1 files changed, 145 insertions, 0 deletions
diff --git a/CryptoPkg/Library/BaseCryptLib/Hash/CryptSha1.c b/CryptoPkg/Library/BaseCryptLib/Hash/CryptSha1.c
new file mode 100644
index 0000000000..d774059300
--- /dev/null
+++ b/CryptoPkg/Library/BaseCryptLib/Hash/CryptSha1.c
@@ -0,0 +1,145 @@
+/** @file
+  SHA-1 Digest Wrapper Implementation over OpenSSL.
+
+Copyright (c) 2009 - 2010, 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 <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+
+#include <Library/BaseCryptLib.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 the SHA-1 hash context for
+  subsequent use.
+
+  If Sha1Context is NULL, then ASSERT().
+
+  @param[in, out]  Sha1Context  Pointer to the SHA-1 Context being initialized.
+
+  @retval TRUE   SHA-1 initialization succeeded.
+  @retval FALSE  SHA-1 initialization failed.
+
+**/
+BOOLEAN
+EFIAPI
+Sha1Init (
+  IN OUT  VOID  *Sha1Context
+  )
+{
+  //
+  // ASSERT if Sha1Context is NULL
+  //
+  ASSERT (Sha1Context != NULL);
+
+  //
+  // OpenSSL SHA-1 Context Initialization
+  //
+  return (BOOLEAN) (SHA1_Init ((SHA_CTX *)Sha1Context));
+}
+
+
+/**
+  Performs SHA-1 digest on a data buffer of the specified length. This function can
+  be called multiple times to compute the digest of long or discontinuous data streams.
+
+  If Sha1Context is NULL, then ASSERT().
+
+  @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]       DataLength   Length of Data buffer in bytes.
+
+  @retval TRUE   SHA-1 data digest succeeded.
+  @retval FALSE  Invalid SHA-1 context. After Sha1Final function has been called, the
+                 SHA-1 context cannot be reused.
+
+**/
+BOOLEAN
+EFIAPI
+Sha1Update (
+  IN OUT  VOID        *Sha1Context,
+  IN      CONST VOID  *Data,
+  IN      UINTN       DataLength
+  )
+{
+  //
+  // ASSERT if Sha1Context is NULL
+  //
+  ASSERT (Sha1Context != NULL);
+
+  //
+  // ASSERT if invalid parameters, in case that only DataLength was checked in OpenSSL
+  //
+  if (Data == NULL) {
+    ASSERT (DataLength == 0);
+  }
+
+  //
+  // OpenSSL SHA-1 Hash Update
+  //
+  return (BOOLEAN) (SHA1_Update ((SHA_CTX *)Sha1Context, Data, DataLength));
+}
+
+
+/**
+  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.
+
+  If Sha1Context is NULL, then ASSERT().
+  If HashValue is NULL, then ASSERT().
+
+  @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
+  )
+{
+  //
+  // ASSERT if Sha1Context is NULL or HashValue is NULL
+  //
+  ASSERT (Sha1Context != NULL);
+  ASSERT (HashValue   != NULL);
+
+  //
+  // OpenSSL SHA-1 Hash Finalization
+  //
+  return (BOOLEAN) (SHA1_Final (HashValue, (SHA_CTX *)Sha1Context));
+}