From 89b3875bfc72ffb5ca6757bc322af47c79b4c4ea Mon Sep 17 00:00:00 2001
From: bunnie <bunnie@kosagi.com>
Date: Mon, 28 Jun 2021 02:33:32 +0800
Subject: [PATCH] commit before working on acceleration code

---
 Cargo.lock                            |  1 +
 services/shellchat/Cargo.toml         |  2 +-
 services/shellchat/src/cmds/engine.rs | 29 +++++++++++++++++++++++++++
 3 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/Cargo.lock b/Cargo.lock
index 2a9dde91a..23976a1c6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -549,6 +549,7 @@ checksum = "c762bae6dcaf24c4c84667b8579785430908723d5c889f469d76a41d59cc7a9d"
 dependencies = [
  "curve25519-dalek",
  "ed25519",
+ "rand 0.7.3",
  "sha2",
  "zeroize",
 ]
diff --git a/services/shellchat/Cargo.toml b/services/shellchat/Cargo.toml
index c25e77eab..7b442c5e0 100644
--- a/services/shellchat/Cargo.toml
+++ b/services/shellchat/Cargo.toml
@@ -56,7 +56,7 @@ features = ["u32_backend"]
 version = "1.0.1"
 #path = "../../../ed25519-dalek"
 default-features = false
-features = ["u32_backend"]
+features = ["u32_backend", "rand"]
 
 [target.'cfg(not(any(windows,unix)))'.dependencies]
 utralib = {path = "../../utralib"}
diff --git a/services/shellchat/src/cmds/engine.rs b/services/shellchat/src/cmds/engine.rs
index 747c71551..c3692f460 100644
--- a/services/shellchat/src/cmds/engine.rs
+++ b/services/shellchat/src/cmds/engine.rs
@@ -291,6 +291,35 @@ impl<'a> ShellCmdApi<'a> for Engine {
                         write!(ret, "x25519 key exchange fail").unwrap();
                     }
                 }
+                "ed2" => {
+                    use ed25519_dalek::{Keypair, Signature, Signer};
+                    let keypair: Keypair;
+                    let good_sig: Signature;
+                    let bad_sig:  Signature;
+
+                    let good: &[u8] = "test message".as_bytes();
+                    let bad:  &[u8] = "wrong message".as_bytes();
+
+                    keypair  = Keypair::generate(&mut env.trng);
+                    good_sig = keypair.sign(&good);
+                    bad_sig  = keypair.sign(&bad);
+
+                    if keypair.verify(&good, &good_sig).is_ok() {
+                        write!(ret, "Verification of valid signtaure passed!\n").unwrap();
+                    } else {
+                        write!(ret, "Verification of valid signtaure failed!\n").unwrap();
+                    }
+                    if keypair.verify(&good, &bad_sig).is_err() {
+                        write!(ret, "Verification of a signature on a different message failed, as expected.\n").unwrap();
+                    } else {
+                        write!(ret, "Verification of a signature on a different message passed (this is unexpected)!\n").unwrap();
+                    }
+                    if keypair.verify(&bad,  &good_sig).is_err() {
+                        write!(ret, "Verification of a signature on a different message failed, as expected.\n").unwrap();
+                    } else {
+                        write!(ret, "Verification of a signature on a different message passed (this is unexpected)!\n").unwrap();
+                    }
+                }
                 "ed" => {
                     use ed25519_dalek::*;
                     use ed25519::signature::Signature as _;