golang/go

x/crypto/salsa20: implement cipher.Stream interface

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#25,308 opened on May 9, 2018

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Description

salsa20 is the odd one out that implements only a stateless XORKeyStream at the package level.

Contributor guide

Research direction
Study the cipher.Stream interface in Go's crypto/cipher package, then implement the required methods (XORKeyStream) for a new struct in the salsa20 package that holds the key and nonce. Ensure the existing package level XORKeyStream function remains unchanged.
Tech stack
go
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Go
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75