2021 edition bump + doc improvements; MSRV 1.56 (#80)

- Bumps both `spake2` and `srp` to Rust 2021 edition
- Uses the new `doc = include_str!(...)` attribute to include README.md
  files in the rustdoc
- Improves the README.md files, adding an initial one for `srp`
- clippy fixes for Rust 1.56

1 files changed, 0 insertions, 63 deletions

diff --git a/srp/tests/mod.rs b/srp/tests/mod.rs
deleted file mode 100644
index 58bfa0f..0000000
--- a/srp/tests/mod.rs
+++ /dev/null
@@ -1,63 +0,0 @@
-use rand;
-use rand::RngCore;
-use sha2::Sha256;
-
-use srp::client::{srp_private_key, SrpClient};
-use srp::groups::G_2048;
-use srp::server::{SrpServer, UserRecord};
-
-fn auth_test(reg_pwd: &[u8], auth_pwd: &[u8]) {
-    let mut rng = rand::rngs::OsRng::new().unwrap();
-    let username = b"alice";
-
-    // Client instance creation
-    let mut a = [0u8; 64];
-    rng.fill_bytes(&mut a);
-    let client = SrpClient::<Sha256>::new(&a, &G_2048);
-
-    // Registration
-    let mut salt = [0u8; 16];
-    rng.fill_bytes(&mut salt);
-    let reg_priv_key = srp_private_key::<Sha256>(username, reg_pwd, &salt);
-    let verif = client.get_password_verifier(&reg_priv_key);
-
-    // User sends handshake
-    let a_pub = client.get_a_pub();
-
-    // Server retrieve user record from db and processes handshake
-    let user = UserRecord {
-        username,
-        salt: &salt,
-        verifier: &verif,
-    };
-    let mut b = [0u8; 64];
-    rng.fill_bytes(&mut b);
-    let server = SrpServer::<Sha256>::new(&user, &a_pub, &b, &G_2048).unwrap();
-    let (salt, b_pub) = (&user.salt, server.get_b_pub());
-
-    // Client processes handshake reply
-    let auth_priv_key = srp_private_key::<Sha256>(username, auth_pwd, salt);
-    let client2 = client.process_reply(&auth_priv_key, &b_pub).unwrap();
-    let proof = client2.get_proof();
-
-    // Server processes verification data
-    println!("Client verification");
-    let proof2 = server.verify(&proof).unwrap();
-    let server_key = server.get_key();
-
-    // Client verifies server
-    println!("Server verification");
-    let user_key = client2.verify_server(&proof2).unwrap();
-    assert_eq!(server_key, user_key, "server and client keys are not equal");
-}
-
-#[test]
-fn good_password() {
-    auth_test(b"password", b"password");
-}
-
-#[test]
-#[should_panic]
-fn bad_password() {
-    auth_test(b"password", b"paSsword");
-}