[Question] The metadata key using a "null" salt

[kidburglar]

Hello,

I was reading the code because I wanted to know how the encryption was working but I remark that the metadata key have only a null salt. The file key use a salt for the key.

https://github.com/mozilla/send/blob/master/app/keychain.js#L21

send/app/ece.js

Line 290 in ca77425

export function encryptStream(

send/app/ece.js

Line 13 in ca77425

function generateSalt(len) {

I was curious to know if there is a reason behind that?

Thanks for your answer.

Cheers.