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keep sending reverse key until tag received on new tagset

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orignal 2024-08-05 14:44:10 -04:00
parent 8e1fb8ca9f
commit 3c69e0b2af
1 changed files with 3 additions and 2 deletions
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5
libi2pd/ECIESX25519AEADRatchetSession.cpp
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@ -398,7 +398,6 @@ namespace garlic
{ {
uint16_t keyID = bufbe16toh (buf); buf += 2; // keyID uint16_t keyID = bufbe16toh (buf); buf += 2; // keyID
bool newKey = flag & ECIESX25519_NEXT_KEY_REQUEST_REVERSE_KEY_FLAG; bool newKey = flag & ECIESX25519_NEXT_KEY_REQUEST_REVERSE_KEY_FLAG;
m_SendReverseKey = true;
if (!m_NextReceiveRatchet) if (!m_NextReceiveRatchet)
m_NextReceiveRatchet.reset (new DHRatchet ()); m_NextReceiveRatchet.reset (new DHRatchet ());
else else
@ -410,6 +409,7 @@ namespace garlic
} }
m_NextReceiveRatchet->keyID = keyID; m_NextReceiveRatchet->keyID = keyID;
} }
m_SendReverseKey = true;
int tagsetID = 2*keyID; int tagsetID = 2*keyID;
if (newKey) if (newKey)
{ {
@ -781,6 +781,8 @@ namespace garlic
[[fallthrough]]; [[fallthrough]];
#endif #endif
case eSessionStateEstablished: case eSessionStateEstablished:
if (m_SendReverseKey && receiveTagset->GetTagSetID () == 2*m_NextReceiveRatchet->keyID)
m_SendReverseKey = false; // tag received on new tagset
if (receiveTagset->IsNS ()) if (receiveTagset->IsNS ())
{ {
// our of sequence NSR // our of sequence NSR
@ -978,7 +980,6 @@ namespace garlic
memcpy (payload + offset, m_NextReceiveRatchet->key->GetPublicKey (), 32); memcpy (payload + offset, m_NextReceiveRatchet->key->GetPublicKey (), 32);
offset += 32; // public key offset += 32; // public key
} }
m_SendReverseKey = false;
} }
if (m_SendForwardKey) if (m_SendForwardKey)
{ {