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Revision 9210 - (hide annotations) (download) (as text)
Sat Apr 17 08:36:59 2021 UTC (2 years, 11 months ago) by nmaya
File MIME type: text/x-chdr
File size: 5708 byte(s) 
ファイルを分割・コードを移動・関数名を整理・新しい OpenSSH からインポート

- OpenSSH からインポート
  cipher-3des1.c from OpenSSH-7.5p1
  ssherr.c from OpenSSH-8.5p1
  ssherr.h from OpenSSH-8.5p1
1 maya 4304 /*
2 nmaya 9049 * (C) 2011- TeraTerm Project
3 doda 6841 * All rights reserved.
4     *
5     * Redistribution and use in source and binary forms, with or without
6     * modification, are permitted provided that the following conditions
7     * are met:
8     *
9     * 1. Redistributions of source code must retain the above copyright
10     * notice, this list of conditions and the following disclaimer.
11     * 2. Redistributions in binary form must reproduce the above copyright
12     * notice, this list of conditions and the following disclaimer in the
13     * documentation and/or other materials provided with the distribution.
14     * 3. The name of the author may not be used to endorse or promote products
15     * derived from this software without specific prior written permission.
16     *
17     * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
18     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20     * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
21     * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22     * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23     * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24     * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26     * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27     */
28 maya 4304
29 nmaya 9210 #ifndef KEX_H
30     #define KEX_H
31    
32 maya 4304 #include "ttxssh.h"
33    
34 nmaya 9210 // �N���C�A���g�����T�[�o������������
35     enum kex_init_proposals {
36     PROPOSAL_KEX_ALGS,
37     PROPOSAL_SERVER_HOST_KEY_ALGS,
38     PROPOSAL_ENC_ALGS_CTOS,
39     PROPOSAL_ENC_ALGS_STOC,
40     PROPOSAL_MAC_ALGS_CTOS,
41     PROPOSAL_MAC_ALGS_STOC,
42     PROPOSAL_COMP_ALGS_CTOS,
43     PROPOSAL_COMP_ALGS_STOC,
44     PROPOSAL_LANG_CTOS,
45     PROPOSAL_LANG_STOC,
46     PROPOSAL_MAX
47     };
48    
49     #define KEX_DEFAULT_KEX ""
50     #define KEX_DEFAULT_PK_ALG ""
51     #define KEX_DEFAULT_ENCRYPT ""
52     #define KEX_DEFAULT_MAC ""
53     #define KEX_DEFAULT_COMP ""
54     #define KEX_DEFAULT_LANG ""
55    
56     extern char *myproposal[PROPOSAL_MAX];
57    
58     typedef enum {
59     KEX_DH_NONE, /* disabled line */
60     KEX_DH_GRP1_SHA1,
61     KEX_DH_GRP14_SHA1,
62     KEX_DH_GEX_SHA1,
63     KEX_DH_GEX_SHA256,
64     KEX_ECDH_SHA2_256,
65     KEX_ECDH_SHA2_384,
66     KEX_ECDH_SHA2_521,
67     KEX_DH_GRP14_SHA256,
68     KEX_DH_GRP16_SHA512,
69     KEX_DH_GRP18_SHA512,
70     KEX_DH_UNKNOWN,
71     KEX_DH_MAX = KEX_DH_UNKNOWN,
72     } kex_algorithm;
73    
74     char* get_kex_algorithm_name(kex_algorithm kextype);
75     const EVP_MD* get_kex_algorithm_EVP_MD(kex_algorithm kextype);
76    
77     void normalize_kex_order(char *buf);
78     kex_algorithm choose_SSH2_kex_algorithm(char *server_proposal, char *my_proposal);
79     void SSH2_update_kex_myproposal(PTInstVar pvar);
80    
81    
82 doda 7027 // SSH_MSG_KEY_DH_GEX_REQUEST ���� min, n, max ��������������������/���� (RFC 4419)
83     #define GEX_GRP_LIMIT_MIN 1024
84     #define GEX_GRP_LIMIT_MAX 8192
85 doda 7028 // GexMinimalGroupSize �� 0 (�f�t�H���g(������)) ���������� min ���g���l
86     // RFC 8270 �� min �������l�� 2048 �������������������A������������ GEX_GRP_LIMIT_MIN
87     // �������������������������A�f�t�H���g���l�����X����
88     #define GEX_GRP_DEFAULT_MIN 2048
89 doda 5900
90 maya 4304 DH *dh_new_group1(void);
91     DH *dh_new_group14(void);
92 doda 6263 DH *dh_new_group15(void);
93     DH *dh_new_group16(void);
94 doda 6310 DH *dh_new_group17(void);
95     DH *dh_new_group18(void);
96 maya 4304 void dh_gen_key(PTInstVar pvar, DH *dh, int we_need /* bytes */ );
97     int dh_estimate(int bits);
98    
99 doda 6263 unsigned char *kex_dh_hash(const EVP_MD *evp_md,
100     char *client_version_string,
101 maya 4304 char *server_version_string,
102     char *ckexinit, int ckexinitlen,
103     char *skexinit, int skexinitlen,
104     u_char *serverhostkeyblob, int sbloblen,
105     BIGNUM *client_dh_pub,
106     BIGNUM *server_dh_pub,
107 maya 4305 BIGNUM *shared_secret,
108     unsigned int *hashlen);
109     unsigned char *kex_dh_gex_hash(const EVP_MD *evp_md,
110     char *client_version_string,
111 maya 4304 char *server_version_string,
112     char *ckexinit, int ckexinitlen,
113     char *skexinit, int skexinitlen,
114     u_char *serverhostkeyblob, int sbloblen,
115     int kexgex_min,
116     int kexgex_bits,
117     int kexgex_max,
118     BIGNUM *kexgex_p,
119     BIGNUM *kexgex_g,
120     BIGNUM *client_dh_pub,
121     BIGNUM *server_dh_pub,
122 maya 4305 BIGNUM *shared_secret,
123     unsigned int *hashlen);
124 maya 4314 unsigned char *kex_ecdh_hash(const EVP_MD *evp_md,
125     const EC_GROUP *ec_group,
126     char *client_version_string,
127     char *server_version_string,
128     char *ckexinit, int ckexinitlen,
129     char *skexinit, int skexinitlen,
130     u_char *serverhostkeyblob, int sbloblen,
131     const EC_POINT *client_dh_pub,
132     const EC_POINT *server_dh_pub,
133     BIGNUM *shared_secret,
134     unsigned int *hashlen);
135 maya 4304
136     int dh_pub_is_valid(DH *dh, BIGNUM *dh_pub);
137     void kex_derive_keys(PTInstVar pvar, int need, u_char *hash, BIGNUM *shared_secret,
138     char *session_id, int session_id_len);
139 nmaya 9210
140     #endif /* KEX_H */
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