffer("generate_key_derivation: [[OUT]] derivation", derivation_x.data, 32);
#endif
if ((this->mode == TRANSACTION_PARSE) && has_view_key) {
//A derivation is resquested in PASRE mode and we have the view key,
//so do that wihtout the device and return the derivation unencrypted.
MDEBUG( "generate_key_derivation : PARSE mode with known viewkey");
//Note derivation in PARSE mode can only happen with viewkey, so assert it!
assert(is_fake_view_key(sec));
r = crypto::generate_key_derivation(pub, this->viewkey, derivation);
} else {
int offset;
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_GEN_KEY_DERIVATION;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0;
offset += 1;
//pub
memmove(this->buffer_send+offset, pub.data, 32);
offset += 32;
//sec
memmove(this->buffer_send+offset, sec.data, 32);
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//derivattion data
memmove(derivation.data, &this->buffer_recv[0], 32);
r = true;
}
#ifdef DEBUG_HWDEVICE
crypto::key_derivation derivation_clear ;
if ((this->mode == TRANSACTION_PARSE) && has_view_key) {
derivation_clear = derivation;
}else {
derivation_clear = hw::ledger::decrypt(derivation);
}
hw::ledger::check32("generate_key_derivation", "derivation", derivation_x.data, derivation_clear.data);
#endif
return r;
}
bool device_ledger::conceal_derivation(crypto::key_derivation &derivation, const crypto::public_key &tx_pub_key, const std::vector<crypto::public_key> &additional_tx_pub_keys, const crypto::key_derivation &main_derivation, const std::vector<crypto::key_derivation> &additional_derivations) {
const crypto::public_key *pkey=NULL;
if (derivation == main_derivation) {
pkey = &tx_pub_key;
MDEBUG("conceal derivation with main tx pub key");
} else {
for(size_t n=0; n < additional_derivations.size();++n) {
if(derivation == additional_derivations[n]) {
pkey = &additional_tx_pub_keys[n];
MDEBUG("conceal derivation with additionnal tx pub key");
break;
}
}
}
ASSERT_X(pkey, "Mismatched derivation on scan info");
return this->generate_key_derivation(*pkey, crypto::null_skey, derivation);
}
bool device_ledger::derivation_to_scalar(const crypto::key_derivation &derivation, const size_t output_index, crypto::ec_scalar &res) {
AUTO_LOCK_CMD();
int offset;
#ifdef DEBUG_HWDEVICE
const crypto::key_derivation derivation_x = hw::ledger::decrypt(derivation);
const size_t output_index_x = output_index;
crypto::ec_scalar res_x;
hw::ledger::log_hexbuffer("derivation_to_scalar: [[IN]] derivation ", derivation_x.data, 32);
hw::ledger::log_message ("derivation_to_scalar: [[IN]] output_index ", std::to_string(output_index_x));
this->controle_device->derivation_to_scalar(derivation_x, output_index_x, res_x);
hw::ledger::log_hexbuffer("derivation_to_scalar: [[OUT]] res ", res_x.data, 32);
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_DERIVATION_TO_SCALAR;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0;
offset += 1;
//derivattion
memmove(this->buffer_send+offset, derivation.data, 32);
offset += 32;
//index
this->buffer_send[offset+0] = output_index>>24;
this->buffer_send[offset+1] = output_index>>16;
this->buffer_send[offset+2] = output_index>>8;
this->buffer_send[offset+3] = output_index>>0;
offset += 4;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//derivattion data
memmove(res.data, &this->buffer_recv[0], 32);
#ifdef DEBUG_HWDEVICE
crypto::ec_scalar res_clear = hw::ledger::decrypt(res);
hw::ledger::check32("derivation_to_scalar", "res", res_x.data, res_clear.data);
#endif
return true;
}
bool device_ledger::derive_secret_key(const crypto::key_derivation &derivation, const std::size_t output_index, const crypto::secret_key &sec, crypto::secret_key &derived_sec) {
AUTO_LOCK_CMD();
int offset;
#ifdef DEBUG_HWDEVICE
