praveens wrote:
I want to know the openssl APIs to convert a certificate from .pem to .der
format.
I know about the openssl command which does the same. But Can you tell me
how to do it in a Cprogram using openssl or any other method
Hi,
load your x509 file using
loaded = PEM_read_X509(f, NULL, NULL, NULL); // load in pem
with f = fopen( fileName,"rb");
and loaded a X509*
save it :
BIO *out=NULL;
if ((out=BIO_new(BIO_s_file())) == NULL)
return -1;
if(BIO_write_filename(out, filename2) <= 0)
return -1;
if (! i2d_X509_bio(out, loaded)) // save it in der.
return -1;
return 0; // success
filename is the file's name of pem certificate, filename2 is the file's
name for der certificate.
(joke)You can also use syscall (/joke)
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