Add generic wrappers for performing message digest operations.

src/platform/vboot_reference/tests/digest_utility.h

Index: src/platform/vboot_reference/tests/digest_utility.h
diff --git a/src/platform/vboot_reference/tests/digest_utility.h b/src/platform/vboot_reference/tests/digest_utility.h
deleted file mode 100644
index 9d59efb19f769fff1415dbf2e457fbb5e07130b8..0000000000000000000000000000000000000000
--- a/src/platform/vboot_reference/tests/digest_utility.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/* Copyright (c) 2010 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.
- */
-
-/* Utility functions for message digest functions. */
-
-#ifndef VBOOT_REFERENCE_DIGEST_UTILITY_H_
-#define VBOOT_REFERENCE_DIGEST_UTILITY_H_
-
-#include <inttypes.h>
-
-/* Returns the SHA-1 digest of data in [input_file].
- * Caller owns the returned digest and must free it.
- */
-uint8_t* SHA1_file(char *input_file);
-
-/* Returns the SHA-256 digest of data in [input_file].
- * Caller owns the returned digest and must free it.
- */
-uint8_t* SHA256_file(char *input_file);
-
-/* Returns the SHA-512 digest of data in [input_file].
- * Caller owns the returned digest and must free it.
- */
-uint8_t* SHA512_file(char *input_file);
-
-/* Returns the appropriate digest for the data in [input_file]
- * based on the signature [algorithm].
- * Caller owns the returned digest and must free it.
- */
-uint8_t* calculate_digest(char *input_file, int algorithm);
-
-#endif  /* VBOOT_REFERENCE_DIGEST_UTILITY_H_ */