const crypto::key_derivation derivation_x = hw::ledger::decrypt(derivation);
const std::size_t output_index_x = output_index;
const crypto::secret_key sec_x = hw::ledger::decrypt(sec);
crypto::secret_key derived_sec_x;
hw::ledger::log_hexbuffer("derive_secret_key: [[IN]] derivation ", derivation_x.data, 32);
hw::ledger::log_message ("derive_secret_key: [[IN]] index ", std::to_string(output_index_x));
hw::ledger::log_hexbuffer("derive_secret_key: [[IN]] sec ", sec_x.data, 32);
this->controle_device->derive_secret_key(derivation_x, output_index_x, sec_x, derived_sec_x);
hw::ledger::log_hexbuffer("derive_secret_key: [[OUT]] derived_sec", derived_sec_x.data, 32);
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_DERIVE_SECRET_KEY;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0;
offset += 1;
//derivation
memmove(this->buffer_send+offset, derivation.data, 32);
offset += 32;
//index
this->buffer_send[offset+0] = output_index>>24;
this->buffer_send[offset+1] = output_index>>16;
this->buffer_send[offset+2] = output_index>>8;
this->buffer_send[offset+3] = output_index>>0;
offset += 4;
//sec
memmove(this->buffer_send+offset, sec.data, 32);
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//pub key
memmove(derived_sec.data, &this->buffer_recv[0], 32);
#ifdef DEBUG_HWDEVICE
crypto::secret_key derived_sec_clear = hw::ledger::decrypt(derived_sec);
hw::ledger::check32("derive_secret_key", "derived_sec", derived_sec_x.data, derived_sec_clear.data);
#endif
return true;
}
bool device_ledger::derive_public_key(const crypto::key_derivation &derivation, const std::size_t output_index, const crypto::public_key &pub, crypto::public_key &derived_pub){
AUTO_LOCK_CMD();
int offset;
#ifdef DEBUG_HWDEVICE
const crypto::key_derivation derivation_x = hw::ledger::decrypt(derivation);
const std::size_t output_index_x = output_index;
const crypto::public_key pub_x = pub;
crypto::public_key derived_pub_x;
hw::ledger::log_hexbuffer("derive_public_key: [[IN]] derivation ", derivation_x.data, 32);
hw::ledger::log_message ("derive_public_key: [[IN]] output_index", std::to_string(output_index_x));
hw::ledger::log_hexbuffer("derive_public_key: [[IN]] pub ", pub_x.data, 32);
this->controle_device->derive_public_key(derivation_x, output_index_x, pub_x, derived_pub_x);
hw::ledger::log_hexbuffer("derive_public_key: [[OUT]] derived_pub ", derived_pub_x.data, 32);
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_DERIVE_PUBLIC_KEY;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0;
offset += 1;
//derivation
memmove(this->buffer_send+offset, derivation.data, 32);
offset += 32;
//index
this->buffer_send[offset+0] = output_index>>24;
this->buffer_send[offset+1] = output_index>>16;
this->buffer_send[offset+2] = output_index>>8;
this->buffer_send[offset+3] = output_index>>0;
offset += 4;
//pub
memmove(this->buffer_send+offset, pub.data, 32);
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//pub key
memmove(derived_pub.data, &this->buffer_recv[0], 32);
#ifdef DEBUG_HWDEVICE
hw::ledger::check32("derive_public_key", "derived_pub", derived_pub_x.data, derived_pub.data);
#endif
return true;
}
bool device_ledger::secret_key_to_public_key(const crypto::secret_key &sec, crypto::public_key &pub) {
AUTO_LOCK_CMD();
int offset;
#ifdef DEBUG_HWDEVICE
const crypto::secret_key sec_x = hw::ledger::decrypt(sec);
crypto::public_key pub_x;
hw::ledger::log_hexbuffer("secret_key_to_public_key: [[IN]] sec ", sec_x.data, 32);
bool rc = this->controle_device->secret_key_to_public_key(sec_x, pub_x);
hw::ledger::log_hexbuffer("secret_key_to_public_key: [[OUT]] pub", pub_x.data, 32);
if (!rc){
hw::ledger::log_message("secret_key_to_public_key", "secret_key rejected");
}
