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@ -431,7 +431,8 @@ namespace garlic
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}
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GarlicDestination::GarlicDestination (): m_NumTags (32), // 32 tags by default
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m_PayloadBuffer (nullptr), m_NumRatchetInboundTags (0) // 0 means standard
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m_PayloadBuffer (nullptr), m_NumRatchetInboundTags (0), // 0 means standard
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m_NumUsedECIESx25519Tags (0)
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{
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}
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@ -599,6 +600,7 @@ namespace garlic
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LogPrint (eLogError, "Garlic: Can't handle ECIES-X25519-AEAD-Ratchet message");
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m_ECIESx25519Tags.erase (it);
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}
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m_NumUsedECIESx25519Tags++;
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return true;
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}
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return false;
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@ -883,24 +885,41 @@ namespace garlic
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}
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numExpiredTags = 0;
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for (auto it = m_ECIESx25519Tags.begin (); it != m_ECIESx25519Tags.end ();)
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if (m_NumUsedECIESx25519Tags > ECIESX25519_TAGSET_MAX_NUM_TAGS) // too many used tags
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{
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if (!it->second.tagset)
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{
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// delete used tag
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it = m_ECIESx25519Tags.erase (it);
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continue;
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}
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if (it->second.tagset->IsExpired (ts) || it->second.tagset->IsIndexExpired (it->second.index))
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{
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it->second.tagset->DeleteSymmKey (it->second.index);
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it = m_ECIESx25519Tags.erase (it);
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numExpiredTags++;
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}
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else
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std::unordered_map<uint64_t, ECIESX25519AEADRatchetIndexTagset> oldTags;
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std::swap (m_ECIESx25519Tags, oldTags); // re-create
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for (auto& it: oldTags)
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if (it.second.tagset)
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{
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if (it.second.tagset->IsExpired (ts) || it.second.tagset->IsIndexExpired (it.second.index))
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{
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it.second.tagset->DeleteSymmKey (it.second.index);
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numExpiredTags++;
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}
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else if (it.second.tagset->IsSessionTerminated())
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numExpiredTags++;
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else
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m_ECIESx25519Tags.emplace (it);
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}
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}
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else
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{
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for (auto it = m_ECIESx25519Tags.begin (); it != m_ECIESx25519Tags.end ();)
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{
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auto session = it->second.tagset->GetSession ();
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if (!session || session->IsTerminated())
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if (!it->second.tagset)
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{
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// delete used tag
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it = m_ECIESx25519Tags.erase (it);
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continue;
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}
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if (it->second.tagset->IsExpired (ts) || it->second.tagset->IsIndexExpired (it->second.index))
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{
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it->second.tagset->DeleteSymmKey (it->second.index);
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it = m_ECIESx25519Tags.erase (it);
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numExpiredTags++;
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}
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else if (it->second.tagset->IsSessionTerminated())
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{
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it = m_ECIESx25519Tags.erase (it);
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numExpiredTags++;
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@ -908,7 +927,8 @@ namespace garlic
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else
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++it;
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}
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}
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}
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m_NumUsedECIESx25519Tags = 0;
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if (numExpiredTags > 0)
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LogPrint (eLogDebug, "Garlic: ", numExpiredTags, " ECIESx25519 tags expired for ", GetIdentHash().ToBase64 ());
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if (m_LastTagset && m_LastTagset->IsExpired (ts))
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