Make SHA256_update and SHA512_update if the passed in length is greater than UINT32_MAX

firmware/lib/cryptolib/include/sha.h

 /* 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.
  */
 
 /* SHA-1, 256 and 512 functions. */
 
 #ifndef VBOOT_REFERENCE_SHA_H_
 #define VBOOT_REFERENCE_SHA_H_
 
@@ skipping 40 matching lines @@
   uint8_t block[2 * SHA512_BLOCK_SIZE];
   uint8_t buf[SHA512_DIGEST_SIZE];  /* Used for storing the final digest. */
 } SHA512_CTX;
 
 
 void SHA1_init(SHA1_CTX* ctx);
 void SHA1_update(SHA1_CTX* ctx, const uint8_t* data, uint64_t len);
 uint8_t* SHA1_final(SHA1_CTX* ctx);
 
 void SHA256_init(SHA256_CTX* ctx);
-void SHA256_update(SHA256_CTX* ctx, const uint8_t* data, uint64_t len);
+void SHA256_update(SHA256_CTX* ctx, const uint8_t* data, uint32_t len);
 uint8_t* SHA256_final(SHA256_CTX* ctx);
 
 void SHA512_init(SHA512_CTX* ctx);
-void SHA512_update(SHA512_CTX* ctx, const uint8_t* data, uint64_t len);
+void SHA512_update(SHA512_CTX* ctx, const uint8_t* data, uint32_t len);
 uint8_t* SHA512_final(SHA512_CTX* ctx);
 
 /* Convenience function for SHA-1.  Computes hash on [data] of length [len].
  * and stores it into [digest]. [digest] should be pre-allocated to
  * SHA1_DIGEST_SIZE bytes.
  */
 uint8_t* SHA1(const uint8_t* data, uint64_t len, uint8_t* digest);
 
 /* Convenience function for SHA-256.  Computes hash on [data] of length [len].
  * and stores it into [digest]. [digest] should be pre-allocated to
@@ skipping 43 matching lines @@
 uint8_t* DigestFile(char* input_file, int sig_algorithm);
 
 /* Returns the appropriate digest of [buf] of length
  * [len] based on the signature [algorithm].
  * Caller owns the returned digest and must free it.
  */
 uint8_t* DigestBuf(const uint8_t* buf, uint64_t len, int sig_algorithm);
 
 
 #endif  /* VBOOT_REFERENCE_SHA_H_ */