2a8206b7dd
Doing this correctly means going "back" to proto2 for SessionRecords, because we need to distinguish between "0" and "absent" in the serialized protobuf data. (Note that we can do this independently of SignalClient properly making this distinction because the proto3 implementation we're using, prost, will omit scalar proto3 fields whose values match their defaults.)
63 lines
1.6 KiB
Protocol Buffer
63 lines
1.6 KiB
Protocol Buffer
//
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// Copyright (c) 2020 Open Whisper Systems. All rights reserved.
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//
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syntax = "proto2";
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// iOS - package name determines class prefix
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package SessionRecordProtos;
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message SessionStructure {
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message Chain {
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optional bytes senderRatchetKey = 1;
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optional bytes senderRatchetKeyPrivate = 2;
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message ChainKey {
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optional uint32 index = 1;
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optional bytes key = 2;
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}
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optional ChainKey chainKey = 3;
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message MessageKey {
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optional uint32 index = 1;
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optional bytes cipherKey = 2;
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optional bytes macKey = 3;
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optional bytes iv = 4;
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}
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repeated MessageKey messageKeys = 4;
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}
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message PendingPreKey {
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optional uint32 preKeyId = 1;
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optional int32 signedPreKeyId = 3;
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optional bytes baseKey = 2;
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}
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optional uint32 sessionVersion = 1;
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optional bytes localIdentityPublic = 2;
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optional bytes remoteIdentityPublic = 3;
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optional bytes rootKey = 4;
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optional uint32 previousCounter = 5;
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optional Chain senderChain = 6;
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// The order is significant; keys at the end are "older" and will get trimmed.
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repeated Chain receiverChains = 7;
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optional PendingPreKey pendingPreKey = 9;
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optional uint32 remoteRegistrationId = 10;
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optional uint32 localRegistrationId = 11;
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optional bool needsRefresh = 12;
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optional bytes aliceBaseKey = 13;
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}
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message RecordStructure {
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optional SessionStructure currentSession = 1;
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// The order is significant; sessions at the end are "older" and will get trimmed.
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repeated SessionStructure previousSessions = 2;
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}
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