public CipherSuiteInfo(ECipherSuite cipherSuite, ECipherAlgorithm cipher, ECipherType cipherType,
byte encKeyLen, byte blockLen, byte ivLen, byte recordIVLen,
EMACAlgorithm mac, EKeyExchangeAlgorithm exchangeAlgo)
{
CipherSuite = cipherSuite;
CipherAlgorithm = cipher;
CipherType = cipherType;
EncKeyLength = encKeyLen;
BlockLength = blockLen;
FixedIVLength = ivLen;
RecordIVLength = recordIVLen;
MACAlgorithm = mac;
KeyExchangeAlgorithm = exchangeAlgo;
switch (mac)
{
case EMACAlgorithm.HMAC_MD5: MACLength = MACKeyLength = 16; break;
case EMACAlgorithm.HMAC_SHA1: MACLength = MACKeyLength = 20; break;
case EMACAlgorithm.HMAC_SHA256: MACLength = MACKeyLength = 32; break;
case EMACAlgorithm.HMAC_SHA384: MACLength = MACKeyLength = 48; break;
case EMACAlgorithm.HMAC_SHA512: MACLength = MACKeyLength = 64; break;
default: throw new ArgumentOutOfRangeException();
}
IsECC = exchangeAlgo == EKeyExchangeAlgorithm.ECDH_anon ||
exchangeAlgo == EKeyExchangeAlgorithm.ECDH_ECDSA ||
exchangeAlgo == EKeyExchangeAlgorithm.ECDH_RSA ||
exchangeAlgo == EKeyExchangeAlgorithm.ECDHE_ECDSA ||
exchangeAlgo == EKeyExchangeAlgorithm.ECDHE_RSA;
}
public HttpsSmsgHello(HttpsSession session, ECipherSuite cipherSuite, byte[] sessionID, byte[] serverRandom)
: base(session, ERecordType.Handshake)
{
Write((byte)EHandshake.ServerHello);
Write24BitInt(0x000000); // position = 6, length, must be fixed up on compile.
Write((ushort)session.Protocol);
Write(serverRandom); // 32 bytes server random data
if (sessionID == null)
{
Write((byte)0x00); // session id = null
}
else
{
Write((byte)sessionID.Length);
Write(sessionID);
}
Write((ushort)cipherSuite); // cipher suite used
Write((byte)0x00); // compression method used = null
FixupLength24Bit(6, (int)Length - 9);
}
