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While there, move the wallet2 ctor to the cpp file as it's a huge
amount of init list now, and remove an unused one.
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Thanks to kenshi84 for help getting this work
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Useful to speed tests up and avoid unnecessary leftover files
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Scheme by luigi1111:
Multisig for RingCT on Monero
2 of 2
User A (coordinator):
Spendkey b,B
Viewkey a,A (shared)
User B:
Spendkey c,C
Viewkey a,A (shared)
Public Address: C+B, A
Both have their own watch only wallet via C+B, a
A will coordinate spending process (though B could easily as well, coordinator is more needed for more participants)
A and B watch for incoming outputs
B creates "half" key images for discovered output D:
I2_D = (Hs(aR)+c) * Hp(D)
B also creates 1.5 random keypairs (one scalar and 2 pubkeys; one on base G and one on base Hp(D)) for each output, storing the scalar(k) (linked to D),
and sending the pubkeys with I2_D.
A also creates "half" key images:
I1_D = (Hs(aR)+b) * Hp(D)
Then I_D = I1_D + I2_D
Having I_D allows A to check spent status of course, but more importantly allows A to actually build a transaction prefix (and thus transaction).
A builds the transaction until most of the way through MLSAG_Gen, adding the 2 pubkeys (per input) provided with I2_D
to his own generated ones where they are needed (secret row L, R).
At this point, A has a mostly completed transaction (but with an invalid/incomplete signature). A sends over the tx and includes r,
which allows B (with the recipient's address) to verify the destination and amount (by reconstructing the stealth address and decoding ecdhInfo).
B then finishes the signature by computing ss[secret_index][0] = ss[secret_index][0] + k - cc[secret_index]*c (secret indices need to be passed as well).
B can then broadcast the tx, or send it back to A for broadcasting. Once B has completed the signing (and verified the tx to be valid), he can add the full I_D
to his cache, allowing him to verify spent status as well.
NOTE:
A and B *must* present key A and B to each other with a valid signature proving they know a and b respectively.
Otherwise, trickery like the following becomes possible:
A creates viewkey a,A, spendkey b,B, and sends a,A,B to B.
B creates a fake key C = zG - B. B sends C back to A.
The combined spendkey C+B then equals zG, allowing B to spend funds at any time!
The signature fixes this, because B does not know a c corresponding to C (and thus can't produce a signature).
2 of 3
User A (coordinator)
Shared viewkey a,A
"spendkey" j,J
User B
"spendkey" k,K
User C
"spendkey" m,M
A collects K and M from B and C
B collects J and M from A and C
C collects J and K from A and B
A computes N = nG, n = Hs(jK)
A computes O = oG, o = Hs(jM)
B anc C compute P = pG, p = Hs(kM) || Hs(mK)
B and C can also compute N and O respectively if they wish to be able to coordinate
Address: N+O+P, A
The rest follows as above. The coordinator possesses 2 of 3 needed keys; he can get the other
needed part of the signature/key images from either of the other two.
Alternatively, if secure communication exists between parties:
A gives j to B
B gives k to C
C gives m to A
Address: J+K+M, A
3 of 3
Identical to 2 of 2, except the coordinator must collect the key images from both of the others.
The transaction must also be passed an additional hop: A -> B -> C (or A -> C -> B), who can then broadcast it
or send it back to A.
N-1 of N
Generally the same as 2 of 3, except participants need to be arranged in a ring to pass their keys around
(using either the secure or insecure method).
For example (ignoring viewkey so letters line up):
[4 of 5]
User: spendkey
A: a
B: b
C: c
D: d
E: e
a -> B, b -> C, c -> D, d -> E, e -> A
Order of signing does not matter, it just must reach n-1 users. A "remaining keys" list must be passed around with
the transaction so the signers know if they should use 1 or both keys.
Collecting key image parts becomes a little messy, but basically every wallet sends over both of their parts with a tag for each.
Thia way the coordinating wallet can keep track of which images have been added and which wallet they come from. Reasoning:
1. The key images must be added only once (coordinator will get key images for key a from both A and B, he must add only one to get the proper key actual key image)
2. The coordinator must keep track of which helper pubkeys came from which wallet (discussed in 2 of 2 section). The coordinator
must choose only one set to use, then include his choice in the "remaining keys" list so the other wallets know which of their keys to use.
You can generalize it further to N-2 of N or even M of N, but I'm not sure there's legitimate demand to justify the complexity. It might
also be straightforward enough to support with minimal changes from N-1 format.
You basically just give each user additional keys for each additional "-1" you desire. N-2 would be 3 keys per user, N-3 4 keys, etc.
