Add ecdh and P256 bindings to bssl-crypto
Bug: 285223043
Change-Id: Ia997b9765476d05c58649ee49ebf04905e65c478
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/60267
Reviewed-by: Bob Beck <bbe@google.com>
Commit-Queue: Bob Beck <bbe@google.com>
diff --git a/rust/bssl-crypto/src/lib.rs b/rust/bssl-crypto/src/lib.rs
index 99140b7..0ad352d 100644
--- a/rust/bssl-crypto/src/lib.rs
+++ b/rust/bssl-crypto/src/lib.rs
@@ -53,6 +53,13 @@
/// Memory-manipulation operations.
pub mod mem;
+/// Elliptic curve diffie-hellman operations.
+pub mod ecdh;
+
+pub(crate) mod bn;
+pub(crate) mod ec;
+pub(crate) mod pkey;
+
#[cfg(test)]
mod test_helpers;
@@ -111,7 +118,7 @@
/// Implementations of `ForeignTypeRef` must guarantee the following:
///
/// - `Self::from_ptr(x).as_ptr() == x`
-/// - `Self::from_mut_ptr(x).as_ptr() == x`
+/// - `Self::from_ptr_mut(x).as_ptr() == x`
unsafe trait ForeignTypeRef: Sized {
/// The raw C type.
type CType;
@@ -144,3 +151,26 @@
self as *const _ as *mut _
}
}
+
+/// A helper trait implemented by types which has an owned reference to foreign types.
+///
+/// # Safety
+///
+/// Implementations of `ForeignType` must guarantee the following:
+///
+/// - `Self::from_ptr(x).as_ptr() == x`
+unsafe trait ForeignType {
+ /// The raw C type.
+ type CType;
+
+ /// Constructs an instance of this type from its raw type.
+ ///
+ /// # Safety
+ ///
+ /// - `ptr` must be a valid, immutable, instance of `CType`.
+ /// - Ownership of `ptr` is passed to the implementation, and will free `ptr` when dropped.
+ unsafe fn from_ptr(ptr: *mut Self::CType) -> Self;
+
+ /// Returns a raw pointer to the wrapped value.
+ fn as_ptr(&self) -> *mut Self::CType;
+}
