LCOV - code coverage report
Current view: top level - lib/src - crypto.c (source / functions) Hit Total Coverage
Test: GNU SASL Lines: 18 24 75.0 %
Date: 2012-05-28 Functions: 5 6 83.3 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 4 8 50.0 %

           Branch data     Line data    Source code
       1                 :            : /* crypto.c --- Simple crypto wrappers for applications.
       2                 :            :  * Copyright (C) 2002-2012 Simon Josefsson
       3                 :            :  *
       4                 :            :  * This file is part of GNU SASL Library.
       5                 :            :  *
       6                 :            :  * GNU SASL Library is free software; you can redistribute it and/or
       7                 :            :  * modify it under the terms of the GNU Lesser General Public License
       8                 :            :  * as published by the Free Software Foundation; either version 2.1 of
       9                 :            :  * the License, or (at your option) any later version.
      10                 :            :  *
      11                 :            :  * GNU SASL 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 License along with GNU SASL Library; if not, write to the
      18                 :            :  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
      19                 :            :  * Boston, MA 02110-1301, USA.
      20                 :            :  *
      21                 :            :  */
      22                 :            : 
      23                 :            : #include "internal.h"
      24                 :            : 
      25                 :            : #include "gc.h"
      26                 :            : 
      27                 :            : /**
      28                 :            :  * gsasl_nonce:
      29                 :            :  * @data: output array to be filled with unpredictable random data.
      30                 :            :  * @datalen: size of output array.
      31                 :            :  *
      32                 :            :  * Store unpredictable data of given size in the provided buffer.
      33                 :            :  *
      34                 :            :  * Return value: Returns %GSASL_OK iff successful.
      35                 :            :  **/
      36                 :            : int
      37                 :        212 : gsasl_nonce (char *data, size_t datalen)
      38                 :            : {
      39                 :        212 :   return gc_nonce (data, datalen);
      40                 :            : }
      41                 :            : 
      42                 :            : /**
      43                 :            :  * gsasl_random:
      44                 :            :  * @data: output array to be filled with strong random data.
      45                 :            :  * @datalen: size of output array.
      46                 :            :  *
      47                 :            :  * Store cryptographically strong random data of given size in the
      48                 :            :  * provided buffer.
      49                 :            :  *
      50                 :            :  * Return value: Returns %GSASL_OK iff successful.
      51                 :            :  **/
      52                 :            : int
      53                 :          0 : gsasl_random (char *data, size_t datalen)
      54                 :            : {
      55                 :          0 :   return gc_random (data, datalen);
      56                 :            : }
      57                 :            : 
      58                 :            : /**
      59                 :            :  * gsasl_md5:
      60                 :            :  * @in: input character array of data to hash.
      61                 :            :  * @inlen: length of input character array of data to hash.
      62                 :            :  * @out: newly allocated character array with hash of data.
      63                 :            :  *
      64                 :            :  * Compute hash of data using MD5.  The @out buffer must be
      65                 :            :  * deallocated by the caller.
      66                 :            :  *
      67                 :            :  * Return value: Returns %GSASL_OK iff successful.
      68                 :            :  **/
      69                 :            : int
      70                 :         31 : gsasl_md5 (const char *in, size_t inlen, char *out[16])
      71                 :            : {
      72                 :         31 :   *out = malloc (16);
      73         [ -  + ]:         31 :   if (!*out)
      74                 :          0 :     return GSASL_MALLOC_ERROR;
      75                 :         31 :   return gc_md5 (in, inlen, *out);
      76                 :            : }
      77                 :            : 
      78                 :            : /**
      79                 :            :  * gsasl_hmac_md5:
      80                 :            :  * @key: input character array with key to use.
      81                 :            :  * @keylen: length of input character array with key to use.
      82                 :            :  * @in: input character array of data to hash.
      83                 :            :  * @inlen: length of input character array of data to hash.
      84                 :            :  * @outhash: newly allocated character array with keyed hash of data.
      85                 :            :  *
      86                 :            :  * Compute keyed checksum of data using HMAC-MD5.  The @outhash buffer
      87                 :            :  * must be deallocated by the caller.
      88                 :            :  *
      89                 :            :  * Return value: Returns %GSASL_OK iff successful.
      90                 :            :  **/
      91                 :            : int
      92                 :          1 : gsasl_hmac_md5 (const char *key, size_t keylen,
      93                 :            :                 const char *in, size_t inlen, char *outhash[16])
      94                 :            : {
      95                 :          1 :   *outhash = malloc (16);
      96         [ -  + ]:          1 :   if (!*outhash)
      97                 :          0 :     return GSASL_MALLOC_ERROR;
      98                 :          1 :   return gc_hmac_md5 (key, keylen, in, inlen, *outhash);
      99                 :            : }
     100                 :            : 
     101                 :            : /**
     102                 :            :  * gsasl_sha1:
     103                 :            :  * @in: input character array of data to hash.
     104                 :            :  * @inlen: length of input character array of data to hash.
     105                 :            :  * @out: newly allocated character array with hash of data.
     106                 :            :  *
     107                 :            :  * Compute hash of data using SHA1.  The @out buffer must be
     108                 :            :  * deallocated by the caller.
     109                 :            :  *
     110                 :            :  * Return value: Returns %GSASL_OK iff successful.
     111                 :            :  *
     112                 :            :  * Since: 1.3
     113                 :            :  **/
     114                 :            : int
     115                 :        125 : gsasl_sha1 (const char *in, size_t inlen, char *out[20])
     116                 :            : {
     117                 :        125 :   *out = malloc (20);
     118         [ -  + ]:        125 :   if (!*out)
     119                 :          0 :     return GSASL_MALLOC_ERROR;
     120                 :        125 :   return gc_sha1 (in, inlen, *out);
     121                 :            : }
     122                 :            : 
     123                 :            : /**
     124                 :            :  * gsasl_hmac_sha1:
     125                 :            :  * @key: input character array with key to use.
     126                 :            :  * @keylen: length of input character array with key to use.
     127                 :            :  * @in: input character array of data to hash.
     128                 :            :  * @inlen: length of input character array of data to hash.
     129                 :            :  * @outhash: newly allocated character array with keyed hash of data.
     130                 :            :  *
     131                 :            :  * Compute keyed checksum of data using HMAC-SHA1.  The @outhash buffer
     132                 :            :  * must be deallocated by the caller.
     133                 :            :  *
     134                 :            :  * Return value: Returns %GSASL_OK iff successful.
     135                 :            :  *
     136                 :            :  * Since: 1.3
     137                 :            :  **/
     138                 :            : int
     139                 :        332 : gsasl_hmac_sha1 (const char *key, size_t keylen,
     140                 :            :                  const char *in, size_t inlen, char *outhash[20])
     141                 :            : {
     142                 :        332 :   *outhash = malloc (20);
     143         [ -  + ]:        332 :   if (!*outhash)
     144                 :          0 :     return GSASL_MALLOC_ERROR;
     145                 :        332 :   return gc_hmac_sha1 (key, keylen, in, inlen, *outhash);
     146                 :            : }

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