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Add key roatation limit to config.json

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This commit is contained in:
Timo K.
2026-08-17 11:16:11 +02:00
parent 0aa9d94826
commit 9857ed53e3
5 changed files with 48 additions and 16 deletions
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3
config/config.sample.json
View File

@@ -18,6 +18,7 @@
"membership_event_expiry_ms": 180000000,
"delayed_leave_event_delay_ms": 18000,
"delayed_leave_event_restart_ms": 4000,
"network_error_retry_ms": 100
"network_error_retry_ms": 100,
"key_rotation_participant_limit": 30
}
}

2
package.json
View File

@@ -96,7 +96,7 @@
"livekit-client": "^2.18.1",
"lodash-es": "^4.17.21",
"loglevel": "^1.9.1",
"matrix-js-sdk": "github:matrix-org/matrix-js-sdk#develop",
"matrix-js-sdk": "github:matrix-org/matrix-js-sdk#toger5/add-key-rotation-participant-size",
"matrix-widget-api": "^1.18.0",
"node-stdlib-browser": "^1.3.1",
"normalize.css": "^8.0.1",

44
pnpm-lock.yaml generated
View File

@@ -191,8 +191,8 @@ importers:
specifier: ^1.9.1
version: 1.9.2
matrix-js-sdk:
specifier: github:matrix-org/matrix-js-sdk#develop
version: https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/178dc6528ebc6a15e2f6fab38410127f16b500d0
specifier: github:matrix-org/matrix-js-sdk#toger5/add-key-rotation-participant-size
version: https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/f4a278c571bcb4e8e553ef031488ecdabe4e0ede
matrix-widget-api:
specifier: ^1.18.0
version: 1.18.0
@@ -1191,8 +1191,8 @@ packages:
'@types/dom-mediacapture-transform': ^0.1.9
livekit-client: ^1.12.0 || ^2.1.0
'@matrix-org/matrix-sdk-crypto-wasm@18.4.0':
resolution: {integrity: sha512-osxkU1DQ+05+anGHapjWyvZqdHUb94Id37gy54mCKn1Cq/D7iGT5oEUEhjp4oTnCLo4TOtI6ULJ/LHsapaIptQ==}
'@matrix-org/matrix-sdk-crypto-wasm@18.5.0':
resolution: {integrity: sha512-E826Hy1rG26LanPjtSsOiVRcVoHfSgPgj2r2Xsb5RPScpaKi9XJADQ0u3dNjRCitZPX4oyLNl1FDd5AfDlmIwQ==}
engines: {node: '>= 18'}
'@mdx-js/react@3.1.1':
@@ -3664,8 +3664,8 @@ packages:
constants-browserify@1.0.0:
resolution: {integrity: sha512-xFxOwqIzR/e1k1gLiWEophSCMqXcwVHIH7akf7b/vxcUeGunlj3hvZaaqxwHsTgn+IndtkQJgSztIDWeumWJDQ==}
content-type@2.0.0:
resolution: {integrity: sha512-j/O/d7GcZCyNl7/hwZAb606rzqkyvaDctLmckbxLzHvFBzTJHuGEdodATcP3yIRoDrLHkIATJuvzbFlp/ki2cQ==}
content-type@2.1.0:
resolution: {integrity: sha512-mj7UPXE0jaqaOsukNZRUEfEi2AcL7C/vwmwcHV0O97eO1E1pxBZuyjlZrx5seTaNBg1U6+o35wpa35Qfcc+7ag==}
engines: {node: '>=18'}
convert-source-map@2.0.0:
@@ -4516,6 +4516,10 @@ packages:
jsonfile@6.2.0:
resolution: {integrity: sha512-FGuPw30AdOIUTRMC2OMRtQV+jkVj2cfPqSeWXv1NEAJ1qZ5zb1X6z1mFhbfOB/iy3ssJCD+3KuZ8r8C3uVFlAg==}
jwt-decode@4.0.0:
resolution: {integrity: sha512-+KJGIyHgkGuIq3IEBNftfhW/LfWhXUIY6OmyVWjliu5KH1y0fw7VQ8YndE2O4qZdMSd9SqbnC8GOcZEy0Om7sA==}
engines: {node: '>=18'}
keyv@4.5.4:
resolution: {integrity: sha512-oxVHkHR/EJf2CNXnWxRLW6mg7JyCCUcG0DtEGmL2ctUo1PNTin1PUil+r/+4r5MpVgC/fn1kjsx7mjSujKqIpw==}
@@ -4679,9 +4683,9 @@ packages:
matrix-events-sdk@0.0.1:
resolution: {integrity: sha512-1QEOsXO+bhyCroIe2/A5OwaxHvBm7EsSQ46DEDn8RBIfQwN5HWBpFvyWWR4QY0KHPPnnJdI99wgRiAl7Ad5qaA==}
matrix-js-sdk@https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/178dc6528ebc6a15e2f6fab38410127f16b500d0:
resolution: {gitHosted: true, integrity: sha512-UmlkoXs9VMZvNaDeQqBb2k+gLifnIqEZc5cxrLeEwdYEDakQLbRqrFtmvIp4ipUCjdIPkCgtzb7QLlpPBLAwqA==, tarball: https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/178dc6528ebc6a15e2f6fab38410127f16b500d0}
version: 42.1.0
matrix-js-sdk@https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/f4a278c571bcb4e8e553ef031488ecdabe4e0ede:
resolution: {gitHosted: true, integrity: sha512-6iaM5Uyr063LCbDcjhDXI1qf5X8q270dMl0iLNb6S/mcOucqdKURw0ySWM6PWHAnbMw2rdkiTx3Mp37+J9F/pg==, tarball: https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/f4a278c571bcb4e8e553ef031488ecdabe4e0ede}
version: 41.8.0
engines: {node: '>=22.0.0'}
matrix-widget-api@1.18.0:
@@ -4823,6 +4827,10 @@ packages:
resolution: {integrity: sha512-4a+OsYv9UktOJKE+l1A4OufDgdRF9PifWj+tJnHURo/P+WOxpG4GzUFL9qCalmWauao6ogiG+QvnCovwPoyAWA==}
engines: {node: '>=12.20.0'}
oidc-client-ts@3.5.0:
resolution: {integrity: sha512-l2q8l9CTCTOlbX+AnK4p3M+4CEpKpyQhle6blQkdFhm0IsBqsxm15bYaSa11G7pWdsYr6epdsRZxJpCyCRbT8A==}
engines: {node: '>=18'}
once@1.4.0:
resolution: {integrity: sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==}
@@ -7096,7 +7104,7 @@ snapshots:
'@types/dom-mediacapture-transform': 0.1.11
livekit-client: 2.21.0(@types/dom-mediacapture-record@1.0.22)
'@matrix-org/matrix-sdk-crypto-wasm@18.4.0': {}
'@matrix-org/matrix-sdk-crypto-wasm@18.5.0': {}
'@mdx-js/react@3.1.1(@types/react@19.2.17)(react@19.2.8)':
dependencies:
@@ -9189,7 +9197,7 @@ snapshots:
constants-browserify@1.0.0: {}
content-type@2.0.0: {}
content-type@2.1.0: {}
convert-source-map@2.0.0: {}
@@ -10116,6 +10124,8 @@ snapshots:
optionalDependencies:
graceful-fs: 4.2.11
jwt-decode@4.0.0: {}
keyv@4.5.4:
dependencies:
json-buffer: 3.0.1
@@ -10269,16 +10279,18 @@ snapshots:
matrix-events-sdk@0.0.1: {}
matrix-js-sdk@https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/178dc6528ebc6a15e2f6fab38410127f16b500d0:
matrix-js-sdk@https://codeload.github.com/matrix-org/matrix-js-sdk/tar.gz/f4a278c571bcb4e8e553ef031488ecdabe4e0ede:
dependencies:
'@babel/runtime': 8.0.0
'@matrix-org/matrix-sdk-crypto-wasm': 18.4.0
'@matrix-org/matrix-sdk-crypto-wasm': 18.5.0
another-json: 0.2.0
bs58: 6.0.0
content-type: 2.0.0
content-type: 2.1.0
jwt-decode: 4.0.0
loglevel: 1.9.2
matrix-events-sdk: 0.0.1
matrix-widget-api: 1.18.0
oidc-client-ts: 3.5.0
p-retry: 8.0.0
sdp-transform: 3.0.0
unhomoglyph: 1.0.6
@@ -10428,6 +10440,10 @@ snapshots:
obug@2.1.4: {}
oidc-client-ts@3.5.0:
dependencies:
jwt-decode: 4.0.0
once@1.4.0:
dependencies:
wrappy: 1.0.2

