Commit graph

514 commits

Author SHA1 Message Date
moneromooo-monero
55c2845d1a
core_tests: multisig test now tests multiple inputs 2017-12-17 16:12:47 +00:00
moneromooo-monero
e36f5b6021
Match surae's recommendation to derive multisig keys 2017-12-17 16:12:32 +00:00
moneromooo-monero
a36c261d7a
wallet2: fix slow multisig unit tests with subaddress patch
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.
2017-12-17 16:12:30 +00:00
moneromooo-monero
fa5697127f
make multisig work with subaddresses
Thanks to kenshi84 for help getting this work
2017-12-17 16:12:27 +00:00
moneromooo-monero
265290388b
wallet: guard against partly initialized multisig wallet 2017-12-17 16:12:18 +00:00
moneromooo-monero
66e34e85b1
add multisig core test and factor multisig building blocks 2017-12-17 16:12:15 +00:00
moneromooo-monero
f4eda44ce3
N-1/N multisig 2017-12-17 16:12:12 +00:00
moneromooo-monero
fff871a455
gen_multisig: generates multisig wallets if participants trust each other 2017-12-17 16:12:06 +00:00
moneromooo-monero
95a21a793d
wallet2: allow empty wallet filename to avoid saving data
Useful to speed tests up and avoid unnecessary leftover files
2017-12-17 16:12:03 +00:00
moneromooo-monero
b84b3565f3
tests: add multisig unit tests 2017-12-17 16:12:00 +00:00
moneromooo-monero
4c313324b1
Add N/N multisig tx generation and signing
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
2017-12-17 16:11:57 +00:00
Riccardo Spagni
a3a8343051
Merge pull request #2857
7193b89f Scrub keys from memory just before scope end. (moneromooo-monero)
2017-12-17 13:00:11 +02:00
Riccardo Spagni
066fd7aced
Merge pull request #2877
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)
2017-12-17 12:59:44 +02:00
moneromooo-monero
4abf25f3c9
cryptonote_core does not depend on p2p anymore
As a followon side effect, this makes a lot of inline code
included only in particular cpp files (and instanciated
when necessary.
2017-12-16 23:28:38 +00:00
moneromooo-monero
09ce03d612
move includes around to lessen overall load 2017-12-16 22:46:38 +00:00
moneromooo-monero
7193b89fe5 Scrub keys from memory just before scope end.
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.
2017-12-16 15:40:33 -07:00
Riccardo Spagni
6c0953b15a
Merge pull request #2860
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)
2017-12-16 23:19:27 +02:00
moneromooo-monero
c83d0b3ee2
add bulletproofs from v7 on testnet 2017-12-08 13:50:45 +00:00
moneromooo-monero
d58835b2f6
integrate bulletproofs into monero 2017-12-08 13:48:15 +00:00
moneromooo-monero
90b8d9f271
add bulletproofs to the build, with basic unit tests
Based on Java code from Sarang Noether
2017-12-08 13:41:13 +00:00
moneromooo-monero
3dffe71b72
new wipeable_string class to replace std::string passphrases 2017-11-27 22:25:57 +00:00
moneromooo-monero
000666ff78
add a memwipe function
It's meant to avoid being optimized out

memory_cleanse lifted from bitcoin
2017-11-27 22:15:34 +00:00
moneromooo-monero
37c1ce3b68
tests: disable libwallet_api_tests when BUILD_GUI_DEPS is not set 2017-11-26 08:25:42 +00:00
Riccardo Spagni
2e54e7ff0b
Merge pull request #2824
51895fd7 split wallet and wallet_api (moneromooo-monero)
2017-11-25 19:53:35 +02:00
moneromooo-monero
51895fd7df
split wallet and wallet_api
This speeds up building a lot when wallet2.h (or something it
includes) changes, since all the API includes wallet2.h
2017-11-16 12:10:29 +00:00
moneromooo-monero
f493eabba7
unit_tests: fix running without --data-dir
While there, also use the new is_arg_defaulted API instead of
going to poke the internal API directly.
2017-11-15 10:45:14 +00:00
Riccardo Spagni
5c2dfe157b
Merge pull request #2771
e3e838d0 kaccak: remove unused return value (moneromooo-monero)
4877aca2 keccak: some paranoid "can't happen" checks (moneromooo-monero)
2017-11-15 11:22:56 +02:00
Riccardo Spagni
74b699beda
Merge pull request #2812
9ac52127 unit_tests: fix build after wallet2 list/vector change (moneromooo-monero)
2017-11-14 21:33:38 +02:00
Riccardo Spagni
edebe4e3b6
Merge pull request #2736
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)
2017-11-14 21:31:51 +02:00
Riccardo Spagni
922aaf4e2a
Merge pull request #2644
a17efcb0 make this build on SunOS/Solaris (Pavel Maryanov)
2017-11-14 21:31:09 +02:00
moneromooo-monero
9ac5212775
unit_tests: fix build after wallet2 list/vector change 2017-11-14 18:30:58 +00:00
moneromooo-monero
082db75f28
move cryptonote command line options to cryptonote_core
Those have no reason to be in a generic module
2017-11-14 17:06:19 +00:00
Pavel Maryanov
a17efcb039
make this build on SunOS/Solaris 2017-11-14 17:03:48 +00:00
moneromooo-monero
383ff4f689
remove "using namespace std" from headers
It's nasty, and actually breaks on Solaris, where if.h fails to
build due to:

