diff options
author | lloyd <[email protected]> | 2008-09-29 00:15:14 +0000 |
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committer | lloyd <[email protected]> | 2008-09-29 00:15:14 +0000 |
commit | 68d3d539ad7752dc80c20c1a2ade909b1a4c4a6e (patch) | |
tree | c7e588d28427960c95eca9900844d5bf36c079df /src/core/base.h | |
parent | 8269e2897e0a652bbd949d38b74873976a98adeb (diff) |
Move what is left of the uncategorized library to 'core'. There is still
a lot of public key stuff in here that needs to be extracted however,
and probably 2-3 other modules worth of stuff to split off (engines, etc)
Diffstat (limited to 'src/core/base.h')
-rw-r--r-- | src/core/base.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/core/base.h b/src/core/base.h new file mode 100644 index 000000000..b05feaacb --- /dev/null +++ b/src/core/base.h @@ -0,0 +1,146 @@ +/************************************************* +* Base Classes Header File * +* (C) 1999-2007 Jack Lloyd * +*************************************************/ + +#ifndef BOTAN_BASE_H__ +#define BOTAN_BASE_H__ + +#include <botan/exceptn.h> +#include <botan/symkey.h> + +namespace Botan { + +/************************************************* +* Constants * +*************************************************/ +static const u32bit DEFAULT_BUFFERSIZE = BOTAN_DEFAULT_BUFFER_SIZE; + +/************************************************* +* Symmetric Algorithm * +*************************************************/ +class BOTAN_DLL SymmetricAlgorithm + { + public: + const u32bit MAXIMUM_KEYLENGTH, MINIMUM_KEYLENGTH, KEYLENGTH_MULTIPLE; + + virtual std::string name() const = 0; + + void set_key(const SymmetricKey&) throw(Invalid_Key_Length); + void set_key(const byte[], u32bit) throw(Invalid_Key_Length); + bool valid_keylength(u32bit) const; + SymmetricAlgorithm(u32bit, u32bit, u32bit); + virtual ~SymmetricAlgorithm() {} + private: + virtual void key(const byte[], u32bit) = 0; + }; + +/************************************************* +* Block Cipher * +*************************************************/ +class BOTAN_DLL BlockCipher : public SymmetricAlgorithm + { + public: + const u32bit BLOCK_SIZE; + + void encrypt(const byte in[], byte out[]) const { enc(in, out); } + void decrypt(const byte in[], byte out[]) const { dec(in, out); } + void encrypt(byte block[]) const { enc(block, block); } + void decrypt(byte block[]) const { dec(block, block); } + + virtual BlockCipher* clone() const = 0; + virtual void clear() throw() = 0; + + BlockCipher(u32bit, u32bit, u32bit = 0, u32bit = 1); + virtual ~BlockCipher() {} + private: + virtual void enc(const byte[], byte[]) const = 0; + virtual void dec(const byte[], byte[]) const = 0; + }; + +/************************************************* +* Stream Cipher * +*************************************************/ +class BOTAN_DLL StreamCipher : public SymmetricAlgorithm + { + public: + const u32bit IV_LENGTH; + void encrypt(const byte i[], byte o[], u32bit len) { cipher(i, o, len); } + void decrypt(const byte i[], byte o[], u32bit len) { cipher(i, o, len); } + void encrypt(byte in[], u32bit len) { cipher(in, in, len); } + void decrypt(byte in[], u32bit len) { cipher(in, in, len); } + + virtual void resync(const byte[], u32bit); + virtual void seek(u32bit); + + virtual StreamCipher* clone() const = 0; + virtual void clear() throw() = 0; + + StreamCipher(u32bit, u32bit = 0, u32bit = 1, u32bit = 0); + virtual ~StreamCipher() {} + private: + virtual void cipher(const byte[], byte[], u32bit) = 0; + }; + +/************************************************* +* Buffered Computation * +*************************************************/ +class BOTAN_DLL BufferedComputation + { + public: + const u32bit OUTPUT_LENGTH; + void update(const byte[], u32bit); + void update(const MemoryRegion<byte>&); + void update(const std::string&); + void update(byte); + void final(byte out[]) { final_result(out); } + SecureVector<byte> final(); + SecureVector<byte> process(const byte[], u32bit); + SecureVector<byte> process(const MemoryRegion<byte>&); + SecureVector<byte> process(const std::string&); + BufferedComputation(u32bit); + virtual ~BufferedComputation() {} + private: + BufferedComputation& operator=(const BufferedComputation&); + virtual void add_data(const byte[], u32bit) = 0; + virtual void final_result(byte[]) = 0; + }; + +/************************************************* +* Hash Function * +*************************************************/ +class BOTAN_DLL HashFunction : public BufferedComputation + { + public: + const u32bit HASH_BLOCK_SIZE; + + virtual HashFunction* clone() const = 0; + virtual std::string name() const = 0; + virtual void clear() throw() = 0; + + HashFunction(u32bit, u32bit = 0); + virtual ~HashFunction() {} + private: + HashFunction& operator=(const HashFunction&); + }; + +/************************************************* +* Message Authentication Code * +*************************************************/ +class BOTAN_DLL MessageAuthenticationCode : public BufferedComputation, + public SymmetricAlgorithm + { + public: + virtual bool verify_mac(const byte[], u32bit); + + virtual MessageAuthenticationCode* clone() const = 0; + virtual std::string name() const = 0; + virtual void clear() throw() = 0; + + MessageAuthenticationCode(u32bit, u32bit, u32bit = 0, u32bit = 1); + virtual ~MessageAuthenticationCode() {} + }; + +} + +#endif |