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Diffstat (limited to '')
| -rw-r--r-- | src/device/device_ledger.cpp | 2069 |
1 files changed, 2069 insertions, 0 deletions
diff --git a/src/device/device_ledger.cpp b/src/device/device_ledger.cpp new file mode 100644 index 000000000..e8eb7cc8b --- /dev/null +++ b/src/device/device_ledger.cpp @@ -0,0 +1,2069 @@ +// 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" + + + +namespace hw { + + namespace ledger { + + #ifdef WITH_DEVICE_LEDGER + + #undef MONERO_DEFAULT_LOG_CATEGORY + #define MONERO_DEFAULT_LOG_CATEGORY "device.ledger" + + /* ===================================================================== */ + /* === Debug ==== */ + /* ===================================================================== */ + 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 ) ; + + #ifdef DEBUG_HWDEVICE + #define DEVICE_CONTROLE :controle_device(hw::get_device("default")) + crypto::secret_key viewkey; + crypto::secret_key spendkey; + #else + #define DEVICE_CONTROLE + #endif + + /* ===================================================================== */ + /* === Keymap ==== */ + /* ===================================================================== */ + + ABPkeys::ABPkeys(const rct::key& A, const rct::key& B, size_t real_output_index, const rct::key& P, const rct::key& AK) { + Aout = A; + Bout = B; + index = real_output_index; + Pout = P; + AKout = AK; + } + + ABPkeys::ABPkeys(const ABPkeys& keys) { + Aout = keys.Aout; + Bout = keys.Bout; + 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 (" index", std::to_string(ABP[i].index)); + log_hexbuffer(" Pout", (char*)ABP[i].Pout.bytes, 32); + } + } + #endif + + /* ===================================================================== */ + /* === 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() DEVICE_CONTROLE { + this->id = device_id++; + this->hCard = 0; + this->hContext = 0; + this->reset_buffer(); + MDEBUG( "Device "<<this->id <<" Created"); + } + + device_ledger::~device_ledger() { + this->release(); + MDEBUG( "Device "<<this->id <<" Destroyed"); + } + + + /* ======================================================================= */ + /* MISC */ + /* ======================================================================= */ + bool device_ledger::reset() { + + lock_device(); + try { + 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(); + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + 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); + } + + void device_ledger::lock_device() { + MDEBUG( "Ask for LOCKING for device "<<this->id); + device_locker.lock(); + MDEBUG( "Device "<<this->id << " LOCKed"); + } + void device_ledger::unlock_device() { + try { + MDEBUG( "Ask for UNLOCKING for device "<<this->id); + } catch (...) { + } + device_locker.unlock(); + MDEBUG( "Device "<<this->id << " UNLOCKed"); + } + void device_ledger::lock_tx() { + MDEBUG( "Ask for LOCKING for TX "<<this->id); + //tx_locker.lock(); + MDEBUG( "TX "<<this->id << " LOCKed"); + } + void device_ledger::unlock_tx() { + MDEBUG( "Ask for UNLOCKING for TX "<<this->id); + //tx_locker.unlock(); + MDEBUG( "TX "<<this->id << " UNLOCKed"); + } + + /* ======================================================================= */ + /* 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) { + 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); + crypto::secret_key vkey; + crypto::secret_key skey; + this->get_secret_keys(vkey,skey); + #endif + + 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; + } + + + /* ======================================================================= */ + /* WALLET & ADDRESS */ + /* ======================================================================= */ + + bool device_ledger::get_secret_keys(crypto::secret_key &viewkey , crypto::secret_key &spendkey) { + memset(viewkey.data, 0x00, 32); + memset(spendkey.data, 0xFF, 32); + return true; + } + + /* Application API */ + bool device_ledger::get_public_address(cryptonote::account_public_address &pubkey){ + + lock_device(); + try { + 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); + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + #ifdef DEBUG_HWDEVICE + bool device_ledger::get_secret_keys(crypto::secret_key &viewkey , crypto::secret_key &spendkey) { + lock_device(); + try { + //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(); + + //clear key + memmove(ledger::viewkey.data, this->buffer_recv+64, 32); + memmove(ledger::spendkey.data, this->buffer_recv+96, 32); + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + #endif + + bool device_ledger::generate_chacha_key(const cryptonote::account_keys &keys, crypto::chacha_key &key) { + lock_device(); + try { + int offset; + + #ifdef DEBUG_HWDEVICE + const cryptonote::account_keys keys_x = decrypt(keys); + crypto::chacha_key key_x; + 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(&prekey[0], sizeof(prekey), key, true); + + #ifdef DEBUG_HWDEVICE + hw::ledger::check32("generate_chacha_key", "key", (char*)key_x.data(), (char*)key.data()); + #endif + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + 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){ + + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + #ifdef DEBUG_HWDEVICE + const crypto::public_key pub_x = pub; + const crypto::key_derivation derivation_x = hw::ledger::decrypt(derivation); + const std::size_t output_index_x = output_index; + crypto::public_key derived_pub_x; + this->controle_device.derive_subaddress_public_key(pub_x, derivation_x,output_index_x,derived_pub_x); + #endif + + reset_buffer(); + + options = 0; + + 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] = options; + 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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::get_subaddress_spend_public_key(const cryptonote::account_keys& keys, const cryptonote::subaddress_index &index, crypto::public_key &D) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + #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; + this->controle_device.get_subaddress_spend_public_key(keys_x, index_x, D_x); + #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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool 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; + this->get_subaddress_spend_public_key(keys, index, D); + pkeys.push_back(D); + } + return true; + } + + bool device_ledger::get_subaddress(const cryptonote::account_keys& keys, const cryptonote::subaddress_index &index, cryptonote::account_public_address &address) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + #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; + this->controle_device.get_subaddress(keys_x, index_x, address_x); + #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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::get_subaddress_secret_key(const crypto::secret_key &sec, const cryptonote::subaddress_index &index, crypto::secret_key &sub_sec) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + #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; + this->controle_device.get_subaddress_secret_key(sec_x, index_x, sub_sec_x); + #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] = options; + 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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + /* ======================================================================= */ + /* DERIVATION & KEY */ + /* ======================================================================= */ + + bool device_ledger::verify_keys(const crypto::secret_key &secret_key, const crypto::public_key &public_key) { + lock_device(); + try { + int offset =0,sw; + unsigned char options = 0; + 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 ; + + unlock_device(); + return verified == 1; + }catch (...) { + unlock_device(); + throw; + } + return false; + } + + bool device_ledger::scalarmultKey(rct::key & aP, const rct::key &P, const rct::key &a) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + #ifdef DEBUG_HWDEVICE + const rct::key pub_x = pub; + const rct::key sec_x = hw::ledger::decrypt(sec); + rct::key mulkey_x; + this->controle_device.scalarmultKey(pub_x, sec_x, mulkey_x); + #endif + + reset_buffer(); + + options = 0; + + 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] = options; + 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*)mulkey_x.bytes, (char*)mulkey.bytes); + #endif + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::scalarmultBase(rct::key &aG, const rct::key &a) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + #ifdef DEBUG_HWDEVICE + const rct::key sec_x = hw::ledger::decrypt(sec); + rct::key mulkey_x; + this->controle_device.scalarmultBase(sec_x, mulkey_x); + #endif + + reset_buffer(); + + options = 0; + + 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] = options; + 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*)mulkey_x.bytes, (char*)mulkey.bytes); + #endif + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::sc_secret_add( crypto::secret_key &r, const crypto::secret_key &a, const crypto::secret_key &b) { + + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + #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(); + + options = 0; + + 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] = options; + 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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::generate_keys(crypto::public_key &pub, crypto::secret_key &sec, const crypto::secret_key& recovery_key, bool recover, crypto::secret_key &rng) { + if (recover) { + throw std::runtime_error("device generate key does not support recover"); + } + + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + #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(); + + options = 0; + + 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] = options; + 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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + + } + + bool device_ledger::generate_key_derivation(const crypto::public_key &pub, const crypto::secret_key &sec, crypto::key_derivation &derivation) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + #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; + this->controle_device.generate_key_derivation(pub_x, sec_x, derivation_x); + hw::ledger::log_hexbuffer("generate_key_derivation: sec_x.data", sec_x.data, 32); + hw::ledger::log_hexbuffer("generate_key_derivation: pub_x.data", pub_x.data, 32); + hw::ledger::log_hexbuffer("generate_key_derivation: derivation_x.data", derivation_x.data, 32); + #endif + + 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] = options; + 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); + + #ifdef DEBUG_HWDEVICE + crypto::key_derivation derivation_clear = hw::ledger::decrypt(derivation); + hw::ledger::check32("generate_key_derivation", "derivation", derivation_x.data, derivation_clear.data); + #endif + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::derivation_to_scalar(const crypto::key_derivation &derivation, const size_t output_index, crypto::ec_scalar &res) { + lock_device(); + try { + int offset; + unsigned char options; + + #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; + this->controle_device.derivation_to_scalar(derivation_x, output_index_x, res_x); + #endif + + reset_buffer(); + + options = 0; + + 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] = options; + 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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + 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) { + lock_device(); + try { + int offset; + unsigned char options; + + #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; + this->controle_device.derive_secret_key(derivation_x, output_index_x, sec_x, derived_sec_x); + #endif + + reset_buffer(); + + options = 0; + + 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] = options; + 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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + 