value is always different

[Ali Khalfan]

The full code is just a few lines more I'll just post it all...., seems
some sort of randomization is being added.......thanks for your help



#include <stdio.h>

#include <gcrypt.h>


int main()
{
    int err;
    gcry_md_hd_t ctx;

    char key[32] ="The fish is under the water";

    char plain_text[256];

   

    strcpy(plain_text,"It was the best of times it was the worst of
times it was the happiest ");

    err = gcry_md_open(&ctx,GCRY_MD_SHA256, GCRY_MD_FLAG_HMAC);

    gcry_md_setkey (ctx, key, 32);

    gcry_md_write(ctx, &plain_text,sizeof plain_text);
   
    unsigned char *digest = gcry_md_read (ctx, GCRY_MD_SHA256);
   

    int index = 0;
     for (index; index<32; index++)
        printf("%02X", (unsigned char)digest[index]);
   
    gcry_md_close (ctx);


    return 0;
}

-------- Original Message  --------
Subject: Re: value is always different
From: Brad Hards <bradh at frogmouth.net>
To: help-gnutls at gnu.org
Date: Mon Apr 26 2010 04:38:09 GMT-0400 (EDT)
> On Monday 26 April 2010 05:17:22 pm Ali Khalfan wrote:
>   
>>     err = gcry_md_open(&ctx,GCRY_MD_SHA256, GCRY_MD_FLAG_HMAC);
>>     gcry_md_setkey (ctx, key, 32);
>>     gcry_md_write(ctx, &plain_text,sizeof plain_text);
>>     unsigned char *digest = gcry_md_read (ctx, GCRY_MD_SHA256);
>>     
> This looks roughly right. Can you post a minimal compilable example that shows 
> what the rest of the code looks like?
>
> Brad
>
>
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