feat: debug with data hex

rust-bindings/bls-signatures/Cargo.toml

@@ -16,3 +16,4 @@ apple = ["bls-dash-sys/apple"]
 bls-dash-sys = { path = "../bls-dash-sys" }
 serde = { version= "1.0.160", features = ["derive"], optional = true}
 rand = { version= "0.8.5", optional = true}
+hex = { version = "0.4.3"}

rust-bindings/bls-signatures/src/elements.rs

@@ -1,4 +1,6 @@
 use std::ffi::c_void;
+use std::fmt::Debug;
+use std::fmt::Formatter;
 
 use bls_dash_sys::{CoreMPLDeriveChildPkUnhardened, G1ElementFree, G1ElementFromBytes, G1ElementGenerator, G1ElementGetFingerprint, G1ElementIsEqual, G1ElementSerialize, G1ElementCopy, G2ElementCopy, G2ElementFree, G2ElementFromBytes, G2ElementIsEqual, G2ElementSerialize, ThresholdPublicKeyRecover, ThresholdSignatureRecover};
 #[cfg(feature = "use_serde")]
@@ -17,7 +19,6 @@ pub type PublicKey = G1Element;
 #[cfg(feature = "dash_helpers")]
 pub type Signature = G2Element;
 
-#[derive(Debug)]
 pub struct G1Element {
     pub(crate) c_element: *mut c_void,
 }
@@ -28,6 +29,14 @@ impl PartialEq for G1Element {
     }
 }
 
+impl Debug for G1Element {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        let g1_hex = hex::encode(self.to_bytes().as_slice());
+
+        write!(f, "G1Element({:?})", g1_hex)
+    }
+}
+
 impl Eq for G1Element {}
 
 impl G1Element {
@@ -181,7 +190,6 @@ impl Drop for G1Element {
     }
 }
 
-#[derive(Debug)]
 pub struct G2Element {
     pub(crate) c_element: *mut c_void,
 }
@@ -192,6 +200,14 @@ impl PartialEq for G2Element {
     }
 }
 
+impl Debug for G2Element {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        let g2_hex = hex::encode(self.to_bytes().as_slice());
+
+        write!(f, "G2Element({:?})", g2_hex)
+    }
+}
+
 impl Eq for G2Element {}
 
 impl G2Element {

rust-bindings/bls-signatures/src/private_key.rs

@@ -1,4 +1,5 @@
 use std::{ffi::c_void, ops::Mul};
+use std::fmt::{Debug, Formatter};
 
 use bls_dash_sys::{
     CoreMPLDeriveChildSk, CoreMPLDeriveChildSkUnhardened, CoreMPLKeyGen, G1ElementMul,
@@ -13,7 +14,6 @@ use crate::{schemes::Scheme, utils::{c_err_to_result, SecureBox}, BasicSchemeMPL
 
 pub const PRIVATE_KEY_SIZE: usize = 32; // TODO somehow extract it from bls library
 
-#[derive(Debug)]
 pub struct PrivateKey {
     pub(crate) c_private_key: *mut c_void,
 }
@@ -26,6 +26,13 @@ impl PartialEq for PrivateKey {
 
 impl Eq for PrivateKey {}
 
+impl Debug for PrivateKey {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        let private_key_hex = hex::encode(self.to_bytes().as_slice());
+
+        write!(f, "PrivateKey({:?})", private_key_hex)
+    }
+}
 impl Mul<G1Element> for PrivateKey {
     type Output = Result<G1Element, BlsError>;