34 //#include "stdafx.h"

    34 //#include "stdafx.h"

    35 

    35 

    36 

    36 

    37 #include <libc/string.h>     /* for memcpy() etc.        */

    37 #include <libc/string.h>     /* for memcpy() etc.        */

    38 #include <libc/stdlib.h>     /* for _lrotl with VC++     */

    38 #include <libc/stdlib.h>     /* for _lrotl with VC++     */

    39 

    44 

    40 #include "sha1.h"

    45 #include "sha1.h"

    41 #include "hmac.h"

    46 #include "hmac.h"

    42 

    47 

    43 void derive_key(const unsigned char pwd[],  /* the PASSWORD     */

    48 void derive_key(const unsigned char pwd[],  /* the PASSWORD     */

   206             sha1_end(cx->key, cx->ctx);         /* store the result as the  */

   211             sha1_end(cx->key, cx->ctx);         /* store the result as the  */

   207             cx->klen = OUT_BLOCK_LENGTH;        /* key and set new length   */

   212             cx->klen = OUT_BLOCK_LENGTH;        /* key and set new length   */

   208         }

   213         }

   209 

   214 

   210         /* pad the key if necessary */

   215         /* pad the key if necessary */

   211         memset(cx->key + cx->klen, 0, IN_BLOCK_LENGTH - cx->klen);

   217         memset(cx->key + cx->klen, 0, IN_BLOCK_LENGTH - cx->klen);

   212 

   218 

   213         /* xor ipad into key value  */

   219         /* xor ipad into key value  */

   214         for(i = 0; i < (IN_BLOCK_LENGTH >> 2); ++i)

   220         for(i = 0; i < (IN_BLOCK_LENGTH >> 2); ++i)

   215             ((unsigned long*)cx->key)[i] ^= 0x36363636;

   221             ((unsigned long*)cx->key)[i] ^= 0x36363636;