The process is somewhat cumbersome:
To create a N/N multisig wallet:
- each participant creates a normal wallet
- each participant runs "prepare_multisig", and sends the resulting string to every other participant
- each participant runs "make_multisig N A B C D...", with N being the threshold and A B C D... being the strings received from other participants (the threshold must currently equal N)
As txes are received, participants' wallets will need to synchronize so that those new outputs may be spent:
- each participant runs "export_multisig FILENAME", and sends the FILENAME file to every other participant
- each participant runs "import_multisig A B C D...", with A B C D... being the filenames received from other participants
Then, a transaction may be initiated:
- one of the participants runs "transfer ADDRESS AMOUNT"
- this partly signed transaction will be written to the "multisig_monero_tx" file
- the initiator sends this file to another participant
- that other participant runs "sign_multisig multisig_monero_tx"
- the resulting transaction is written to the "multisig_monero_tx" file again
- if the threshold was not reached, the file must be sent to another participant, until enough have signed
- the last participant to sign runs "submit_multisig multisig_monero_tx" to relay the transaction to the Monero network
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Scheme by luigi1111
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7193b89f Scrub keys from memory just before scope end. (moneromooo-monero)
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43f5269f Wallets now do not depend on the daemon rpc lib (moneromooo-monero)
bb89ae8b move connection_basic and network_throttle from src/p2p to epee (moneromooo-monero)
4abf25f3 cryptonote_core does not depend on p2p anymore (moneromooo-monero)
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The shared RPC code is now moved off into a separate lib
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Partially implements #74.
Securely erases keys from memory after they are no longer needed. Might have a
performance impact, which I haven't measured (perf measurements aren't
generally reliable on laptops).
Thanks to @stoffu for the suggestion to specialize the pod_to_hex/hex_to_pod
functions. Using overloads + SFINAE instead generalizes it so other types can
be marked as scrubbed without adding more boilerplate.
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a1e3670b catch wallet decrypt false positive (Riccardo Spagni)
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3dffe71b new wipeable_string class to replace std::string passphrases (moneromooo-monero)
7a2a5741 utils: initialize easylogging++ in on_startup (moneromooo-monero)
54950829 use memwipe in a few relevant places (moneromooo-monero)
000666ff add a memwipe function (moneromooo-monero)
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b0426d4c Fixes #759 Add sanity check on restore height (Cifrado)
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d875a9ff wallet2: detect multiple outputs from a tx to different subaddresses (moneromooo-monero)
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6cbe7bcd wallet2: check generate_key_derivation return value (moneromooo-monero)
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51895fd7 split wallet and wallet_api (moneromooo-monero)
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0d149f70 Add out-of-bound exceptions and handle them in RPC (Michał Sałaban)
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61712384 daemon & simplewallet: don't set max-concurrency when unspecified (stoffu)
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da706b61 Fix false GCC warning '‘*((void*)& subaddr_account +4)’ may be used unitialized' (binaryFate)
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0b726be7 wallet2: minimize the number of construct_tx calls (moneromooo-monero)
9d505d26 wallet2: cleanup some debug logs (moneromooo-monero)
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7e387fb1 wallet2: only add a dummy 0 output if there's one output otherwise (moneromooo-monero)
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b0b7e0f0 Spend proof without txkey (stoffu)
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9739da1e wallet_rpc_server: new relay_tx command (moneromooo-monero)
01dc8297 wallet: transfer RPC can now return tx metadata (pending_tx) (moneromooo-monero)
83fa9047 serialization: add std::set and std::unordered_set serialization (moneromooo-monero)
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It takes a full tx+metadata hex string as input
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ef941855 Wallet RPC: Add prompt-for-password flag (Tim L)
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- refactoring: proof generation/checking code was moved from simplewallet.cpp to wallet2.cpp
- allow an arbitrary message to be signed together with txid
- introduce two types (outbound & inbound) of tx proofs; with the same syntax, inbound is selected when <address> belongs to this wallet, outbound otherwise. see GitHub thread for more discussion
- wallet RPC: added get_tx_key, check_tx_key, get_tx_proof, check_tx_proof
- wallet API: moved WalletManagerImpl::checkPayment to Wallet::checkTxKey, added Wallet::getTxProof/checkTxProof
- get_tx_key/check_tx_key: handle additional tx keys by concatenating them into a single string
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This speeds up building a lot when wallet2.h (or something it
includes) changes, since all the API includes wallet2.h
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ffe5b857 Correct totals computation (Michał Sałaban)
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5d92c7cc wallet2: typo fix in error message (moneromooo-monero)
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b738f4b5 wallet: add sweep_single command (stoffu)
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7cb303a4 wallet2: simplify incoming tx processing code (moneromooo-monero)
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Missing an error argument for an exception
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99f398a2 wallet2: avoid growing the short history when refreshing in a loop (moneromooo-monero)
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0d9c0db9 Do not build against epee_readline if it was not built (Howard Chu)
178014c9 split off readline code into epee_readline (moneromooo-monero)
a9e14a19 link against readline only for monerod and wallet-wallet-{rpc,cli} (moneromooo-monero)
437421ce wallet: move some scoped_message_writer calls from the libs (moneromooo-monero)
e89994e9 wallet: rejig to avoid prompting in wallet2 (moneromooo-monero)
ec5135e5 move input_line from command_line to simplewallet (moneromooo-monero)
082db75f move cryptonote command line options to cryptonote_core (moneromooo-monero)
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383ff4f6 remove "using namespace std" from headers (moneromooo-monero)
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wallet2 is a library, and should not prompt for stdin. Instead,
pass a function so simplewallet can prompt on stdin, and a GUI
might display a window, etc.
