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authorlloyd <[email protected]>2008-09-29 00:15:14 +0000
committerlloyd <[email protected]>2008-09-29 00:15:14 +0000
commit68d3d539ad7752dc80c20c1a2ade909b1a4c4a6e (patch)
treec7e588d28427960c95eca9900844d5bf36c079df /src/core/base.h
parent8269e2897e0a652bbd949d38b74873976a98adeb (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.h146
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