Complement the properties addind which ones are mandatory/optional

[toscalix]

Background

• During the presentation of the SPX CryptAlg to the tech group, a suggestion came to define which properties are mandatory and which ones optional.
• Which properties allow more than one value and which ones do not is also relevant. Currently, this information is not explicit in all cases

Rationale

Defining which properties that characterise an element are mandatory or optional is an obvious requirement fir standarization so the list will follow it. A discussion should precede the decision about this topic.

Something similar applies to which properties admit more than one value or one value only. Right now, it is not clear in all cases.

Description

The Cryptography Group will discuss and decide on which propertoes are mandatory and optional. It will also decide on which ones admit one value or several, making this explicit.

Actions

• Disccussion about which properties are mandatory and which ones are optional.
• Decision about this topic
• Discussion about which properties admit one value only or more than one, and why
• Decision about this topic
• Create a PR which the result of the discussion
• PR Merged

DoD

• Link to the record of the decision on the mandatory/optional values
• Link to the agreed proposal
• Link to the decision on which properties admit one value vs several
• Link to the agree proposal
• PR
• PR merged