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[Group] Decryption optimization #14974

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merged 3 commits into from
Feb 10, 2022
Merged

[Group] Decryption optimization #14974

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8fce732
optimization
jepenven-silabs Feb 9, 2022
d088966
fix build
jepenven-silabs Feb 9, 2022
9db93da
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jepenven-silabs Feb 10, 2022
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optimization
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@jepenven-silabs
jepenven-silabs committed Feb 9, 2022
commit 8fce7326f2c793dfc3358fef8db4379ad8389fbc
5 changes: 5 additions & 0 deletions src/transport/SessionManager.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -630,6 +630,11 @@ void SessionManager::SecureGroupMessageDispatch(const PacketHeader & packetHeade
bool decrypted = false;
while (!decrypted && iter->Next(groupContext))
{
// Optimization to reduce number of decryption attempt
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if (groupId != groupContext.group_id)
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{
continue;
}
msgCopy = msg.CloneData();
decrypted =
(CHIP_NO_ERROR == SecureMessageCodec::Decrypt(CryptoContext(groupContext.key), payloadHeader, packetHeader, msgCopy));
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