libssh: wrapper.h Source File

libssh 0.9.6 The SSH library

wrapper.h
1 /*
2 * This file is part of the SSH Library
3 *
4 * Copyright (c) 2009 by Aris Adamantiadis
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #ifndef WRAPPER_H_
22 #define WRAPPER_H_
23
24 #include <stdbool.h>
25
26 #include "config.h"
27 #include "libssh/libssh.h"
28 #include "libssh/libcrypto.h"
29 #include "libssh/libgcrypt.h"
30 #include "libssh/libmbedcrypto.h"
31
32 enum ssh_kdf_digest {
33 SSH_KDF_SHA1=1,
34 SSH_KDF_SHA256,
35 SSH_KDF_SHA384,
36 SSH_KDF_SHA512
37 };
38
39 enum ssh_hmac_e {
40 SSH_HMAC_SHA1 = 1,
41 SSH_HMAC_SHA256,
42 SSH_HMAC_SHA512,
43 SSH_HMAC_MD5,
44 SSH_HMAC_AEAD_POLY1305,
45 SSH_HMAC_AEAD_GCM
46 };
47
48 enum ssh_des_e {
49 SSH_3DES,
50 SSH_DES
51 };
52
53 struct ssh_hmac_struct {
54 const char* name;
55 enum ssh_hmac_e hmac_type;
56 bool etm;
57 };
58
59 enum ssh_crypto_direction_e {
60 SSH_DIRECTION_IN = 1,
61 SSH_DIRECTION_OUT = 2,
62 SSH_DIRECTION_BOTH = 3,
63 };
64
65 struct ssh_cipher_struct;
66 struct ssh_crypto_struct;
67
68 typedef struct ssh_mac_ctx_struct *ssh_mac_ctx;
69 MD5CTX md5_init(void);
70 void md5_update(MD5CTX c, const void *data, unsigned long len);
71 void md5_final(unsigned char *md,MD5CTX c);
72
73 SHACTX sha1_init(void);
74 void sha1_update(SHACTX c, const void *data, unsigned long len);
75 void sha1_final(unsigned char *md,SHACTX c);
76 void sha1(const unsigned char *digest,int len,unsigned char *hash);
77
78 SHA256CTX sha256_init(void);
79 void sha256_update(SHA256CTX c, const void *data, unsigned long len);
80 void sha256_final(unsigned char *md,SHA256CTX c);
81 void sha256(const unsigned char *digest, int len, unsigned char *hash);
82
83 SHA384CTX sha384_init(void);
84 void sha384_update(SHA384CTX c, const void *data, unsigned long len);
85 void sha384_final(unsigned char *md,SHA384CTX c);
86 void sha384(const unsigned char *digest, int len, unsigned char *hash);
87
88 SHA512CTX sha512_init(void);
89 void sha512_update(SHA512CTX c, const void *data, unsigned long len);
90 void sha512_final(unsigned char *md,SHA512CTX c);
91 void sha512(const unsigned char *digest, int len, unsigned char *hash);
92
93 void evp(int nid, unsigned char *digest, int len, unsigned char *hash, unsigned int *hlen);
94 EVPCTX evp_init(int nid);
95 void evp_update(EVPCTX ctx, const void *data, unsigned long len);
96 void evp_final(EVPCTX ctx, unsigned char *md, unsigned int *mdlen);
97
98 HMACCTX hmac_init(const void *key,int len, enum ssh_hmac_e type);
99 void hmac_update(HMACCTX c, const void *data, unsigned long len);
100 void hmac_final(HMACCTX ctx,unsigned char *hashmacbuf,unsigned int *len);
101 size_t hmac_digest_len(enum ssh_hmac_e type);
102
103 int ssh_kdf(struct ssh_crypto_struct *crypto,
104 unsigned char *key, size_t key_len,
105 int key_type, unsigned char *output,
106 size_t requested_len);
107
108 int crypt_set_algorithms_client(ssh_session session);
109 int crypt_set_algorithms_server(ssh_session session);
110 struct ssh_crypto_struct *crypto_new(void);
111 void crypto_free(struct ssh_crypto_struct *crypto);
112
113 void ssh_reseed(void);
114 int ssh_crypto_init(void);
115 void ssh_crypto_finalize(void);
116
117 void ssh_cipher_clear(struct ssh_cipher_struct *cipher);
118 struct ssh_hmac_struct *ssh_get_hmactab(void);
119 struct ssh_cipher_struct *ssh_get_ciphertab(void);
120 const char *ssh_hmac_type_to_string(enum ssh_hmac_e hmac_type, bool etm);
121
122 #endif /* WRAPPER_H_ */
ssh_cipher_struct
Definition: crypto.h:160
ssh_crypto_struct
Definition: crypto.h:106
ssh_hmac_struct
Definition: wrapper.h:53
ssh_mac_ctx_struct
Definition: kdf.c:43
ssh_session_struct
Definition: session.h:109