SilcBool silc_asn1_init(SilcAsn1 asn1);

    Initializes a pre-allocated SilcAsn1 context.  This call is
    equivalent to silc_asn1_alloc except that this takes the pre-allocated
    context as argument.

    SilcAsn1Struct asn1;
    if (!silc_asn1_init(&asn1))
      error;