Commit graph

5180 commits

Author SHA1 Message Date
moneromooo-monero
e0a61299fb
network_throttle: remove unused xxx static member 2017-12-18 15:16:09 +00:00
moneromooo-monero
24f584d90d
cryptonote_core: remove unused functions with off by one bugs 2017-12-18 15:16:06 +00:00
moneromooo-monero
b1634aa3e8
blockchain: don't leave dangling pointers in this 2017-12-18 15:16:03 +00:00
moneromooo-monero
8e60b81c48
cryptonote_core: fix db leak on error 2017-12-18 15:16:00 +00:00
moneromooo-monero
213e326cc9
abstract_tcp_server2: log init_server errors as fatal
so they show up by default
2017-12-18 15:15:57 +00:00
moneromooo-monero
b51dc56687
use const refs in for loops for non tiny types 2017-12-18 15:15:54 +00:00
moneromooo-monero
f0568ca6ac
net_parse_helpers: fix regex error checking 2017-12-18 15:15:52 +00:00
moneromooo-monero
b49ddc766d
check accessing an element past the end of a container 2017-12-18 15:15:49 +00:00
moneromooo-monero
2305bf260d
check return value for generate_key_derivation and derive_public_key 2017-12-18 15:15:46 +00:00
moneromooo-monero
a4240d9ffc
catch const exceptions 2017-12-18 15:15:43 +00:00
moneromooo-monero
45a1c4c088
add empty container sanity checks when using front() and back() 2017-12-18 15:15:40 +00:00
moneromooo-monero
56fa6ce15f
tests: fix a buffer overread in a unit test
and remove a leftover debugging sanity check
2017-12-18 15:15:37 +00:00
moneromooo-monero
b4524892fb
rpc: guard against json parsing a non object 2017-12-18 15:15:32 +00:00
moneromooo-monero
c2ed8618e4
easylogging++: avoid buffer underflow 2017-12-18 15:15:29 +00:00
moneromooo-monero
187a6ab2d2
epee: trap failure to parse URI from request 2017-12-18 15:15:26 +00:00
moneromooo-monero
061789b5dd
checkpoints: trap failure to load JSON checkpoints 2017-12-18 15:15:23 +00:00
moneromooo-monero
ba2fefb9a4
checkpoints: pass std::string by const ref, not const value 2017-12-18 15:15:19 +00:00
moneromooo-monero
38c8f4e0a3
mlog: terminate a string at last char, just in case 2017-12-18 15:15:16 +00:00
moneromooo-monero
d753d716a6
fix a few leaks by throwing objects, not newed pointers to objects 2017-12-18 15:15:13 +00:00
moneromooo-monero
fe568db83d
p2p: use size_t for arbitrary counters instead of uint8_t 2017-12-18 15:15:10 +00:00
moneromooo-monero
46d6fa35c9
cryptonote_protocol: sanity check chain hashes from peer 2017-12-18 15:15:07 +00:00
moneromooo-monero
25584f8639
cryptonote_protocol: print peer versions when unexpected
also avoid integer underflow on zero height
2017-12-18 15:15:05 +00:00
moneromooo-monero
490a5d41ca
rpc: do not try to use an invalid txid in relay_tx 2017-12-18 15:15:01 +00:00
Riccardo Spagni
1cc7451130
Merge pull request #2134
ceabc4f9 change the N-1/N multisig second message signer for auth (moneromooo-monero)
55c2845d core_tests: multisig test now tests multiple inputs (moneromooo-monero)
98db7ee4 wallet: factor multisig info parsing (moneromooo-monero)
31a97e76 wallet: use raw encrypted data in multisig import/export RPC (moneromooo-monero)
2fa707d1 wallet: add multisig sign/submit RPC (moneromooo-monero)
e36f5b60 Match surae's recommendation to derive multisig keys (moneromooo-monero)
a36c261d wallet2: fix slow multisig unit tests with subaddress patch (moneromooo-monero)
fa569712 make multisig work with subaddresses (moneromooo-monero)
dffa0dce simplewallet: add export_raw_multisig command (moneromooo-monero)
7f4c220b simplewallet: add multisig to wallet type in wallet_info output (moneromooo-monero)
26529038 wallet: guard against partly initialized multisig wallet (moneromooo-monero)
66e34e85 add multisig core test and factor multisig building blocks (moneromooo-monero)
f4eda44c N-1/N multisig (moneromooo-monero)
cd64c799 multisig address generation RPC (moneromooo-monero)
fff871a4 gen_multisig: generates multisig wallets if participants trust each other (moneromooo-monero)
95a21a79 wallet2: allow empty wallet filename to avoid saving data (moneromooo-monero)
b84b3565 tests: add multisig unit tests (moneromooo-monero)
4c313324 Add N/N multisig tx generation and signing (moneromooo-monero)
6d219a92 wallet: add multisig key generation (moneromooo-monero)
2017-12-17 21:05:16 +02:00
Riccardo Spagni
2879a9be3c
Merge pull request #2950
d9b137f1 cryptonote_core: fix blockchain init call after prototype change (moneromooo-monero)
2017-12-17 21:04:17 +02:00
moneromooo-monero
d9b137f161
cryptonote_core: fix blockchain init call after prototype change 2017-12-17 18:47:46 +00:00
moneromooo-monero
ceabc4f92b
change the N-1/N multisig second message signer for auth 2017-12-17 16:12:50 +00:00
moneromooo-monero
55c2845d1a
core_tests: multisig test now tests multiple inputs 2017-12-17 16:12:47 +00:00
moneromooo-monero
98db7ee467
wallet: factor multisig info parsing 2017-12-17 16:12:44 +00:00
moneromooo-monero
31a97e761e
wallet: use raw encrypted data in multisig import/export RPC 2017-12-17 16:12:41 +00:00
moneromooo-monero
2fa707d1a5
wallet: add multisig sign/submit RPC 2017-12-17 16:12:35 +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
dffa0dceaf
simplewallet: add export_raw_multisig command
It exports raw transactions, so they may be used by other tools,
for instance to be relayed to the network externally.
2017-12-17 16:12:24 +00:00
moneromooo-monero
7f4c220b70
simplewallet: add multisig to wallet type in wallet_info output 2017-12-17 16:12:21 +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
cd64c7990c
multisig address generation RPC 2017-12-17 16:12:09 +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
moneromooo-monero
6d219a9250
wallet: add multisig key generation
Scheme by luigi1111
2017-12-17 16:11:53 +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
Riccardo Spagni
b806d9844e
Merge pull request #2864
09ce03d6 move includes around to lessen overall load (moneromooo-monero)
2017-12-17 12:58:46 +02:00
moneromooo-monero
43f5269f84
Wallets now do not depend on the daemon rpc lib
The shared RPC code is now moved off into a separate lib
2017-12-16 23:28:59 +00:00
moneromooo-monero
bb89ae8b20
move connection_basic and network_throttle from src/p2p to epee
These even had the epee namespace.
This fixes some ugly circular dependencies.
2017-12-16 23:28:43 +00:00