try to help me X509_get_version

[Zulkiffli Mohd Nur]

hello.

i have a 
problem how to read version and serial number from certificate.
just now i 
have a certificate.

the code 
like this

#include 
stdio.h#include openssl/x509.h#include 
openssl/pem.h 

main(){ X509 
*x; FILE *fp; EVP_PKEY 
* pkey; long 
version; char * s; 

 if 
((fp=fopen("C:\\CryptoWeb\\backup 492001\\Haizad.crt","r")) != 
NULL) { 
x=X509_new(); if 
(PEM_read_X509(fp,x,NULL,NULL)!=NULL) 
printf("\nReading success!\n"); else 
 { printf ("\nError reading 
certificate!");exit 
(1);}printf("\nCertificate value: 
%s",x); version = 
X509_NAME_oneline(X509_get_version(x), NULL,NULL); 
printf ("\nVersion: %s\n",version);
s = 
X509_NAME_oneline(X509_get_subject_name(x),NULL,NULL);printf("\nSUBJECT 
NAME: %s\n",s);s = 
X509_NAME_oneline(X509_get_issuer_name(x),NULL,NULL);printf("\nISSUER 
NAME: %s\n",s);

/* Get public key - eay 
*/pkey=X509_get_pubkey(x);if (pkey == NULL) 
{printf ("\nPublic key error!");exit 
(1);}if (pkey == NULL) 
{printf ("\nPublic key is 
NULL!");exit 
(1);}elseprintf ("Public 
key found!");

printf("\nPublic 
key:");RSA_print_fp(stdout,pkey-pkey.rsa,0);

 
X509_free(x); fclose(fp); } 
 else  perror("ERROR, 
haizad.crt");

}
this code 
have some error.
can you 
help me give any example.
please 
reply as soon as possible.
thank 
you

Re: try to help me X509_get_version

[Vadim Fedukovich]

On Thu, 6 Sep 2001, Zulkiffli Mohd Nur wrote:


 hello.



 i have a problem how to read version and serial number from certificate.

X509_get_version() will return a long that could be printed using %ld
specification.


 just now i have a certificate.



 the code like this



 #include stdio.h
 #include openssl/x509.h
 #include openssl/pem.h




 main()
 {
X509 *x;
FILE *fp;
EVP_PKEY *  pkey;

long version;
   char * s;




if ((fp=fopen(C:\\CryptoWeb\\backup 492001\\Haizad.crt,r)) != NULL)
{
   x=X509_new();
   if (PEM_read_X509(fp,x,NULL,NULL)!=NULL)
  printf(\nReading success!\n);
else

{
 printf (\nError reading certificate!);
exit (1);
   }
   printf(\nCertificate value: %s,x);
  version = X509_NAME_oneline(X509_get_version(x), NULL,NULL);
  printf (\nVersion:  %s\n,version);


   s = X509_NAME_oneline(X509_get_subject_name(x),NULL,NULL);
   printf(\nSUBJECT NAME:  %s\n,s);
   s = X509_NAME_oneline(X509_get_issuer_name(x),NULL,NULL);
   printf(\nISSUER NAME:  %s\n,s);



   /* Get public key - eay */
   pkey=X509_get_pubkey(x);
   if (pkey == NULL) {
printf (\nPublic key error!);
exit (1);
   }

   if (pkey == NULL) {
 printf (\nPublic key is NULL!);
exit (1);
   }
   else
printf (Public key found!);



   printf(\nPublic key:);
   RSA_print_fp(stdout,pkey-pkey.rsa,0);



   X509_free(x);
   fclose(fp);
}
else
   perror(ERROR, haizad.crt);



 }

 this code have some error.

 can you help me give any example.

 please reply as soon as possible.

 thank you





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