Chacha / Salsa / Chacha20 / Salsa20 case

Rationale

We have in the List chacha(salsa)

Chacha is an evolution of Salsa. Both should be included on the list. The number behind these algorithms correspond to rounds, that is, the number of repetitions of the encryption process, which mixes the content.

What do we do with Salsa20 or Chacha8, for instance? Can the rounds be considered as a parameter?

This case needs to be evaluated, discussed and agreed.

Description

We have in the list

• chacha(salsa)
• salsa20

We need to:

• Include the algorithms chacha and salsa
• Define how do we express the rounds, like chacha8, chacha12 or salsa20, for instance. Could this be ?

Remember that the conversation about how to define the parameters is pending #25 #39

Is there any other algorithm affected by this so we should included in this conversation?

Actions

• Change the algorithm name from chacha(salsa) to chacha
• Confirm if there are additional algorithms affected by this definition of "rounds"
• Agree on a way to define rounds among the different options, for chacha and salsa

DoD

• PR that changes the algorithm name from chacha(salsa) to chacha #46
  • PR merged

Start by reviewing the current algorithm list, the pending parameter discussions in issues #25 and #39, and PR #46. The work is done when the affected algorithms and a rounds-expression convention are agreed, the list is updated accordingly, and the referenced PR is merged.