value is always different

[Brad Hards]

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