public CipherSuiteInfo(BulkCipherAlgorithm cipher, CipherType cipherType,
byte encKeyLen, byte blockLen, byte ivLen, byte recordIVLen, MACAlgorithm mac,
KeyExchangeAlgorithm exchangeAlgo)
{
_bulk_cipher = cipher;
_cipherType = cipherType;
_enc_key_length = encKeyLen;
_block_length = blockLen;
_fixed_iv_length = ivLen;
_record_iv_length = recordIVLen;
_mac = mac;
_exchangeAlgo = exchangeAlgo;
switch (mac)
{
case MACAlgorithm.HMAC_MD5: _mac_length = _mac_key_length = 16; break;
case MACAlgorithm.HMAC_SHA1: _mac_length = _mac_key_length = 20; break;
case MACAlgorithm.HMAC_SHA256: _mac_length = _mac_key_length = 32; break;
case MACAlgorithm.HMAC_SHA384: _mac_length = _mac_key_length = 48; break;
case MACAlgorithm.HMAC_SHA512: _mac_length = _mac_key_length = 64; break;
default: throw new ArgumentOutOfRangeException();
}
_isECC = exchangeAlgo == KeyExchangeAlgorithm.ECDH_anon ||
exchangeAlgo == KeyExchangeAlgorithm.ECDH_ECDSA ||
exchangeAlgo == KeyExchangeAlgorithm.ECDH_RSA ||
exchangeAlgo == KeyExchangeAlgorithm.ECDHE_ECDSA ||
exchangeAlgo == KeyExchangeAlgorithm.ECDHE_RSA;
}
public CipherSuiteInfo(BulkCipherAlgorithm cipher, CipherType cipherType,
byte encKeyLen, byte blockLen, byte ivLen, byte recordIVLen, MACAlgorithm mac,
KeyExchangeAlgorithm exchangeAlgo)
{
_bulk_cipher = cipher;
_cipherType = cipherType;
_enc_key_length = encKeyLen;
_block_length = blockLen;
_fixed_iv_length = ivLen;
_record_iv_length = recordIVLen;
_mac = mac;
_exchangeAlgo = exchangeAlgo;
switch (mac) {
case MACAlgorithm.HMAC_MD5: _mac_length = _mac_key_length = 16; break;
case MACAlgorithm.HMAC_SHA1: _mac_length = _mac_key_length = 20; break;
case MACAlgorithm.HMAC_SHA256: _mac_length = _mac_key_length = 32; break;
case MACAlgorithm.HMAC_SHA384: _mac_length = _mac_key_length = 48; break;
case MACAlgorithm.HMAC_SHA512: _mac_length = _mac_key_length = 64; break;
default: throw new ArgumentOutOfRangeException ();
}
_isECC = exchangeAlgo == KeyExchangeAlgorithm.ECDH_anon ||
exchangeAlgo == KeyExchangeAlgorithm.ECDH_ECDSA ||
exchangeAlgo == KeyExchangeAlgorithm.ECDH_RSA ||
exchangeAlgo == KeyExchangeAlgorithm.ECDHE_ECDSA ||
exchangeAlgo == KeyExchangeAlgorithm.ECDHE_RSA;
}
public void SetCipherSuite(CipherSuite suite, AsymmetricAlgorithm signAlgo)
{
CipherSuiteInfo info = SupportedCipherSuites.GetSuiteInfo(suite);
if (info == null)
{
throw new NotSupportedException();
}
_bulk_cipher = info.BulkCipherAlgorithm;
_cipherType = info.CipherType;
_enc_key_length = info.EncKeyLength;
_block_length = info.BlockLength;
_fixed_iv_length = info.FixedIVLength;
_record_iv_length = info.RecordIVLength;
_mac = info.MACAlgorithm;
_mac_length = info.MACLength;
_mac_key_length = info.MACKeyLength;
_keyExchange = info.KeyExchangeAlgorithm;
// TODO: TLS1.2spec ?
switch (_prfType)
{
case PRFAlgorithm.MD5_AND_SHA1: _prf = new MD5_AND_SHA1(); break;
case PRFAlgorithm.SSL3: _prf = new SSL3_PRF(this); break;
default: throw new NotSupportedException();
}
switch (_keyExchange)
{
case KeyExchangeAlgorithm.ECDHE_ECDSA:
_keyExchanger = new ECDHE_ECDSA((openCrypto.EllipticCurve.Signature.ECDSA)signAlgo);
break;
case KeyExchangeAlgorithm.DHE_DSS:
_keyExchanger = new DHE_DSS((DSACryptoServiceProvider)signAlgo);
break;
case KeyExchangeAlgorithm.RSA:
_keyExchanger = new KeyExchange.RSA((RSACryptoServiceProvider)signAlgo);
break;
default:
throw new NotImplementedException();
}
}
public void SetCipherSuite(CipherSuite suite, AsymmetricAlgorithm signAlgo)
{
CipherSuiteInfo info = SupportedCipherSuites.GetSuiteInfo (suite);
if (info == null)
throw new NotSupportedException ();
_bulk_cipher = info.BulkCipherAlgorithm;
_cipherType = info.CipherType;
_enc_key_length = info.EncKeyLength;
_block_length = info.BlockLength;
_fixed_iv_length = info.FixedIVLength;
_record_iv_length = info.RecordIVLength;
_mac = info.MACAlgorithm;
_mac_length = info.MACLength;
_mac_key_length = info.MACKeyLength;
_keyExchange = info.KeyExchangeAlgorithm;
// TODO: TLS1.2spec ?
switch (_prfType) {
case PRFAlgorithm.MD5_AND_SHA1: _prf = new MD5_AND_SHA1 (); break;
case PRFAlgorithm.SSL3: _prf = new SSL3_PRF (this); break;
default: throw new NotSupportedException ();
}
switch (_keyExchange) {
case KeyExchangeAlgorithm.ECDHE_ECDSA:
_keyExchanger = new ECDHE_ECDSA ((openCrypto.EllipticCurve.Signature.ECDSA)signAlgo);
break;
case KeyExchangeAlgorithm.DHE_DSS:
_keyExchanger = new DHE_DSS ((DSACryptoServiceProvider)signAlgo);
break;
case KeyExchangeAlgorithm.RSA:
_keyExchanger = new KeyExchange.RSA ((RSACryptoServiceProvider)signAlgo);
break;
default:
throw new NotImplementedException ();
}
}