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correct usage of sipkeys

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orignal 2018-06-22 12:20:35 -04:00
parent 5b29592174
commit 5884852612
2 changed files with 10 additions and 11 deletions
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7
libi2pd/NTCP2.cpp
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@ -132,7 +132,6 @@ namespace transport
void NTCP2Session::KeyDerivationFunctionDataPhase ()
{
char buf[100];
uint8_t tempKey[32]; unsigned int len;
HMAC(EVP_sha256(), m_CK, 32, nullptr, 0, tempKey, &len); // temp_key = HMAC-SHA256(ck, zerolen)
static uint8_t one[1] = { 1 };
@ -411,7 +410,7 @@ namespace transport
{
LogPrint (eLogDebug, "NTCP2: SessionConfirmed sent");
KeyDerivationFunctionDataPhase ();
memcpy (m_IV, m_Sipkeysba + 16, 8); //Alice
memcpy (m_ReceiveIV, m_Sipkeysba + 16, 8); //Alice
ReceiveLength ();
}
@ -449,8 +448,8 @@ namespace transport
}
else
{
i2p::crypto::Siphash<8> (m_ReceiveIV, m_ReceiveIV, 8, m_Kba); // assume Alice TODO:
m_NextReceivedLen = be16toh (m_NextReceivedLen ^ buf16toh(m_ReceiveIV));
i2p::crypto::Siphash<8> (m_ReceiveIV, m_ReceiveIV, 8, m_Sipkeysba); // assume Alice TODO:
m_NextReceivedLen = be16toh (m_NextReceivedLen ^ bufbe16toh(m_ReceiveIV));
LogPrint (eLogDebug, "NTCP2: received length ", m_NextReceivedLen);
delete[] m_NextReceivedBuffer;
m_NextReceivedBuffer = new uint8_t[m_NextReceivedLen];