Commit Graph

201 Commits

Author SHA1 Message Date
moneromooo-monero
2899379791
daemon, wallet: new pay for RPC use system
Daemons intended for public use can be set up to require payment
in the form of hashes in exchange for RPC service. This enables
public daemons to receive payment for their work over a large
number of calls. This system behaves similarly to a pool, so
payment takes the form of valid blocks every so often, yielding
a large one off payment, rather than constant micropayments.

This system can also be used by third parties as a "paywall"
layer, where users of a service can pay for use by mining Monero
to the service provider's address. An example of this for web
site access is Primo, a Monero mining based website "paywall":
https://github.com/selene-kovri/primo

This has some advantages:
 - incentive to run a node providing RPC services, thereby promoting the availability of third party nodes for those who can't run their own
 - incentive to run your own node instead of using a third party's, thereby promoting decentralization
 - decentralized: payment is done between a client and server, with no third party needed
 - private: since the system is "pay as you go", you don't need to identify yourself to claim a long lived balance
 - no payment occurs on the blockchain, so there is no extra transactional load
 - one may mine with a beefy server, and use those credits from a phone, by reusing the client ID (at the cost of some privacy)
 - no barrier to entry: anyone may run a RPC node, and your expected revenue depends on how much work you do
 - Sybil resistant: if you run 1000 idle RPC nodes, you don't magically get more revenue
 - no large credit balance maintained on servers, so they have no incentive to exit scam
 - you can use any/many node(s), since there's little cost in switching servers
 - market based prices: competition between servers to lower costs
 - incentive for a distributed third party node system: if some public nodes are overused/slow, traffic can move to others
 - increases network security
 - helps counteract mining pools' share of the network hash rate
 - zero incentive for a payer to "double spend" since a reorg does not give any money back to the miner

And some disadvantages:
 - low power clients will have difficulty mining (but one can optionally mine in advance and/or with a faster machine)
 - payment is "random", so a server might go a long time without a block before getting one
 - a public node's overall expected payment may be small

Public nodes are expected to compete to find a suitable level for
cost of service.

The daemon can be set up this way to require payment for RPC services:

  monerod --rpc-payment-address 4xxxxxx \
    --rpc-payment-credits 250 --rpc-payment-difficulty 1000

These values are an example only.

The --rpc-payment-difficulty switch selects how hard each "share" should
be, similar to a mining pool. The higher the difficulty, the fewer
shares a client will find.
The --rpc-payment-credits switch selects how many credits are awarded
for each share a client finds.
Considering both options, clients will be awarded credits/difficulty
credits for every hash they calculate. For example, in the command line
above, 0.25 credits per hash. A client mining at 100 H/s will therefore
get an average of 25 credits per second.
For reference, in the current implementation, a credit is enough to
sync 20 blocks, so a 100 H/s client that's just starting to use Monero
and uses this daemon will be able to sync 500 blocks per second.

The wallet can be set to automatically mine if connected to a daemon
which requires payment for RPC usage. It will try to keep a balance
of 50000 credits, stopping mining when it's at this level, and starting
again as credits are spent. With the example above, a new client will
mine this much credits in about half an hour, and this target is enough
to sync 500000 blocks (currently about a third of the monero blockchain).

There are three new settings in the wallet:

 - credits-target: this is the amount of credits a wallet will try to
reach before stopping mining. The default of 0 means 50000 credits.

 - auto-mine-for-rpc-payment-threshold: this controls the minimum
credit rate which the wallet considers worth mining for. If the
daemon credits less than this ratio, the wallet will consider mining
to be not worth it. In the example above, the rate is 0.25

 - persistent-rpc-client-id: if set, this allows the wallet to reuse
a client id across runs. This means a public node can tell a wallet
that's connecting is the same as one that connected previously, but
allows a wallet to keep their credit balance from one run to the
other. Since the wallet only mines to keep a small credit balance,
this is not normally worth doing. However, someone may want to mine
on a fast server, and use that credit balance on a low power device
such as a phone. If left unset, a new client ID is generated at
each wallet start, for privacy reasons.

