lib/libc/include/isc/dst.h

   1 /*      $NetBSD: dst.h,v 1.2 2014/08/03 19:14:24 wiz 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 definitions
  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 */