From d77243b8fd4cff90181615806a9d03cff994f8d9 Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@matterlabs.dev>
Date: Thu, 13 Jun 2024 13:59:55 +0200
Subject: [PATCH] fix(tee-key-preexec): export the key in PEM

makes it easier to import

Signed-off-by: Harald Hoyer <harald@matterlabs.dev>
---
 bin/tee-key-preexec/src/main.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/bin/tee-key-preexec/src/main.rs b/bin/tee-key-preexec/src/main.rs
index 769ffd2..13a0697 100644
--- a/bin/tee-key-preexec/src/main.rs
+++ b/bin/tee-key-preexec/src/main.rs
@@ -7,8 +7,9 @@
 #![deny(clippy::all)]
 
 use anyhow::{Context, Result};
-use hex::ToHex;
 use k256::ecdsa::SigningKey;
+use k256::pkcs8::{EncodePrivateKey, LineEnding};
+
 use std::env;
 use std::os::unix::process::CommandExt;
 use std::process::Command;
@@ -39,7 +40,7 @@ fn main_with_error() -> Result<()> {
     let mut rng = rand::thread_rng();
     let signing_key = SigningKey::random(&mut rng);
     let verifying_key_bytes = signing_key.verifying_key().to_sec1_bytes();
-    let signing_key_string = signing_key.to_bytes().encode_hex::<String>();
+    let signing_key_string = signing_key.to_pkcs8_pem(LineEnding::LF)?;
     let tee_type = match get_quote(&verifying_key_bytes) {
         Ok(quote) => {
             // save quote to file