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){ + lock_device(); + try { + int offset; + unsigned char options; + + #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; + this->controle_device.derive_public_key(derivation_x, output_index_x, pub_x, derived_pub_x); + #endif + + reset_buffer(); + + options = 0; + + 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] = options; + 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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::secret_key_to_public_key(const crypto::secret_key &sec, crypto::public_key &pub) { + lock_device(); + try { + int offset; + unsigned char options; + + #ifdef DEBUG_HWDEVICE + const crypto::secret_key sec_x = hw::ledger::decrypt(sec); + crypto::public_key pub_x; + this->controle_device.secret_key_to_public_key(sec_x, pub_x); + #endif + + reset_buffer(); + + options = 0; + + 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] = options; + 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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::generate_key_image(const crypto::public_key &pub, const crypto::secret_key &sec, crypto::key_image &image){ + lock_device(); + try { + int offset; + unsigned char options; + + #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; + this->controle_device.generate_key_image(pub_x, sec_x, image_x); + #endif + + reset_buffer(); + + options = 0; + + 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] = options; + 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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + /* ======================================================================= */ + /* TRANSACTION */ + /* ======================================================================= */ + + bool device_ledger::open_tx(crypto::secret_key &tx_key) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + lock_tx(); + 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); + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::set_signature_mode(unsigned int sig_mode) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + reset_buffer(); + + 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] = sig_mode; + offset += 1; + + this->buffer_send[4] = offset-5; + this->length_send = offset; + this->exchange(); + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::encrypt_payment_id(const crypto::public_key &public_key, const crypto::secret_key &secret_key, crypto::hash8 &payment_id) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + #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(public_key_x, secret_key_x, payment_id_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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::add_output_key_mapping(const crypto::public_key &Aout, const crypto::public_key &Bout, size_t real_output_index, + const rct::key &amount_key, const crypto::public_key &out_eph_public_key) { + lock_device(); + try { + key_map.add(ABPkeys(rct::pk2rct(Aout),rct::pk2rct(Bout), real_output_index, rct::pk2rct(out_eph_public_key), amount_key)); + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::ecdhEncode(rct::ecdhTuple & unmasked, const rct::key & AKout) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + #ifdef DEBUG_HWDEVICE + const rct::key AKout_x = hw::ledger::decrypt(AKout); + rct::ecdhTuple unmasked_x = unmasked; + this->controle_device.ecdhEncode(AKout_x, unmasked_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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::ecdhDecode(rct::ecdhTuple & masked, const rct::key & AKout) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + #ifdef DEBUG_HWDEVICE + const rct::key AKout_x = hw::ledger::decrypt(AKout); + rct::ecdhTuple masked_x = masked; + this->controle_device.ecdhDecode(AKout_x, masked_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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + 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) { + + lock_device(); + try { + unsigned char options = 0; + 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 + 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 + 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) { + //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: Aout Bout AKout + offset += 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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + 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) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + #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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::mlsag_prepare(rct::key &a, rct::key &aG) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + #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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::mlsag_hash(const rct::keyV &long_message, rct::key &c) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + 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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + 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) { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + 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 + + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + bool device_ledger::close_tx() { + lock_device(); + try { + int offset =0; + unsigned char options = 0; + + 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(); + + unlock_tx(); + unlock_device(); + }catch (...) { + unlock_device(); + throw; + } + return true; + } + + /* ---------------------------------------------------------- */ + + static device_ledger *legder_device = NULL; + void register_all(std::map<std::string, std::unique_ptr<device>> ®istry) { + if (!legder_device) { + legder_device = new device_ledger(); + legder_device->set_name("Ledger"); + } + registry.insert(std::make_pair("Ledger", legder_device)); + } + + #else //WITH_DEVICE_LEDGER + + void register_all(std::map<std::string, std::unique_ptr<device>> ®istry) { + } + + #endif //WITH_DEVICE_LEDGER + + } +} + |