--- components/web_package/signed_web_bundles/ecdsa_p256_sha256_signature.cc.orig	2026-09-25 15:26:43 UTC
+++ components/web_package/signed_web_bundles/ecdsa_p256_sha256_signature.cc
@@ -9,7 +9,8 @@
 #include "base/strings/stringprintf.h"
 #include "base/types/expected.h"
 #include "components/web_package/signed_web_bundles/ecdsa_p256_public_key.h"
-#include "components/web_package/signed_web_bundles/rust/signed_web_bundles_rust.h"
+#include "crypto/keypair.h"
+#include "crypto/sign.h"
 
 namespace web_package {
 
@@ -50,8 +51,9 @@ EcdsaP256SHA256Signature::EcdsaP256SHA256Signature(std
 [[nodiscard]] bool EcdsaP256SHA256Signature::Verify(
     base::span<const uint8_t> message,
     const EcdsaP256PublicKey& public_key) const {
-  return signed_web_bundles::rust::verify_ecdsa_p256_signature(
-      public_key.bytes(), bytes(), message);
+  auto key = crypto::keypair::PublicKey::FromEcP256Point(public_key.bytes());
+  return crypto::sign::Verify(crypto::sign::ECDSA_SHA256, *key, message,
+                              bytes());
 }
 
 }  // namespace web_package