feat: add publish, and rpc

__enclave/virt_enclave/src/util.rs

@@ -0,0 +1,23 @@
+use std::fs::File;
+use std::io::Read;
+use crate::sig::SigningKeyPair;
+use rust_util::XResult;
+
+lazy_static::lazy_static! {
+    static ref SIGNING_KEY_PAIR: Option<SigningKeyPair> = load_signing_key_pair();
+}
+
+pub fn get_signing_public_key() -> Option<String> {
+    SIGNING_KEY_PAIR.as_ref().map(|key_pair| hex::encode(&key_pair.public_key()))
+}
+
+pub fn load_signing_key_pair() -> Option<SigningKeyPair> {
+    SigningKeyPair::read_from_file("platform_signing_key.json").ok()
+}
+
+pub fn read_file(f: &str) -> XResult<String> {
+    let mut file = File::open(&f).map_err(|e| rust_util::new_box_error(&format!("Open file: {}, failed: {}", f , e)))?;
+    let mut buf = String::new();
+    file.read_to_string(&mut buf).map_err(|e| rust_util::new_box_error(&format!("Read file: {}, failed: {}", f , e)))?;
+    Ok(buf)
+}