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_SECRET_KEY_TO_PUBLIC_KEY;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0;
offset += 1;
//sec key
memmove(this->buffer_send+offset, sec.data, 32);
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//pub key
memmove(pub.data, &this->buffer_recv[0], 32);
#ifdef DEBUG_HWDEVICE
hw::ledger::check32("secret_key_to_public_key", "pub", pub_x.data, pub.data);
#endif
return true;
}
bool device_ledger::generate_key_image(const crypto::public_key &pub, const crypto::secret_key &sec, crypto::key_image &image){
AUTO_LOCK_CMD();
int offset;
#ifdef DEBUG_HWDEVICE
const crypto::public_key pub_x = pub;
const crypto::secret_key sec_x = hw::ledger::decrypt(sec);
crypto::key_image image_x;
hw::ledger::log_hexbuffer("generate_key_image: [[IN]] pub ", pub_x.data, 32);
hw::ledger::log_hexbuffer("generate_key_image: [[IN]] sec ", sec_x.data, 32);
this->controle_device->generate_key_image(pub_x, sec_x, image_x);
hw::ledger::log_hexbuffer("generate_key_image: [[OUT]] image ", image_x.data, 32);
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_GEN_KEY_IMAGE;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0;
offset += 1;
//pub
memmove(this->buffer_send+offset, pub.data, 32);
offset += 32;
//sec
memmove(this->buffer_send+offset, sec.data, 32);
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//pub key
memmove(image.data, &this->buffer_recv[0], 32);
#ifdef DEBUG_HWDEVICE
hw::ledger::check32("generate_key_image", "image", image_x.data, image.data);
#endif
return true;
}
/* ======================================================================= */
/* TRANSACTION */
/* ======================================================================= */
bool device_ledger::open_tx(crypto::secret_key &tx_key) {
AUTO_LOCK_CMD();
int offset;
reset_buffer();
key_map.clear();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_OPEN_TX;
this->buffer_send[2] = 0x01;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
//account
this->buffer_send[offset+0] = 0x00;
this->buffer_send[offset+1] = 0x00;
this->buffer_send[offset+2] = 0x00;
this->buffer_send[offset+3] = 0x00;
offset += 4;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
memmove(tx_key.data, &this->buffer_recv[32], 32);
return true;
}
bool device_ledger::encrypt_payment_id(crypto::hash8 &payment_id, const crypto::public_key &public_key, const crypto::secret_key &secret_key) {
AUTO_LOCK_CMD();
int offset;
#ifdef DEBUG_HWDEVICE
const crypto::public_key public_key_x = public_key;
const crypto::secret_key secret_key_x = hw::ledger::decrypt(secret_key);
crypto::hash8 payment_id_x = payment_id;
this->controle_device->encrypt_payment_id(payment_id_x, public_key_x, secret_key_x);
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_STEALTH;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
//pub
memmove(&this->buffer_send[offset], public_key.data, 32);
offset += 32;
//sec
memmove(&this->buffer_send[offset], secret_key.data, 32);
offset += 32;
//id
memmove(&this->buffer_send[offset], payment_id.data, 8);
offset += 8;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
memmove(payment_id.data, &this->buffer_recv[0], 8);
#ifdef DEBUG_HWDEVICE
hw::ledger::check8("stealth", "payment_id", payment_id_x.data, payment_id.data);
#endif
return true;
}
bool device_ledger::add_output_key_mapping(const crypto::public_key &Aout, const crypto::public_key &Bout, const bool is_subaddress, const size_t real_output_index,
const rct::key &amount_key, const crypto::public_key &out_eph_public_key) {
AUTO_LOCK_CMD();
key_map.add(ABPkeys(rct::pk2rct(Aout),rct::pk2rct(Bout), is_subaddress, real_output_index, rct::pk2rct(out_eph_public_key), amount_key));
return true;
}
bool device_ledger::ecdhEncode(rct::ecdhTuple & unmasked, const rct::key & AKout) {
