From bbfd2ab18f52600aa41f061b2da9a2afe2a9d6ac Mon Sep 17 00:00:00 2001
From: Mathieu Trudel-Lapierre <cyphermox@ubuntu.com>
Date: Fri, 4 Aug 2017 12:10:50 -0400
Subject: Import Upstream version 0.9+1474479173.6c180c6

---
 Cryptlib/Hash/CryptSha1.c | 184 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 184 insertions(+)
 create mode 100644 Cryptlib/Hash/CryptSha1.c

(limited to 'Cryptlib/Hash/CryptSha1.c')

diff --git a/Cryptlib/Hash/CryptSha1.c b/Cryptlib/Hash/CryptSha1.c
new file mode 100644
index 00000000..78c29c1b
--- /dev/null
+++ b/Cryptlib/Hash/CryptSha1.c
@@ -0,0 +1,184 @@
+/** @file
+  SHA-1 Digest Wrapper Implementation over OpenSSL.
+
+Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "InternalCryptLib.h"
+#include <openssl/sha.h>
+
+
+/**
+  Retrieves the size, in bytes, of the context buffer required for SHA-1 hash operations.
+
+  @return  The size, in bytes, of the context buffer required for SHA-1 hash operations.
+
+**/
+UINTN
+EFIAPI
+Sha1GetContextSize (
+  VOID
+  )
+{
+  //
+  // Retrieves OpenSSL SHA Context Size
+  //
+  return (UINTN) (sizeof (SHA_CTX));
+}
+
+/**
+  Initializes user-supplied memory pointed by Sha1Context as SHA-1 hash context for
+  subsequent use.
+
+  If Sha1Context is NULL, then return FALSE.
+
+  @param[out]  Sha1Context  Pointer to SHA-1 context being initialized.
+
+  @retval TRUE   SHA-1 context initialization succeeded.
+  @retval FALSE  SHA-1 context initialization failed.
+
+**/
+BOOLEAN
+EFIAPI
+Sha1Init (
+  OUT  VOID  *Sha1Context
+  )
+{
+  //
+  // Check input parameters.
+  //
+  if (Sha1Context == NULL) {
+    return FALSE;
+  }
+
+  //
+  // OpenSSL SHA-1 Context Initialization
+  //
+  return (BOOLEAN) (SHA1_Init ((SHA_CTX *) Sha1Context));
+}
+
+/**
+  Makes a copy of an existing SHA-1 context.
+
+  If Sha1Context is NULL, then return FALSE.
+  If NewSha1Context is NULL, then return FALSE.
+
+  @param[in]  Sha1Context     Pointer to SHA-1 context being copied.
+  @param[out] NewSha1Context  Pointer to new SHA-1 context.
+
+  @retval TRUE   SHA-1 context copy succeeded.
+  @retval FALSE  SHA-1 context copy failed.
+
+**/
+BOOLEAN
+EFIAPI
+Sha1Duplicate (
+  IN   CONST VOID  *Sha1Context,
+  OUT  VOID        *NewSha1Context
+  )
+{
+  //
+  // Check input parameters.
+  //
+  if (Sha1Context == NULL || NewSha1Context == NULL) {
+    return FALSE;
+  }
+
+  CopyMem (NewSha1Context, Sha1Context, sizeof (SHA_CTX));
+
+  return TRUE;
+}
+
+/**
+  Digests the input data and updates SHA-1 context.
+
+  This function performs SHA-1 digest on a data buffer of the specified size.
+  It can be called multiple times to compute the digest of long or discontinuous data streams.
+  SHA-1 context should be already correctly intialized by Sha1Init(), and should not be finalized
+  by Sha1Final(). Behavior with invalid context is undefined.
+
+  If Sha1Context is NULL, then return FALSE.
+
+  @param[in, out]  Sha1Context  Pointer to the SHA-1 context.
+  @param[in]       Data         Pointer to the buffer containing the data to be hashed.
+  @param[in]       DataSize     Size of Data buffer in bytes.
+
+  @retval TRUE   SHA-1 data digest succeeded.
+  @retval FALSE  SHA-1 data digest failed.
+
+**/
+BOOLEAN
+EFIAPI
+Sha1Update (
+  IN OUT  VOID        *Sha1Context,
+  IN      CONST VOID  *Data,
+  IN      UINTN       DataSize
+  )
+{
+  //
+  // Check input parameters.
+  //
+  if (Sha1Context == NULL) {
+    return FALSE;
+  }
+
+  //
+  // Check invalid parameters, in case that only DataLength was checked in OpenSSL
+  //
+  if (Data == NULL && DataSize != 0) {
+    return FALSE;
+  }
+
+  //
+  // OpenSSL SHA-1 Hash Update
+  //
+  return (BOOLEAN) (SHA1_Update ((SHA_CTX *) Sha1Context, Data, DataSize));
+}
+
+/**
+  Completes computation of the SHA-1 digest value.
+
+  This function completes SHA-1 hash computation and retrieves the digest value into
+  the specified memory. After this function has been called, the SHA-1 context cannot
+  be used again.
+  SHA-1 context should be already correctly intialized by Sha1Init(), and should not be
+  finalized by Sha1Final(). Behavior with invalid SHA-1 context is undefined.
+
+  If Sha1Context is NULL, then return FALSE.
+  If HashValue is NULL, then return FALSE.
+
+  @param[in, out]  Sha1Context  Pointer to the SHA-1 context.
+  @param[out]      HashValue    Pointer to a buffer that receives the SHA-1 digest
+                                value (20 bytes).
+
+  @retval TRUE   SHA-1 digest computation succeeded.
+  @retval FALSE  SHA-1 digest computation failed.
+
+**/
+BOOLEAN
+EFIAPI
+Sha1Final (
+  IN OUT  VOID   *Sha1Context,
+  OUT     UINT8  *HashValue
+  )
+{
+  //
+  // Check input parameters.
+  //
+  if (Sha1Context == NULL || HashValue == NULL) {
+    return FALSE;
+  }
+
+  //
+  // OpenSSL SHA-1 Hash Finalization
+  //
+  return (BOOLEAN) (SHA1_Final (HashValue, (SHA_CTX *) Sha1Context));
+}
-- 
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