1 files changed, 0 insertions, 31 deletions
diff --git a/chip/host/dcrypto/app_key.c b/chip/host/dcrypto/app_key.c
deleted file mode 100644
index 58066c84ba..0000000000
--- a/chip/host/dcrypto/app_key.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright 2018 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.
- */
-
-#include "dcrypto.h"
-
-static int dcrypto_appkey_init_flag_ = -1;
-
-int DCRYPTO_appkey_init(enum dcrypto_appid appid, struct APPKEY_CTX *ctx)
-{
-	if (dcrypto_appkey_init_flag_ != -1)
-		return 0;
-
-	dcrypto_appkey_init_flag_ = appid;
-	return 1;
-}
-
-void DCRYPTO_appkey_finish(struct APPKEY_CTX *ctx)
-{
-	memset(ctx, 0, sizeof(struct APPKEY_CTX));
-	dcrypto_appkey_init_flag_ = -1;
-}
-
-int DCRYPTO_appkey_derive(enum dcrypto_appid appid, const uint32_t input[8],
-			  uint32_t output[8])
-{
-	/* See README.md for while this is a passthrough. */
-	memcpy(output, input, SHA256_DIGEST_SIZE);
-	return 1;
-}