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      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