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revision 3221 by maya, Tue Mar 24 09:37:20 2009 UTC revision 3227 by maya, Tue Mar 24 15:10:33 2009 UTC
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1  /*  /*
2  Copyright (c) 1998-2001, Robert O'Callahan  Copyright (c) 1998-2001, Robert O'Callahan
3  All rights reserved.  All rights reserved.
4    
5  Redistribution and use in source and binary forms, with or without modification,  Redistribution and use in source and binary forms, with or without modification,
6  are permitted provided that the following conditions are met:  are permitted provided that the following conditions are met:
7    
8  Redistributions of source code must retain the above copyright notice, this list of  Redistributions of source code must retain the above copyright notice, this list of
9  conditions and the following disclaimer.  conditions and the following disclaimer.
10    
11  Redistributions in binary form must reproduce the above copyright notice, this list  Redistributions in binary form must reproduce the above copyright notice, this list
12  of conditions and the following disclaimer in the documentation and/or other materials  of conditions and the following disclaimer in the documentation and/or other materials
13  provided with the distribution.  provided with the distribution.
14    
15  The name of Robert O'Callahan may not be used to endorse or promote products derived from  The name of Robert O'Callahan may not be used to endorse or promote products derived from
16  this software without specific prior written permission.  this software without specific prior written permission.
17    
18  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
19  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21  THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
26  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */  */
28    
29  /*  /*
30  This code is copyright (C) 1998-1999 Robert O'Callahan.  This code is copyright (C) 1998-1999 Robert O'Callahan.
31  See LICENSE.TXT for the license.  See LICENSE.TXT for the license.
32  */  */
33    
34  #ifndef __CRYPT_H  #ifndef __CRYPT_H
35  #define __CRYPT_H  #define __CRYPT_H
36    
37  #include <openssl/rsa.h>  #include <openssl/rsa.h>
38  #include <openssl/des.h>  #include <openssl/des.h>
39  #include <openssl/idea.h>  #include <openssl/idea.h>
40  #include <openssl/rc4.h>  #include <openssl/rc4.h>
41  #include <openssl/blowfish.h>  #include <openssl/blowfish.h>
42    
43  #define SSH_SESSION_KEY_LENGTH    32  #define SSH_SESSION_KEY_LENGTH    32
44  #define SSH_RSA_CHALLENGE_LENGTH  32  #define SSH_RSA_CHALLENGE_LENGTH  32
45  #define SSH_COOKIE_LENGTH         8  #define SSH_COOKIE_LENGTH         8
46  #define SSH2_COOKIE_LENGTH         16  #define SSH2_COOKIE_LENGTH         16
47    
48  #define CRYPT_KEY_LENGTH     32  #define CRYPT_KEY_LENGTH     32
49  #define COOKIE_LENGTH        16  #define COOKIE_LENGTH        16
50    
51  typedef struct {  typedef struct {
52    DES_key_schedule k1;    DES_key_schedule k1;
53    DES_key_schedule k2;    DES_key_schedule k2;
54    DES_key_schedule k3;    DES_key_schedule k3;
55    DES_cblock ivec1;    DES_cblock ivec1;
56    DES_cblock ivec2;    DES_cblock ivec2;
57    DES_cblock ivec3;    DES_cblock ivec3;
58  } Cipher3DESState;  } Cipher3DESState;
59    
60  typedef struct {  typedef struct {
61    IDEA_KEY_SCHEDULE k;    IDEA_KEY_SCHEDULE k;
62    unsigned char ivec[8];    unsigned char ivec[8];
63  } CipherIDEAState;  } CipherIDEAState;
64    
65  typedef struct {  typedef struct {
66    DES_key_schedule k;    DES_key_schedule k;
67    DES_cblock ivec;    DES_cblock ivec;
68  } CipherDESState;  } CipherDESState;
69    
70  typedef struct {  typedef struct {
71    RC4_KEY k;    RC4_KEY k;
72  } CipherRC4State;  } CipherRC4State;
73    
74  typedef struct {  typedef struct {
75    BF_KEY k;    BF_KEY k;
76    unsigned char ivec[8];    unsigned char ivec[8];
77  } CipherBlowfishState;  } CipherBlowfishState;
78    
