1 /*	$NetBSD: dst.h,v 1.1.1.4 2009/04/12 16:35:44 christos Exp $	*/
2 
3 #ifndef DST_H
4 #define DST_H
5 
6 #ifndef HAS_DST_KEY
7 typedef struct dst_key {
8 	char	*dk_key_name;   /*%< name of the key */
9 	int	dk_key_size;    /*%< this is the size of the key in bits */
10 	int	dk_proto;       /*%< what protocols this key can be used for */
11 	int	dk_alg;         /*%< algorithm number from key record */
12 	u_int32_t dk_flags;     /*%< and the flags of the public key */
13 	u_int16_t dk_id;        /*%< identifier of the key */
14 } DST_KEY;
15 #endif /* HAS_DST_KEY */
16 /*
17  * do not taint namespace
18  */
19 #define	dst_bsafe_init		__dst_bsafe_init
20 #define	dst_buffer_to_key	__dst_buffer_to_key
21 #define	dst_check_algorithm	__dst_check_algorithm
22 #define	dst_compare_keys	__dst_compare_keys
23 #define	dst_cylink_init		__dst_cylink_init
24 #define	dst_dnskey_to_key	__dst_dnskey_to_key
25 #define	dst_eay_dss_init	__dst_eay_dss_init
26 #define	dst_free_key		__dst_free_key
27 #define	dst_generate_key	__dst_generate_key
28 #define	dst_hmac_md5_init	__dst_hmac_md5_init
29 #define	dst_init		__dst_init
30 #define	dst_key_to_buffer	__dst_key_to_buffer
31 #define	dst_key_to_dnskey	__dst_key_to_dnskey
32 #define	dst_read_key		__dst_read_key
33 #define	dst_rsaref_init		__dst_rsaref_init
34 #define	dst_s_build_filename	__dst_s_build_filename
35 #define	dst_s_calculate_bits	__dst_s_calculate_bits
36 #define	dst_s_conv_bignum_b64_to_u8	__dst_s_conv_bignum_b64_to_u8
37 #define	dst_s_conv_bignum_u8_to_b64	__dst_s_conv_bignum_u8_to_b64
38 #define	dst_s_dns_key_id	__dst_s_dns_key_id
39 #define	dst_s_dump		__dst_s_dump
40 #define	dst_s_filename_length	__dst_s_filename_length
41 #define	dst_s_fopen		__dst_s_fopen
42 #define	dst_s_get_int16		__dst_s_get_int16
43 #define	dst_s_get_int32		__dst_s_get_int32
44 #define	dst_s_id_calc		__dst_s_id_calc
45 #define	dst_s_put_int16		__dst_s_put_int16
46 #define	dst_s_put_int32		__dst_s_put_int32
47 #define	dst_s_quick_random	__dst_s_quick_random
48 #define	dst_s_quick_random_set	__dst_s_quick_random_set
49 #define	dst_s_random		__dst_s_random
50 #define	dst_s_semi_random	__dst_s_semi_random
51 #define	dst_s_verify_str	__dst_s_verify_str
52 #define	dst_sig_size		__dst_sig_size
53 #define	dst_sign_data		__dst_sign_data
54 #define	dst_verify_data		__dst_verify_data
55 #define	dst_write_key		__dst_write_key
56 
57 /*
58  * DST Crypto API defintions
59  */
60 void     dst_init(void);
61 int      dst_check_algorithm(const int);
62 
63 
64 int dst_sign_data(const int,	 	/*!<   specifies INIT/UPDATE/FINAL/ALL  */
65 		  DST_KEY *,	 	/*!<   the key to use  */
66 		  void **,	 	/*!<   pointer to state structure  */
67 		  const u_char *,	/*!<   data to be signed  */
68 		  const int,	 	/*!<   length of input data  */
69 		  u_char *,	 	/*!<   buffer to write signature to  */
70 		  const int);	 	/*!<   size of output buffer  */
71 int dst_verify_data(const int,	 	/*!<   specifies INIT/UPDATE/FINAL/ALL  */
72 		    DST_KEY *,	 	/*!<   the key to use  */
73 		    void **,	 	/*!<   pointer to state structure  */
74 		    const u_char *,	/*!<   data to be verified  */
75 		    const int,	 	/*!<   length of input data  */
76 		    const u_char *,	/*!<   buffer containing signature  */
77 		    const int);	 	/*!<   length of signature  */
78 DST_KEY *dst_read_key(const char *,	/*!<   name of key  */
79 		      const u_int16_t,	/*!<   key tag identifier  */
80 		      const int,	/*!<   key algorithm  */
81 		      const int);	/*!<   Private/PublicKey wanted */
