xml-c14n

xml c14n mode xml-file [xpath-file] [inclusive-ns-list]

xml c14n is the canonicalization sub-command of xmlstarlet. It produces a byte-stable serialization of an XML document according to the W3C Canonical XML 1.0 or Exclusive XML Canonicalization 1.0 specifications. The result is what tools must compute before generating or verifying XML Digital Signatures (XML-DSig) so that semantically equivalent documents hash to the same value.Inclusive canonicalization includes ancestor namespace declarations; exclusive canonicalization (used by SAML, WS-Security, etc.) drops them unless explicitly listed in the inclusive namespace prefix list.

MODE (required, exactly one)

One of --with-comments, --without-comments, --exc-with-comments, --exc-without-comments.

XML document to canonicalize. Use - to read stdin.

Optional XML file whose root element's text content is an XPath expression that selects the node-set to canonicalize.

For exclusive C14N only: space-separated list of namespace prefixes to treat as inclusive (e.g. `'soap xsd'`).

The mode flag is positional — every invocation must supply exactly one of the four mode options before the input file. The XPath argument is itself an XML file containing an XPath, not a literal expression on the command line.

xmlstarlet(1), xml-canonic(1), xml-format(1), xmllint(1)