idea.h
资源名称:snmp_pp.rar [点击查看]
上传用户:ets1996
上传日期:2014-09-30
资源大小:353k
文件大小:5k
源码类别:
SNMP编程
开发平台:
Visual C++
- /*_############################################################################
- _##
- _## idea.h
- _##
- _## SNMP++v3.2.22
- _## -----------------------------------------------
- _## Copyright (c) 2001-2007 Jochen Katz, Frank Fock
- _##
- _## This software is based on SNMP++2.6 from Hewlett Packard:
- _##
- _## Copyright (c) 1996
- _## Hewlett-Packard Company
- _##
- _## ATTENTION: USE OF THIS SOFTWARE IS SUBJECT TO THE FOLLOWING TERMS.
- _## Permission to use, copy, modify, distribute and/or sell this software
- _## and/or its documentation is hereby granted without fee. User agrees
- _## to display the above copyright notice and this license notice in all
- _## copies of the software and any documentation of the software. User
- _## agrees to assume all liability for the use of the software;
- _## Hewlett-Packard and Jochen Katz make no representations about the
- _## suitability of this software for any purpose. It is provided
- _## "AS-IS" without warranty of any kind, either express or implied. User
- _## hereby grants a royalty-free license to any and all derivatives based
- _## upon this software code base.
- _##
- _## Stuttgart, Germany, Wed May 2 23:22:30 CEST 2007
- _##
- _##########################################################################*/
- // $Id: idea.h 287 2007-03-22 22:37:09Z katz $
- /*
- idea.h
- Author: Tatu Ylonen <ylo@cs.hut.fi>
- Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
- All rights reserved
- Created: Sun Jun 25 04:44:30 1995 ylo
- The IDEA encryption algorithm.
- */
- #ifndef IDEA_H
- #define IDEA_H
- #include "snmp_pp/config_snmp_pp.h"
- #ifdef SNMP_PP_NAMESPACE
- namespace Snmp_pp {
- #endif
- #ifdef _USE_IDEA
- typedef unsigned short word16;
- typedef unsigned int word32;
- typedef struct
- {
- word16 key_schedule[52];
- } IDEAContext;
- /* Sets idea key for encryption. */
- void idea_set_key(IDEAContext *c, const unsigned char key[16]);
- /* Destroys any sensitive data in the context. */
- void idea_destroy_context(IDEAContext *c);
- /* Performs the IDEA cipher transform on a block of data. */
- void idea_transform(IDEAContext *c, word32 l, word32 r, word32 *output);
- /* Encrypts len bytes from src to dest in CFB mode. Len need not be a multiple
- of 8; if it is not, iv at return will contain garbage.
- Otherwise, iv will be modified at end to a value suitable for continuing
- encryption. */
- void idea_cfb_encrypt(IDEAContext *c, unsigned char *iv, unsigned char *dest,
- const unsigned char *src, unsigned int len);
- /* Decrypts len bytes from src to dest in CFB mode. Len need not be a multiple
- of 8; if it is not, iv at return will contain garbage.
- Otherwise, iv will be modified at end to a value suitable for continuing
- decryption. */
- void idea_cfb_decrypt(IDEAContext *c, unsigned char *iv, unsigned char *dest,
- const unsigned char *src, unsigned int len);
- #endif /* IDEA_H */
- #endif /* _USE_IDEA */
- #ifdef SNMP_PP_NAMESPACE
- } // end of namespace Snmp_pp
- #endif
- /*
- getput.h
- Author: Tatu Ylonen <ylo@cs.hut.fi>
- Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
- All rights reserved
- Created: Wed Jun 28 22:36:30 1995 ylo
- Macros for storing and retrieving data in msb first and lsb first order.
- */
- #ifdef SNMP_PP_NAMESPACE
- namespace Snmp_pp {
- #endif
- #ifndef GETPUT_H
- #define GETPUT_H
- /*------------ macros for storing/extracting msb first words -------------*/
- #define GET_32BIT(cp) (((unsigned long)(unsigned char)(cp)[0] << 24) |
- ((unsigned long)(unsigned char)(cp)[1] << 16) |
- ((unsigned long)(unsigned char)(cp)[2] << 8) |
- ((unsigned long)(unsigned char)(cp)[3]))
- #define GET_16BIT(cp) (((unsigned long)(unsigned char)(cp)[0] << 8) |
- ((unsigned long)(unsigned char)(cp)[1]))
- #define PUT_32BIT(cp, value) do {
- (cp)[0] = (value) >> 24;
- (cp)[1] = (value) >> 16;
- (cp)[2] = (value) >> 8;
- (cp)[3] = (value); } while (0)
- #define PUT_16BIT(cp, value) do {
- (cp)[0] = (value) >> 8;
- (cp)[1] = (value); } while (0)
- /*------------ macros for storing/extracting lsb first words -------------*/
- #define GET_32BIT_LSB_FIRST(cp)
- (((unsigned long)(unsigned char)(cp)[0]) |
- ((unsigned long)(unsigned char)(cp)[1] << 8) |
- ((unsigned long)(unsigned char)(cp)[2] << 16) |
- ((unsigned long)(unsigned char)(cp)[3] << 24))
- #define GET_16BIT_LSB_FIRST(cp)
- (((unsigned long)(unsigned char)(cp)[0]) |
- ((unsigned long)(unsigned char)(cp)[1] << 8))
- #define PUT_32BIT_LSB_FIRST(cp, value) do {
- (cp)[0] = (value);
- (cp)[1] = (value) >> 8;
- (cp)[2] = (value) >> 16;
- (cp)[3] = (value) >> 24; } while (0)
- #define PUT_16BIT_LSB_FIRST(cp, value) do {
- (cp)[0] = (value);
- (cp)[1] = (value) >> 8; } while (0)
- #ifdef SNMP_PP_NAMESPACE
- } // end of namespace Snmp_pp
- #endif
- #endif /* GETPUT_H */