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Diffstat (limited to 'extra/yassl/taocrypt/include/hc128.hpp')
-rw-r--r-- | extra/yassl/taocrypt/include/hc128.hpp | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/extra/yassl/taocrypt/include/hc128.hpp b/extra/yassl/taocrypt/include/hc128.hpp new file mode 100644 index 00000000000..d1cf5f075f2 --- /dev/null +++ b/extra/yassl/taocrypt/include/hc128.hpp @@ -0,0 +1,63 @@ +/* + Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; version 2 of the License. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to the + Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + MA 02110-1301 USA. +*/ + +/* hc128.hpp defines HC128 +*/ + + +#ifndef TAO_CRYPT_HC128_HPP +#define TAO_CRYPT_HC128_HPP + +#include "misc.hpp" + +namespace TaoCrypt { + + +// HC128 encryption and decryption +class HC128 { +public: + + typedef HC128 Encryption; + typedef HC128 Decryption; + + + HC128() {} + + void Process(byte*, const byte*, word32); + void SetKey(const byte*, const byte*); +private: + word32 T_[1024]; /* P[i] = T[i]; Q[i] = T[1024 + i ]; */ + word32 X_[16]; + word32 Y_[16]; + word32 counter1024_; /* counter1024 = i mod 1024 at the ith step */ + word32 key_[8]; + word32 iv_[8]; + + void SetIV(const byte*); + void GenerateKeystream(word32*); + void SetupUpdate(); + + HC128(const HC128&); // hide copy + const HC128 operator=(const HC128&); // and assign +}; + +} // namespace + + +#endif // TAO_CRYPT_HC128_HPP + |