cw-argon2

Helpers to use argon2 hashing in CosmWasm contracts

Features

• Calculate hash bytes from password and salt
• Convert bech32 addresses to a salt
• Convert hex string to hash bytes
• Convert hash bytes to normalized decimal

Usage

use cosmwasm_std::{Addr, Decimal, Env, StdResult};
use cw_argon2::{address_to_salt, calc_hash_bytes, Hash};

pub fn get_random_weight(
    env: &Env,
    sender_address: &Addr,
    previous_weight: &Decimal,
) -> StdResult<Decimal> {
    let password = &format!("{}{}", previous_weight, env.block.time.nanos());
    let salt = &address_to_salt(sender_address);
    let hash_bytes = calc_hash_bytes(password, salt)?;

    Ok(Hash::from(hash_bytes).to_norm_dec())
}

Licenses

This repo is licensed under Apache 2.0.