mirror of
git://anongit.mindrot.org/openssh.git
synced 2024-12-01 09:46:50 +08:00
5428f646ad
- Merged OpenBSD CVS changes:
- [channels.c]
report from mrwizard@psu.edu via djm@ibs.com.au
- [channels.c]
set SO_REUSEADDR and SO_LINGER for forwarded ports.
chip@valinux.com via damien@ibs.com.au
- [nchan.c]
it's not an error() if shutdown_write failes in nchan.
- [readconf.c]
remove dead #ifdef-0-code
- [readconf.c servconf.c]
strcasecmp instead of tolower
- [scp.c]
progress meter overflow fix from damien@ibs.com.au
- [ssh-add.1 ssh-add.c]
SSH_ASKPASS support
- [ssh.1 ssh.c]
postpone fork_after_authentication until command execution,
request/patch from jahakala@cc.jyu.fi via damien@ibs.com.au
plus: use daemon() for backgrounding
106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
/*
|
|
*
|
|
* cipher.h
|
|
*
|
|
* Author: Tatu Ylonen <ylo@cs.hut.fi>
|
|
*
|
|
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
|
|
* All rights reserved
|
|
*
|
|
* Created: Wed Apr 19 16:50:42 1995 ylo
|
|
*
|
|
*/
|
|
|
|
/* RCSID("$Id: cipher.h,v 1.5 1999/11/25 00:54:58 damien Exp $"); */
|
|
|
|
#ifndef CIPHER_H
|
|
#define CIPHER_H
|
|
|
|
#include "config.h"
|
|
|
|
#ifdef HAVE_OPENSSL
|
|
#include <openssl/des.h>
|
|
#include <openssl/blowfish.h>
|
|
#endif
|
|
#ifdef HAVE_SSL
|
|
#include <ssl/des.h>
|
|
#include <ssl/blowfish.h>
|
|
#endif
|
|
|
|
/* Cipher types. New types can be added, but old types should not be removed
|
|
for compatibility. The maximum allowed value is 31. */
|
|
#define SSH_CIPHER_NOT_SET -1 /* None selected (invalid number). */
|
|
#define SSH_CIPHER_NONE 0 /* no encryption */
|
|
#define SSH_CIPHER_IDEA 1 /* IDEA CFB */
|
|
#define SSH_CIPHER_DES 2 /* DES CBC */
|
|
#define SSH_CIPHER_3DES 3 /* 3DES CBC */
|
|
#define SSH_CIPHER_BROKEN_TSS 4 /* TRI's Simple Stream encryption CBC */
|
|
#define SSH_CIPHER_BROKEN_RC4 5 /* Alleged RC4 */
|
|
#define SSH_CIPHER_BLOWFISH 6
|
|
|
|
typedef struct {
|
|
unsigned int type;
|
|
union {
|
|
struct {
|
|
des_key_schedule key1;
|
|
des_key_schedule key2;
|
|
des_cblock iv2;
|
|
des_key_schedule key3;
|
|
des_cblock iv3;
|
|
} des3;
|
|
struct {
|
|
struct bf_key_st key;
|
|
unsigned char iv[8];
|
|
} bf;
|
|
} u;
|
|
} CipherContext;
|
|
/*
|
|
* Returns a bit mask indicating which ciphers are supported by this
|
|
* implementation. The bit mask has the corresponding bit set of each
|
|
* supported cipher.
|
|
*/
|
|
unsigned int cipher_mask();
|
|
|
|
/* Returns the name of the cipher. */
|
|
const char *cipher_name(int cipher);
|
|
|
|
/*
|
|
* Parses the name of the cipher. Returns the number of the corresponding
|
|
* cipher, or -1 on error.
|
|
*/
|
|
int cipher_number(const char *name);
|
|
|
|
/*
|
|
* Selects the cipher to use and sets the key. If for_encryption is true,
|
|
* the key is setup for encryption; otherwise it is setup for decryption.
|
|
*/
|
|
void
|
|
cipher_set_key(CipherContext * context, int cipher,
|
|
const unsigned char *key, int keylen, int for_encryption);
|
|
|
|
/*
|
|
* Sets key for the cipher by computing the MD5 checksum of the passphrase,
|
|
* and using the resulting 16 bytes as the key.
|
|
*/
|
|
void
|
|
cipher_set_key_string(CipherContext * context, int cipher,
|
|
const char *passphrase, int for_encryption);
|
|
|
|
/* Encrypts data using the cipher. */
|
|
void
|
|
cipher_encrypt(CipherContext * context, unsigned char *dest,
|
|
const unsigned char *src, unsigned int len);
|
|
|
|
/* Decrypts data using the cipher. */
|
|
void
|
|
cipher_decrypt(CipherContext * context, unsigned char *dest,
|
|
const unsigned char *src, unsigned int len);
|
|
|
|
/*
|
|
* If and CRC-32 attack is detected this function is called. Defaults to
|
|
* fatal, changed to packet_disconnect in sshd and ssh.
|
|
*/
|
|
extern void (*cipher_attack_detected) (const char *fmt, ...);
|
|
|
|
#endif /* CIPHER_H */
|