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Move the constructor for key pairs out of the trait.

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This commit is contained in:
Jimmy Cuadra 2019-07-10 03:53:38 -07:00
parent f1d9eba728
commit efbea86fe5
3 changed files with 20 additions and 24 deletions
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4
src/functions.rs
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@ -77,8 +77,6 @@ static REFERENCE_HASH_FIELDS_TO_REMOVE: &[&str] = &["age_ts", "signatures", "uns
/// A homeserver signs JSON with a key pair:
///
/// ```rust
/// use ruma_signatures::KeyPair as _;
///
/// const PUBLIC_KEY: &str = "XGX0JRS2Af3be3knz2fBiRbApjm2Dh61gXDJA8kcJNI";
/// const PRIVATE_KEY: &str = "YJDBA9Xnr2sVqXD9Vj7XVUnmFZcZrlw8Md7kMW+3XA0";
///
@ -297,8 +295,6 @@ pub fn reference_hash(value: &Value) -> Result<String, Error> {
/// # Examples
///
/// ```rust
/// use ruma_signatures::KeyPair as _;
///
/// const PUBLIC_KEY: &str = "XGX0JRS2Af3be3knz2fBiRbApjm2Dh61gXDJA8kcJNI";
/// const PRIVATE_KEY: &str = "YJDBA9Xnr2sVqXD9Vj7XVUnmFZcZrlw8Md7kMW+3XA0";
///

38
src/keys.rs
View File

@ -9,22 +9,6 @@ use crate::{signatures::Signature, Algorithm, Error};
/// A cryptographic key pair for digitally signing data.
pub trait KeyPair: Sized {
/// Initializes a new key pair.
///
/// # Parameters
///
/// * public_key: The public key of the key pair.
/// * private_key: The private key of the key pair.
/// * version: The "version" of the key used for this signature.
/// Versions are used as an identifier to distinguish signatures generated from different keys
/// but using the same algorithm on the same homeserver.
///
/// # Errors
///
/// Returns an error if the public and private keys provided are invalid for the implementing
/// algorithm.
fn new(public_key: &[u8], private_key: &[u8], version: String) -> Result<Self, Error>;
/// Signs a JSON object.
///
/// # Parameters
@ -46,8 +30,22 @@ pub struct Ed25519KeyPair {
version: String,
}
impl KeyPair for Ed25519KeyPair {
fn new(public_key: &[u8], private_key: &[u8], version: String) -> Result<Self, Error> {
impl Ed25519KeyPair {
/// Initializes a new key pair.
///
/// # Parameters
///
/// * public_key: The public key of the key pair.
/// * private_key: The private key of the key pair.
/// * version: The "version" of the key used for this signature.
/// Versions are used as an identifier to distinguish signatures generated from different keys
/// but using the same algorithm on the same homeserver.
///
/// # Errors
///
/// Returns an error if the public and private keys provided are invalid for the implementing
/// algorithm.
pub fn new(public_key: &[u8], private_key: &[u8], version: String) -> Result<Self, Error> {
if let Err(error) = RingEd25519KeyPair::from_seed_and_public_key(
Input::from(private_key),
Input::from(public_key),
@ -61,9 +59,11 @@ impl KeyPair for Ed25519KeyPair {
version,
})
}
}
impl KeyPair for Ed25519KeyPair {
fn sign(&self, message: &[u8]) -> Signature {
// Okay to unwrap because we verified the input in the `new`.
// Okay to unwrap because we verified the input in `new`.
let ring_key_pair = RingEd25519KeyPair::from_seed_and_public_key(
Input::from(&self.private_key),
Input::from(&self.public_key),

2
src/lib.rs
View File

@ -183,7 +183,7 @@ mod test {
use super::{
hash_and_sign_event, sign_json, to_canonical_json, verify_event, verify_json,
Ed25519KeyPair, Ed25519Verifier, KeyPair, Signature,
Ed25519KeyPair, Ed25519Verifier, Signature,
};
const EMPTY_JSON_SIGNATURE: &str =
"K8280/U9SSy9IVtjBuVeLr+HpOB4BQFWbg+UZaADMtTdGYI7Geitb76LTrr5QV/7Xg4ahLwYGYZzuHGZKM5ZAQ";