AUTO_LOCK_CMD();
int offset;
#ifdef DEBUG_HWDEVICE
const rct::key AKout_x = hw::ledger::decrypt(AKout);
rct::ecdhTuple unmasked_x = unmasked;
this->controle_device->ecdhEncode(unmasked_x, AKout_x);
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_BLIND;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
// AKout
memmove(this->buffer_send+offset, AKout.bytes, 32);
offset += 32;
//mask k
memmove(this->buffer_send+offset, unmasked.mask.bytes, 32);
offset += 32;
//value v
memmove(this->buffer_send+offset, unmasked.amount.bytes, 32);
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
memmove(unmasked.amount.bytes, &this->buffer_recv[0], 32);
memmove(unmasked.mask.bytes, &this->buffer_recv[32], 32);
#ifdef DEBUG_HWDEVICE
hw::ledger::check32("ecdhEncode", "amount", (char*)unmasked_x.amount.bytes, (char*)unmasked.amount.bytes);
hw::ledger::check32("ecdhEncode", "mask", (char*)unmasked_x.mask.bytes, (char*)unmasked.mask.bytes);
hw::ledger::log_hexbuffer("Blind AKV input", (char*)&this->buffer_recv[64], 3*32);
#endif
return true;
}
bool device_ledger::ecdhDecode(rct::ecdhTuple & masked, const rct::key & AKout) {
AUTO_LOCK_CMD();
int offset;
#ifdef DEBUG_HWDEVICE
const rct::key AKout_x = hw::ledger::decrypt(AKout);
rct::ecdhTuple masked_x = masked;
this->controle_device->ecdhDecode(masked_x, AKout_x);
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_UNBLIND;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
// AKout
memmove(this->buffer_send+offset, AKout.bytes, 32);
offset += 32;
//mask k
memmove(this->buffer_send+offset, masked.mask.bytes, 32);
offset += 32;
//value v
memmove(this->buffer_send+offset, masked.amount.bytes, 32);
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
memmove(masked.amount.bytes, &this->buffer_recv[0], 32);
memmove(masked.mask.bytes, &this->buffer_recv[32], 32);
#ifdef DEBUG_HWDEVICE
hw::ledger::check32("ecdhDecode", "amount", (char*)masked_x.amount.bytes, (char*)masked.amount.bytes);
hw::ledger::check32("ecdhDecode", "mask", (char*)masked_x.mask.bytes,(char*) masked.mask.bytes);
#endif
return true;
}
bool device_ledger::mlsag_prehash(const std::string &blob, size_t inputs_size, size_t outputs_size,
const rct::keyV &hashes, const rct::ctkeyV &outPk,
rct::key &prehash) {
AUTO_LOCK_CMD();
unsigned int data_offset, C_offset, kv_offset, i;
const char *data;
#ifdef DEBUG_HWDEVICE
const std::string blob_x = blob;
size_t inputs_size_x = inputs_size;
size_t outputs_size_x = outputs_size;
const rct::keyV hashes_x = hashes;
const rct::ctkeyV outPk_x = outPk;
rct::key prehash_x;
this->controle_device->mlsag_prehash(blob_x, inputs_size_x, outputs_size_x, hashes_x, outPk_x, prehash_x);
if (inputs_size) {
log_message("mlsag_prehash", (std::string("inputs_size not null: ") + std::to_string(inputs_size)).c_str());
}
this->key_map.log();
#endif
data = blob.data();
// ====== u8 type, varint txnfee ======
int offset;
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_VALIDATE;
this->buffer_send[2] = 0x01;
this->buffer_send[3] = 0x01;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = (inputs_size == 0)?0x00:0x80;
offset += 1;
//type
uint8_t type = data[0];
this->buffer_send[offset] = data[0];
offset += 1;
//txnfee
data_offset = 1;
while (data[data_offset]&0x80) {
this->buffer_send[offset] = data[data_offset];
offset += 1;
data_offset += 1;
}
this->buffer_send[offset] = data[data_offset];
offset += 1;
data_offset += 1;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//pseudoOuts
if ((type == rct::RCTTypeSimple) || (type == rct::RCTTypeSimpleBulletproof)) {
for ( i = 0; i < inputs_size; i++) {
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_VALIDATE;
this->buffer_send[2] = 0x01;
