pub use sp_core::bandersnatch;
use crate::ParseKeyringError;
#[cfg(feature = "std")]
use sp_core::bandersnatch::Signature;
use sp_core::{
bandersnatch::{Pair, Public},
crypto::UncheckedFrom,
hex2array, ByteArray, Pair as PairT,
};
extern crate alloc;
use alloc::{format, str::FromStr, string::String, vec::Vec};
#[derive(
Debug, Clone, Copy, PartialEq, Eq, Hash, strum::Display, strum::EnumIter, Ord, PartialOrd,
)]
pub enum Keyring {
Alice,
Bob,
Charlie,
Dave,
Eve,
Ferdie,
One,
Two,
}
const PUBLIC_RAW_LEN: usize = <Public as ByteArray>::LEN;
impl Keyring {
pub fn from_public(who: &Public) -> Option<Keyring> {
Self::iter().find(|&k| &Public::from(k) == who)
}
pub fn from_raw_public(who: [u8; PUBLIC_RAW_LEN]) -> Option<Keyring> {
Self::from_public(&Public::unchecked_from(who))
}
pub fn to_raw_public(self) -> [u8; PUBLIC_RAW_LEN] {
*Public::from(self).as_ref()
}
pub fn to_raw_public_vec(self) -> Vec<u8> {
Public::from(self).to_raw_vec()
}
#[cfg(feature = "std")]
pub fn sign(self, msg: &[u8]) -> Signature {
Pair::from(self).sign(msg)
}
pub fn pair(self) -> Pair {
Pair::from_string(&format!("//{}", <&'static str>::from(self)), None)
.expect("static values are known good; qed")
}
pub fn iter() -> impl Iterator<Item = Keyring> {
<Self as strum::IntoEnumIterator>::iter()
}
pub fn public(self) -> Public {
Public::from(self)
}
pub fn to_seed(self) -> String {
format!("//{}", self)
}
pub fn numeric(idx: usize) -> Pair {
Pair::from_string(&format!("//{}", idx), None).expect("numeric values are known good; qed")
}
}
impl From<Keyring> for &'static str {
fn from(k: Keyring) -> Self {
match k {
Keyring::Alice => "Alice",
Keyring::Bob => "Bob",
Keyring::Charlie => "Charlie",
Keyring::Dave => "Dave",
Keyring::Eve => "Eve",
Keyring::Ferdie => "Ferdie",
Keyring::One => "One",
Keyring::Two => "Two",
}
}
}
impl FromStr for Keyring {
type Err = ParseKeyringError;
fn from_str(s: &str) -> Result<Self, <Self as FromStr>::Err> {
match s {
"Alice" => Ok(Keyring::Alice),
"Bob" => Ok(Keyring::Bob),
"Charlie" => Ok(Keyring::Charlie),
"Dave" => Ok(Keyring::Dave),
"Eve" => Ok(Keyring::Eve),
"Ferdie" => Ok(Keyring::Ferdie),
"One" => Ok(Keyring::One),
"Two" => Ok(Keyring::Two),
_ => Err(ParseKeyringError),
}
}
}
impl From<Keyring> for Public {
fn from(k: Keyring) -> Self {
Public::unchecked_from(<[u8; PUBLIC_RAW_LEN]>::from(k))
}
}
impl From<Keyring> for Pair {
fn from(k: Keyring) -> Self {
k.pair()
}
}
impl From<Keyring> for [u8; PUBLIC_RAW_LEN] {
fn from(k: Keyring) -> Self {
match k {
Keyring::Alice =>
hex2array!("9c8af77d3a4e3f6f076853922985b9e6724fc9675329087f47aff1ceaaae772180"),
Keyring::Bob =>
hex2array!("1abfbb76dc8374a1a6d93d59a5c81f07c18835f4681a6258aa0f514d363bff4780"),
Keyring::Charlie =>
hex2array!("0f4a9990aca3d39a7cd8bf187e2e81a9ea6f9cedb2db405f2fffff384c5dd02680"),
Keyring::Dave =>
hex2array!("bd7a87d4dfa89926a408b5acbed554ae3b053fa3532531053295cbabf07d337000"),
Keyring::Eve =>
hex2array!("f992d5b8eac8fc004d521bee6edc1174cfa7fae3a1baec8262511ee351f9f85e00"),
Keyring::Ferdie =>
hex2array!("1ce2613e89bc5c8e358aad884099cfb576a61176f2f9968cd0d486a04457245180"),
Keyring::One =>
hex2array!("a29e03ac273e521274d8e501a6242abd2ab393d7e197221a9113bdf8e2e5b34d00"),
Keyring::Two =>
hex2array!("f968d47e819ddb18a9d0f2ebd16501680b1a3f07ee375c6f81310e5f99a04f4d00"),
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use sp_core::{bandersnatch::Pair, Pair as PairT};
#[test]
fn should_work() {
assert!(Pair::verify(
&Keyring::Alice.sign(b"I am Alice!"),
b"I am Alice!",
&Keyring::Alice.public(),
));
assert!(!Pair::verify(
&Keyring::Alice.sign(b"I am Alice!"),
b"I am Bob!",
&Keyring::Alice.public(),
));
assert!(!Pair::verify(
&Keyring::Alice.sign(b"I am Alice!"),
b"I am Alice!",
&Keyring::Bob.public(),
));
}
#[test]
fn verify_static_public_keys() {
assert!(Keyring::iter()
.all(|k| { k.pair().public().as_ref() == <[u8; PUBLIC_RAW_LEN]>::from(k) }));
}
}