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delete used tag before update

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orignal 2017-04-14 22:08:43 -04:00
parent bd6ce7d4da
commit dd79348b35
1 changed files with 5 additions and 4 deletions
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9
Garlic.cpp
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@ -437,17 +437,18 @@ namespace garlic
if (it != m_Tags.end ()) if (it != m_Tags.end ())
{ {
// tag found. Use AES // tag found. Use AES
auto decryption = it->second;
m_Tags.erase (it); // tag might be used only once
if (length >= 32) if (length >= 32)
{ {
uint8_t iv[32]; // IV is first 16 bytes uint8_t iv[32]; // IV is first 16 bytes
SHA256(buf, 32, iv); SHA256(buf, 32, iv);
it->second->SetIV (iv); decryption->SetIV (iv);
it->second->Decrypt (buf + 32, length - 32, buf + 32); decryption->Decrypt (buf + 32, length - 32, buf + 32);
HandleAESBlock (buf + 32, length - 32, it->second, msg->from); HandleAESBlock (buf + 32, length - 32, decryption, msg->from);
} }
else else
LogPrint (eLogWarning, "Garlic: message length ", length, " is less than 32 bytes"); LogPrint (eLogWarning, "Garlic: message length ", length, " is less than 32 bytes");
m_Tags.erase (it); // tag might be used only once
} }
else else
{ {