/usr/include/botan-1.10/botan/stream_cipher.h is in libbotan1.10-dev 1.10.16-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | /*
* Stream Cipher
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_STREAM_CIPHER_H__
#define BOTAN_STREAM_CIPHER_H__
#include <botan/sym_algo.h>
namespace Botan {
/**
* Base class for all stream ciphers
*/
class BOTAN_DLL StreamCipher : public SymmetricAlgorithm
{
public:
/**
* Encrypt or decrypt a message
* @param in the plaintext
* @param out the byte array to hold the output, i.e. the ciphertext
* @param len the length of both in and out in bytes
*/
virtual void cipher(const byte in[], byte out[], size_t len) = 0;
/**
* Encrypt or decrypt a message
* @param buf the plaintext / ciphertext
* @param len the length of buf in bytes
*/
void cipher1(byte buf[], size_t len)
{ cipher(buf, buf, len); }
/**
* Resync the cipher using the IV
* @param iv the initialization vector
* @param iv_len the length of the IV in bytes
*/
virtual void set_iv(const byte iv[], size_t iv_len);
/**
* @param iv_len the length of the IV in bytes
* @return if the length is valid for this algorithm
*/
virtual bool valid_iv_length(size_t iv_len) const;
/**
* Get a new object representing the same algorithm as *this
*/
virtual StreamCipher* clone() const = 0;
};
}
#endif
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