diff options
Diffstat (limited to 'include/base.h')
| -rw-r--r-- | include/base.h | 44 |
1 files changed, 24 insertions, 20 deletions
diff --git a/include/base.h b/include/base.h index bccf92e25..70c28ea02 100644 --- a/include/base.h +++ b/include/base.h @@ -17,27 +17,15 @@ namespace Botan { static const u32bit DEFAULT_BUFFERSIZE = BOTAN_DEFAULT_BUFFER_SIZE; /************************************************* -* Algorithm * -*************************************************/ -class Algorithm - { - public: - virtual void clear() throw() {}; - virtual std::string name() const = 0; - virtual ~Algorithm() {} - Algorithm() {} - private: - Algorithm(const Algorithm&) {} - Algorithm& operator=(const Algorithm&) { return (*this); } - }; - -/************************************************* * Symmetric Algorithm * *************************************************/ -class SymmetricAlgorithm : public virtual Algorithm +class 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; @@ -54,11 +42,15 @@ class 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() {}; + BlockCipher(u32bit, u32bit, u32bit = 0, u32bit = 1); virtual ~BlockCipher() {} private: @@ -82,6 +74,8 @@ class StreamCipher : public SymmetricAlgorithm virtual void seek(u32bit); virtual StreamCipher* clone() const = 0; + virtual void clear() throw() {}; + StreamCipher(u32bit, u32bit = 0, u32bit = 1, u32bit = 0); virtual ~StreamCipher() {} private: @@ -91,7 +85,7 @@ class StreamCipher : public SymmetricAlgorithm /************************************************* * Buffered Computation * *************************************************/ -class BufferedComputation : public virtual Algorithm +class BufferedComputation { public: const u32bit OUTPUT_LENGTH; @@ -118,7 +112,11 @@ class HashFunction : public BufferedComputation { public: const u32bit HASH_BLOCK_SIZE; + virtual HashFunction* clone() const = 0; + virtual std::string name() const = 0; + virtual void clear() throw() {}; + HashFunction(u32bit, u32bit = 0); virtual ~HashFunction() {} }; @@ -130,9 +128,12 @@ class MessageAuthenticationCode : public BufferedComputation, public SymmetricAlgorithm { public: - virtual std::string name() const = 0; - virtual MessageAuthenticationCode* clone() const = 0; virtual bool verify_mac(const byte[], u32bit); + + virtual MessageAuthenticationCode* clone() const = 0; + virtual std::string name() const = 0; + virtual void clear() throw() {}; + MessageAuthenticationCode(u32bit, u32bit, u32bit = 0, u32bit = 1); virtual ~MessageAuthenticationCode() {} }; @@ -151,13 +152,16 @@ class EntropySource /************************************************* * Random Number Generator * *************************************************/ -class RandomNumberGenerator : public Algorithm +class RandomNumberGenerator { public: virtual void randomize(byte[], u32bit) throw(PRNG_Unseeded) = 0; virtual bool is_seeded() const { return true; } + virtual void clear() throw() {}; + void add_entropy(const byte[], u32bit); u32bit add_entropy(EntropySource&, bool = true); + virtual ~RandomNumberGenerator() {} private: virtual void add_randomness(const byte[], u32bit) = 0; |