DerToXmlDoc (String function)

Convert DER encoded data to XML (String class)

[Introduced in Sirius Mods 8.0]

DER (Distinguished Encoding Rules) provide a way to uniquely encode an ASN.1 type value as a string of eight-bit octets. DerToXmlDoc converts such a string to an XmlDoc.

Syntax

%doc = string:DerToXmlDoc Throws InvalidBerData

Syntax terms

%doc	An XmlDoc object variable to contain the decoded value of the method object, string.
string	A DER encoded string.

Usage notes

• Currently, no method is available to produce a DER stream from an XmlDoc.

Examples

The PemToString example loads a Longstring with the contents of the base64 encoded CRL (Certificate Revocation List). If that Longstring is %ls below, the following statement converts that string to the XmlDoc whose contents are printed thereafter:

%ls:derToXmlDoc:print

The result is shown in part below:

<Sequence> <Sequence> <Sequence> <ObjectIdentifier>1.2.840.113549.1.1.4</ObjectIdentifier> <Null/> </Sequence> <Sequence> ... <Set> <Sequence> <ObjectIdentifier>2.5.4.8</ObjectIdentifier> <PrintableString>QLD</PrintableString> </Sequence> </Set> ... <UTCTime>20010115162657.000Z</UTCTime> <UTCTime>20010214162657.000Z</UTCTime> <Sequence> <Sequence> <Integer>1</Integer> <UTCTime>19951009233205.000Z</UTCTime> </Sequence> <Sequence> <Integer>3</Integer> <UTCTime>19951201010000.000Z</UTCTime> </Sequence> ...

The ellipses indicate snipped content and are not part of the XmlDoc.

See also

Float class String class Unicode class	List of Float methods List of String methods List of Unicode methods List of Intrinsic methods	Float methods syntax String methods syntax Unicode methods syntax
Notation conventions for methods