OK, thank you very much for the informations! 
 
 
------------------- 
> On Thu, Jul 17, 2003, Pascal VERRECCHIA wrote: 
>  
> > > >    
> > > > I'd like to find a program which permits me to obtain the 
fields   
> > > > following of a certificate :   
> > > >    
> > > > - issuer   
> > > > - issuerAltName   
> > > > - subject   
> > > > - subjectAltName   
> > > > - cRLDistributionPoint   
> > > >    
> > >   
> > > Depends on what format you want those fields in. The 'x509' 
utility  
> > can print  
> > > out all those fields in human readable form.  
> >   
> > How can I do that?  
> > I have to use this fields for create a program of certificate  
> > verification with OCSP. I have to obtain this informations for  
> > veifying the certification hierarchy.  
> > Thank you for your help!   
> >   
>  
> Well if you want them in a program you need to use the X509 and 
X509v3 APIs.  
>  
> The functions X509_get_subject_name, X509_get_issuer_name and 
> X509_get_serialNumber along with X509_get_ext_d2i for all the 
extensions 
> will do the trick. 
>  
> Steve. 
> -- 
> Dr Stephen N. Henson. 
> Core developer of the   OpenSSL project: http://www.openssl.org/ 
> Freelance consultant see: http://www.drh-consultancy.demon.co.uk/ 
> Email: [EMAIL PROTECTED], PGP key: via homepage. 
> 
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