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/*************************************************
* OctetString Header File *
* (C) 1999-2006 The Botan Project *
*************************************************/
#ifndef BOTAN_SYMKEY_H__
#define BOTAN_SYMKEY_H__
#include <botan/secmem.h>
#include <botan/enums.h>
#include <string>
namespace Botan {
/*************************************************
* Octet String *
*************************************************/
class OctetString
{
public:
u32bit length() const { return bits.size(); }
SecureVector<byte> bits_of() const { return bits; }
const byte* begin() const { return bits.begin(); }
const byte* end() const { return bits.end(); }
std::string as_string() const;
OctetString& operator^=(const OctetString&);
void set_odd_parity();
void change(u32bit);
void change(const std::string&);
void change(const byte[], u32bit);
void change(const MemoryRegion<byte>& in) { bits = in; }
OctetString(const std::string& str = "") { change(str); }
OctetString(const byte in[], u32bit len) { change(in, len); }
OctetString(const MemoryRegion<byte>& in) { change(in); }
private:
SecureVector<byte> bits;
};
/*************************************************
* Operations on Octet Strings *
*************************************************/
bool operator==(const OctetString&, const OctetString&);
bool operator!=(const OctetString&, const OctetString&);
OctetString operator+(const OctetString&, const OctetString&);
OctetString operator^(const OctetString&, const OctetString&);
/*************************************************
* Symmetric Key *
*************************************************/
class SymmetricKey : public OctetString
{
public:
SymmetricKey(u32bit len) { change(len); }
SymmetricKey(const std::string& str = "") : OctetString(str) {}
SymmetricKey(const byte in[], u32bit l) : OctetString(in, l) {}
SymmetricKey(const MemoryRegion<byte>& in) : OctetString(in) {}
SymmetricKey(const OctetString& os) : OctetString(os) {}
};
/*************************************************
* Initialization Vector *
*************************************************/
class InitializationVector : public OctetString
{
public:
InitializationVector(u32bit len) { change(len); }
InitializationVector(const std::string& str = "") : OctetString(str) {}
InitializationVector(const byte in[], u32bit l) : OctetString(in, l) {}
InitializationVector(const MemoryRegion<byte>& in) : OctetString(in) {}
InitializationVector(const OctetString& os) : OctetString(os) {}
};
}
#endif
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