82 int      dst_write_key(const DST_KEY *,	/*!<   key to write out  */
83 		       const int); 	/*!<   Public/Private  */
84 DST_KEY *dst_dnskey_to_key(const char *,	/*!<   KEY record name  */
85 			   const u_char *,	/*!<   KEY RDATA  */
86 			   const int);		/*!<   size of input buffer */
87 int      dst_key_to_dnskey(const DST_KEY *,	/*!<   key to translate  */
88 			   u_char *,		/*!<   output buffer  */
89 			   const int);		/*!<   size of out_storage */
90 DST_KEY *dst_buffer_to_key(const char *,  	/*!<   name of the key  */
91 			   const int,	  	/*!<   algorithm  */
92 			   const int,	  	/*!<   dns flags  */
93 			   const int,	  	/*!<   dns protocol  */
94 			   const u_char *, 	/*!<   key in dns wire fmt  */
95 			   const int);	  	/*!<   size of key  */
96 int     dst_key_to_buffer(DST_KEY *, u_char *, int);
97 
98 DST_KEY *dst_generate_key(const char *,    	/*!<   name of new key  */
99 			  const int,       	/*!<   key algorithm to generate  */
100 			  const int,      	/*!<   size of new key  */
101 			  const int,       	/*!<   alg dependent parameter */
102 			  const int,     	/*!<   key DNS flags  */
103 			  const int);		/*!<   key DNS protocol  */
104 DST_KEY *dst_free_key(DST_KEY *);
105 int      dst_compare_keys(const DST_KEY *, const DST_KEY *);
106 
107 int	dst_sig_size(DST_KEY *);
108 
109 
110 /* support for dns key tags/ids */
111 u_int16_t dst_s_dns_key_id(const u_char *, const int);
112 u_int16_t dst_s_id_calc(const u_char *, const int);
113 
114 /* Used by callers as well as by the library.  */
115 #define RAW_KEY_SIZE    8192        /*%< large enough to store any key */
116 /* DST_API control flags */
117 /* These are used used in functions dst_sign_data and dst_verify_data */
118 #define SIG_MODE_INIT		1  /*%< initialize digest */
119 #define SIG_MODE_UPDATE		2  /*%< add data to digest */
120 #define SIG_MODE_FINAL		4  /*%< generate/verify signature */
121 #define SIG_MODE_ALL		(SIG_MODE_INIT|SIG_MODE_UPDATE|SIG_MODE_FINAL)
122 
123 /* Flags for dst_read_private_key()  */
124 #define DST_FORCE_READ		0x1000000
125 #define DST_CAN_SIGN		0x010F
126 #define DST_NO_AUTHEN		0x8000
127 #define DST_EXTEND_FLAG         0x1000
128 #define DST_STANDARD		0
129 #define DST_PRIVATE             0x2000000
130 #define DST_PUBLIC              0x4000000
131 #define DST_RAND_SEMI           1
132 #define DST_RAND_STD            2
133 #define DST_RAND_KEY            3
134 #define DST_RAND_DSS            4
135 
136 
137 /* DST algorithm codes */
138 #define KEY_RSA			1
139 #define KEY_DH			2
140 #define KEY_DSA			3
141 #define KEY_PRIVATE		254
142 #define KEY_EXPAND		255
143 #define KEY_HMAC_MD5		157
144 #define KEY_HMAC_SHA1		158
145 #define UNKNOWN_KEYALG		0
146 #define DST_MAX_ALGS            KEY_HMAC_SHA1
147 
148 /* DST constants to locations in KEY record  changes in new KEY record */
149 #define DST_FLAGS_SIZE		2
150 #define DST_KEY_PROT		2
151 #define DST_KEY_ALG		3
152 #define DST_EXT_FLAG            4
153 #define DST_KEY_START		4
154 
155 #ifndef SIGN_F_NOKEY
156 #define SIGN_F_NOKEY		0xC000
157 #endif
158 
159 /* error codes from dst routines */
160 #define SIGN_INIT_FAILURE	(-23)
161 #define SIGN_UPDATE_FAILURE	(-24)
162 #define SIGN_FINAL_FAILURE	(-25)
163 #define VERIFY_INIT_FAILURE	(-26)
164 #define VERIFY_UPDATE_FAILURE	(-27)
165 #define VERIFY_FINAL_FAILURE	(-28)
166 #define MISSING_KEY_OR_SIGNATURE (-30)
167 #define UNSUPPORTED_KEYALG	(-31)
168 
169 #endif /* DST_H */
170 /*! \file */
171