Abdou, I will try to answer at least some of your questions ...
If the sixth most significant bit of the identifier octet is 1, the encoding is constructed. Otherwise, the encoding is primitive. You can control the default tagging method at the top of your ASN.1 module. IMPLICIT changes the tag of the underlying type. EXPLICIT derives a type from an underlying type by adding an outer context-specific constructed tag. For more information, see Burt Kaliski's A Layman's Guide to a Subset of ASN.1, BER, and DER, which I was able to find at http://luca.ntop.org/Teaching/Appunti/asn1.html. Not sure if RSA Laboratories still publishes this document. Frank El hallabi-Kettani Abderrahmane <[EMAIL PROTECTED]> Sent by: [EMAIL PROTECTED] 09/29/2004 05:54 AM Please respond to openssl-users To: [EMAIL PROTECTED] cc: Subject: Question about IMPLICIT Tagging . Hi friends, Im dealing with decoding a BER format, and i want to know if we can have an implicit tag in a constructive method, insted of explicit tag, or it can be used just for primitive method, because i don't have the keyword EXPLICIT or IMPLICIT in a tag "[0]{" as an example , wich is tagged as A0 , so it still ambiguous . Another question concerns the constraints of the decoding a part from knowing the ASN1 module . Thinks friends . Abdou, Vous manquez d'espace pour stocker vos mails ? Yahoo! Mail vous offre GRATUITEMENT 100 Mo ! Créez votre Yahoo! Mail sur http://fr.benefits.yahoo.com/ Le nouveau Yahoo! Messenger est arrivé ! Découvrez toutes les nouveautés pour dialoguer instantanément avec vos amis. A télécharger gratuitement sur http://fr.messenger.yahoo.com ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List [EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED] ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List [EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]
