1 files changed, 36 insertions, 0 deletions
diff --git a/firmware/2lib/2stub_hwcrypto.c b/firmware/2lib/2stub_hwcrypto.c
new file mode 100644
index 00000000..542a5edc
--- /dev/null
+++ b/firmware/2lib/2stub_hwcrypto.c
@@ -0,0 +1,36 @@
+/* Copyright 2020 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * Stub hwcrypto API implementations which should be implemented by the caller.
+ */
+
+#include "2api.h"
+
+__attribute__((weak))
+vb2_error_t vb2ex_hwcrypto_digest_init(enum vb2_hash_algorithm hash_alg,
+				       uint32_t data_size)
+{
+	return VB2_ERROR_EX_HWCRYPTO_UNSUPPORTED;
+}
+
+__attribute__((weak))
+vb2_error_t vb2ex_hwcrypto_digest_extend(const uint8_t *buf, uint32_t size)
+{
+	return VB2_ERROR_SHA_EXTEND_ALGORITHM;  /* Should not be called. */
+}
+
+__attribute__((weak))
+vb2_error_t vb2ex_hwcrypto_digest_finalize(uint8_t *digest,
+					   uint32_t digest_size)
+{
+	return VB2_ERROR_SHA_FINALIZE_ALGORITHM;  /* Should not be called. */
+}
+
+__attribute__((weak))
+vb2_error_t vb2ex_hwcrypto_rsa_verify_digest(const struct vb2_public_key *key,
+					     const uint8_t *sig, const uint8_t *digest)
+{
+	return VB2_ERROR_EX_HWCRYPTO_UNSUPPORTED;
+}
+