To mine and use a credit balance on two different devices, you can
use the --rpc-client-secret-key switch. A wallet's client secret key
can be found using the new rpc_payments command in the wallet.
Note: anyone knowing your RPC client secret key is able to use your
credit balance.

The wallet has a few new commands too:

 - start_mining_for_rpc: start mining to acquire more credits,
regardless of the auto mining settings
 - stop_mining_for_rpc: stop mining to acquire more credits
 - rpc_payments: display information about current credits with
the currently selected daemon

The node has an extra command:

 - rpc_payments: display information about clients and their
balances

The node will forget about any balance for clients which have
been inactive for 6 months. Balances carry over on node restart.
2019-10-25 09:34:38 +00:00
luigi1111
6b58d6248a
Merge pull request #5996
23ba69e epee: fix SSL server handshake, run_one() can block, use poll_one() (xiphon)
2019-10-22 10:26:31 -05:00
luigi1111
84ce43a239
Merge pull request #5966
be82c40 Support median block size > 4 GB (moneromooo-monero)
2019-10-22 10:08:32 -05:00
moneromooo-monero
be82c40703
Support median block size > 4 GB
add a 128/64 division routine so we can use a > 32 bit median block
size in calculations
2019-10-21 10:41:07 +00:00
xiphon
23ba69ec88 epee: fix SSL server handshake, run_one() can block, use poll_one() 2019-10-18 18:32:33 +00:00
luigi1111
da7a3dd17b
Merge pull request #5936
24473d7 build: fix MinGW GUI dependencies build (xiphon)
2019-10-08 14:46:09 -05:00
luigi1111
18da0fa240
Merge pull request #5918
4371791 epee: implement handshake timeout for SSL connections (xiphon)
2019-10-08 14:30:45 -05:00
luigi1111
c6430f9dd0
Merge pull request #5893
Coverity fixes [3a81639, 1bd962d, 2825f07, d099658, d46f701, cd57a10] (anonimal)
2019-09-30 18:43:48 -05:00
xiphon
24473d7584 build: fix MinGW GUI dependencies build 2019-09-26 01:43:00 +00:00
moneromooo-monero
89339551a2
epee: misc_log_ex.h can now be used in C code
use mfatal/merror/mwarning/minfo/mdebug/mtrace
2019-09-24 15:47:31 +00:00
luigi1111
cbec75ec31
Merge pull request #5892
ab2819a depends: attempt to fix readline (iDunk5400)
2019-09-24 10:34:59 -05:00
xiphon
4371791977 epee: implement handshake timeout for SSL connections 2019-09-17 22:21:16 +00:00
moneromooo-monero
32f725d32f
Properly format multiline logs
As a side effect, colouring on Windows should now work
regardless of version
2019-09-16 16:58:01 +00:00
iDunk5400
ab2819a365
depends: attempt to fix readline
Make readline actually compile, and make ncurses use existing terminfo data (if available).
2019-09-07 22:02:11 +02:00
anonimal
2825f07d95
epee: connection_basic: resolve CID 203916 (UNINIT_CTOR) 2019-09-06 23:18:00 +00:00
anonimal
3a816398b3
epee: connection_basic: resolve CID 203920 (UNINIT_CTOR) 2019-09-06 22:48:16 +00:00
luigi1111
23547e6ed6
Merge pull request #5536
1a367d6 simplewallet: lock console on inactivity (moneromooo-monero)
2019-09-04 09:18:38 -05:00
moneromooo-monero
1a367d6a22
simplewallet: lock console on inactivity 2019-08-28 19:01:48 +00:00
Thomas Winget
155475d971
Add IPv6 support
new cli options (RPC ones also apply to wallet):
  --p2p-bind-ipv6-address (default = "::")
  --p2p-bind-port-ipv6    (default same as ipv4 port for given nettype)
  --rpc-bind-ipv6-address (default = "::1")

  --p2p-use-ipv6          (default false)
  --rpc-use-ipv6          (default false)