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It's nasty, and actually breaks on Solaris, where if.h fails to
build due to:
struct map *if_memmap;
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0bf09154 Fix file permission issue (Tim L)
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d70515fc Used declared default refresh status as default rather than it's current value (Maxime THIEBAUT)
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6cf33446 Remove wallet dependency on p2p (moneromooo-monero)
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9d6c6c5d wallet2: do not bother downloading block hashes below last checkpoint (moneromooo-monero)
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2677ade5 simplewallet: forbid 0 ring size (moneromooo-monero)
da8b60cb simplewallet: reject attempts to use too low mixin early (moneromooo-monero)
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867b67c4 Wallet API: override update subdir when built from src (Jaquee)
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d269bff2 wallet2: use a vector, not a list, for selected_transfers (moneromooo-monero)
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This yields a clear error message rather then some possibly
confusing more technical errors down the line
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ac4018a7 wallet2: workaround for lightwallet before supporting subaddress (followup #2656) (kenshi84)
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ad96c478 wallet-cli: added --generate-from-spend-key option (stoffu)
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ccf53a56 track double spending in the txpool (moneromooo-monero)
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unitialized'
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Friendlier on memory/speed, we know in advance the max amount
of items, which are small and constant size, and there's a lot
of list walking involved.
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balance()
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Transactions in the txpool are marked when another transaction
is seen double spending one or more of its inputs.
This is then exposed wherever appropriate.
Note that being marked with this "double spend seen" flag does
NOT mean this transaction IS a double spend and will never be
mined: it just means that the network has seen at least another
transaction spending at least one of the same inputs, so care
should be taken to wait for a few confirmations before acting
upon that transaction (ie, mostly of use for merchants wanting
to accept unconfirmed transactions).
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b370ef54 Wallet: Descriptions through new commands 'set_description', 'get_description' (rbrunner7)
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b2d416f2 Distinguish "not enough money" and "not enough unlocked money" (binaryFate)
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This branch fixes a file permission issue introduced by https://github.com/monero-project/monero/commit/69c37200aa87f100f731e755bdca7a0dc6ae820a
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d0463312 fix libwallet api test after api change (Jaquee)
a46c1eed Wallet2: Don't throw when subaddress label doesn't exist (Jaquee)
086b7db2 Wallet API: default values for account and subaddr index (Jaquee)
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69c37200 RPC Add cross origin resource sharing support (Tim L)
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fab3b722 Add more specific RPC error codes (Michał Sałaban)
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626e8078 wallet2: fix show_transfers missing multiple incoming outputs (moneromooo-monero)
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44f14638 wallet2: fix tx size estimator for large number of inputs (moneromooo-monero)
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When loading an older wallet cache, they wouldn't be initialized,
leading them to have random(ish) values, and so assigned to some
random subaddress.
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Fix #1530
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#2656)
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monero/src/cryptonote_protocol/block_queue.cpp:208:44: error:
suggest braces around initialization of subobject [-Werror,-Wmissing-braces]
static const boost::uuids::uuid uuid0 = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
{ }
monero/src/wallet/wallet_rpc_server.cpp:1895:43: error:
lambda capture 'wal' is not used [-Werror,-Wunused-lambda-capture]
tools::signal_handler::install([&wrpc, &wal](int) {
^
monero/src/cryptonote_protocol/cryptonote_protocol_handler.inl:1616:40: error:
lambda capture 'arg' is not used [-Werror,-Wunused-lambda-capture]
m_p2p->for_each_connection([this, &arg, &fluffy_arg, &exclude_context, &fullConnections...
