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btc_multi_input update
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@sinev-valentine
sinev-valentine committed Feb 11, 2019
1 parent 4bca462 commit 037afe3
Showing 1 changed file with 75 additions and 81 deletions.
156 changes: 75 additions & 81 deletions keychain_lib/include/keychain_lib/keychain_commands.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -472,101 +472,95 @@ struct keychain_command<command_te::sign_hex> : keychain_command_base
dev::FixedHash<32>::ConstructFromPointerType::ConstructFromPointer));
};

if (trx_info.num_vins>1)
// construct transaction header
std::stringstream ss;
std::string trx_header;
ss << std::setfill('0') << std::hex
<< std::setw(8) << __bswap_32 (trx_info.version) << std::setw(2) << ((int) trx_info.num_vins);
trx_header = ss.str();

// construct transaction footer
std::string trx_footer;
ss.str("");
ss << std::setw(2) << ((int) trx_info.num_vouts);
trx_footer = ss.str();
for (auto& a : trx_info.vouts)
{
std::stringstream ss;

std::string trx_header;
ss << std::setfill('0') << std::hex
<< std::setw(8) << __bswap_32 (trx_info.version) << std::setw(2) << ((int) trx_info.num_vins);
trx_header = ss.str();

std::string trx_footer;
ss.str("");
ss << std::setw(2) << ((int) trx_info.num_vouts);
trx_footer = ss.str();
for (auto& a : trx_info.vouts)
{
ss.str("");
ss << std::setw(16) << __bswap_64(a.amount) << std::setw(2) << ((int) a.script_len);
trx_footer += ss.str();
trx_footer += a.script_pub_key;
}
ss.str("");
ss << std::setw(8) << __bswap_32(trx_info.locktime);
ss << std::setw(16) << __bswap_64(a.amount) << std::setw(2) << ((int) a.script_len);
trx_footer += ss.str();
trx_footer += a.script_pub_key;
}
ss.str("");
ss << std::setw(8) << __bswap_32(trx_info.locktime);
trx_footer += ss.str();

for (int loop =0; loop < trx_info.vins.size(); loop++)
{ // construct Signing Message Template for each input and signing it.
std::string trx = trx_header;
for (int input =0; input < trx_info.vins.size(); input++)
// construct Signing Message Template for each input and signing it.
for (int loop =0; loop < trx_info.vins.size(); loop++)
{
std::string trx = trx_header;
for (int input =0; input < trx_info.vins.size(); input++)
{
trx += trx_info.vins[input].txid;
ss.str("");
ss << std::setw(8) << __bswap_32(trx_info.vins[input].output_id);
trx += ss.str();
if (input == loop) // include scriptSig only signing input
{
trx += trx_info.vins[input].txid;
ss.str("");
ss << std::setw(8) << __bswap_32(trx_info.vins[input].output_id);
ss << std::setw(2) << ((int) trx_info.vins[input].script_len);
trx += ss.str();
if (input == loop)
{
ss.str("");
ss << std::setw(2) << ((int) trx_info.vins[input].script_len);
trx += ss.str();
trx += trx_info.vins[input].script_sig;
}
trx += trx_info.vins[input].end_of_vin;
trx += trx_info.vins[input].script_sig;
}

trx += trx_footer;
ss.str("");
uint32_t sig_hash_code = 1;
ss << std::setw(8) << __bswap_32(sig_hash_code);
trx += ss.str();

std::vector<unsigned char> raw(trx.length());
auto raw_len = keychain_app::from_hex(trx, raw.data(), raw.size());
raw.resize(raw_len);
signatures.push_back(sign(raw)) ;
trx += trx_info.vins[input].end_of_vin;
}

// construct Signed Transaction
std::string trx = trx_header;
it = signatures.begin();
auto iter = [&it, &signatures]() { assert(it < signatures.end()); return *it++;};
for (auto& a : trx_info.vins)
{
auto sig = iter().hex();
trx += a.txid;
ss.str("");
ss << std::setw(8) << __bswap_32(a.output_id);
trx += ss.str();
ss.str("");
uint8_t script_len = 0x6a, pushdata_sig = 0x47, header=0x30, sig_length=0x44, integer=2, r_length=0x20,
s_length=0x20, sig_hash_code=1, pushdata_pubkey=0x21;
// script_len + signature DER-encoded + pub_key
ss << std::setw(2) << ((int) script_len)
<< std::setw(2) << ((int) pushdata_sig)
<< std::setw(2) << ((int) header)
<< std::setw(2) << ((int) sig_length)
<< std::setw(2) << ((int) integer)
<< std::setw(2) << ((int) r_length)
<< sig.substr(0, 64)
<< std::setw(2) << ((int) integer)
<< std::setw(2) << ((int) s_length)
<< sig.substr(64, 64)
<< std::setw(2) << ((int) sig_hash_code)
<< std::setw(2) << ((int) pushdata_pubkey)
<< "03"+ dev::toPublic(private_key).hex().substr(0,64);
trx += ss.str();
trx += a.end_of_vin;
}
trx += trx_footer;

return reply(trx);
ss.str("");
uint32_t sig_hash_code = 1;
ss << std::setw(8) << __bswap_32(sig_hash_code);
trx += ss.str();

std::vector<unsigned char> raw(trx.length());
auto raw_len = keychain_app::from_hex(trx, raw.data(), raw.size());
raw.resize(raw_len);
signatures.push_back(sign(raw));
}
else

// construct Signed Transaction
std::string trx = trx_header;
it = signatures.begin();
auto iter = [&it, &signatures]() { assert(it < signatures.end()); return *it++;};
for (auto& a : trx_info.vins)
{
signature = sign(raw);
auto sig = iter().hex();
trx += a.txid;
ss.str("");
ss << std::setw(8) << __bswap_32(a.output_id);
trx += ss.str();
ss.str("");
uint8_t script_len = 0x6a, pushdata_sig = 0x47, header=0x30, sig_length=0x44, integer=2, r_length=0x20,
s_length=0x20, sig_hash_code=1, pushdata_pubkey=0x21;
// script_len + signature DER-encoded + pub_key
ss << std::setw(2) << ((int) script_len)
<< std::setw(2) << ((int) pushdata_sig)
<< std::setw(2) << ((int) header)
<< std::setw(2) << ((int) sig_length)
<< std::setw(2) << ((int) integer)
<< std::setw(2) << ((int) r_length)
<< sig.substr(0, 64)
<< std::setw(2) << ((int) integer)
<< std::setw(2) << ((int) s_length)
<< sig.substr(64, 64)
<< std::setw(2) << ((int) sig_hash_code)
<< std::setw(2) << ((int) pushdata_pubkey)
<< "03"+ dev::toPublic(private_key).hex().substr(0,64);
trx += ss.str();
trx += a.end_of_vin;
}
break;
trx += trx_footer;

return reply(trx);
}
default:
FC_LIGHT_THROW_EXCEPTION(fc_light::invalid_arg_exception,
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