  --p2p-require-ipv4      (default true, if ipv4 bind fails and this is
                           true, will not continue even if ipv6 bind
                           successful)
  --rpc-require-ipv4      (default true, description as above)

ipv6 addresses are to be specified as "[xx:xx:xx::xx:xx]:port" except
in the cases of the cli args for bind address.  For those the square
braces can be omitted.
2019-07-31 20:04:57 -04:00
luigi1111
e579fe4ae0
Merge pull request #5530
6abaaaa remove obsolete save_graph skeleton code (moneromooo-monero)
2019-07-24 14:07:29 -05:00
Lee Clagett
3b24b1d082 Added support for "noise" over I1P/Tor to mask Tx transmission. 2019-07-17 14:22:37 +00:00
Lee Clagett
bdfc63ae4d Add ref-counted buffer byte_slice. Currently used for sending TCP data. 2019-07-16 16:30:35 +00:00
moneromooo-monero
65c4004963
allow blocking whole subnets 2019-07-16 11:35:53 +00:00
moneromooo-monero
0564da5fdc
ensure no NULL is passed to memcpy
NULL is valid when size is 0, but memcpy uses nonnull attributes,
so let's not poke the bear
2019-06-14 08:47:29 +00:00
luigi1111
14723fc6e7
Merge pull request #5527
9a7a453 net_ssl: free certs after setting them up (moneromooo-monero)
2019-05-14 15:55:25 -05:00
luigi1111
1fc1c7318c
Merge pull request #5519
b8b957d cmake: fix incorrect hint for OPENSSL_ROOT_DIR (moneromooo-monero)
367bb80 mlog: default to not showing SSL errors (moneromooo-monero)
2019-05-14 15:52:32 -05:00
moneromooo-monero
6abaaaa994
remove obsolete save_graph skeleton code 2019-05-10 14:17:18 +00:00
moneromooo-monero
9a7a453f25
net_ssl: free certs after setting them up 2019-05-10 00:16:49 +00:00
moneromooo-monero
a62e072571
net_ssl: SSL config tweaks for compatibility and security
add two RSA based ciphers for Windows/depends compatibility
also enforce server cipher ordering
also set ECDH to auto because vtnerd says it is good :)

When built with the depends system, openssl does not include any
cipher on the current whitelist, so add this one, which fixes the
problem, and does seem sensible.
2019-05-07 10:01:42 +00:00
moneromooo-monero
367bb80ae7
mlog: default to not showing SSL errors 2019-05-06 07:38:52 +00:00
moneromooo-monero
5e0da6fb68
change SSL certificate fingerprint whitelisting from SHA1 to SHA-256
SHA1 is too close to bruteforceable
2019-04-26 11:37:15 +00:00
moneromooo-monero
7a9316ebef
serialization: set default log category 2019-04-21 09:26:25 +00:00
Lee Clagett
2e578b8214 Enabling daemon-rpc SSL now requires non-system CA verification
If `--daemon-ssl enabled` is set in the wallet, then a user certificate,
fingerprint, or onion/i2p address must be provided.
2019-04-07 13:02:43 -04:00
Lee Clagett
d58f368289 Require manual override for user chain certificates.
An override for the wallet to daemon connection is provided, but not for
other SSL contexts. The intent is to prevent users from supplying a
system CA as the "user" whitelisted certificate, which is less secure
since the key is controlled by a third party.
2019-04-07 00:44:37 -04:00
Lee Clagett
97cd1fa98d Only check top-level certificate against fingerprint list.
This allows "chain" certificates to be used with the fingerprint
whitelist option. A user can get a system-ca signature as backup while
clients explicitly whitelist the server certificate. The user specified
CA can also be combined with fingerprint whitelisting.
2019-04-07 00:44:37 -04:00
Lee Clagett
7c388fb358 Call use_certificate_chain_file instead of use_certificate_file
The former has the same behavior with single self signed certificates
while allowing the server to have separate short-term authentication
keys with long-term authorization keys.
2019-04-07 00:44:37 -04:00
Lee Clagett
eca0fea45a Perform RFC 2818 hostname verification in client SSL handshakes
If the verification mode is `system_ca`, clients will now do hostname
verification. Thus, only certificates from expected hostnames are
allowed when SSL is enabled. This can be overridden by forcible setting
the SSL mode to autodetect.

