LCOV - code coverage report
Current view: top level - ec - ec_print.c (source / functions) Hit Total Coverage
Test: lcov_coverage_final.info Lines: 0 56 0.0 %
Date: 2014-08-02 Functions: 0 4 0.0 %
Branches: 0 32 0.0 %

           Branch data     Line data    Source code
       1                 :            : /* crypto/ec/ec_print.c */
       2                 :            : /* ====================================================================
       3                 :            :  * Copyright (c) 1998-2002 The OpenSSL Project.  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                 :            :  *
      12                 :            :  * 2. Redistributions in binary form must reproduce the above copyright
      13                 :            :  *    notice, this list of conditions and the following disclaimer in
      14                 :            :  *    the documentation and/or other materials provided with the
      15                 :            :  *    distribution.
      16                 :            :  *
      17                 :            :  * 3. All advertising materials mentioning features or use of this
      18                 :            :  *    software must display the following acknowledgment:
      19                 :            :  *    "This product includes software developed by the OpenSSL Project
      20                 :            :  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
      21                 :            :  *
      22                 :            :  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
      23                 :            :  *    endorse or promote products derived from this software without
      24                 :            :  *    prior written permission. For written permission, please contact
      25                 :            :  *    openssl-core@openssl.org.
      26                 :            :  *
      27                 :            :  * 5. Products derived from this software may not be called "OpenSSL"
      28                 :            :  *    nor may "OpenSSL" appear in their names without prior written
      29                 :            :  *    permission of the OpenSSL Project.
      30                 :            :  *
      31                 :            :  * 6. Redistributions of any form whatsoever must retain the following
      32                 :            :  *    acknowledgment:
      33                 :            :  *    "This product includes software developed by the OpenSSL Project
      34                 :            :  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
      35                 :            :  *
      36                 :            :  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
      37                 :            :  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      38                 :            :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
      39                 :            :  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
      40                 :            :  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      41                 :            :  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
      42                 :            :  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
      43                 :            :  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      44                 :            :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
      45                 :            :  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
      46                 :            :  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
      47                 :            :  * OF THE POSSIBILITY OF SUCH DAMAGE.
      48                 :            :  * ====================================================================
      49                 :            :  *
      50                 :            :  * This product includes cryptographic software written by Eric Young
      51                 :            :  * (eay@cryptsoft.com).  This product includes software written by Tim
      52                 :            :  * Hudson (tjh@cryptsoft.com).
      53                 :            :  *
      54                 :            :  */
      55                 :            : 
      56                 :            : #include <openssl/crypto.h>
      57                 :            : #include "ec_lcl.h"
      58                 :            : 
      59                 :          0 : BIGNUM *EC_POINT_point2bn(const EC_GROUP *group, 
      60                 :            :                           const EC_POINT *point, 
      61                 :            :                           point_conversion_form_t form,
      62                 :            :                           BIGNUM *ret,
      63                 :            :                           BN_CTX *ctx)
      64                 :            :         {
      65                 :          0 :         size_t        buf_len=0;
      66                 :            :         unsigned char *buf;
      67                 :            : 
      68                 :          0 :         buf_len = EC_POINT_point2oct(group, point, form,
      69                 :            :                                      NULL, 0, ctx);
      70         [ #  # ]:          0 :         if (buf_len == 0)
      71                 :            :                 return NULL;
      72                 :            : 
      73         [ #  # ]:          0 :         if ((buf = OPENSSL_malloc(buf_len)) == NULL)
      74                 :            :                 return NULL;
      75                 :            : 
      76         [ #  # ]:          0 :         if (!EC_POINT_point2oct(group, point, form, buf, buf_len, ctx))
      77                 :            :                 {
      78                 :          0 :                 OPENSSL_free(buf);
      79                 :          0 :                 return NULL;
      80                 :            :                 }
      81                 :            : 
      82                 :          0 :         ret = BN_bin2bn(buf, buf_len, ret);
      83                 :            : 
      84                 :          0 :         OPENSSL_free(buf);
      85                 :            : 
      86                 :          0 :         return ret;
      87                 :            : }
      88                 :            : 
      89                 :          0 : EC_POINT *EC_POINT_bn2point(const EC_GROUP *group,
      90                 :            :                             const BIGNUM *bn,
      91                 :            :                             EC_POINT *point, 
      92                 :            :                             BN_CTX *ctx)