this->buffer_send[3] = i+2;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = (i==inputs_size-1)? 0x00:0x80;
offset += 1;
//pseudoOut
memmove(this->buffer_send+offset, data+data_offset,32);
offset += 32;
data_offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
}
}
// ====== Aout, Bout, AKout, C, v, k ======
kv_offset = data_offset;
C_offset = kv_offset+ (32*2)*outputs_size;
for ( i = 0; i < outputs_size; i++) {
ABPkeys outKeys;
bool found;
found = this->key_map.find(outPk[i].dest, outKeys);
if (!found) {
log_hexbuffer("Pout not found", (char*)outPk[i].dest.bytes, 32);
CHECK_AND_ASSERT_THROW_MES(found, "Pout not found");
}
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_VALIDATE;
this->buffer_send[2] = 0x02;
this->buffer_send[3] = i+1;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = (i==outputs_size-1)? 0x00:0x80 ;
offset += 1;
if (found) {
//is_subaddress
this->buffer_send[offset] = outKeys.is_subaddress;
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 += 1+32*3;
}
//C
memmove(this->buffer_send+offset, data+C_offset,32);
offset += 32;
C_offset += 32;
//k
memmove(this->buffer_send+offset, data+kv_offset,32);
offset += 32;
//v
kv_offset += 32;
memmove(this->buffer_send+offset, data+kv_offset,32);
offset += 32;
kv_offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
#ifdef DEBUG_HWDEVICE
hw::ledger::log_hexbuffer("Prehash AKV input", (char*)&this->buffer_recv[64], 3*32);
#endif
}
// ====== C[], message, proof======
C_offset = kv_offset;
for (i = 0; i < outputs_size; i++) {
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_VALIDATE;
this->buffer_send[2] = 0x03;
this->buffer_send[3] = i+1;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x80 ;
offset += 1;
//C
memmove(this->buffer_send+offset, data+C_offset,32);
offset += 32;
C_offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
}
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_VALIDATE;
this->buffer_send[2] = 0x03;
this->buffer_send[3] = i+1;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
//message
memmove(this->buffer_send+offset, hashes[0].bytes,32);
offset += 32;
//proof
memmove(this->buffer_send+offset, hashes[2].bytes,32);
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
memmove(prehash.bytes, this->buffer_recv, 32);
#ifdef DEBUG_HWDEVICE
hw::ledger::check32("mlsag_prehash", "prehash", (char*)prehash_x.bytes, (char*)prehash.bytes);
#endif
return true;
}
bool device_ledger::mlsag_prepare(const rct::key &H, const rct::key &xx,
rct::key &a, rct::key &aG, rct::key &aHP, rct::key &II) {
AUTO_LOCK_CMD();
int offset;
unsigned char options;
#ifdef DEBUG_HWDEVICE
const rct::key H_x = H;
const rct::key xx_x = hw::ledger::decrypt(xx);
rct::key a_x;
rct::key aG_x;
rct::key aHP_x;
rct::key II_x;
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_MLSAG;
this->buffer_send[2] = 0x01;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
//value H
memmove(this->buffer_send+offset, H.bytes, 32);
offset += 32;
//mask xin
memmove(this->buffer_send+offset, xx.bytes, 32);
offset += 32;
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);
#ifdef DEBUG_HWDEVICE
a_x = hw::ledger::decrypt(a);
rct::scalarmultBase(aG_x, a_x);
rct::scalarmultKey(aHP_x, H_x, a_x);
rct::scalarmultKey(II_x, H_x, xx_x);
hw::ledger::check32("mlsag_prepare", "AG", (char*)aG_x.bytes, (char*)aG.bytes);
hw::ledger::check32("mlsag_prepare", "aHP", (char*)aHP_x.bytes, (char*)aHP.bytes);
hw::ledger::check32("mlsag_prepare", "II", (char*)II_x.bytes, (char*)II.bytes);
#endif
return true;
}
bool device_ledger::mlsag_prepare(rct::key &a, rct::key &aG) {
AUTO_LOCK_CMD();
int offset;
unsigned char options;
#ifdef DEBUG_HWDEVICE
rct::key a_x;
rct::key aG_x;
#endif
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_MLSAG;
this->buffer_send[2] = 0x01;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