Clients will also send the hostname even when `system_ca` is not being
performed. This leaks possible metadata, but allows servers providing
multiple hostnames to respond with the correct certificate. One example
is cloudflare, which getmonero.org is currently using.
2019-04-07 00:44:37 -04:00
Lee Clagett
0416764cae Require server verification when SSL is enabled.
If SSL is "enabled" via command line without specifying a fingerprint or
certificate, the system CA list is checked for server verification and
_now_ fails the handshake if that check fails. This change was made to
remain consistent with standard SSL/TLS client behavior. This can still
be overridden by using the allow any certificate flag.

If the SSL behavior is autodetect, the system CA list is still checked
but a warning is logged if this fails. The stream is not rejected
because a re-connect will be attempted - its better to have an
unverified encrypted stream than an unverified + unencrypted stream.
2019-04-07 00:44:37 -04:00
Lee Clagett
96d602ac84 Add verify_fail_if_no_cert option for proper client authentication
Using `verify_peer` on server side requests a certificate from the
client. If no certificate is provided, the server silently accepts the
connection and rejects if the client sends an unexpected certificate.
Adding `verify_fail_if_no_cert` has no affect on client and for server
requires that the peer sends a certificate or fails the handshake. This
is the desired behavior when the user specifies a fingerprint or CA file.
2019-04-07 00:44:37 -04:00
Lee Clagett
21eb1b0725 Pass SSL arguments via one class and use shared_ptr instead of reference 2019-04-07 00:44:37 -04:00
Lee Clagett
f18a069fcc Do not require client certificate unless server has some whitelisted.
Currently a client must provide a certificate, even if the server is
configured to allow all certificates. This drops that requirement from
the client - unless the server is configured to use a CA file or
fingerprint(s) for verification - which is the standard behavior for SSL
servers.

The "system-wide" CA is not being used as a "fallback" to verify clients
before or after this patch.
2019-04-06 23:47:06 -04:00
Lee Clagett
a3b0284837 Change SSL certificate file list to OpenSSL builtin load_verify_location
Specifying SSL certificates for peer verification does an exact match,
making it a not-so-obvious alias for the fingerprints option. This
changes the checks to OpenSSL which loads concatenated certificate(s)
from a single file and does a certificate-authority (chain of trust)
check instead. There is no drop in security - a compromised exact match
fingerprint has the same worse case failure. There is increased security
in allowing separate long-term CA key and short-term SSL server keys.

This also removes loading of the system-default CA files if a custom
CA file or certificate fingerprint is specified.
2019-04-06 23:47:06 -04:00
Riccardo Spagni
17fefb8786
Merge pull request #5358
dffdccdc No longer use deprecated RSA_generate_key in favor of RSA_generate_key_ex (Martijn Otto)
2019-04-06 16:02:31 +02:00
Riccardo Spagni
1ed6441925
Merge pull request #5327
c23ea796 New interactive daemon command 'print_net_stats': Global traffic stats (rbrunner7)
2019-04-01 17:32:01 +02:00
Martijn Otto
dffdccdc9e
No longer use deprecated RSA_generate_key in favor of
RSA_generate_key_ex
2019-03-27 13:23:30 +01:00
Lee Clagett
7acfa9f3cc Added socks proxy (tor/i2pd/kovri) support to wallet 2019-03-25 01:35:13 +00:00
rbrunner7
c23ea7962d New interactive daemon command 'print_net_stats': Global traffic stats 2019-03-24 16:58:57 +01:00
Riccardo Spagni
5259dd7a14
Merge pull request #5259
9141a0a1 connection_basic: remove debug exception ^_^ (moneromooo-monero)
2019-03-21 14:49:09 +02:00
moneromooo-monero
17769db946
epee: fix build with boost 1.70.0
get_io_service was deprecated, and got removed
2019-03-21 11:02:02 +00:00
Riccardo Spagni
4c91eb23a0
Merge pull request #5061
1f2930ce Update 2019 copyright (binaryFate)
2019-03-17 17:49:30 +02:00