^
monero/src/cryptonote_protocol/cryptonote_protocol_handler.inl:1616:46: error:
lambda capture 'fluffy_arg' is not used [-Werror,-Wunused-lambda-capture]
m_p2p->for_each_connection([this, &arg, &fluffy_arg, &exclude_context, &fullConnections...
^
monero/src/blockchain_utilities/blockchain_export.cpp:181:3: error:
bool literal returned from 'main' [-Werror,-Wmain]
CHECK_AND_ASSERT_MES(r, false, "Failed to initialize source blockchain storage");
^ ~~~~~
monero/contrib/epee/include/misc_log_ex.h:180:97: note:
expanded from macro 'CHECK_AND_ASSERT_MES'
...fail_ret_val, message) do{if(!(expr)) {LOG_ERROR(message); return fail_ret_val;};}while(0)
^ ~~~~~~~~~~~~
monero/src/blockchain_utilities/blockchain_export.cpp:195:3: error:
bool literal returned from 'main' [-Werror,-Wmain]
CHECK_AND_ASSERT_MES(r, false, "Failed to export blockchain raw data");
^ ~~~~~
monero/contrib/epee/include/misc_log_ex.h:180:97: note:
expanded from macro 'CHECK_AND_ASSERT_MES'
...fail_ret_val, message) do{if(!(expr)) {LOG_ERROR(message); return fail_ret_val;};}while(0)
^ ~~~~~~~~~~~~
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06fb9bcf wallet2: fix refresh height calc for new wallets (moneromooo-monero)
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dc19659d Remove network_address_base which has been merged with ipv4_network_address in 8b006877 (Michał Sałaban)
2183ade0 Don't try to create wallet-dir when it's not given, don't crash if wallet-dir already exists. (Michał Sałaban)
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8f0cea63 add a command_line function to check for defaulted options (moneromooo-monero)
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f139a6ca wallet2: fix backlog being off by 1 (moneromooo-monero)
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7130cf0c Add tools::on_startup, and warn about glibc 2.25 bug if found (moneromooo-monero)
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452d4fae tests: fix hashchain unit tests (moneromooo-monero)
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97c2e449 wallet2+API: use separate callbacks for lightwallets (Jaquee)
d9261867 walletAPI: correct confirmations in txHistory for unsynced wallets (Jaquee)
9442b043 walletAPI: lightwallet exceptions (Jaquee)
fc922934 walletAPI: add lightwallet login() and importWalletRequest() (Jaquee)
79207743 walletAPI: init() lightwallet and SSL support (Jaquee)
dde5a1fc walletAPI: add tx unlock_time (Jaquee)
bba5cbed wallet2: remove obsolete get_num_rct_outputs() call from create_transactions_2 (Jaquee)
7a482f30 wallet2: create_transactions_2 lightwallet support (Jaquee)
ce61b818 wallet2: get_outs lightwallet support (Jaquee)
1197cb71 wallet2: commit_tx() lightwallet support (Jaquee)
43b57804 wallet2: refactor is_tx_spendtime_unlocked() (Jaquee)
32e2b003 wallet2: add lightwallet exceptions to common functions (Jaquee)
2e692fc0 wallet2: refresh() lightwallet support (Jaquee)
f44d156c my/openmonero API functions (Jaquee)
288d3c75 wallet2: add remove_obsolete_pool_txs() (Jaquee)
2c6aad7e wallet2: add on_pool_tx_removed callback (Jaquee)
ff7c30aa wallet2: light wallet member variables (Jaquee)
e2a276cb wallet2: add ssl option to init() (Jaquee)
a13540be add string_tools::validate_hex() (Jaquee)
fd773d88 refactor cryptonote_basic::add_tx_pub_key_to_extra (Jaquee)
8bfa6c2d lightwallet rpc server commands (Jaquee)
76961ddc Serializer: string to integer conversion for MyMonero compatibility (Jaquee)
1cf940f2 epee http_client SSL support (Jaquee)
eec10137 CMakeLists.txt - Add openssl include dir (Jaquee)
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d74336d5 wallet: encrypt (un)signed tx, also optionally save unencrypted raw tx hexstr (stoffu)
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https://sourceware.org/bugzilla/show_bug.cgi?id=21778
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wallet-dir already exists.