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);
#ifdef DEBUG_HWDEVICE
a_x = hw::ledger::decrypt(a);
rct::scalarmultBase(aG_x, a_x);
hw::ledger::check32("mlsag_prepare", "AG", (char*)aG_x.bytes, (char*)aG.bytes);
#endif
return true;
}
bool device_ledger::mlsag_hash(const rct::keyV &long_message, rct::key &c) {
AUTO_LOCK_CMD();
int offset;
unsigned char options;
size_t cnt;
#ifdef DEBUG_HWDEVICE
const rct::keyV long_message_x = long_message;
rct::key c_x;
this->controle_device->mlsag_hash(long_message_x, c_x);
#endif
cnt = long_message.size();
for (size_t i = 0; i<cnt; i++) {
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_MLSAG;
this->buffer_send[2] = 0x02;
this->buffer_send[3] = i+1;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] =
(i==(cnt-1))?0x00:0x80; //last
offset += 1;
//msg part
memmove(this->buffer_send+offset, long_message[i].bytes, 32);
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
}
memmove(c.bytes, &this->buffer_recv[0], 32);
#ifdef DEBUG_HWDEVICE
hw::ledger::check32("mlsag_hash", "c", (char*)c_x.bytes, (char*)c.bytes);
#endif
return true;
}
bool device_ledger::mlsag_sign(const rct::key &c, const rct::keyV &xx, const rct::keyV &alpha, const size_t rows, const size_t dsRows, rct::keyV &ss) {
AUTO_LOCK_CMD();
int offset;
CHECK_AND_ASSERT_THROW_MES(dsRows<=rows, "dsRows greater than rows");
CHECK_AND_ASSERT_THROW_MES(xx.size() == rows, "xx size does not match rows");
CHECK_AND_ASSERT_THROW_MES(alpha.size() == rows, "alpha size does not match rows");
CHECK_AND_ASSERT_THROW_MES(ss.size() == rows, "ss size does not match rows");
#ifdef DEBUG_HWDEVICE
const rct::key c_x = c;
const rct::keyV xx_x = hw::ledger::decrypt(xx);
const rct::keyV alpha_x = hw::ledger::decrypt(alpha);
const int rows_x = rows;
const int dsRows_x = dsRows;
rct::keyV ss_x(ss.size());
this->controle_device->mlsag_sign(c_x, xx_x, alpha_x, rows_x, dsRows_x, ss_x);
#endif
for (size_t j = 0; j < dsRows; j++) {
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_MLSAG;
this->buffer_send[2] = 0x03;
this->buffer_send[3] = j+1;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
if (j==(dsRows-1)) {
this->buffer_send[offset] |= 0x80; //last
}
offset += 1;
//xx
memmove(this->buffer_send+offset, xx[j].bytes, 32);
offset += 32;
//alpa
memmove(this->buffer_send+offset, alpha[j].bytes, 32);
offset += 32;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
//ss
memmove(ss[j].bytes, &this->buffer_recv[0], 32);
}
for (size_t j = dsRows; j < rows; j++) {
sc_mulsub(ss[j].bytes, c.bytes, xx[j].bytes, alpha[j].bytes);
}
#ifdef DEBUG_HWDEVICE
for (size_t j = 0; j < rows; j++) {
hw::ledger::check32("mlsag_sign", "ss["+std::to_string(j)+"]", (char*)ss_x[j].bytes, (char*)ss[j].bytes);
}
#endif
return true;
}
bool device_ledger::close_tx() {
AUTO_LOCK_CMD();
int offset;
reset_buffer();
this->buffer_send[0] = 0x00;
this->buffer_send[1] = INS_CLOSE_TX;
this->buffer_send[2] = 0x00;
this->buffer_send[3] = 0x00;
this->buffer_send[4] = 0x00;
offset = 5;
//options
this->buffer_send[offset] = 0x00;
offset += 1;
this->buffer_send[4] = offset-5;
this->length_send = offset;
this->exchange();
return true;
}
/* ---------------------------------------------------------- */
static device_ledger *legder_device = NULL;
void register_all(std::map<std::string, std::unique_ptr<device>> &registry) {
if (!legder_device) {
legder_device = new device_ledger();
legder_device->set_name("Ledger");
}
registry.insert(std::make_pair("Ledger", std::unique_ptr<device>(legder_device)));
}
#else //WITH_DEVICE_LEDGER
void register_all(std::map<std::string, std::unique_ptr<device>> &registry) {
}
#endif //WITH_DEVICE_LEDGER
}
}
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