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use same buffer for input and output for AEAD/Chacha20/Poly1305

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orignal
2018-08-09 15:47:02 -04:00
parent 88e87d589b
commit f7e4afc282
2 changed files with 16 additions and 8 deletions
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6
libi2pd/NTCP2.cpp
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@@ -697,11 +697,10 @@ namespace transport
i2p::transport::transports.UpdateReceivedBytes (bytes_transferred);
uint8_t nonce[12];
CreateNonce (m_ReceiveSequenceNumber, nonce); m_ReceiveSequenceNumber++;
uint8_t * decrypted = new uint8_t[m_NextReceivedLen];
if (i2p::crypto::AEADChaCha20Poly1305 (m_NextReceivedBuffer, m_NextReceivedLen-16, nullptr, 0, m_ReceiveKey, nonce, decrypted, m_NextReceivedLen, false))
if (i2p::crypto::AEADChaCha20Poly1305 (m_NextReceivedBuffer, m_NextReceivedLen-16, nullptr, 0, m_ReceiveKey, nonce, m_NextReceivedBuffer, m_NextReceivedLen, false))
{
LogPrint (eLogDebug, "NTCP2: received message decrypted");
ProcessNextFrame (decrypted, m_NextReceivedLen-16);
ProcessNextFrame (m_NextReceivedBuffer, m_NextReceivedLen-16);
delete[] m_NextReceivedBuffer; m_NextReceivedBuffer = nullptr; // we don't need received buffer anymore
ReceiveLength ();
}
@@ -710,7 +709,6 @@ namespace transport
LogPrint (eLogWarning, "NTCP2: Received AEAD verification failed ");
SendTerminationAndTerminate (eNTCP2DataPhaseAEADFailure);
}
delete[] decrypted;
}
}