1 files changed, 0 insertions, 94 deletions
diff --git a/board/cr50/tpm2/hkdf.c b/board/cr50/tpm2/hkdf.c
deleted file mode 100644
index d950d865ab..0000000000
--- a/board/cr50/tpm2/hkdf.c
+++ /dev/null
@@ -1,94 +0,0 @@
-/* Copyright 2016 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"
-#include "util.h"
-
-#ifdef CRYPTO_TEST_SETUP
-
-#include "extension.h"
-
-enum {
-	TEST_RFC = 0,
-};
-
-#define MAX_OKM_BYTES 1024
-
-static void hkdf_command_handler(void *cmd_body,
-				size_t cmd_size,
-				size_t *response_size)
-{
-	uint8_t *cmd;
-	uint8_t *out;
-	uint8_t op;
-	size_t salt_len;
-	const uint8_t *salt;
-	size_t IKM_len;
-	const uint8_t *IKM;
-	size_t info_len;
-	const uint8_t *info;
-	size_t OKM_len;
-	uint8_t OKM[MAX_OKM_BYTES];
-
-	/* Command format.
-	 *
-	 *   WIDTH	   FIELD
-	 *   1		   OP
-	 *   1             MSB SALT LEN
-	 *   1             LSB SALT LEN
-	 *   SALT_LEN      SALT
-	 *   1             MSB IKM LEN
-	 *   1             LSB IKM LEN
-	 *   IKM_LEN       IKM
-	 *   1             MSB INFO LEN
-	 *   1             LSB INFO LEN
-	 *   INFO_LEN      INFO
-	 *   1             MSB OKM LEN
-	 *   1             LSB OKM LEN
-	 */
-	cmd = (uint8_t *) cmd_body;
-	out = (uint8_t *) cmd_body;
-	op = *cmd++;
-
-	salt_len = ((uint16_t) (cmd[0] << 8)) | cmd[1];
-	cmd += 2;
-	salt = cmd;
-	cmd += salt_len;
-
-	IKM_len = ((uint16_t) (cmd[0] << 8)) | cmd[1];
-	cmd += 2;
-	IKM = cmd;
-	cmd += IKM_len;
-
-	info_len = ((uint16_t) (cmd[0] << 8)) | cmd[1];
-	cmd += 2;
-	info = cmd;
-	cmd += info_len;
-
-	OKM_len = ((uint16_t) (cmd[0] << 8)) | cmd[1];
-
-	if (OKM_len > MAX_OKM_BYTES) {
-		*response_size = 0;
-		return;
-	}
-
-	switch (op) {
-	case TEST_RFC:
-		if (DCRYPTO_hkdf(OKM, OKM_len, salt, salt_len,
-					IKM, IKM_len, info, info_len)) {
-			memcpy(out, OKM, OKM_len);
-			*response_size = OKM_len;
-		} else {
-			*response_size = 0;
-		}
-		break;
-	default:
-		*response_size = 0;
-	}
-}
-
-DECLARE_EXTENSION_COMMAND(EXTENSION_HKDF, hkdf_command_handler);
-
-#endif   /* CRYPTO_TEST_SETUP */