79  typedef struct {  typedef struct {
80    uint32 FAR * h;    uint32 FAR * h;
81    uint32 n;    uint32 n;
82  } CRYPTDetectAttack;  } CRYPTDetectAttack;
83    
84  typedef struct {  typedef struct {
85    RSA FAR * RSA_key;    RSA FAR * RSA_key;
86  } CRYPTPublicKey;  } CRYPTPublicKey;
87    
88  typedef struct _CRYPTKeyPair {  typedef struct _CRYPTKeyPair {
89    RSA FAR * RSA_key;    RSA FAR * RSA_key;
90    DSA *DSA_key;    DSA *DSA_key;
91  } CRYPTKeyPair;  } CRYPTKeyPair;
92    
93  typedef union {  typedef union {
94    Cipher3DESState c3DES;    Cipher3DESState c3DES;
95    CipherIDEAState cIDEA;    CipherIDEAState cIDEA;
96    CipherDESState cDES;    CipherDESState cDES;
97    CipherRC4State cRC4;    CipherRC4State cRC4;
98    CipherBlowfishState cBlowfish;    CipherBlowfishState cBlowfish;
99  } CRYPTCipherState;  } CRYPTCipherState;
100    
101  typedef void (* CRYPTCryptFun)(PTInstVar pvar, unsigned char FAR * buf, int bytes);  typedef void (* CRYPTCryptFun)(PTInstVar pvar, unsigned char FAR * buf, int bytes);
102    
103  typedef struct {  typedef struct {
104    CRYPTDetectAttack detect_attack_statics;    CRYPTDetectAttack detect_attack_statics;
105    
106    CRYPTPublicKey server_key;    CRYPTPublicKey server_key;
107    CRYPTPublicKey host_key;    CRYPTPublicKey host_key;
108    
109    char server_cookie[COOKIE_LENGTH];    char server_cookie[COOKIE_LENGTH];
110    char client_cookie[COOKIE_LENGTH];    char client_cookie[COOKIE_LENGTH];
111    
112    int supported_sender_ciphers;    int supported_sender_ciphers;
113    int supported_receiver_ciphers;    int supported_receiver_ciphers;
114    int sender_cipher;    int sender_cipher;
115    int receiver_cipher;    int receiver_cipher;
116    char sender_cipher_key[CRYPT_KEY_LENGTH];    char sender_cipher_key[CRYPT_KEY_LENGTH];
117    char receiver_cipher_key[CRYPT_KEY_LENGTH];    char receiver_cipher_key[CRYPT_KEY_LENGTH];
118    CRYPTCryptFun encrypt;    CRYPTCryptFun encrypt;
119    CRYPTCryptFun decrypt;    CRYPTCryptFun decrypt;
120    CRYPTCipherState enc;    CRYPTCipherState enc;
121    CRYPTCipherState dec;    CRYPTCipherState dec;
122  } CRYPTState;  } CRYPTState;
123    
124  void CRYPT_init(PTInstVar pvar);  void CRYPT_init(PTInstVar pvar);
125  /* this function is called during 'slack time' while we wait for a response  /* this function is called during 'slack time' while we wait for a response
126     from the server. Therefore we have some time available to do some     from the server. Therefore we have some time available to do some
127     moderately expensive computations. */     moderately expensive computations. */
128  void CRYPT_initialize_random_numbers(PTInstVar pvar);  void CRYPT_initialize_random_numbers(PTInstVar pvar);
129  void CRYPT_set_random_data(PTInstVar pvar, unsigned char FAR * buf, int bytes);  void CRYPT_set_random_data(PTInstVar pvar, unsigned char FAR * buf, int bytes);
130  void CRYPT_end(PTInstVar pvar);  void CRYPT_end(PTInstVar pvar);
131    
132  void CRYPT_get_cipher_info(PTInstVar pvar, char FAR * dest, int len);  void CRYPT_get_cipher_info(PTInstVar pvar, char FAR * dest, int len);
133  void CRYPT_get_server_key_info(PTInstVar pvar, char FAR * dest, int len);  void CRYPT_get_server_key_info(PTInstVar pvar, char FAR * dest, int len);
134    
135  void CRYPT_set_server_cookie(PTInstVar pvar, unsigned char FAR * cookie);  void CRYPT_set_server_cookie(PTInstVar pvar, unsigned char FAR * cookie);
136  void CRYPT_set_client_cookie(PTInstVar pvar, unsigned char FAR * cookie);  void CRYPT_set_client_cookie(PTInstVar pvar, unsigned char FAR * cookie);
137  #define CRYPT_get_server_cookie(pvar) ((pvar)->crypt_state.server_cookie)  #define CRYPT_get_server_cookie(pvar) ((pvar)->crypt_state.server_cookie)
138    
139  void CRYPT_free_key_pair(CRYPTKeyPair FAR * key_pair);  void CRYPT_free_key_pair(CRYPTKeyPair FAR * key_pair);
140  void CRYPT_free_public_key(CRYPTPublicKey FAR * key);  void CRYPT_free_public_key(CRYPTPublicKey FAR * key);
141    
