diff --git a/02-peer-protocol.md b/02-peer-protocol.md index 009555d0c..ba78a25fc 100644 --- a/02-peer-protocol.md +++ b/02-peer-protocol.md @@ -2339,6 +2339,12 @@ To supply the preimage: * [`channel_id`:`channel_id`] * [`u64`:`id`] * [`32*byte`:`payment_preimage`] +1. `tlv_stream`: `update_fulfill_htlc_tlvs` +2. types: + 1. type: 1 (`attribution_data`) + 2. data: + * [`20*u32`:`htlc_hold_times`] + * [`210*sha256[..4]`:`truncated_hmacs`] For a timed out or route-failed HTLC: @@ -2348,6 +2354,12 @@ For a timed out or route-failed HTLC: * [`u64`:`id`] * [`u16`:`len`] * [`len*byte`:`reason`] +1. `tlv_stream`: `update_fail_htlc_tlvs` +2. types: + 1. type: 1 (`attribution_data`) + 2. data: + * [`20*u32`:`htlc_hold_times`] + * [`210*sha256[..4]`:`truncated_hmacs`] The `reason` field is an opaque encrypted blob for the benefit of the original HTLC initiator, as defined in [BOLT #4](04-onion-routing.md); @@ -2386,6 +2398,9 @@ A node: `invalid_onion_blinding` failure code for any local or downstream errors. - SHOULD use the `sha256_of_onion` of the onion it received. - MAY use an all zero `sha256_of_onion`. + - When supporting `option_attribution_data`: + - if `path_key` is not set in the incoming `update_add_htlc`: + - MUST initialize `attribution_data` and include it in `update_fail_htlc` and `update_fulfill_htlc`. See [BOLT04](04-onion-routing.md). A receiving node: - if the `id` does not correspond to an HTLC in its current commitment transaction: diff --git a/04-onion-routing.md b/04-onion-routing.md index d61542c6f..718446e79 100644 --- a/04-onion-routing.md +++ b/04-onion-routing.md @@ -579,6 +579,9 @@ should add a random delay before forwarding the error. Failures are likely to be probing attempts and message timing may help the attacker infer its distance to the final recipient. +Note that nodes in the blinded route return failures through `update_fail_malformed_htlc` and therefore do not and can +not provide timing information via attribution data to the sender. + The `padding` field can be used to ensure that all `encrypted_recipient_data` have the same length. It's particularly useful when adding dummy hops at the end of a blinded route, to prevent the sender from figuring out which node is the final @@ -1021,7 +1024,7 @@ any further and thus need not extract an HMAC either. # Returning Errors -The onion routing protocol includes a simple mechanism for returning encrypted +The onion routing protocol includes a mechanism for returning encrypted error messages to the origin node. The returned error messages may be failures reported by any hop, including the final node. @@ -1031,10 +1034,13 @@ Note that these error messages are not reliable, as they are not placed on-chain due to the possibility of hop failure. Intermediate hops store the shared secret from the forward path and reuse it to -obfuscate any corresponding return packet during each hop. +authenticate and obfuscate any corresponding return packet during each hop. In addition, each node locally stores data regarding its own sending peer in the route, so it knows where to return-forward any eventual return packets. -The node generating the error message (_erring node_) builds a return packet + +## Erring node + +The node generating the error message builds a _return packet_ consisting of the following fields: 1. data: @@ -1052,32 +1058,63 @@ The erring node then generates a new key, using the key type `ammag`. This key is then used to generate a pseudo-random stream, which is in turn applied to the packet using `XOR`. -The obfuscation step is repeated by every hop along the return path. -Upon receiving a return packet, each hop generates its `ammag`, generates the -pseudo-random byte stream, and applies the result to the return packet before -return-forwarding it. - -The origin node is able to detect that it's the intended final recipient of the -return message, because of course, it was the originator of the corresponding -forward packet. -When an origin node receives an error message matching a transfer it initiated -(i.e. it cannot return-forward the error any further) it generates the `ammag` -and `um` keys for each hop in the route. -It then iteratively decrypts the error message, using each hop's `ammag` -key, and computes the HMAC, using each hop's `um` key. -The origin node can detect the sender of the error message by matching the -`hmac` field with the computed HMAC. - -The association between the forward and return packets is handled outside of -this onion routing protocol, e.g. via association with an HTLC in a payment -channel. - Error handling for HTLCs with `path_key` is particularly fraught, since differences in implementations (or versions) may be leveraged to de-anonymize elements of the blinded path. Thus the decision turn every error into `invalid_onion_blinding` which will be converted to a normal onion error by the