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180a848c wallet2: Missing underflow check on low heights (landergate)
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93ed9321 cmake: add libversion and libcheckpoints to libwallet_merged (redfish)
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cbc5508b construct_tx_and_get_tx_key: return sorted sources for print_ring_memebrs to work properly (stoffu)
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bd937139 wallet2: error check for generate_key_image_helper, removed redundant wallet_generate_key_image_helper (stoffu)
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We don't want to count "partly filled" blocks in this case
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and relax the not-empty safety check to stay more intuitiuve
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wallet_generate_key_image_helper
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work properly
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d5a9edf2 wallet2: fix exception on split txes (moneromooo-monero)
5c5b0fd0 wallet2: print unused indices on a single line (moneromooo-monero)
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It'd prevent further syncing. Recovery of empty hash chains is
automatic, but requires a running daemon
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Lack of it results in `m_refresh_from_block_height` being < 0 (18446744...) on low heights, which blocks `process_new_blockchain_entry` and never process coins on heights less than blocks_per_month.
Follow-up to #2258
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Needed to link monero-core Qt wallet.
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This saves a lot of space and load/save time for wallet caches
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91def9a5 daemon, wallet: add --max-log-file-size option (selsta)
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28b72b6e tx_pool: pre-init tvc.m_verifivation_failed before processing (moneromooo-monero)
50a629b2 core_tests: catch (impossible in practice) tx extra api failure (moneromooo-monero)
fee15ef1 wallet2: catch failure to parse address (moneromooo-monero)
1399e26d net_peerlist: remove dead code (moneromooo-monero)
50e09698 tx_pool: guard against failure getting tx hash (moneromooo-monero)
54cc209a wallet_rpc_server: catch failure to create directory (moneromooo-monero)
3e55099c wallet_rpc_server: init m_vm to NULL in ctor (moneromooo-monero)
7d0dde5e wallet_args: remove redundant default value for --log-file (moneromooo-monero)
ed4a3350 wallet2: catch failure to save keys file (moneromooo-monero)
44434c8a wallet2_api: check whether dynamic_cast returns NULL (moneromooo-monero)
92f2f687 core: check return value from parse_hexstr_to_binbuff (moneromooo-monero)
5475692e wallet2_api: remove an unused, uninitialized, field (moneromooo-monero)
a7ba3de1 libwallet_api_tests: initialize newblock_triggered on reset (moneromooo-monero)
b2763ace wallet2_api: init error code to "no error" in the ctor (moneromooo-monero)
b5faac53 get_blockchain_top now returns void (moneromooo-monero)
2e44d8f2 wallet_rpc_server: guard against exceptions (moneromooo-monero)
4230876b simplewallet: guard against I/O exceptions (moneromooo-monero)
06c1e057 daemon: initialize decode_as_json in RPC request (moneromooo-monero)
11f71af5 http_base: init size_t in http_request_info ctor (moneromooo-monero)
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ffe27127 wallet_rpc_server: fix index for newly added address book entry (moneromooo-monero)
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e29282d2 build: auto update version info without manually deleting version.h (stoffu)
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CID 175297
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CID 175281
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CID 175279
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CID 175265
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CID 161848
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CID 161844
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Silences CID 161874
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CID 161872
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CID 175305
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a15e8583 wallet2: guard against daemon sending txes in the wrong order (moneromooo-monero)
8fe5f609 rpc: order transactions in the order they were requested (moneromooo-monero)
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9c83f806 Do not create file when RPC user/pass is given and use file locking (Lee Clagett)
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b5cbdce8 wallet2: correctly handle in/out payments for view-only wallet (stoffu)
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6ee1116d store is optional during close and defaults to true; except during descruction (m2049r)
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651baaec wallet: add encrypted seed functionality (moneromooo-monero)
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fee3c3ed Update wallet2.cpp for misspelling (Matthew Campassi)
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55b91d86 wallet: fix --help and --version erroring out (moneromooo-monero)
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Decreases log spam massively on large wallets
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Instead of constantly creating and destroying threads
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Misspelling in wallet2.cpp
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This uses luigi1111's CN_Add method.
See https://xmr.llcoins.net for details.
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adce8ae4 simplewallet: new "fee" command to display fee information (moneromooo-monero)
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2e338ca5 wallet2: account for huge testnet reorgs for estimating height (moneromooo-monero)
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d58700e0 WalletAPI: only allow trusted daemon when importing key images (Jaquee)
8a9bbd26 WalletAPI: copy wallet data when creating a view only wallet (Jaquee)
d27fe32e wallet2: export/import wallet data functions (Jaquee)
225a25f3 import_key_images - allow importing without being connected to daemon (Jaquee)
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