142  BOOL CRYPT_set_server_RSA_key(PTInstVar pvar,  BOOL CRYPT_set_server_RSA_key(PTInstVar pvar,
143    int bits, unsigned char FAR * exp, unsigned char FAR * mod);    int bits, unsigned char FAR * exp, unsigned char FAR * mod);
144  BOOL CRYPT_set_host_RSA_key(PTInstVar pvar,  BOOL CRYPT_set_host_RSA_key(PTInstVar pvar,
145    int bits, unsigned char FAR * exp, unsigned char FAR * mod);    int bits, unsigned char FAR * exp, unsigned char FAR * mod);
146  int CRYPT_get_encrypted_session_key_len(PTInstVar pvar);  int CRYPT_get_encrypted_session_key_len(PTInstVar pvar);
147  int CRYPT_choose_session_key(PTInstVar pvar, unsigned char FAR * encrypted_key_buf);  int CRYPT_choose_session_key(PTInstVar pvar, unsigned char FAR * encrypted_key_buf);
148  BOOL CRYPT_start_encryption(PTInstVar pvar, int sender_flag, int receiver_flag);  BOOL CRYPT_start_encryption(PTInstVar pvar, int sender_flag, int receiver_flag);
149  int CRYPT_generate_RSA_challenge_response(PTInstVar pvar, unsigned char FAR * challenge,  int CRYPT_generate_RSA_challenge_response(PTInstVar pvar, unsigned char FAR * challenge,
150                                             int challenge_len, unsigned char FAR * response);                                             int challenge_len, unsigned char FAR * response);
151    
152  int CRYPT_get_receiver_MAC_size(PTInstVar pvar);  int CRYPT_get_receiver_MAC_size(PTInstVar pvar);
153  BOOL CRYPT_verify_receiver_MAC(PTInstVar pvar, uint32 sequence_number,  BOOL CRYPT_verify_receiver_MAC(PTInstVar pvar, uint32 sequence_number,
154    char FAR * data, int len, char FAR * MAC);    char FAR * data, int len, char FAR * MAC);
155  int CRYPT_get_sender_MAC_size(PTInstVar pvar);  int CRYPT_get_sender_MAC_size(PTInstVar pvar);
156    
157  BOOL CRYPT_build_sender_MAC(PTInstVar pvar, uint32 sequence_number,  BOOL CRYPT_build_sender_MAC(PTInstVar pvar, uint32 sequence_number,
158    char FAR * data, int len, char FAR * MAC);    char FAR * data, int len, char FAR * MAC);
159    
160  BOOL CRYPT_set_supported_ciphers(PTInstVar pvar, int sender_ciphers, int receiver_ciphers);  BOOL CRYPT_set_supported_ciphers(PTInstVar pvar, int sender_ciphers, int receiver_ciphers);
161  BOOL CRYPT_choose_ciphers(PTInstVar pvar);  BOOL CRYPT_choose_ciphers(PTInstVar pvar);
162  #define CRYPT_get_sender_cipher(pvar) ((pvar)->crypt_state.sender_cipher)  #define CRYPT_get_sender_cipher(pvar) ((pvar)->crypt_state.sender_cipher)
163  #define CRYPT_get_receiver_cipher(pvar) ((pvar)->crypt_state.receiver_cipher)  #define CRYPT_get_receiver_cipher(pvar) ((pvar)->crypt_state.receiver_cipher)
164  int CRYPT_get_decryption_block_size(PTInstVar pvar);  int CRYPT_get_decryption_block_size(PTInstVar pvar);
165  int CRYPT_get_encryption_block_size(PTInstVar pvar);  int CRYPT_get_encryption_block_size(PTInstVar pvar);
166  #define CRYPT_encrypt(pvar, buf, bytes) \  #define CRYPT_encrypt(pvar, buf, bytes) \
167      ((pvar)->crypt_state.encrypt((pvar), (buf), (bytes)))      ((pvar)->crypt_state.encrypt((pvar), (buf), (bytes)))
168  #define CRYPT_decrypt(pvar, buf, bytes) \  #define CRYPT_decrypt(pvar, buf, bytes) \
169      ((pvar)->crypt_state.decrypt((pvar), (buf), (bytes)))      ((pvar)->crypt_state.decrypt((pvar), (buf), (bytes)))
170    
171  BOOL CRYPT_detect_attack(PTInstVar pvar, unsigned char FAR * buf, int bytes);  BOOL CRYPT_detect_attack(PTInstVar pvar, unsigned char FAR * buf, int bytes);
172  int CRYPT_passphrase_decrypt(int cipher, char FAR * passphrase, char FAR * buf, int len);  int CRYPT_passphrase_decrypt(int cipher, char FAR * passphrase, char FAR * buf, int len);
173  RSA FAR *make_key(PTInstVar pvar,  RSA FAR *make_key(PTInstVar pvar,
174                                                   int bits, unsigned char FAR * exp,                                                   int bits, unsigned char FAR * exp,
175                                                   unsigned char FAR * mod);                                                   unsigned char FAR * mod);
176    
177  #endif  #endif
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