introduction point. +### Initialization of `attribution_data` + +For the layout of `attribution data`, see [Removing an HTLC: `update_fulfill_htlc`, `update_fail_htlc`, and +`update_fail_malformed_htlc`](02-peer-protocol.md#removing-an-htlc-update_fulfill_htlc-update_fail_htlc-and-update_fail_malformed_htlc). + +The `htlc_hold_times` field specifies the htlc hold time for each hop in units of 100 milliseconds. For example, a value +of 3 represents 300 ms. Nodes along the path that lack accurate timing information may report a value of zero. + +The erring node puts its hold time at the start of this array and zeroes out the rest. The size of the field is based on +the maximum supported number of hops in a route (20). + +The field `truncated_hmacs` contains truncated authentication codes series for each hop, with the same `um` key that is +used for `hmac` in the return packet. Regular 32 byte HMACs are truncated to the first 4 bytes to save space. + +In theory this truncation makes it possible for malicious nodes to guess the HMAC. However, game theory is against them +because a wrong guess will get them penalized. + +The size of the field is based on the maximum number of hops in a route (20) and the truncated HMAC size (4 bytes). Each +hop adds 20 HMACs, one for each possible position that the hop could be at in the path. This is necessary because only +the sender knows the position of each hop in the path. + +It is not required to store all 20 * 20 = 400 HMACs. The node in position 0 needs to store an HMAC for every one of the +20 positions. For the node in position 1, the maximum remaining route length is only 19. For that position just 19 HMACs +need to be kept, and so on. This makes for a total number of HMACs of 20+19+18+...+1 = 210 HMACs. + +The layout of the `hmacs` field is shown below. The actual format is much longer, but for readability the format is +described as if the maximum route length would be just three hops. + +`hmac_0_2` | `hmac_0_1`| `hmac_0_0`| `hmac_1_1`| `hmac_1_0`| `hmac_2_0` + +`hmac_x_y` is the hmac added by node `x` (counted from the node that is currently handling the failure message) assuming +that this node is `y` hops away from the erring node. + +Each HMAC is computed from the combination of the following elements, concatenated in the specified order. + +* The return packet before applying the pseudo-random byte stream. + +* The concatenation of the first `y+1` hold times in `htlc_hold_times`. For example, `hmac_0_2` would cover + all three hold times. + +* The concatenation of `y` downstream hmacs that correspond to downstream node positions relative to `x`. For example, + `hmac_0_2` would cover `hmac_1_1` and `hmac_2_0`. + +The erring node stores its 20 HMACs at the start of the array and zeroes out the rest. Strictly speaking the erring node +would only need to add the single `hmac_0_0` here, because there is no downstream data to cover. However, for +verification efficiency at the origin node, we still require all HMACs to be calculated. The redundant HMACs will cover +portions of the zero-initialized data. + +Finally a new key is generated, using the key type `ammagext`. This key is then used to generate a pseudo-random stream, +which is in turn applied to the `attribution_data` field using `XOR`. + ### Requirements The _erring node_: @@ -1085,6 +1122,100 @@ The _erring node_: - SHOULD set `pad` such that the `failure_len` plus `pad_len` is equal to 256. Deviating from this may cause older nodes to be unable to parse the return message. + - if `option_attribution_data` is advertised: + - if `path_key` is not set in the incoming `update_add_htlc`: + - MUST initialize `attribution_data` and include it in `update_fail_htlc` + +## Intermediate nodes + +### Transformation of the return packet + +Generate the node's `ammag` key, generate the pseudo-random byte streams, and apply the result to obfuscate the return +packet. This is then stored as the `reason` field of the `update_htlc_fail` message. + + This obfuscation step is identical to the obfuscation steps that the erring node carries out. + +### Transformation of `attribution_data` + +* Shift all existing hold times to the right (4 bytes). + +* Shift and prune all existing HMACs. + + At each step backwards, one HMAC for every hop can be pruned. When HMACs for all 20 positions are present, and it + turns out that there is another hop upstream, each existing HMAC that now corresponds to position 21 due to the + preceding hop becomes obsolete. + + For the simplified three-hop layout above, the shift/prune operation would apply a transformation that results in: + + `-` | `-` | `-` | `hmac_0'_1` | `hmac_0'_0` | `hmac_1'_0` + + The former `hmac_x'_y` now becomes `hmac_x+1_y`. The left-most HMAC for + each hop is discarded. + +### Update of `attribution_data` + +* Put the node's hold time at the start of `htlc_hold_times`. The