NillionNetwork/nada-by-example

Oblivious Update

Open

#20 opened on Aug 14, 2024

View on GitHubContributor guide
 (2 comments) (0 reactions) (0 assignees)Python (10 forks)auto 404
enhancementhacktoberfesthelp wanted

Repository metrics

Stars
 (11 stars)
PR merge metrics
 (PR metrics pending)

Description

Request a New Nada Example

Obliviously update an element of a list if it exists.

Description

Similarly to our linear scan example that checks whether a specific value old_value is present in a list, we now want to update the value to a new_value (if it exists).

For example in a list of SecretIntegers [1, 2, 3, 4, 5], old_value = 2, and old_value = 6, the list will become [1, 6, 3, 4, 5].

Contributor guide

Research direction
Study the existing linear scan example in the repository and adapt it to perform an oblivious update: iterate over the list, compare each element to old value, and if equal, replace with new value, ensuring all operations are data oblivious (e.g., using conditional selection or multiplication).
Tech stack
python
Domain
backendcryptography
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Under 1 hour
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
PythonNada
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
90