protected bool doHandshaking(string encryption_type, string encryption_header)
{
if (encryption_type == kEncryptionHandshakeBegin)
{
// encryption list
List <EncryptionType> encryption_list = new List <EncryptionType>();
if (encryption_header.Length > 0)
{
int begin = 0;
int end = encryption_header.IndexOf(kDelim2);
EncryptionType type;
while (end != -1)
{
type = (EncryptionType)Convert.ToInt32(encryption_header.Substring(begin, end - begin));
encryption_list.Add(type);
begin = end + 1;
end = encryption_header.IndexOf(kDelim2, begin);
}
type = (EncryptionType)Convert.ToInt32(encryption_header.Substring(begin));
encryption_list.Add(type);
}
// Create encryptors
foreach (EncryptionType type in encryption_list)
{
if (!createEncryptor(type))
{
return(false);
}
}
}
else
{
// Encryption handshake message
EncryptionType type = (EncryptionType)Convert.ToInt32(encryption_type);
if (!encryptors_.ContainsKey(type))
{
LogWarning("Encryptor.doHandshaking - Unavailable type: {0}", type);
return(false);
}
Encryptor encryptor = encryptors_[type];
if (encryptor.state != Encryptor.State.kHandshaking)
{
LogWarning("Encryptor.doHandshaking - Encryptor state is not handshaking. " +
"state: {0}", encryptor.state);
return(false);
}
string out_header = "";
if (!encryptor.Handshake(encryption_header, ref out_header))
{
LogWarning("Encryptor.doHandshaking - Failure in '{0}' Handshake.",
encryptor.name);
return(false);
}
FunDebug.Assert(encryptor.state == Encryptor.State.kEstablished);
}
bool handshake_complete = true;
foreach (KeyValuePair <EncryptionType, Encryptor> pair in encryptors_)
{
if (pair.Value.state != Encryptor.State.kEstablished)
{
handshake_complete = false;
break;
}
}
return(handshake_complete);
}