13
src/config/ConfigOptions.ts
View File

@@ -229,6 +229,18 @@ export interface ConfigOptions {
* This is what goes into the m.rtc.member event expiry field and is typically set to a number of hours.
*/
membership_event_expiry_ms?: number;
/**
* The number of participants in the session at which the media encryption key will no longer
* be rotated.
*
* Rotating a key requires sending it to every participant device, so in large sessions the
* cost of rotating on every join/leave becomes prohibitive. At this limit the current key is
* kept and distributed to new joiners; no new keys are generated for joiners/leavers.
*
* Defaults to the js-sdk default (30).
*/
key_rotation_participant_limit?: number;
};
}
@@ -262,6 +274,7 @@ export interface ResolvedConfigOptions extends ConfigOptions {
delayed_leave_event_restart_ms?: number;
network_error_retry_ms: number;
membership_event_expiry_ms?: number;
key_rotation_participant_limit?: number;
};
}

2
src/state/CallViewModel/localMember/LocalMember.ts
View File

@@ -908,6 +908,8 @@ export function enterRTCSession(
makeKeyDelay: matrixRtcSessionConfig?.wait_for_key_rotation_ms,
membershipEventExpiryMs:
matrixRtcSessionConfig?.membership_event_expiry_ms,
keyRotationParticipantLimit:
matrixRtcSessionConfig?.key_rotation_participant_limit,
unstableSendStickyEvents: matrixRTCMode === MatrixRTCMode.Matrix_2_0,
maximumNetworkErrorRetryCount: maximumNetworkErrorRetryCount,
},