shift operation above has opened up a slot for that. + +* Calculate its own 20 truncated HMACs and put them at the start of `hmacs` in the + newly opened slots. + +* Generate the node's `ammagext` key, generate the pseudo-random byte stream, and apply the result to obfuscate the + `attribution_data` field. This obfuscation step is identical to the obfuscation steps that the erring node carries out. + +### Requirements + +- if `option_attribution_data` is advertised: + - if `path_key` is not set in the incoming `update_add_htlc`: + - if `attribution_data` is received from downstream: + - MUST transform `attribution_data` as described above + - otherwise: + - MUST instantiate an all-zeroes `attribution_data` block + - MUST update `attribution_data` as described above +- all nodes: + - MUST transform the return packet as described above. + - MUST return-forward the `update_htlc_fail` message + +## Origin node + +The origin node is able to detect that it's the intended final recipient of the return message, because of course, it +was the originator of the corresponding forward packet. When an origin node receives an `update_htlc_fail` message +matching a transfer it initiated (i.e. it cannot return-forward the error any further) it generates the `ammag`, +`ammagext` and `um` keys for each hop in the route. + +It then iteratively decrypts the message, using each hop's `ammag` and `ammagext` keys. At each hop, the following steps +are carried out: + +For origin nodes supporting `option_attribution_data`: + +* Verify the HMAC in `attribution_data` that corresponds to the hop's position in the path using the hop's `um` key. If + the HMAC is invalid, processing of the message can stop and the node should penalize this hop. This is what + makes the failure 'attributable'. + + Because HMACs cover all data including HMACs added by downstream nodes, it is not possible for a malicious node to + tamper with the message without revealing themselves. Blame is still only assignable to a pair of nodes though, + because it is impossible to know whether sender or receiver modified the message. This is true for other failure cases + in Lightning too. + + When not every path node supports `option_attribution_data`, the origin node will still have attribution data up to the first node + downstream without support. + +* Record the reported htlc hold time for this hop. + + The origin node can use this information to score nodes on latency. When a zero hold time is reported, the origin node + should distribute any potential latency penalty across multiple nodes. This encourages path nodes to provide timing + data to avoid being held responsible for the high latency of other nodes. + +For all nodes: + +* Compute the HMAC for the return packet, using the hop's `um` key. + +* When the computed HMAC matches `hmac` in the return packet, the origin node will know that the current hop is the sender of + the failure. They can then parse `failuremsg`. + +The association between the forward and return packets is handled outside of this onion routing protocol, e.g. via +association with an HTLC in a payment channel. + +### Requirements The _origin node_: - once the return message has been decrypted: @@ -1092,6 +1223,8 @@ The _origin node_: - SHOULD continue decrypting, until the loop has been repeated 27 times (maximum route length of tlv payload type). - SHOULD use constant `ammag` and `um` keys to obfuscate the route length. + - When the failure source cannot be identified from the return packet AND `attribution_data` is present: + - SHOULD use `attribution_data` to identify the failure source ### Rationale @@ -1450,6 +1583,12 @@ The _origin node_: - MAY use the data specified in the various failure types for debugging purposes. +# Hold times for successful payments + +The `update_fulfill_htlc` message contains an optional `attribution_data` field, similar to the one used in the failure +case described above. The only difference is that there is no failure message that is covered by the HMACs. With +attribution data, the sender can obtain hold times as reported and committed to by each hop along the payment path. + # Onion Messages Onion messages allow peers to use existing connections to query for @@ -1632,10 +1771,19 @@ deployed by Lightning implementations. The test vectors use the following parameters: pubkey[0] = 0x02eec7245d6b7d2ccb30380bfbe2a3648cd7a942653f5aa340edcea1f283686619 + htlc_hold_time[0] = 1 + pubkey[1] = 0x0324653eac434488002cc06bbfb7f10fe18991e35f9fe4302dbea6d2353dc0ab1c + htlc_hold_time[1] = 2 + pubkey[2] = 0x027f31ebc5462c1fdce1b737ecff52d37d75dea43ce11c74d25aa297165faa2007 + htlc_hold_time[2] = 3 + pubkey[3] = 0x032c0b7cf95324a07d05398b240174dc0c2be444d96b159aa6c7f7b1e668680991 + htlc_hold_time[3] = 4 + pubkey[4] = 0x02edabbd16b41c8371b92ef2f04c1185b4f03b6dcd52ba9b78d9d7c89c8f221145 + htlc_hold_time[4] = 5 nhops = 5 sessionkey = 0x4141414141414141414141414141414141414141414141414141414141414141 @@ -1656,31 +1804,60 @@ The following is an in-depth trace of an example of error message creation: payload = 0140400f0000000000000064000c3500fd84d1fd012c80808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808080808002c00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 um_key = 4da7f2923edce6c2d85987d1d9fa6d88023e6c3a9c3d20f07d3b10b61a78d646 raw_error_packet = 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 - # forwarding error packet + + # forwarding error packet shared_secret = b5756b9b542727dbafc6765a49488b023a725d631af688fc031217e90770c328 ammag_key = 2f36bb8822e1f0d04c27b7d8bb7d7dd586e032a3218b8d414afbba6f169a4d68 stream = 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 error packet for node 4: 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 - # forwarding error packet + attribution data for node 4: 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 + + # forwarding error packet shared_secret = 21e13c2d7cfe7e18836df50872466117a295783ab8aab0e7ecc8c725503ad02d ammag_key = cd9ac0e09064f039fa43a31dea05f5fe5f6443d40a98be4071af4a9d704be5ad stream = 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 error packet for node 3: 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 - # forwarding error packet + attribution data for node 3: 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 + + # forwarding error packet shared_secret = 3a6b412548762f0dbccce5c7ae7bb8147d1caf9b5471c34120b30bc9c04891cc ammag_key = 1bf08df8628d452141d56adfd1b25c1530d7921c23cecfc749ac03a9b694b0d3 stream = 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 error packet for node 2: 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 - # forwarding error packet + attribution data for node 2: 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 + + # forwarding error packet shared_secret = a6519e98832a0b179f62123b3567c106db99ee37bef036e783263602f3488fae ammag_key = 59ee5867c5c151daa31e36ee42530f429c433836286e63744f2020b980302564 stream = 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 error packet for node 1: 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 - # forwarding error packet + attribution data for node 1: 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 + + # forwarding error packet shared_secret = 53eb63ea8a3fec3b3cd433b85cd62a4b145e1dda09391b348c4e1cd36a03ea66 ammag_key = 3761ba4d3e726d8abb16cba5950ee976b84937b61b7ad09e741724d7dee12eb5 stream = 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 error packet for node 0: 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 + attribution data for node 0: 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 + +## Returning success + +A successful payment using the parameters above would result in the following attribution data values: + +attribution data for node 4: 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 + +attribution data for node 3: 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+ +attribution data for node 2: 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# References diff --git a/09-features.md b/09-features.md index e7a8cbed6..cbea63ca3 100644 --- a/09-features.md +++ b/09-features.md @@ -47,6 +47,7 @@ The Context column decodes as follows: | 26/27 | `option_shutdown_anysegwit` | Future segwit versions allowed in `shutdown` | IN | | [BOLT #2][bolt02-shutdown] | | 28/29 | `option_dual_fund` | Use v2 of channel open, enables dual funding | IN | | [BOLT #2](02-peer-protocol.md) | | 34/35 | `option_quiesce` | Support for `stfu` message | IN | | [BOLT #2][bolt02-quiescence] | +| 36/37 | `option_attribution_data` | Can generate/relay attribution data in `update_fail_htlc` and `update_fulfill_htlc` | IN9 | | [BOLT #4][bolt04-attribution-data] | | 38/39 | `option_onion_messages` | Can forward onion messages | IN | | [BOLT #7](04-onion-routing.md#onion-messages) | | 42/43 | `option_provide_storage` | Can store other nodes' encrypted backup data | IN | | [BOLT #1](01-messaging.md#peer-storage) | | 44/45 | `option_channel_type` | ASSUMED | IN | | | @@ -103,9 +104,10 @@ This work is licensed under a [Creative Commons Attribution 4.0 International Li [bolt02-shutdown]: 02-peer-protocol.md#closing-initiation-shutdown [bolt02-quiescence]: 02-peer-protocol.md#channel-quiescence [bolt02-channel-ready]: 02-peer-protocol.md#the-channel_ready-message -[bolt04]: 04-onion-routing.md +[bolt04-attribution-data]: 04-onion-routing.md#returning-errors [bolt07-sync]: 07-routing-gossip.md#initial-sync [bolt07-query]: 07-routing-gossip.md#query-messages [bolt04-mpp]: 04-onion-routing.md#basic-multi-part-payments [bolt04-route-blinding]: 04-onion-routing.md#route-blinding +[bolt04-attributable-errors]: 04-onion-routing.md [ml-sighash-single-harmful]: https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-September/002796.html