Meta Secret Mobile Application

Web site

Shamir Secret Sharing web app

Application Design

Activity Diagram

graph TD
    User --> |split password| MSS{MetaSecret}
    MSS --> |split| Hash1
    MSS --> |split| Hash2
    MSS --> |split| Hash3
    
    User --> |recover password| MSR{MetaSecret}
    MSR --> |read| HH1[Hash1]
    MSR --> |read| HH2[Hash2]
    HH1 --> RecoverAlgo[Meta Secret: Recovery Algorithm]
    HH2 --> RecoverAlgo
    RecoverAlgo --> RP[Recovered Password]

Sequence Diagram

sequenceDiagram
    note over User: Split to 3 shares
    User->>+MetaSecret: Split password
    
    MetaSecret->>User: show qr1 (of hash1)
    MetaSecret->>User: show qr2 (of hash2)
    MetaSecret->>-User: show qr3 (of hash3)
    User ->> World: save qr codes in different places

    note over User: Recover from 2 shares
    User ->> World: get qr1
    User ->> World: get qr3

    User ->> MetaSecret: recover password
    User -->> MetaSecret: provide qr1
    User -->> MetaSecret: provide qr3
    MetaSecret ->> MetaSecret: recover password
    MetaSecret ->> User: show password

Web Application

Meta Secret Web Cli is available on https://meta-secret.github.io

Command Line App

Split secrets:

You can split and restore your secrets by using meta-secret cli app in docker.
Imagine that we want to split top$ecret, then the command will be:

$ mkdir secrets
$ docker run -ti --rm -v "$(pwd)/secrets:/app/secrets" ghcr.io/meta-secret/cli:latest split --secret top$ecret 

It will generate json/qr(jpg) files (shares of your secert) in the secrets directory.

Restore secrets:

When it comes to restore the secret, put json or qr files (shares of your secret) into the secrets directory. Then run in case of qr (if you want restore from json, just pass --from json ):

$ docker run -ti --rm -v "$(pwd)/secrets:/app/secrets" ghcr.io/meta-secret/cli:latest restore --from qr 

Advice for VPS-users

If you don't want to use FileZilla to download QR-codes to see on your computer, you can see them in terminal.

Installation

$ brew install qrencode (MacOS)
$ apt-get install qrencode (Debian/Ubuntu)
$ dnf install qrencode (CentOS/Rocky/Alma)

Showing QR codes in terminal

$ qrencode -t ansiutf8 < meta-secret-1.json

Congrats! Save these codes in secure place!

Below is optional If you would like to extract data from QR's

• Just take a phone to scan QR
• or screenshot the terminal and upload it on this website: webqr.com