  struct map *if_memmap;
2017-11-14 16:56:10 +00:00
Riccardo Spagni
4754390725
Merge pull request #2720
110339f5 unit_tests: fix data dir determination (moneromooo-monero)
2017-11-14 15:16:23 +02:00
Riccardo Spagni
8df6b010eb
Merge pull request #2696
937e7f8a Initialize openssl on startup (moneromooo-monero)
2017-11-14 15:13:44 +02:00
Riccardo Spagni
8d8032b4c6
Merge pull request #2691
f92f1606 core_tests: do not include chaingen_tests_list.h in all tests (moneromooo-monero)
2017-11-14 15:12:40 +02:00
Riccardo Spagni
0c5872c869
Merge pull request #2686
21b9f6f3 always use core_tests for consistency, not coretests (moneromooo-monero)
2017-11-14 15:12:23 +02:00
Riccardo Spagni
5d52463b57
Merge pull request #2670
4fb77946 unit tests: OOB indexes & adding subaddress (Cole Lightfighter)
4fd6a3d2 Subaddress unit tests (Cole Lightfighter)
2017-11-14 15:01:49 +02:00
Riccardo Spagni
9317c9c57e
Merge pull request #2617
7dbf76d0 Fix an object lifetime bug in net load tests (moneromooo-monero)
2017-11-14 14:54:05 +02:00
moneromooo-monero
e3e838d0cf
kaccak: remove unused return value 2017-11-11 11:20:48 +00:00
binaryFate
10013e9434 Protect node privacy by proper filtering in restricted-mode RPC answers
This patch allows to filter out sensitive information for queries that rely on the pool state, when running in restricted mode.
This filtering is only applied to data sent back to RPC queries. Results of inline commands typed locally in the daemon are not affected.
In practice, when running with `--restricted-rpc`:
* get_transaction_pool will list relayed transactions with the fields "last relayed time" and "received time" set to zero.
* get_transaction_pool will not list transaction that have do_not_relay set to true, and will not list key images that are used only for such transactions
* get_transaction_pool_hashes.bin will not list such transaction
* get_transaction_pool_stats will not count such transactions in any of the aggregated values that are computed

The implementation does not make filtering the default, so developers should be mindful of this if they add new RPC functionality.
Fixes #2590.
2017-11-08 13:07:07 +01:00
Riccardo Spagni
9d65a9cc98
Merge pull request #2483
ff7745bb Edited test readme for accuracy and depth (Cole Lightfighter)
c300ae56 Added test documentation & Keccak unit test (Cole Lightfighter)
f6119a8e Added test documentation & Keccak unit test (Cole Lightfighter)
2017-11-06 01:52:08 +02:00
Riccardo Spagni
13a84caa22
Merge pull request #2662
88ebfd64 core_tests: fix for subaddress patch (kenshi84)
e373a203 performance_tests: add master spend pubkey to subaddress hashtable (kenshi84)
2017-11-03 11:58:06 +02:00
Riccardo Spagni
4146f2e202
Merge pull request #2666
8233a24b unit_tests: fix build on windows (moneromooo-monero)
2017-11-02 11:44:36 +02:00
Jaquee
d04633121b fix libwallet api test after api change 2017-10-29 15:26:23 +01:00
moneromooo-monero
110339f553
unit_tests: fix data dir determination 2017-10-24 10:22:46 +01:00
moneromooo-monero
937e7f8aa6
Initialize openssl on startup 2017-10-21 10:17:18 +01:00
moneromooo-monero
f92f160674
core_tests: do not include chaingen_tests_list.h in all tests
This fixes all tests being annoyingly rebuilt when one changes
2017-10-20 18:53:43 +01:00
Cole Lightfighter
4fb7794651 unit tests: OOB indexes & adding subaddress
Tests for checking proper error throwing for out-of-bounds subaddress
indexes, and proper addition of subaddresses.

Signed-off-by: Cole Lightfighter <cole@onicsla.bz>
2017-10-19 20:33:58 -06:00