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6.5. HTTP Signature Component Parameters Registry

6.5. HTTP Signature Component Parameters Registry​

This document defines several kinds of component identifiers, some of which can be parameterized in specific circumstances to provide unique modified behavior. IANA has created and now maintains a new registry titled "HTTP Signature Component Parameters" to record and maintain the set of parameter names, the component identifiers they are associated with, and the modifications these parameters make to the component value. Definitions of parameters MUST define the targets to which they apply (such as specific field types, derived components, or contexts). Initial values for this registry are given in Section 6.5.2. Future assignments and modifications to existing assignments are to be made through the Expert Review registration policy [RFC8126].

The DE is expected to do the following:

  • Ensure that the name follows the template presented in Section 6.5.1; this includes ensuring that the length of the name is not excessive while still being unique and recognizable for its defined function.

  • Ensure that the definition of the field sufficiently defines any interactions or incompatibilities with other existing parameters known at the time of the registration request.

  • Ensure that the component value defined by the component identifier with the parameter applied can be deterministically derived from the target HTTP message in cases where the parameter changes the component value.

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