Proper signature management

src/signature.rs

@@ -1,6 +1,6 @@
 use std::path::PathBuf;
 
-use ed25519_dalek::SigningKey;
+use ed25519_dalek::{Signature, SigningKey, VerifyingKey};
 use rand::rngs::OsRng;
 
 pub async fn get() -> anyhow::Result<SigningKey> {
@@ -19,3 +19,25 @@ pub async fn get() -> anyhow::Result<SigningKey> {
         ))
     }
 }
+
+pub fn to_string(key: &VerifyingKey) -> String {
+    bs58::encode(key.to_bytes()).into_string()
+}
+
+pub fn from_string(key: &str) -> anyhow::Result<VerifyingKey> {
+    Ok(VerifyingKey::from_bytes(
+        &bs58::decode(key)
+            .into_vec()?
+            .try_into()
+            .map_err(|_| anyhow::anyhow!("Invalid public key"))?,
+    )?)
+}
+
+pub fn from_string_sig(signature: &str) -> anyhow::Result<Signature> {
+    Ok(Signature::from_bytes(
+        &bs58::decode(signature)
+            .into_vec()?
+            .try_into()
+            .map_err(|_| anyhow::anyhow!("Invalid public key"))?,
+    ))
+}