      93                 :            :         {
      94                 :          0 :         size_t        buf_len=0;
      95                 :            :         unsigned char *buf;
      96                 :            :         EC_POINT      *ret;
      97                 :            : 
      98         [ #  # ]:          0 :         if ((buf_len = BN_num_bytes(bn)) == 0) return NULL;
      99                 :          0 :         buf = OPENSSL_malloc(buf_len);
     100         [ #  # ]:          0 :         if (buf == NULL)
     101                 :            :                 return NULL;
     102                 :            : 
     103         [ #  # ]:          0 :         if (!BN_bn2bin(bn, buf)) 
     104                 :            :                 {
     105                 :          0 :                 OPENSSL_free(buf);
     106                 :          0 :                 return NULL;
     107                 :            :                 }
     108                 :            : 
     109         [ #  # ]:          0 :         if (point == NULL)
     110                 :            :                 {
     111         [ #  # ]:          0 :                 if ((ret = EC_POINT_new(group)) == NULL)
     112                 :            :                         {
     113                 :          0 :                         OPENSSL_free(buf);
     114                 :          0 :                         return NULL;
     115                 :            :                         }
     116                 :            :                 }
     117                 :            :         else
     118                 :            :                 ret = point;
     119                 :            : 
     120         [ #  # ]:          0 :         if (!EC_POINT_oct2point(group, ret, buf, buf_len, ctx))
     121                 :            :                 {
     122         [ #  # ]:          0 :                 if (point == NULL)
     123                 :          0 :                         EC_POINT_clear_free(ret);
     124                 :          0 :                 OPENSSL_free(buf);
     125                 :          0 :                 return NULL;
     126                 :            :                 }
     127                 :            : 
     128                 :          0 :         OPENSSL_free(buf);
     129                 :          0 :         return ret;
     130                 :            :         }
     131                 :            : 
     132                 :            : static const char *HEX_DIGITS = "0123456789ABCDEF";
     133                 :            : 
     134                 :            : /* the return value must be freed (using OPENSSL_free()) */
     135                 :          0 : char *EC_POINT_point2hex(const EC_GROUP *group,
     136                 :            :                          const EC_POINT *point,
     137                 :            :                          point_conversion_form_t form,
     138                 :            :                          BN_CTX *ctx)
     139                 :            :         {
     140                 :            :         char          *ret, *p;
     141                 :          0 :         size_t        buf_len=0,i;
     142                 :            :         unsigned char *buf, *pbuf;
     143                 :            : 
     144                 :          0 :         buf_len = EC_POINT_point2oct(group, point, form,
     145                 :            :                                      NULL, 0, ctx);
     146         [ #  # ]:          0 :         if (buf_len == 0)
     147                 :            :                 return NULL;
     148                 :            : 
     149         [ #  # ]:          0 :         if ((buf = OPENSSL_malloc(buf_len)) == NULL)
     150                 :            :                 return NULL;
     151                 :            : 
     152         [ #  # ]:          0 :         if (!EC_POINT_point2oct(group, point, form, buf, buf_len, ctx))
     153                 :            :                 {
     154                 :          0 :                 OPENSSL_free(buf);
     155                 :          0 :                 return NULL;
     156                 :            :                 }
     157                 :            : 
     158                 :          0 :         ret = (char *)OPENSSL_malloc(buf_len*2+2);
     159         [ #  # ]:          0 :         if (ret == NULL)
     160                 :            :                 {
     161                 :          0 :                 OPENSSL_free(buf);
     162                 :          0 :                 return NULL;
     163                 :            :                 }
     164                 :            :         p = ret;
     165                 :            :         pbuf = buf;
     166         [ #  # ]:          0 :         for (i=buf_len; i > 0; i--)
     167                 :            :                 {
     168                 :          0 :                         int v = (int) *(pbuf++);
     169                 :          0 :                         *(p++)=HEX_DIGITS[v>>4];
     170                 :          0 :                         *(p++)=HEX_DIGITS[v&0x0F];
     171                 :            :                 }
     172                 :          0 :         *p='\0';
     173                 :            : 
     174                 :          0 :         OPENSSL_free(buf);
     175                 :            : 
     176                 :          0 :         return ret;
     177                 :            :         }
     178                 :            : 
     179                 :          0 : EC_POINT *EC_POINT_hex2point(const EC_GROUP *group,
     180                 :            :                              const char *buf,
     181                 :            :                              EC_POINT *point,
     182                 :            :                              BN_CTX *ctx)
     183                 :            :         {
     184                 :          0 :         EC_POINT *ret=NULL;
     185                 :          0 :         BIGNUM   *tmp_bn=NULL;
     186                 :            : 
     187         [ #  # ]:          0 :         if (!BN_hex2bn(&tmp_bn, buf))
     188                 :            :                 return NULL;
     189                 :            : 
     190                 :          0 :         ret = EC_POINT_bn2point(group, tmp_bn, point, ctx);
     191                 :            : 
     192                 :          0 :         BN_clear_free(tmp_bn);
     193                 :            : 
     194                 :          0 :         return ret;
     195                 :            :         }

Generated by: LCOV version 1.9