diff options
author | Keith Isdale <keith.isdale@nokia.com> | 2010-07-26 14:56:53 +1000 |
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committer | Keith Isdale <keith.isdale@nokia.com> | 2010-07-26 14:56:53 +1000 |
commit | 9f034793bcfc51c2b7c1dd14db806f7258f9a9eb (patch) | |
tree | 63bd0f50ce5b77828ad8205eafd7b9412810499e /botan/build/botan/xts.h | |
parent | 619d92cfef29e653bfdf852e83888e50cfc4348f (diff) | |
parent | 65271649dbc90f3af1184ad1b23bdb64c0c07d07 (diff) |
Merge branch 'master' of git://git-nokia.trolltech.com.au/qtsoftware/research/qtuitest
Diffstat (limited to 'botan/build/botan/xts.h')
-rw-r--r-- | botan/build/botan/xts.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/botan/build/botan/xts.h b/botan/build/botan/xts.h new file mode 100644 index 0000000..0155817 --- /dev/null +++ b/botan/build/botan/xts.h @@ -0,0 +1,76 @@ +/* +* XTS mode, from IEEE P1619 +* (C) 2009 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ + +#ifndef BOTAN_XTS_H__ +#define BOTAN_XTS_H__ + +#include <botan/basefilt.h> +#include <botan/block_cipher.h> + +namespace Botan { + +/* +* XTS Encryption +*/ +class BOTAN_DLL XTS_Encryption : public Keyed_Filter + { + public: + void set_key(const SymmetricKey& key); + void set_iv(const InitializationVector& iv); + + std::string name() const; + + XTS_Encryption(BlockCipher* ciph); + + XTS_Encryption(BlockCipher* ciph, + const SymmetricKey& key, + const InitializationVector& iv); + + ~XTS_Encryption() { delete cipher; delete cipher2; } + private: + void write(const byte[], u32bit); + void end_msg(); + void encrypt(const byte block[]); + + BlockCipher* cipher; + BlockCipher* cipher2; + SecureVector<byte> tweak; + SecureVector<byte> buffer; + u32bit position; + }; + +/* +* XTS Decryption +*/ +class BOTAN_DLL XTS_Decryption : public Keyed_Filter + { + public: + void set_key(const SymmetricKey& key); + void set_iv(const InitializationVector& iv); + + std::string name() const; + + XTS_Decryption(BlockCipher* ciph); + + XTS_Decryption(BlockCipher* ciph, + const SymmetricKey& key, + const InitializationVector& iv); + private: + void write(const byte[], u32bit); + void end_msg(); + void decrypt(const byte[]); + + BlockCipher* cipher; + BlockCipher* cipher2; + SecureVector<byte> tweak; + SecureVector<byte> buffer; + u32bit position; + }; + +} + +#endif |