[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: XML is Mobile Code? [was: Defining an XML vocabulary: spe
Yes. XML is analogous to a piano roll if a piano roll could be put into any device and the device could recognize it as a piano roll even it isn't a piano. But to play, a player piano is required. Implications to security: please elaborate on why security at this level is not worth discussing. The delineation of behavior and data enables the recognition of the data syntax but not its interpretation so it can have multiple interpretations. But there is a observable limit on the size of the set of useful interpretations. How that limit is related to the values of the selectors acting over the set within the sets to which it is related determines the interpretation set. len From: Elliotte Harold [mailto:elharo@m...] Costello, Roger L. wrote: > Hi Folks, > > It just occurred to me ... > > We have determined that XML has two primary roles: > > 1. Encode behavior (instructions) > > 2. Encode data > > I am surely missing something. Please tell me where my thinking errs. > Your error is in clearly delineating behavior and data. There's not really such an obvious distinction. Encoded instructions are data. Whether any given XML stream (or byte stream) is interpreted as instructions depends on the process reading them. It is not fundamental in the data itself. XML encodes information. There is no limit on the information it encodes. *Anything* that can be digitized can be encoded in XML. At a base level, the security implications of XML are the same as the security implications of arbitrary binary data. It is not clear that discussing security at this level is useful.
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