Merge pull request #50 from fpco/feature/generate-signing-keys

Generate signing keys from cosmos-rs

packages/cosmos-bin/Cargo.toml

@@ -28,6 +28,7 @@ cw4-group = "2.0.0"
 cw-utils = "2.0.0"
 cosmwasm-std = "2.1.4"
 csv = "1.3.0"
+hex = "0.4"
 
 [dev-dependencies]
 quickcheck = "1"

packages/cosmos-bin/src/main.rs

@@ -79,7 +79,11 @@ impl Subcommand {
 fn gen_wallet(hrp: AddressHrp) -> Result<()> {
     let phrase = cosmos::SeedPhrase::random();
     let wallet = phrase.with_hrp(hrp)?;
+    let private_key = wallet.get_privkey().private_key.display_secret();
+    let public_key = hex::encode(wallet.public_key_bytes());
     println!("Mnemonic: {}", phrase.phrase());
     println!("Address: {wallet}");
+    println!("Private Key: {}", private_key);
+    println!("Public Key : {}", public_key);
     Ok(())
 }

packages/cosmos/src/wallet.rs

@@ -396,6 +396,14 @@ impl Wallet {
         )
         .await
     }
+
+    /// Retrieves the private key associated with the wallet.
+    ///
+    /// This function returns the private key (`Xpriv`) of the wallet.
+    /// The private key is crucial for signing transactions and should be kept secure.
+    pub fn get_privkey(&self) -> Xpriv {
+        self.privkey
+    }
 }
 
 fn cosmos_address_from_public_key(public_key: &[u8]) -> [u8; 20] {
@@ -545,4 +553,14 @@ mod tests {
             hex::encode(hash)
         );
     }
+
+    #[test]
+    fn test_gen_key_pair() {
+        let address_hrp = AddressHrp::from_static("cosmos");
+        let wallet = Wallet::generate(address_hrp).unwrap();
+        let private_key = wallet.get_privkey().private_key.display_secret();
+        let public_key = hex::encode(wallet.public_key_bytes());
+        assert_eq!(private_key.to_string().len(), 64);
+        assert_eq!(public_key.to_string().len(), 66);
+    }
 }