Re: Convert x509 der to x509 pem

[Joe Gluck]

You should use some thing like this:
 

FILE * file = NULL;

X509 * cert = NULL;

// Open the DER file
file = fopen("der_file_name", "rb");
// load it into a X509 object

cert = d2i_X509_fp(file, NULL);

fclose(file);

file = fopen("pem_file_name", "w");

//write the X509 object to a PEM file
int PEM_write_X509(file, cert);

fclose(file);

X509_free(cert);

 

You would also need to check for errors.

 

Joe


On 4/3/06, Oscar So <[EMAIL PROTECTED]> wrote:
>
> Hi,
>  
> How do I convert x509 der to x509 pem using OpenSSL API ?
>  
> And, for which would be similar to the following:
> "openssl x509 -in cert.pem -inform PEM -out cert.der -outform DER " but in a
> way pragmatically.
>  
> Thanks,
> Oscar
>