Documentation

Example

let items = vec![Some('🍔'), Some('🍟'), Some('🌭'), Some('🍦'), Some('🍩')];
let indices = vec![(1, 1), (5, 5), (1, 5), (5, 1), (3, 3)];
SimpleDiagram::from_items(items, &indices); 

The simple diagram looks like this:

Generate mnemonic:

let master = diagram.to_master("🚲🍀🌈".as_bytes())?;
let mnemonic = master.bip85_mnemonic(Language::English, 15, 0)?;

lake album jump occur hedgehog fantasy drama sauce oyster velvet gadget control behave hamster begin

Generate wallet private key

let priv_key = master.bip85_wif(0)?;

L512KXTvjM15Rx47XKCsLxeP6wWaLFXkcvcpzgLwdoxXpZ4LCiSM

Generate xpriv

let xpriv = master.bip85_xpriv(0)?;

xprv9s21ZrQH143K2BaWTmmsZ8xcAPbpWWLweSGnyFVQJe5G7kqPFc64SrnhARRYy2d9qGuxHhimKk5BBaPdG2tG4Wcenxb5ikYTXwtZehggiru

Generate password

let pwd = master.bip85_pwd(Password::Emoji, 20, 0)?;

🐬🐍🏠😍🌻⚡🐍✋🚗🌴🍟🎈🏠💧🌈🍌🔑🌙🐸🌴

Entropy evaluation

mnemonic 12 words entropy = (2048)¹² = (2¹¹)¹² = 2¹³²
mnemonic 24 words entropy = (2048)²⁴ = (2¹¹)²⁴ = 2²⁶⁴
(In fact, because the tail of 4bits/8bits is a checksum, the real entropy is 2¹²⁸/2²⁵⁶.)

Only emoji

emoji characters amount 1,431 ≈ 2¹⁰
9 cells permutation in 7 * 7 grid = (A₄₉⁹) = 49! / 40! ≈ 2⁴⁹
9 emoji characters in simple diagram = (2¹⁰)⁹ * 2⁴⁹ = 2¹³⁹ > 2¹³²
18 cells permutation in 7 * 7 grid = (A₄₉¹⁸) = 49! / 31! ≈ 2⁹⁵
18 emoji characters in simple diagram = (2¹⁰)¹⁸ * 2⁹⁵ = 2²⁷⁵ > 2²⁶⁴

So, 9 emoji characters provide the equivalent encryption strength of 12 mnemonics.
and 18 emoji characters provide the equivalent encryption strength of 24 mnemonics.

All Unicode

unicode characters amount 155,063 ≈ 2¹⁷
6 cells permutation in 7 * 7 grid = (A₄₉⁶) = 49! / 43! ≈ 2³³
6 unicode characters in simple diagram = (2¹⁷)⁶ * 2³³ = 2¹³⁵ > 2¹³²
12 cells permutation in 7 * 7 grid = (A₄₉¹²) = 49! / 37! ≈ 2⁶⁵
12 unicode characters in simple diagram = (2¹⁷)¹² * 2⁶⁵ = 2²⁶⁹ > 2²⁶⁴

So, 6 unicode characters provide the equivalent encryption strength of 12 mnemonics.
and 12 unicode characters provide the equivalent encryption strength of 24 mnemonics.

ComplexDiagram can be filled with 50 unicode characters in a cell, providing better encryption strength.