On Fri August 29 2008 11:35, Michael Luich wrote:
> Hello everyone, here's what's driving me nuts. I'm sure i'm missing
> something simple, but why isn't the encrypted message coming out of  "
> BIO_get_mem_data(out, &enc_msg); " Null terminated ?
> 

Because null is a valid encrypted value of a byte.

Mike
> Full code below.
> 
> Mike Luich
> 
> 
>         fprintf (stderr, "ENTER: %s in %s, line %d.\n",
>                  __FUNCTION__, __FILE__, __LINE__);
> 
> 
>       const    EVP_CIPHER *cipher= EVP_des_ede3_cbc();
>       STACK_OF(X509) *certs= sk_X509_new_null();
>       X509 *tmp;
>       BIO *in, *out, *b64_bio;
>       PKCS7 *pkcs7;
>       char *enc_msg, *ptr;
> 
>       OpenSSL_add_all_algorithms();
>       ERR_load_crypto_strings();
>       RAND_load_file("/dev/urandom", 1024);
> 
>           fprintf (stderr, "START: %s in %s, line %d.\n",
>                    __FUNCTION__, __FILE__, __LINE__);
> 
>       in = BIO_new_mem_buf(clear_msg, -1);
>       out = BIO_new(BIO_s_mem());
> 
>       if (!(tmp = PEM_read_X509(pub_cert, NULL, NULL, NULL))) {
>           fprintf (stderr, "Error Opening Public Key");
>       }
>       sk_X509_push(certs,tmp);
>       fclose (pub_cert);
> 
>       if (!(pkcs7 = PKCS7_encrypt(certs, in, cipher, PKCS7_BINARY))) {
>           fprintf (stderr,"Error making PKC#7object : %s in %s, line %d.\n",
>                             __FUNCTION__, __FILE__, __LINE__);
>       }
> 
>       if (SMIME_write_PKCS7(out, pkcs7, in, 0) !=1)
>       {
>           fprintf (stderr,"Error writing SMIME : %s in %s, line %d.\n",
>                             __FUNCTION__, __FILE__, __LINE__);
>       }
> 
>           fprintf (stderr,"Encryption success : %s in %s, line %d.\n",
>                         __FUNCTION__, __FILE__, __LINE__);
> 
>       BIO_get_mem_data(out, &enc_msg);
> 
>           fprintf (stderr,"Data out of bio: %s in %s, line %d.\n %s\n",
>                    __FUNCTION__, __FILE__, __LINE__, enc_msg);
> 
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