[CHIA-780] member functions for deriving hardened and unhardened keys

crates/chia-bls/src/public_key.rs

@@ -311,25 +311,30 @@ mod pybindings {
         const SIZE: usize = 48;
 
         #[new]
-        pub fn init() -> Self {
+        fn init() -> Self {
             Self::default()
         }
 
         #[staticmethod]
         #[pyo3(name = "generator")]
-        pub fn py_generator() -> Self {
+        fn py_generator() -> Self {
             Self::generator()
         }
 
-        pub fn pair(&self, other: &Signature) -> GTElement {
+        fn pair(&self, other: &Signature) -> GTElement {
             other.pair(self)
         }
 
         #[pyo3(name = "get_fingerprint")]
-        pub fn py_get_fingerprint(&self) -> u32 {
+        fn py_get_fingerprint(&self) -> u32 {
             self.get_fingerprint()
         }
 
+        #[pyo3(name = "derive_unhardened")]
+        fn py_derive_unhardened(&self, idx: u32) -> Self {
+            self.derive_unhardened(idx)
+        }
+
         fn __str__(&self) -> String {
             hex::encode(self.to_bytes())
         }

crates/chia-bls/src/secret_key.rs

@@ -250,17 +250,32 @@ mod pybindings {
         #[classattr]
         const PRIVATE_KEY_SIZE: usize = 32;
 
-        pub fn sign_g2(&self, msg: &[u8]) -> Signature {
+        fn sign_g2(&self, msg: &[u8]) -> Signature {
             crate::sign(self, msg)
         }
 
-        pub fn get_g1(&self) -> PublicKey {
+        fn get_g1(&self) -> PublicKey {
+            self.public_key()
+        }
+
+        #[pyo3(name = "public_key")]
+        fn py_public_key(&self) -> PublicKey {
             self.public_key()
         }
 
         fn __str__(&self) -> String {
             hex::encode(self.to_bytes())
         }
+
+        #[pyo3(name = "derive_hardened")]
+        fn py_derive_hardened(&self, idx: u32) -> Self {
+            self.derive_hardened(idx)
+        }
+
+        #[pyo3(name = "derive_unhardened")]
+        fn py_derive_unhardened(&self, idx: u32) -> Self {
+            self.derive_unhardened(idx)
+        }
     }
 
     impl ToJsonDict for SecretKey {

wheel/generate_type_stubs.py

@@ -389,6 +389,7 @@ def __init__(
             "def __str__(self) -> str: ...",
             "def __add__(self, other: G1Element) -> G1Element: ...",
             "def __iadd__(self, other: G1Element) -> G1Element: ...",
+            "def derive_unhardened(self, int) -> G1Element: ...",
         ],
     )
     print_class(
@@ -426,6 +427,9 @@ def __init__(
             "def sign_g2(self, msg: bytes, dst: bytes) -> G2Element: ...",
             "def get_g1(self) -> G1Element: ...",
             "def __str__(self) -> str: ...",
+            "def public_key(self) -> G1Element: ...",
+            "def derive_hardened(self, int) -> PrivateKey: ...",
+            "def derive_unhardened(self, int) -> PrivateKey: ...",
         ],
     )
 

wheel/python/chia_rs/chia_rs.pyi

@@ -126,6 +126,7 @@ class G1Element:
     def __str__(self) -> str: ...
     def __add__(self, other: G1Element) -> G1Element: ...
     def __iadd__(self, other: G1Element) -> G1Element: ...
+    def derive_unhardened(self, int) -> G1Element: ...
     def __init__(
         self
     ) -> None: ...
@@ -211,6 +212,9 @@ class PrivateKey:
     def sign_g2(self, msg: bytes, dst: bytes) -> G2Element: ...
     def get_g1(self) -> G1Element: ...
     def __str__(self) -> str: ...
+    def public_key(self) -> G1Element: ...
+    def derive_hardened(self, int) -> PrivateKey: ...
+    def derive_unhardened(self, int) -> PrivateKey: ...
     def __init__(
         self
     ) -> None: ...