jimsch
commented
9 years ago It is not clear that this makes sense. In many cases the IV is described as a nonce value not an IV. An example of this is GCM. It depends on what one things a nonce is as oppose to an IV. How would you characterize a nonce that is not trans-actional, and thus by your criteria it should be place in the content not the wrapper
The description of the “nonce” header parameter in Section 3.1 says that “This parameter holds either a nonce or Initialization Vector value.” Is there a well-understood reason why both a nonce and an initialization vector will never both be needed in the same set of header parameters. Unless such a reason can be documented, please create separate header parameters for “nonce” and “IV”.